BLACKROCK LIQUIDITY FUNDS
LOGO    FEBRUARY 28, 2023
 
 
 
 
Prospectus
 
BlackRock Liquidity Funds  |  Dollar Shares
 
  TempCash
Dollar: TCDXX
 
  TempFund
Dollar: TDOXX
 
  BlackRock Liquid Federal Trust Fund
Dollar: TSDXX
 
  FedFund
Dollar: TDDXX
 
  T‑Fund
Dollar: TFEXX
 
  Treasury Trust Fund
Dollar: TTDXX
 
  MuniCash
Dollar: MCDXX
 
This Prospectus contains information you should know before investing, including information about risks. Please read it before you invest and keep it for future reference.
The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this Prospectus. Any representation to the contrary is a criminal offense.
 
Not FDIC Insured • May Lose Value • No Bank Guarantee

Table of Contents
 
 
 
   Key facts and details about the Funds listed in this prospectus, including investment objectives, principal investment strategies, principal risk factors, fee and expense information, and historical performance information   
   Key Facts About TempCash      3  
   Key Facts About TempFund      8  
   Key Facts About BlackRock Liquid Federal Trust Fund      13  
   Key Facts About FedFund      18  
   Key Facts About T-Fund      23  
   Key Facts About Treasury Trust Fund      28  
   Key Facts About MuniCash      32  
   Information about how each Fund invests, including investment objectives, investment processes, principal strategies and risk factors   
   How Each Fund Invests      37  
   Investment Risks      41  
   Information about account services, shareholder transactions, and distribution and other payments   
   Valuation of Fund Investments and Price of Fund Shares      48  
   Purchase of Shares      49  
   Redemption of Shares      51  
   Additional Purchase and Redemption Information      53  
   Liquidity Fees and Redemption Gates      54  
   Distribution and Shareholder Servicing Payments      54  
   Dividends and Distributions      55  
   Federal Taxes      55  
   State and Local Taxes      57  
   Information About BlackRock   
   BlackRock      58  
   Conflicts of Interest      60  
   Master/Feeder Structure      61  
   Financial Performance of the Funds      62  
   Certain Fund Policies      69  
   Glossary of Investment Terms      70  
   Funds and Service Providers      71  
   How to Contact BlackRock Liquidity Funds    Inside Back Cover  
   Additional Information    Back Cover  

Fund Overview
 
Key Facts About TempCash
Investment Objective
 
The investment objective of TempCash (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek as high a level of current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Dollar Shares of TempCash. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Dollar Shares
Management Fee
     0.25%
Distribution (12b‑1) Fees
     None
Other Expenses
     0.26%
Shareholder Servicing Fees
     0.25%              
Miscellaneous/Other Expenses
     0.01%             
    
 
Total Annual Fund Operating Expenses
     0.51%
Fee Waivers and/or Expense Reimbursements1
     (0.08)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1
     0.43%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 58, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.18% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Dollar Shares
   $44    $155    $277    $633
Principal Investment Strategies of the Fund
 
TempCash invests in a broad range of U.S. dollar-denominated money market instruments, including government, U.S. and foreign bank, and commercial obligations and repurchase agreements. Under normal market conditions, at least 25% and normally a substantial portion of the Fund’s total assets will be invested in obligations of issuers in the financial services industry and repurchase agreements secured by such obligations. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less.
 
3 - TempCash 

In addition, the Fund may invest in mortgage‑ and asset-backed securities, short-term obligations issued by or on behalf of states, territories and possessions of the United States, the District of Columbia, and their respective authorities, agencies, instrumentalities and political subdivisions and derivative securities such as beneficial interests in municipal trust certificates and partnership trusts. The Fund may also invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. 
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees (the “Board”). 
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The Fund may impose a fee upon the sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.
The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Financial Services Industry Risk — Because of its concentration in the financial services industry, the Fund will be more susceptible to any economic, business, political or other developments which generally affect this industry sector. As a result, the Fund will be exposed to a large extent to the risks associated with that industry, such as government regulation, the availability and cost of capital funds, consolidation and general economic conditions. Financial services companies are also exposed to losses if borrowers and other counterparties experience financial problems and/or cannot repay their obligations. 
When interest rates go up, the value of securities issued by many types of financial services companies generally goes down. In many countries, financial services and the companies that provide them are regulated by governmental entities, which can increase costs for new services or products and make it difficult to pass increased costs on to consumers. In certain areas, deregulation of financial services companies has resulted in increased competition and reduced profitability for certain companies. 
The profitability of many types of financial services companies may be adversely affected in certain market cycles, including periods of rising interest rates, which may restrict the availability and increase the cost of capital, and declining economic conditions, which may cause credit losses due to financial difficulties of borrowers. Because many types of financial services companies are vulnerable to these economic cycles, a large portion of the Fund’s investments may lose value during such periods. 
 
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Liquidity Fee and Redemption Gate Risk — The Board has discretion to impose a liquidity fee of up to 2% upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. Accordingly, you may not be able to sell your shares or your redemptions may be subject to a liquidity fee when you sell your shares at certain times. 
 
4 - TempCash 

 
Extension Risk — When interest rates rise, certain obligations will be paid off by the obligor more slowly than anticipated, causing the value of these securities to fall. 
 
 
Foreign Exposure Risk — Securities issued or supported by foreign entities, including foreign banks and corporations, may involve additional risks and considerations. Extensive public information about the foreign issuer may not be available, and unfavorable political, economic or governmental developments in the foreign country involved could affect the payment of principal and interest.  
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Mortgage‑ and Asset-Backed Securities Risks — Mortgage‑ and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust. Mortgage- and asset-backed securities are subject to credit, interest rate, prepayment and extension risks. These securities also are subject to risk of default on the underlying mortgage or asset, particularly during periods of economic downturn. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain mortgage-backed securities. 
 
 
Prepayment Risk — When interest rates fall, certain obligations will be paid off by the obligor more quickly than originally anticipated, and the Fund may have to invest the proceeds in securities with lower yields. 
 
 
Repurchase Agreements Risk — If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
5 - TempCash 

 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
Performance Information
 
The information shows you how TempCash’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Effective October 11, 2016, the Fund implemented additional amendments to Rule 2a-7, including the adoption of a floating net asset value (“NAV”) per Fund share. Fund performance shown prior to October 11, 2016 is based on 1940 Act rules then in effect and is not an indication of future returns. Between October 1, 2015 and February 28, 2017, the Fund operated under a different investment policy such that it would invest only in securities that, under normal circumstances, would mature (without reference to interest rate adjustment dates), or were subject to an unconditional demand feature that was exercisable and payable, within 5 business days or less. Investors should note that the historical yield and performance information shown for this period are based on the investment policy of the Fund relating to maturity restrictions then in effect. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441-7450.
TempCash
Dollar Shares
ANNUAL TOTAL RETURNS1
As of 12/31
  
LOGO
During the ten-year period shown in the bar chart, the highest return for a quarter was 14.02% (quarter ended December 31, 2018) and the lowest return for a quarter was -0.04% (quarter ended March 31, 2022). 
 
6 - TempCash 

For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years1    10 Years1
TempCash—Dollar Shares
     1.45%    3.71%    1.93%
       7-Day Yield
As of December 31, 2022
TempCash—Dollar Shares
     4.12%
1 
A portion of the Fund’s total return was attributable to a special income distribution that took place on December 12, 2018.
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
TempCash’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”). The Fund’s sub-adviser is BlackRock International Limited (the “Sub-Adviser”). Where applicable, “BlackRock” refers also to the Sub-Adviser.
Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of the Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund’s office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302‑797‑2350), through the Fund’s internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. You have until the close of the federal funds wire (normally 6:45 p.m. Eastern time) to get your purchase money in to the Fund or your purchase order may be cancelled.
Purchase orders must be placed in dollars.
The Fund’s initial and subsequent investment minimums generally are as follows, although the Fund’s officers may reduce or waive the minimums in some cases:
 
     Dollar Shares
Minimum Initial Investment
  $5,000 (however, Financial Intermediaries may set a higher minimum for their customers).
Minimum Additional Investment
  No subsequent minimum.
Tax Information
 
Dividends and distributions paid by TempCash may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of TempCash through a broker-dealer or other Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
7 - TempCash

Fund Overview
 
Key Facts About TempFund
Investment Objective
 
The investment objective of TempFund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek as high a level of current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Dollar Shares of TempFund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Dollar Shares
Management Fee
     0.23%
Distribution (12b‑1) Fees
     None
Other Expenses
     0.27%
Shareholder Servicing Fees
     0.25%              
Miscellaneous/Other Expenses
     0.02%             
    
 
Total Annual Fund Operating Expenses
     0.50%
Fee Waivers and/or Expense Reimbursements1
     (0.07)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1
     0.43%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 58, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.18% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Dollar Shares
   $44    $153    $273    $621
Principal Investment Strategies of the Fund
 
TempFund invests in a broad range of U.S. dollar-denominated money market instruments, including government, U.S. and foreign bank, and commercial obligations and repurchase agreements. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. 
 
 
8 - TempFund

In addition, the Fund may invest in mortgage‑ and asset-backed securities, short-term obligations issued by or on behalf of states, territories and possessions of the United States, the District of Columbia, and their respective authorities, agencies, instrumentalities and political subdivisions and derivative securities such as beneficial interests in municipal trust certificates and partnership trusts. The Fund may also invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. 
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees (the “Board”). 
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The Fund may impose a fee upon the sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.
The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Liquidity Fee and Redemption Gate Risk — The Board has discretion to impose a liquidity fee of up to 2% upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. Accordingly, you may not be able to sell your shares or your redemptions may be subject to a liquidity fee when you sell your shares at certain times. 
 
 
Extension Risk — When interest rates rise, certain obligations will be paid off by the obligor more slowly than anticipated, causing the value of these securities to fall. 
 
 
Foreign Exposure Risk — Securities issued or supported by foreign entities, including foreign banks and corporations, may involve additional risks and considerations. Extensive public information about the foreign issuer may not be available, and unfavorable political, economic or governmental developments in the foreign country involved could affect the payment of principal and interest. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of 
 
9 - TempFund

 
countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Mortgage‑ and Asset-Backed Securities Risks — Mortgage‑ and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust. Mortgage- and asset-backed securities are subject to credit, interest rate, prepayment and extension risks. These securities also are subject to risk of default on the underlying mortgage or asset, particularly during periods of economic downturn. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain mortgage-backed securities. 
 
 
Prepayment Risk — When interest rates fall, certain obligations will be paid off by the obligor more quickly than originally anticipated, and the Fund may have to invest the proceeds in securities with lower yields. 
 
 
Repurchase Agreements Risk — If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
 
10 - TempFund

Performance Information
 
The information shows you how TempFund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Effective October 11, 2016, the Fund implemented additional amendments to Rule 2a-7, including the adoption of a floating net asset value (“NAV”) per Fund share. Fund performance shown prior to October 11, 2016 is based on 1940 Act rules then in effect and is not an indication of future returns. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
TempFund
Dollar Shares
ANNUAL TOTAL RETURNS
As of 12/31
  
LOGO
During the ten-year period shown in the bar chart, the highest return for a quarter was 0.89% (quarter ended December 31, 2022) and the lowest return for a quarter was -0.04% (quarter ended March 31, 2022). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
TempFund—Dollar Shares
     1.46%    1.14%    0.69%
       7-Day Yield
As of December 31, 2022
TempFund—Dollar Shares
     4.13%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
 
11 - TempFund

Investment Manager
 
TempFund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”). The Fund’s sub-adviser is BlackRock International Limited (the “Sub-Adviser”). Where applicable, “BlackRock” refers also to the Sub-Adviser.
Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of the Fund at multiple times each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund’s office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302-797-2350), through the Fund’s internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. The Fund does not accept trades through the NSCC Fund/SERV or DCC&S trading platforms. Orders must be received by the Fund prior to the next NAV cut-off time to receive that NAV. You have until the close of the federal funds wire (normally 6:45 p.m. Eastern time) to get your purchase money in to the Fund or your purchase order may be cancelled.
Purchase orders must be placed in dollars.
The Fund’s initial and subsequent investment minimums generally are as follows, although the Fund’s officers may reduce or waive the minimums in some cases:
 
     Dollar Shares
Minimum Initial Investment
  $5,000 (however, Financial Intermediaries may set a higher minimum for their customers).
Minimum Additional Investment
  No subsequent minimum.
Tax Information
 
Dividends and distributions paid by TempFund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of TempFund through a broker-dealer or other Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
12 - TempFund

Fund Overview
 
Key Facts About BlackRock Liquid Federal Trust Fund
Investment Objective
 
The investment objective of BlackRock Liquid Federal Trust Fund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Dollar Shares of BlackRock Liquid Federal Trust Fund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Dollar Shares
Management Fee
     0.20%
Distribution (12b‑1) Fees
     None
Other Expenses
     0.27%
Shareholder Servicing Fees
     0.25%              
Miscellaneous/Other Expenses
     0.02%              
    
 
Total Annual Fund Operating Expenses
     0.47%
Fee Waivers and/or Expense Reimbursements1
     (0.05)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1
     0.42%
    
 
1
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 58, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Dollar Shares
   $43    $146    $258    $587
Principal Investment Strategies of the Fund
 
BlackRock Liquid Federal Trust Fund invests 100% of its total assets in cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities, the interest income on which, under current federal law, generally may not be subject to state income tax. The Fund invests in securities 
 
13 - BlackRock Liquid Federal Trust Fund

maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. 
The Fund will invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities, the interest income on which, under current federal law, generally may not be subject to state income tax. This policy is a non-fundamental policy of the Fund and the Fund will not change the policy without providing shareholders with at least 60 days’ prior notice of any change in the policy. 
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees. 
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
 
14 - BlackRock Liquid Federal Trust Fund

An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Stable Net Asset Value Risk — The Fund may not be able to maintain a stable net asset value (“NAV”) of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity. 
 
 
Trading Risk — In selling securities prior to maturity, the Fund may realize a price higher or lower than that paid to acquire such securities, depending upon whether interest rates have decreased or increased since their acquisition. In addition, shareholders in a state that imposes an income or franchise tax should determine through consultation with their own tax advisors whether the Fund’s interest income, when distributed by the Fund, will be considered by the state to have retained exempt status, and whether the Fund’s capital gain and other income, if any, when distributed, will be subject to the state’s income or franchise tax. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
 
15 - BlackRock Liquid Federal Trust Fund

Performance Information
 
The information shows you how BlackRock Liquid Federal Trust Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
BlackRock Liquid Federal Trust Fund
Dollar Shares
ANNUAL TOTAL RETURNS
As of 12/31
  
LOGO
During the ten-year period shown in the bar chart, the highest return for a quarter was 0.76% (quarter ended December 31, 2022) and the lowest return for a quarter was 0.00% (quarter ended September 30, 2021). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
BlackRock Liquid Federal Trust Fund—Dollar Shares
     1.24%    0.96%    0.53%
       7-Day Yield
As of December 31, 2022
BlackRock Liquid Federal Trust Fund—Dollar Shares
     3.62%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
BlackRock Liquid Federal Trust Fund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
 
16 - BlackRock Liquid Federal Trust Fund

Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of the Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund’s office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302-797-2350), through the Fund’s internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. The initial and subsequent investment minimums generally are as follows, although the Fund’s officers may reduce or waive the minimums in some cases:
 
     Dollar Shares
Minimum Initial Investment
  $5,000 (however, Financial Intermediaries may set a higher minimum for their customers).
Minimum Additional Investment
  No subsequent minimum.
Tax Information
 
Dividends and distributions paid by BlackRock Liquid Federal Trust Fund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of BlackRock Liquid Federal Trust Fund through a broker-dealer or other Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
17 - BlackRock Liquid Federal Trust Fund

Fund Overview
 
Key Facts About FedFund
Investment Objective
 
The investment objective of FedFund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Dollar Shares of FedFund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Dollar Shares
Management Fee
     0.18%
Distribution (12b‑1) Fees
     None
Other Expenses
     0.26%
Shareholder Servicing Fees
     0.25%              
Miscellaneous/Other Expenses
     0.01%              
    
 
Total Annual Fund Operating Expenses
     0.44%
Fee Waivers and/or Expense Reimbursements1
     (0.02)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1
     0.42%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 58, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Dollar Shares
   $43    $139    $244    $553
Principal Investment Strategies of the Fund
 
FedFund invests at least 99.5% of its total assets in cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, and repurchase agreements secured by such obligations or cash. The yield of the Fund is not directly tied to the federal funds rate. The Fund invests in securities maturing in 
 
18 - FedFund

397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. 
The Fund will invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, and repurchase agreements secured by such obligations. This policy is a non-fundamental policy of the Fund and the Fund will not change the policy without providing shareholders with at least 60 days’ prior notice of any change in the policy. 
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees. 
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Repurchase Agreements Risk — If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money. 
 
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of 
 
19 - FedFund

 
countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Stable Net Asset Value Risk — The Fund may not be able to maintain a stable net asset value (“NAV”) of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
 
20 - FedFund

Performance Information
 
The information shows you how FedFund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
FedFund
Dollar Shares
ANNUAL TOTAL RETURNS
As of 12/31
  
LOGO
During the ten-year period shown in the bar chart, the highest return for a quarter was 0.79% (quarter ended December 31, 2022) and the lowest return for a quarter was 0.00% (quarter ended June 30, 2020). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
FedFund—Dollar Shares
     1.32%    0.99%    0.56%
       7-Day Yield
As of December 31, 2022
FedFund—Dollar Shares
     3.78%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
FedFund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
 
21 - FedFund

Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of the Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund’s office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302-797-2350), through the Fund’s internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. The initial and subsequent investment minimums generally are as follows, although the Fund’s officers may reduce or waive the minimums in some cases:
 
     Dollar Shares
Minimum Initial Investment
  $5,000 (however, Financial Intermediaries may set a higher minimum for their customers).
Minimum Additional Investment
  No subsequent minimum.
Tax Information
 
Dividends and distributions paid by FedFund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of FedFund through a broker-dealer or other Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
22 - FedFund

Fund Overview
 
Key Facts About T‑Fund
Investment Objective
 
The investment objective of T‑Fund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Dollar Shares of T‑Fund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Dollar Shares
Management Fee
     0.18%
Distribution (12b‑1) Fees
     None
Other Expenses
     0.26%
Shareholder Servicing Fees
     0.25%              
Miscellaneous/Other Expenses
     0.01%              
    
 
Total Annual Fund Operating Expenses
     0.44%
Fee Waivers and/or Expense Reimbursements1
     (0.02)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1
     0.42%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 58, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Dollar Shares
   $43    $139    $244    $553
Principal Investment Strategies of the Fund
 
T-Fund invests at least 99.5% of its total assets in cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Treasury, and repurchase agreements secured by such obligations or cash. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. 
 
23 - T-Fund

The Fund will invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in U.S. Treasury bills, notes and other obligations of the U.S. Treasury, and repurchase agreements secured by such obligations. This policy is a non-fundamental policy of the Fund and the Fund will not change the policy without providing shareholders with at least 60 days’ prior notice of any change in the policy. 
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees. 
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
Repurchase Agreements Risk — If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money. 
 
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of 
 
24 - T-Fund

the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Stable Net Asset Value Risk — The Fund may not be able to maintain a stable net asset value (“NAV”) of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
 
25 - T-Fund

Performance Information
 
The information shows you how T-Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
T‑Fund
Dollar Shares
ANNUAL TOTAL RETURNS
As of 12/31
  
LOGO
During the ten-year period shown in the bar chart, the highest return for a quarter was 0.80% (quarter ended December 31, 2022) and the lowest return for a quarter was 0.00% (quarter ended March 31, 2022). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
T‑Fund—Dollar Shares
     1.32%    0.97%    0.54%
       7-Day Yield
As of December 31, 2022
T‑Fund—Dollar Shares
     3.78%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
T‑Fund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
 
26 - T-Fund

Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of the Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund’s office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302-797-2350), through the Fund’s internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. The initial and subsequent investment minimums generally are as follows, although the Fund’s officers may reduce or waive the minimums in some cases:
 
     Dollar Shares
Minimum Initial Investment
  $5,000 (however, Financial Intermediaries may set a higher minimum for their customers).
Minimum Additional Investment
  No subsequent minimum.
Tax Information
 
Dividends and distributions paid by T-Fund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of T-Fund through a broker-dealer or other Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
27 - T-Fund

Fund Overview
 
Key Facts About Treasury Trust Fund
Investment Objective
 
The investment objective of Treasury Trust Fund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Dollar Shares of Treasury Trust Fund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Dollar Shares
Management Fee
     0.18%
Distribution (12b‑1) Fees
     None
Other Expenses
     0.26%
Shareholder Servicing Fees
     0.25%              
Miscellaneous/Other Expenses
     0.01%              
    
 
Total Annual Fund Operating Expenses
     0.44%
Fee Waivers and/or Expense Reimbursements1
     (0.02)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1
     0.42%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 58, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year      3 Years      5 Years      10 Years  
Dollar Shares
   $ 43      $ 139      $ 244      $ 553  
Principal Investment Strategies of the Fund
 
Treasury Trust Fund invests 100% of its total assets in cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Treasury. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. 
 
28 - Treasury Trust Fund

The Fund will invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in U.S. Treasury bills, notes and other obligations of the U.S. Treasury. This policy is a non-fundamental policy of the Fund and the Fund will not change the policy without providing shareholders with at least 60 days’ prior notice of any change in the policy. 
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees. 
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
29 - Treasury Trust Fund

 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Stable Net Asset Value Risk — The Fund may not be able to maintain a stable net asset value (“NAV”) of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity. 
 
 
Trading Risk — In selling securities prior to maturity, the Fund may realize a price higher or lower than that paid to acquire such securities, depending upon whether interest rates have decreased or increased since their acquisition. In addition, shareholders in a state that imposes an income or franchise tax should determine through consultation with their own tax advisors whether the Fund’s interest income, when distributed by the Fund, will be considered by the state to have retained exempt status, and whether the Fund’s capital gain and other income, if any, when distributed, will be subject to the state’s income or franchise tax. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
Performance Information
 
The information shows you how Treasury Trust Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
Treasury Trust Fund
Dollar Shares
ANNUAL TOTAL RETURNS
As of 12/31
  
LOGO
 
30 - Treasury Trust Fund 

During the ten-year period shown in the bar chart, the highest return for a quarter was 0.79% (quarter ended December 31, 2022) and the lowest return for a quarter was 0.00% (quarter ended March 31, 2022). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
Treasury Trust Fund—Dollar Shares
     1.27%    0.98%    0.54%
       7-Day Yield
As of December 31, 2022
Treasury Trust Fund—Dollar Shares
     3.72%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
Treasury Trust Fund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of the Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund’s office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302-797-2350), through the Fund’s internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. The initial and subsequent investment minimums generally are as follows, although the Fund’s officers may reduce or waive the minimums in some cases:
 
     Dollar Shares
Minimum Initial Investment
  $5,000 (however, Financial Intermediaries may set a higher minimum for their customers).
Minimum Additional Investment
  No subsequent minimum.
Tax Information
 
Dividends and distributions paid by Treasury Trust Fund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of Treasury Trust Fund through a broker-dealer or other Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
31 - Treasury Trust Fund

Fund Overview
 
Key Facts About MuniCash
Investment Objective
 
The investment objective of MuniCash (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek as high a level of current income exempt from federal income tax as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Dollar Shares of MuniCash. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Dollar Shares
Management Fee
     0.27%
Distribution (12b‑1) Fees
     None
Other Expenses
     0.26%
Shareholder Servicing Fees
     0.25%              
Miscellaneous/Other Expenses
     0.01%              
    
 
Total Annual Fund Operating Expenses
     0.53%
Fee Waivers and/or Expense Reimbursements1
     (0.08)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1
     0.45%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 58, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.20% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year      3 Years      5 Years      10 Years  
Dollar Shares
   $ 46      $ 162      $ 288      $ 657  
 
32 - MuniCash

Principal Investment Strategies of the Fund
 
Under normal circumstances, MuniCash invests: (i) at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in a broad range of short-term obligations issued by or on behalf of states, territories and possessions of the United States, the District of Columbia, and their respective authorities, agencies, instrumentalities and political subdivisions and derivative securities, such as beneficial interests in municipal trust certificates and partnership trusts (“Municipal Obligations”), the interest on which, in the opinion of counsel to the issuer of the obligation, is exempt from regular federal income tax; or (ii) so that at least 80% of the income distributed by the Fund will be exempt from regular federal income tax. Municipal Obligations in which the Fund may invest will also not be subject to the federal alternative minimum tax. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may also invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis.
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees (the “Board”).
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The Fund may impose a fee upon the sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.
The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Municipal Securities Risks — Municipal securities risks include the ability of the issuer to repay the obligation, the relative lack of information about certain issuers of municipal securities, and the possibility of future legislative changes which could affect the market for and value of municipal securities. These risks include: 
General Obligation Bonds Risks — Timely payments depend on the issuer’s credit quality, ability to raise tax revenues and ability to maintain an adequate tax base. 
Revenue Bonds Risks — These payments depend on the money earned by the particular facility or class of facilities, or the amount of revenues derived from another source. 
Private Activity Bonds Risks — Municipalities and other public authorities issue private activity bonds to finance development of industrial facilities for use by a private enterprise. The private enterprise pays the principal and interest on the bond, and the issuer does not pledge its full faith, credit and taxing power for repayment. 
Moral Obligation Bonds Risks — Moral obligation bonds are generally issued by special purpose public authorities of a state or municipality. If the issuer is unable to meet its obligations, repayment of these bonds becomes a moral commitment, but not a legal obligation, of the state or municipality. 
Municipal Notes Risks — Municipal notes are shorter term municipal debt obligations. If there is a shortfall in the anticipated proceeds, the notes may not be fully repaid and the Fund may lose money. 
Municipal Lease Obligations Risks — In a municipal lease obligation, the issuer agrees to make payments when due on the lease obligation. Although the issuer does not pledge its unlimited taxing power for payment of the lease obligation, the lease obligation is secured by the leased property. 
 
33 - MuniCash 

Tax‑Exempt Status Risk — The Fund and its investment manager will rely on the opinion of issuers’ bond counsel and, in the case of derivative securities, sponsors’ counsel, on the tax‑exempt status of interest on municipal bonds and payments under derivative securities. Neither the Fund nor its investment manager will independently review the bases for those tax opinions, which may ultimately be determined to be incorrect and subject the Fund and its shareholders to substantial tax liabilities. 
 
 
Municipal Securities Concentration Risk — From time to time the Fund may invest a substantial amount of its assets in municipal securities whose interest is paid solely from revenues of similar projects. If the Fund concentrates its investments in this manner, it assumes the legal and economic risks relating to such projects and this may have a significant impact on the Fund’s investment performance. 
 
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Foreign Exposure Risk — Securities issued or supported by foreign entities, including foreign banks and corporations, may involve additional risks and considerations. Extensive public information about the foreign issuer may not be available, and unfavorable political, economic or governmental developments in the foreign country involved could affect the payment of principal and interest. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Liquidity Fee and Redemption Gate Risk — The Board has discretion to impose a liquidity fee of up to 2% upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. Accordingly, you may not be able to sell your shares or your redemptions may be subject to a liquidity fee when you sell your shares at certain times. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Taxability Risk — Future laws, regulations, rulings or court decisions may cause interest on municipal securities to be subject, directly or indirectly, to U.S. federal income taxation or currently exempt interest on state municipal securities to be subject to state or local income taxation, or the value of state municipal securities that are currently exempt to be subject to state or local intangible personal property tax, or may otherwise prevent the Fund from realizing the full current benefit of the tax-exempt status of such securities. Any such change could also affect the market price of such securities, and thus the value of an investment in the Fund. 
 
34 - MuniCash 

 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. Certain of these securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
Performance Information
 
The information shows you how MuniCash’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Effective October 11, 2016, the Fund implemented additional amendments to Rule 2a-7, including the adoption of a floating net asset value (“NAV”) per Fund share. Fund performance shown prior to October 11, 2016 is based on 1940 Act rules then in effect and is not an indication of future returns. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
MuniCash
Dollar Shares
ANNUAL TOTAL RETURNS
As of 12/31
  
LOGO
During the ten-year period shown in the bar chart, the highest return for a quarter was 0.49% (quarter ended December 31, 2022) and the lowest return for a quarter was -0.02% (quarter ended March 31, 2022). 
 
35 - MuniCash 

For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
MuniCash—Dollar Shares
     0.72%    0.63%    0.38%
       7‑Day Yield
As of December 31, 2022
MuniCash—Dollar Shares
     2.84%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
MuniCash’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of the Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund’s office in Wilmington, Delaware by telephone (800‑441‑7450; in Delaware 302-797-2350), through the Fund’s internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. You have until the close of the federal funds wire (normally 6:45 p.m. Eastern time) to get your purchase money in to the Fund or your purchase order may be cancelled.
Purchase orders must be placed in dollars.
The Fund’s initial and subsequent investment minimums generally are as follows, although the Fund’s officers may reduce or waive the minimums in some cases:
 
     Dollar Shares
Minimum Initial Investment
  $5,000 (however, Financial Intermediaries may set a higher minimum for their customers).
Minimum Additional Investment
  No subsequent minimum.
Tax Information
 
MuniCash anticipates that substantially all of its income dividends will be “exempt-interest dividends,” which are generally exempt from regular federal income taxes.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of MuniCash through a broker-dealer or other Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
36 - MuniCash

Details About the Funds
 
Included in this prospectus are sections that tell you about your shareholder rights, buying and selling shares, management information, and shareholder features of TempCash, TempFund and MuniCash, each of which is a non-retail, non-government money market fund under Rule 2a-7 under the Investment Company Act of 1940, as amended (the “1940 Act”) (each an “Institutional Fund”); BlackRock Liquid Federal Trust Fund, FedFund, T-Fund and Treasury Trust Fund, each a government money market fund under Rule 2a-7 (each a “Government Fund,” and collectively with the Institutional Funds, the “Funds”). Each Fund is a series of BlackRock Liquidity Funds (the “Trust”).
How Each Fund Invests
 
 
 
Each Fund will maintain a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. For a discussion of dollar-weighted average maturity and dollar-weighted average life, please see the Glossary on page 70.
 
 
Pursuant to Rule 2a-7, each Fund is subject to a “general liquidity requirement” that requires that each Fund hold securities that are sufficiently liquid to meet reasonably foreseeable shareholder redemptions in light of its obligations under Section 22(e) of the 1940 Act regarding share redemptions and any commitments the Fund has made to shareholders. To comply with this general liquidity requirement, BlackRock Advisors, LLC (“BlackRock”) must consider factors that could affect the Fund’s liquidity needs, including characteristics of the Fund’s investors and their likely redemptions. Depending upon the volatility of its cash flows (particularly shareholder redemptions), this may require a Fund to maintain greater liquidity than would be required by the daily and weekly minimum liquidity requirements discussed below.
 
 
No Fund will acquire any illiquid security (i.e., securities that cannot be sold or disposed of in the ordinary course of business within seven days at approximately the value ascribed to them by the Fund) if, immediately following such purchase, more than 5% of the Fund’s total assets are invested in illiquid securities.
 
 
No Fund (other than MuniCash) will acquire any security other than a daily liquid asset unless, immediately following such purchase, at least 10% of its total assets would be invested in daily liquid assets, and no Fund will acquire any security other than a weekly liquid asset unless, immediately following such purchase, at least 30% of its total assets would be invested in weekly liquid assets. For a discussion of daily liquid assets and weekly liquid assets, please see the Glossary on page 70.
 
 
Each Government Fund seeks to maintain a net asset value (“NAV”) of $1.00 per share.
 
 
Each Institutional Fund’s NAV per share, calculated as described in “Account Information—Valuation of Fund Investments and Price of Fund Shares,” will be quoted to the fourth decimal place (e.g., $1.0000), and is expected to fluctuate from time to time.
The Trust’s Board of Trustees (the “Board”) will be permitted to impose a liquidity fee on redemptions from each Institutional Fund (up to 2%) or temporarily restrict redemptions from each Institutional Fund for up to 10 business days during a 90 day period under certain circumstances. Please see the section below titled “Account Information—Liquidity Fees and Redemption Gates” for additional information about liquidity fees and redemption gates. The Board has chosen not to subject the Government Funds to liquidity fees or redemption gates due to declines in such Government Fund’s weekly liquid assets. If the Board changes this policy with respect to liquidity fees or redemption gates, such change would become effective only after shareholders are provided with advance notice of the change.
 
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Investment Objectives
 
Fund   
Investment Objective
TempCash
TempFund
   Each Fund seeks as high a level of current income as is consistent with liquidity and stability of principal.
BlackRock Liquid Federal Trust Fund
FedFund
T‑Fund
   Each Fund seeks current income as is consistent with liquidity and stability of principal.
Treasury Trust Fund
    
MuniCash
   The Fund seeks as high a level of current income exempt from federal income tax as is consistent with liquidity and stability of principal.
Except for MuniCash, the investment objective of each Fund may be changed by the Board without shareholder approval.
Investment Process
Each Fund invests in securities maturing within 397 days or less from the date of purchase, with certain exceptions. For example, certain government securities held by a Fund may have remaining maturities exceeding 397 days if such securities provide for adjustments in their interest rates not less frequently than every 397 days.
The securities purchased by a Fund are also subject to the quality, diversification, and other requirements of Rule 2a-7 under the 1940 Act, and other rules of the Securities and Exchange Commission (the “SEC”). Each Fund will purchase securities (or issuers of such securities) that are Eligible Securities that present minimal credit risk as determined by BlackRock pursuant to guidelines approved by the Board. For a discussion of Eligible Securities, please see the Glossary.
Principal Investment Strategies
Each Fund’s principal investment strategies are described under the heading “Principal Investment Strategies of the Fund” in each Fund’s “Key Facts” section included in “Fund Overview.” The following is additional information concerning the investment strategies of the Funds.
TempCash, TempFund and MuniCash
Pursuant to Rule 2a-7 under the 1940 Act, each Fund will generally limit its purchases of any one issuer’s securities (other than U.S. Government obligations and repurchase agreements collateralized by such securities) to 5% of the Fund’s total assets, except that up to 25% of its total assets may be invested in securities of one issuer for a period of up to three business days; provided that a Fund may not invest in the securities of more than one issuer in accordance with the foregoing exception at any one time.
Additionally, a security purchased by each Fund (or the issuers of such securities) will be:
 
   
a security that has ratings at the time of purchase (or which are guaranteed or in some cases otherwise supported by credit supports with such ratings) in the highest rating category by at least two unaffiliated nationally recognized statistical rating organizations (“NRSROs”), or one NRSRO, if the security or guarantee was only rated by one NRSRO;
 
   
a security that is issued or guaranteed by a person with such ratings;
 
   
a security without such short-term ratings that has been determined to be of comparable quality by BlackRock;
 
   
a security issued by other open-end investment companies that invest in the type of obligations in which the Fund may invest; or
 
   
a security issued or guaranteed as to principal or interest by the U.S. Government or any of its agencies or instrumentalities.
 
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Appendix A to the Statement of Additional Information (the “SAI”) contains a description of the relevant rating symbols used by several NRSROs for various types of debt obligations.
During periods of unusual market conditions or during temporary defensive periods, each Fund may depart from its principal investment strategies. Each Fund may hold uninvested cash reserves pending investment, during temporary defensive periods, or if, in the opinion of BlackRock, suitable tax-exempt obligations are unavailable. Uninvested cash reserves may not earn income.
Principal Investments
The section below describes the particular types of securities in which a Fund principally invests. Each Fund may, from time to time, make other types of investments and pursue other investment strategies in support of its overall investment goal. These supplemental investment strategies are described in the SAI. The SAI also describes the Funds’ policies and procedures concerning the disclosure of portfolio holdings.
Bank Obligations.  TempCash and TempFund.  Each Fund may purchase obligations of issuers in the banking industry, such as bank holding company obligations, bank commercial paper, certificates of deposit, bank notes and time deposits issued or supported by the credit of domestic banks or savings institutions and U.S. dollar-denominated instruments issued or supported by the credit of foreign banks or savings institutions having total assets at the time of purchase in excess of $1 billion. Each Fund may also make interest-bearing savings deposits in domestic commercial and savings banks. TempFund may also invest in obligations of foreign banks or foreign branches of U.S. banks where BlackRock deems the instrument to present minimal credit risk, while TempCash may invest substantially in such obligations.
Commercial Paper.  TempCash and TempFund.  Each Fund may invest in commercial paper, short-term notes and corporate bonds of domestic corporations that meet the Fund’s quality and maturity requirements, which are short-term securities with maturities of 1 to 397 days, issued by banks, corporations and others. In addition, commercial paper purchased by TempCash and TempFund may include instruments issued by foreign issuers, except that TempFund may only invest up to 5% of its assets in non-bank commercial paper issued by foreign issuers.
Funding Agreements.  TempCash and TempFund.  Each Fund may make investments in obligations, such as guaranteed investment contracts and similar funding agreements, issued by highly rated U.S. insurance companies. Funding agreement investments that do not provide for payment within seven days after notice are subject to the Fund’s policy regarding investments in illiquid securities.
Loan Participations.  TempCash and TempFund.  Each Fund may invest in loan participations. Loan participations are interests in loans which are administered by the lending bank or agent for a syndicate of lending banks, and sold by the lending bank or syndicate member.
Master Demand or Term Notes.  TempCash and TempFund.  Each Fund may invest in master demand or term notes payable in U.S. dollars and issued or guaranteed by U.S. and foreign corporations or other entities. A master demand or term note typically permits the investment of varying amounts by a Fund under an agreement between the Fund and an issuer. The principal amount of a master demand or term note may be increased from time to time by the parties (subject to specified maximums) or decreased by the issuer. In some instances, such notes may be supported by collateral. Collateral, if any, for a master demand or term note may include types of securities that a Fund could not hold directly.
Mortgage‑ and Asset-Backed Obligations.  TempCash and TempFund.  Each Fund may invest in debt securities that are backed by a pool of assets, usually loans such as mortgages, installment sale contracts, credit card receivables or other assets (“asset-backed securities”). TempCash may also invest in certain mortgage-related securities, such as bonds that are backed by cash flows from pools of mortgages and may have multiple classes with different payment rights and protections (“collateralized mortgage obligations” or “CMOs”) issued or guaranteed by U.S. Government agencies and instrumentalities or issued by private companies. Purchasable mortgage-related securities also include adjustable rate securities. TempCash currently intends to hold CMOs only as collateral for repurchase agreements.
Municipal Obligations.  MuniCash.  The Fund may purchase Municipal Obligations which are classified as “general obligation” securities or “revenue” securities. Revenue securities include private activity bonds which are not payable from the unrestricted revenues of the issuer. Consequently, the credit quality of private activity bonds is usually directly related to the credit standing of the corporate user of the facility involved. Interest paid on private activity bonds will be exempt from regular federal income tax. Other Municipal Obligations in which the Fund may invest include custodial receipts, tender option bonds and Rule 144A securities. The Fund may also invest in “moral obligation” bonds, which are bonds that are supported by the moral commitment, but not the legal obligation, of a state or community.
 
39

Repurchase Agreements.  TempCash, TempFund, FedFund and T-Fund.  Each Fund may enter into repurchase agreements. Repurchase agreements are similar in certain respects to collateralized loans, but are structured as a purchase of securities by a Fund, subject to the seller’s agreement to repurchase the securities at a mutually agreed upon date and price. Under a repurchase agreement, the seller is required to furnish collateral at least equal in value or market price to the amount of the seller’s repurchase obligation. Collateral for T-Fund repurchase agreements may include cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Treasury. Collateral for FedFund repurchase agreements may include cash and obligations issued by the U.S. Government or its agencies or instrumentalities. Collateral for TempCash and TempFund repurchase agreements may include cash, obligations issued by the U.S. Government or its agencies or instrumentalities, and obligations rated in the highest category by at least two nationally recognized statistical rating organizations (“NRSROs”), or, if unrated, determined to be of comparable quality by BlackRock pursuant to guidelines approved by the Board. For TempCash and TempFund, however, collateral is not limited to the foregoing and may include, for example, obligations rated in any category by NRSROs. Additionally, collateral for a repurchase agreement may include other types of securities that TempCash or TempFund could not hold directly without the repurchase obligation.
The Funds may transfer uninvested cash balances into a single joint account at the Funds’ custodian bank, the daily aggregate balance of which will be invested in one or more repurchase agreements.
Stand‑by Commitments.  MuniCash.  The Fund may acquire stand‑by commitments with respect to Municipal Obligations held in its portfolio. The Fund will acquire stand‑by commitments solely to facilitate portfolio liquidity and does not intend to exercise its rights thereunder for trading purposes.
U.S. Government Obligations.  TempCash, TempFund, FedFund, BlackRock Liquid Federal Trust Fund, T-Fund and MuniCash.  Each Fund may purchase obligations issued or guaranteed by the U.S. Government or its agencies, authorities, instrumentalities and sponsored enterprises, and related custodial receipts.
U.S. Treasury Obligations.  All Funds.  Each Fund may invest in direct obligations of the U.S. Treasury. Each Fund may also invest in Treasury receipts where the principal and interest components are traded separately under the Separate Trading of Registered Interest and Principal of Securities (“STRIPS”) program.
Variable and Floating Rate Instruments.  All Funds.  Each Fund may purchase variable or floating rate notes, which are instruments that provide for adjustments in the interest rate on certain reset dates or whenever a specified interest rate index changes, respectively.
When-Issued, Delayed Delivery and Forward Commitment Transactions.  All Funds.  Each Fund may transact in securities on a when-issued, delayed delivery or forward commitment basis. Each Fund expects that commitments to purchase securities on a when-issued, delayed delivery or forward commitment basis will not exceed 25% of the value of its total assets absent unusual market conditions. No Fund intends to purchase securities on a when-issued, delayed delivery or forward commitment basis for speculative purposes but only in furtherance of its investment objective. No Fund receives income from securities purchased on a when-issued, delayed delivery or forward commitment basis prior to delivery of such securities.
Other Investments
In addition to the principal investments described above, each Fund (except as noted below) may also invest or engage in the following investments/strategies:
Borrowing.  All Funds.  During periods of unusual market conditions, each Fund is authorized to borrow money from banks or other lenders on a temporary basis to the extent permitted by the 1940 Act, the rules and regulations thereunder and any applicable exemptive relief. The Funds will borrow money when BlackRock believes that the return from securities purchased with borrowed funds will be greater than the cost of the borrowing. Such borrowings may be secured or unsecured. No Fund will purchase portfolio securities while borrowings in excess of 5% of such Fund’s total assets are outstanding.
Illiquid Investments.  All Funds.  No Fund will invest more than 5% of the value of its respective total assets in illiquid securities that it cannot sell in the ordinary course within seven days at approximately current value.
Investment Company Securities.  TempCash, TempFund, BlackRock Liquid Federal Trust Fund, FedFund, T-Fund and MuniCash.  Each Fund may invest in securities issued by other open‑end or closed‑end investment companies, including affiliated investment companies, as permitted by the 1940 Act. A pro rata portion of the other investment companies’ expenses may be borne by the Fund’s shareholders. These investments may include, as consistent with a Fund’s investment objective and
 
40

policies, certain variable rate demand securities issued by closed‑end funds, which invest primarily in portfolios of taxable or tax‑exempt securities. With respect to MuniCash, it is anticipated that the payments made on variable rate demand securities issued by closed-end municipal bond funds will be exempt from federal income tax.
Municipal Obligations.  TempCash and TempFund.  Each Fund may, when deemed appropriate by BlackRock in light of its investment objective, invest in high quality, short-term Municipal Obligations issued by state and local governmental issuers which carry yields that are competitive with those of other types of money market instruments of comparable quality.
Restricted Securities.  TempCash, TempFund and MuniCash.  Restricted securities are securities that cannot be offered for public resale unless registered under the applicable securities laws or that have a contractual restriction that prohibits or limits their resale. They may include Rule 144A securities, which are privately placed securities that can be resold to qualified institutional buyers but not to the general public, and securities of U.S. and non-U.S. issuers that are offered pursuant to Regulation S under the Securities Act of 1933, as amended.
Reverse Repurchase Agreements.  TempCash, TempFund, FedFund and T‑Fund.  Each Fund may enter into reverse repurchase agreements. A Fund is permitted to invest up to one‑third of its total assets in reverse repurchase agreements. Investments in reverse repurchase agreements and securities lending transactions (described below) will be aggregated for purposes of this investment limitation.
Securities Lending.  TempCash, TempFund, FedFund and T‑Fund.  Each Fund may lend its securities with a value of up to one‑third of its total assets (including the value of the collateral for the loan) to qualified brokers, dealers, banks and other financial institutions for the purpose of realizing additional net investment income through the receipt of interest on the loan. Investments in reverse repurchase agreements (described above) and securities lending transactions will be aggregated for purposes of this investment limitation.
Investment Risks
 
The following paragraph is applicable to TempCash, TempFund and MuniCash:
Risk is inherent in all investing. You could lose money by investing in a Fund. Because the share price of a Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. A Fund may impose a fee upon the sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in a Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Funds’ sponsor has no legal obligation to provide financial support to a Fund, and you should not expect that the sponsor will provide financial support to a Fund at any time.
The following paragraph is applicable to BlackRock Liquid Federal Trust Fund, FedFund, T-Fund and Treasury Trust Fund:
Risk is inherent in all investing. You could lose money by investing in a Fund. Although each Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in a Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Funds’ sponsor has no legal obligation to provide financial support to a Fund, and you should not expect that the sponsor will provide financial support to a Fund at any time.
The following is a description of certain risks of investing in the Funds. The order of the below risk factors does not indicate the significance of any particular risk factor.
Principal Risks of Investing in the Funds
Credit Risk.  All Funds.  Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation.
Extension Risk.  TempCash and TempFund.  When interest rates rise, certain obligations will be paid off by the obligor more slowly than anticipated, causing the value of these securities to fall. Rising interest rates tend to extend the duration of securities, making them more sensitive to changes in interest rates. The value of longer-term securities generally changes more in response to changes in interest rates than shorter-term securities. As a result, in a period of rising interest rates, securities may exhibit additional volatility and may lose value.
 
41

Financial Services Industry Risk.  TempCash.  Because of its concentration in the financial services industry, the Fund will be more susceptible to any economic, business, political or other developments which generally affect this industry sector. As a result, the Fund will be exposed to a large extent to the risks associated with that industry, such as government regulation, the availability and cost of capital funds, consolidation and general economic conditions. Financial services companies are also exposed to losses if borrowers and other counterparties experience financial problems and/or cannot repay their obligations.
When interest rates go up, the value of securities issued by many types of financial services companies generally goes down. In many countries, financial services and the companies that provide them are regulated by governmental entities, which can increase costs for new services or products and make it difficult to pass increased costs on to consumers. In certain areas, deregulation of financial services companies has resulted in increased competition and reduced profitability for certain companies.
The profitability of many types of financial services companies may be adversely affected in certain market cycles, including periods of rising interest rates, which may restrict the availability and increase the cost of capital, and declining economic conditions, which may cause credit losses due to financial difficulties of borrowers. Because many types of financial services companies are vulnerable to these economic cycles, a large portion of the Fund’s investments may lose value during such periods.
Foreign Exposure Risk.  TempCash, TempFund and MuniCash.   Securities issued or supported by foreign entities, including foreign banks and corporations, may involve additional risks and considerations. Extensive public information about the foreign issuer may not be available, and unfavorable political, economic or governmental developments in the foreign country involved could affect the payment of principal and interest.
Income Risk.  All Funds.  The Fund’s yield will vary as the short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates.
Interest Rate Risk.  All Funds.  Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective.
Liquidity Fee and Redemption Gate Risk.  TempCash, TempFund and MuniCash.  The Board has discretion to impose a liquidity fee of up to 2% upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. Accordingly, you may not be able to sell your shares or your redemptions may be subject to a liquidity fee when you sell your shares at certain times.
Market Risk and Selection Risk.  All Funds.  Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time.
 
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Mortgage‑ and Asset-Backed Securities Risks.  TempCash and TempFund.  Mortgage-backed securities (residential and commercial) and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust. Although asset-backed and commercial mortgage-backed securities (“CMBS”) generally experience less prepayment than residential mortgage-backed securities, mortgage-backed and asset-backed securities, like traditional fixed-income securities, are subject to credit, interest rate, prepayment and extension risks.
Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain mortgage-backed securities. The Fund’s investments in asset-backed securities are subject to risks similar to those associated with mortgage-related securities, as well as additional risks associated with the nature of the assets and the servicing of those assets. These securities also are subject to the risk of default on the underlying mortgages or assets, particularly during periods of economic downturn. Certain CMBS are issued in several classes with different levels of yield and credit protection. The Fund’s investments in CMBS with several classes may be in the lower classes that have greater risks than the higher classes, including greater interest rate, credit and prepayment risks.
Mortgage-backed securities may be either pass-through securities or CMOs. Pass-through securities represent a right to receive principal and interest payments collected on a pool of mortgages, which are passed through to security holders. CMOs are created by dividing the principal and interest payments collected on a pool of mortgages into several revenue streams (“tranches”) with different priority rights to portions of the underlying mortgage payments. Certain CMO tranches may represent a right to receive interest only (“IOs”), principal only (“POs”) or an amount that remains after floating-rate tranches are paid (an “inverse floater”). These securities are frequently referred to as “mortgage derivatives” and may be extremely sensitive to changes in interest rates. Interest rates on inverse floaters, for example, vary inversely with a short-term floating rate (which may be reset periodically). Interest rates on inverse floaters will decrease when short-term rates increase, and will increase when short-term rates decrease. These securities have the effect of providing a degree of investment leverage. In response to changes in market interest rates or other market conditions, the value of an inverse floater may increase or decrease at a multiple of the increase or decrease in the value of the underlying securities. If the Fund invests in CMO tranches (including CMO tranches issued by government agencies) and interest rates move in a manner not anticipated by Fund management, it is possible that the Fund could lose all or substantially all of its investment. Certain mortgage-backed securities in which the Fund may invest may also provide a degree of investment leverage, which could cause the Fund to lose all or substantially all of its investment.
The mortgage market in the United States has experienced difficulties that may adversely affect the performance and market value of certain of the Fund’s mortgage-related investments. Delinquencies and losses on mortgage loans (including subprime and second-lien mortgage loans) generally have increased and may continue to increase, and a decline in or flattening of real estate values (as has been experienced and may continue to be experienced in many housing markets) may exacerbate such delinquencies and losses. Also, a number of mortgage loan originators have experienced serious financial difficulties or bankruptcy. Reduced investor demand for mortgage loans and mortgage-related securities and increased investor yield requirements have caused limited liquidity in the secondary market for mortgage-related securities, which can adversely affect the market value of mortgage-related securities. It is possible that such limited liquidity in such secondary markets could continue or worsen.
Asset-backed securities entail certain risks not presented by mortgage-backed securities, including the risk that in certain states it may be difficult to perfect the liens securing the collateral backing certain asset-backed securities. In addition, certain asset-backed securities are based on loans that are unsecured, which means that there is no collateral to seize if the underlying borrower defaults.
Municipal Securities Concentration Risk.   MuniCash.  From time to time the Fund may invest a substantial amount of its assets in municipal securities whose interest is paid solely from revenues of similar projects. If the Fund concentrates its investments in this manner, it assumes the legal and economic risks relating to such projects and this may have a significant impact on the Fund’s investment performance.
Municipal Securities Risks.   MuniCash.  Municipal securities risks include the ability of the issuer to repay the obligation, the relative lack of information about certain issuers of municipal securities, and the possibility of future legislative changes which could affect the market for and value of municipal securities. These risks include:
General Obligation Bonds Risks — The full faith, credit and taxing power of the municipality that issues a general obligation bond secures payment of interest and repayment of principal. Timely payments depend on the issuer’s credit quality, ability to raise tax revenues and ability to maintain an adequate tax base.
Revenue Bonds Risks — Payments of interest and principal on revenue bonds are made only from the revenues generated by a particular facility, class of facilities or the proceeds of a special tax or other revenue source. These payments depend on the money earned by the particular facility or class of facilities, or the amount of revenues derived from another source.
 
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Private Activity Bonds Risks — Municipalities and other public authorities issue private activity bonds to finance development of industrial facilities for use by a private enterprise. The private enterprise pays the principal and interest on the bond, and the issuer does not pledge its full faith, credit and taxing power for repayment. If the private enterprise defaults on its payments, the Fund may not receive any income or get its money back from the investment.
Moral Obligation Bonds Risks — Moral obligation bonds are generally issued by special purpose public authorities of a state or municipality. If the issuer is unable to meet its obligations, repayment of these bonds becomes a moral commitment, but not a legal obligation, of the state or municipality.
Municipal Notes Risks — Municipal notes are shorter term municipal debt obligations. They may provide interim financing in anticipation of, and are secured by, tax collection, bond sales or revenue receipts. If there is a shortfall in the anticipated proceeds, the notes may not be fully repaid and the Fund may lose money.
Municipal Lease Obligations Risks — In a municipal lease obligation, the issuer agrees to make payments when due on the lease obligation. The issuer will generally appropriate municipal funds for that purpose, but is not obligated to do so. Although the issuer does not pledge its unlimited taxing power for payment of the lease obligation, the lease obligation is secured by the leased property. However, if the issuer does not fulfill its payment obligation it may be difficult to sell the property and the proceeds of a sale may not cover the Fund’s loss.
Tax‑Exempt Status Risk — In making investments, the Fund and its investment manager will rely on the opinion of issuers’ bond counsel and, in the case of derivative securities, sponsors’ counsel, on the tax‑exempt status of interest on municipal obligations and payments under tax‑exempt derivative securities. Neither the Fund nor its investment manager will independently review the bases for those tax opinions. If any of those tax opinions are ultimately determined to be incorrect or if events occur after the security is acquired that impact the security’s tax‑exempt status, the Fund and its shareholders could be subject to substantial tax liabilities. The Internal Revenue Service (the “IRS”) has generally not ruled on the taxability of the securities. An assertion by the IRS that a portfolio security is not exempt from U.S. federal income tax (contrary to indications from the issuer) could affect the Fund’s and its shareholders’ income tax liability for the current or past years and could create liability for information reporting penalties. In addition, an IRS assertion of taxability may impair the liquidity and the fair market value of the securities.
Prepayment Risk.  TempCash and TempFund.  When interest rates fall, certain obligations will be paid off by the obligor more quickly than originally anticipated, and the Fund may have to invest the proceeds in securities with lower yields. In periods of falling interest rates, the rate of prepayments tends to increase (as does price fluctuation) as borrowers are motivated to pay off debt and refinance at new lower rates. During such periods, reinvestment of the prepayment proceeds by the management team will generally be at lower rates of return than the return on the assets that were prepaid. Prepayment reduces the yield to maturity and the average life of the security.
Repurchase Agreements Risk.  TempCash, TempFund, FedFund and T‑Fund.  If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money.
Risk of Investing in the United States.  All Funds. A decrease in imports or exports, changes in trade regulations, inflation and/or an economic recession in the United States may have a material adverse effect on the U.S. economy and the securities listed on U.S. exchanges. Proposed and adopted policy and legislative changes in the United States are changing many aspects of financial, commercial, public health, environmental, and other regulation and may have a significant effect on U.S. markets generally, as well as on the value of certain securities. Governmental agencies project that the United States will continue to maintain elevated public debt levels for the foreseeable future. Although elevated debt levels do not necessarily indicate or cause economic problems, elevated public debt service costs may constrain future economic growth.
The United States has developed increasingly strained relations with a number of foreign countries. If relations with certain countries deteriorate, it could adversely affect U.S. issuers as well as non-U.S. issuers that rely on the United States for trade. The United States has also experienced increased internal unrest and discord, as well as significant challenges in managing and containing the outbreak of COVID-19. If these trends were to continue, it may have an adverse impact on the U.S. economy and the issuers in which the Fund invests.
Stable Net Asset Value Risk.  BlackRock Liquid Federal Trust Fund, FedFund, T-Fund and Treasury Trust Fund.  The Fund may not be able to maintain a stable NAV of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity.
 
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Taxability Risk.  MuniCash.  The Fund intends to minimize the payment of taxable income to shareholders by investing in tax-exempt or municipal securities in reliance at the time of purchase on an opinion of bond counsel to the issuer of the obligation that the interest paid on those securities will be excludable from gross income for federal income tax purposes and taxable income for state and local personal income tax purposes. Such securities, however, may be determined to pay, or have paid, taxable income subsequent to the Fund’s acquisition of the securities. In that event, the treatment of dividends previously paid or to be paid by the Fund as “exempt-interest dividends” could be adversely affected, subjecting the Fund’s shareholders to increased federal income tax liabilities. If the interest paid on any tax-exempt or municipal security held by the Fund is subsequently determined to be taxable, the Fund will dispose of that security as soon as reasonably practicable. In addition, future laws, regulations, rulings or court decisions may cause interest on municipal securities to be subject, directly or indirectly, to federal income taxation or exempt interest on state municipal securities to be subject to state or local income taxation, or the value of state municipal securities that are currently exempt to be subject to state or local intangible personal property tax, or may otherwise prevent the Fund from realizing the full current benefit of the tax-exempt status of such securities. Any such change could also affect the market price of such securities, and thus the value of an investment in the Fund.
Trading Risk.  BlackRock Liquid Federal Trust Fund and Treasury Trust Fund.  In selling securities prior to maturity, the Fund may realize a price higher or lower than that paid to acquire such securities, depending upon whether interest rates have decreased or increased since their acquisition. In addition, shareholders in a state that imposes an income or franchise tax should determine through consultation with their own tax advisors whether the Fund’s interest income, when distributed by the Fund, will be considered by the state to have retained exempt status, and whether the Fund’s capital gain and other income, if any, when distributed, will be subject to the state’s income or franchise tax.
Treasury Obligations Risk.  All Funds.  Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund.
U.S. Government Obligations Risk.  TempCash, TempFund, FedFund, BlackRock Liquid Federal Trust Fund, T-Fund and MuniCash.  Not all U.S. Government securities are backed by the full faith and credit of the United States. Obligations of certain agencies, authorities, instrumentalities and sponsored enterprises of the U.S. Government are backed by the full faith and credit of the United States (e.g., the Government National Mortgage Association); other obligations are backed by the right of the issuer to borrow from the U.S. Treasury (e.g., the Federal Home Loan Banks) and others are supported by the discretionary authority of the U.S. Government to purchase an agency’s obligations. Still others are backed only by the credit of the agency, authority, instrumentality or sponsored enterprise issuing the obligation. No assurance can be given that the U.S. Government would provide financial support to any of these entities if it is not obligated to do so by law.
Variable and Floating Rate Instrument Risk.  All Funds.  Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. Certain of these securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time.
When-Issued and Delayed Delivery Securities and Forward Commitments Risk.  All Funds.  When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price.
Other Risks of Investing in the Funds
Each Fund (except as noted below) may also be subject to certain other non-principal risks associated with its investments and investment strategies, including:
Borrowing Risk.  All Funds.  Borrowing may exaggerate changes in the NAV of Fund shares and in the return on the Fund’s portfolio. Borrowing will cost the Fund interest expense and other fees. The costs of borrowing may reduce the Fund’s return. Borrowing may cause the Fund to liquidate positions when it may not be advantageous to do so to satisfy its obligations.
Cyber Security Risk.  All Funds.  Failures or breaches of the electronic systems of the Fund, the Fund’s adviser, distributor, and other service providers, or the issuers of securities in which the Fund invests have the ability to cause disruptions and negatively impact the Fund’s business operations, potentially resulting in financial losses to the Fund and its shareholders. While the Fund has established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherent limitations in such plans and systems. Furthermore, the Fund cannot control the cyber security plans and systems of the Fund’s service providers or issuers of securities in which the Fund invests.
 
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Expense Risk.  All Funds.  Fund expenses are subject to a variety of factors, including fluctuations in the Fund’s net assets. Accordingly, actual expenses may be greater or less than those indicated. For example, to the extent that the Fund’s net assets decrease due to market declines or redemptions, the Fund’s expenses will increase as a percentage of Fund net assets. During periods of high market volatility, these increases in the Fund’s expense ratio could be significant.
Illiquid Investments Risk.  All Funds.  The Fund’s illiquid investments may reduce the returns of the Fund because it may be difficult to sell the illiquid investments at an advantageous time or price. The Fund may be unable to pay redemption proceeds within the time period stated in this prospectus because of unusual market conditions, an unusually high volume of redemption requests, or other reasons.
Investment in Other Investment Companies Risk.  TempCash, TempFund, BlackRock Liquid Federal Trust Fund, FedFund, T‑Fund and MuniCash.  As with other investments, investments in other investment companies, including exchange-traded funds (“ETFs”), are subject to market and selection risk. In addition, if the Fund acquires shares of investment companies, including ones affiliated with the Fund, shareholders bear both their proportionate share of expenses in the Fund (including management and advisory fees) and, indirectly, the expenses of the investment companies (to the extent not offset by BlackRock through waivers). To the extent the Fund is held by an affiliated fund, the ability of the Fund itself to hold other investment companies may be limited.
Large Shareholder and Large-Scale Redemption Risk.  All Funds.  Certain shareholders, including a third-party investor, the Fund’s adviser or an affiliate of the Fund’s adviser, or another entity, may from time to time own or manage a substantial amount of Fund shares or may invest in the Fund and hold its investment for a limited period of time. There can be no assurance that any large shareholder or large group of shareholders would not redeem their investment or that the size of the Fund would be maintained. Redemptions of a large number of Fund shares by these shareholders may adversely affect the Fund’s liquidity and net assets. These redemptions may force the Fund to sell portfolio securities to meet redemption requests when it might not otherwise do so, which may negatively impact the Fund. In addition, large redemptions can result in the Fund’s current expenses being allocated over a smaller asset base, which generally could result in an increase in the Fund’s expense ratio.
Municipal Securities Risks. TempCash and TempFund. Municipal securities risks include the ability of the issuer to repay the obligation, the relative lack of information about certain issuers of municipal securities, and the possibility of future legislative changes which could affect the market for and value of municipal securities. These risks include:
General Obligation Bonds Risks — The full faith, credit and taxing power of the municipality that issues a general obligation bond secures payment of interest and repayment of principal. Timely payments depend on the issuer’s credit quality, ability to raise tax revenues and ability to maintain an adequate tax base.
Revenue Bonds Risks — Payments of interest and principal on revenue bonds are made only from the revenues generated by a particular facility, class of facilities or the proceeds of a special tax or other revenue source. These payments depend on the money earned by the particular facility or class of facilities, or the amount of revenues derived from another source.
Private Activity Bonds Risks — Municipalities and other public authorities issue private activity bonds to finance development of industrial facilities for use by a private enterprise. The private enterprise pays the principal and interest on the bond, and the issuer does not pledge its full faith, credit and taxing power for repayment. If the private enterprise defaults on its payments, the Fund may not receive any income or get its money back from the investment.
Moral Obligation Bonds Risks — Moral obligation bonds are generally issued by special purpose public authorities of a state or municipality. If the issuer is unable to meet its obligations, repayment of these bonds becomes a moral commitment, but not a legal obligation, of the state or municipality.
Municipal Notes Risks — Municipal notes are shorter term municipal debt obligations. They may provide interim financing in anticipation of, and are secured by, tax collection, bond sales or revenue receipts. If there is a shortfall in the anticipated proceeds, the notes may not be fully repaid and the Fund may lose money.
Municipal Lease Obligations Risks — In a municipal lease obligation, the issuer agrees to make payments when due on the lease obligation. The issuer will generally appropriate municipal funds for that purpose, but is not obligated to do so. Although the issuer does not pledge its unlimited taxing power for payment of the lease obligation, the lease obligation is secured by the leased property. However, if the issuer does not fulfill its payment obligation it may be difficult to sell the property and the proceeds of a sale may not cover the Fund’s loss.
 
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Tax-Exempt Status Risk — In making investments, the Fund and its investment manager will rely on the opinion of issuers’ bond counsel and, in the case of derivative securities, sponsors’ counsel, on the tax-exempt status of interest on municipal obligations and payments under tax-exempt derivative securities. Neither the Fund nor its investment manager will independently review the bases for those tax opinions. If any of those tax opinions are ultimately determined to be incorrect or if events occur after the security is acquired that impact the security’s tax-exempt status, the Fund and its shareholders could be subject to substantial tax liabilities. The IRS has generally not ruled on the taxability of the securities. An assertion by the IRS that a portfolio security is not exempt from U.S. federal income tax (contrary to indications from the issuer) could affect the Fund’s and its shareholders’ income tax liability for the current or past years and could create liability for information reporting penalties. In addition, an IRS assertion of taxability may impair the liquidity and the fair market value of the securities.
Restricted Securities Risk.  TempCash, TempFund and MuniCash.  Limitations on the resale of restricted securities may have an adverse effect on their marketability, and may prevent the Fund from disposing of them promptly at advantageous prices. Restricted securities may not be listed on an exchange and may have no active trading market. In order to sell such securities, the Fund may have to bear the expense of registering the securities for resale and the risk of substantial delays in effecting the registration. Other transaction costs may be higher for restricted securities than unrestricted securities. Restricted securities may be difficult to value because market quotations may not be readily available, and the securities may have significant volatility. Also, the Fund may get only limited information about the issuer of a given restricted security, and therefore may be less able to predict a loss. Certain restricted securities may involve a high degree of business and financial risk and may result in substantial losses to the Fund.
Reverse Repurchase Agreements Risk.  TempCash, TempFund, FedFund and T‑Fund.  Reverse repurchase agreements involve the sale of securities held by the Fund with an agreement to repurchase the securities at an agreed-upon price, date and interest payment. Reverse repurchase agreements involve the risk that the other party may fail to return the securities in a timely manner or at all. The Fund could lose money if it is unable to recover the securities and the value of the collateral held by the Fund, including the value of the investments made with cash collateral, is less than the value of the securities. These events could also trigger adverse tax consequences for the Fund. In addition, reverse repurchase agreements involve the risk that the interest income earned in the investment of the proceeds will be less than the interest expense.
Securities Lending Risk.  TempCash, TempFund, FedFund and T‑Fund.  Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, the Fund may lose money and there may be a delay in recovering the loaned securities. The Fund could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. These events could trigger adverse tax consequences for the Fund.
Valuation Risk.  TempCash, TempFund and MuniCash.  The price the Fund could receive upon the sale of any particular portfolio investment may differ from the Fund’s valuation of the investment. As a result, the price received upon the sale of an investment may be less than the value ascribed by the Fund, and the Fund could realize a greater than expected loss or lesser than expected gain upon the sale of the investment. Pricing services that value fixed-income securities generally utilize a range of market-based and security-specific inputs and assumptions, as well as considerations about general market conditions, to establish a price. Pricing services generally value fixed-income securities assuming orderly transactions of an institutional round lot size, but may be held or transactions may be conducted in such securities in smaller, odd lot sizes. Odd lots may trade at lower prices than institutional round lots. The Fund’s ability to value its investments may also be impacted by technological issues and/or errors by pricing services or other third-party service providers.
 
47

Account Information
 
Valuation of Fund Investments and Price of Fund Shares
 
The price you pay when you purchase or redeem a Fund’s shares is the NAV next determined after confirmation of your order. The Funds calculate the NAV as follows:
 
NAV  =   
(Value of Assets of a Share Class)
– (Liabilities of the Share Class)
 
  
Number of Outstanding Shares
of the Share Class
Each Fund’s NAV per share is calculated by JPMorgan Chase Bank, N.A. (“JPM”) on each day on which the New York Stock Exchange (“NYSE”) and the Federal Reserve Bank of Philadelphia are open for business (a “Business Day”). Generally, trading in non-U.S. securities, U.S. Government securities, money market instruments and certain fixed-income securities is substantially completed each day at various times prior to the close of business on the NYSE. The values of such securities used in computing the NAV of a Fund’s shares are determined as of such times.
In computing the NAV, each Government Fund uses the amortized cost method of valuation as described in the SAI under “Additional Purchase and Redemption Information.”
The value of the securities and other assets and liabilities held by each Institutional Fund are determined pursuant to BlackRock’s valuation policies and procedures. BlackRock has been designated by the Board as the valuation designee for each Institutional Fund pursuant to Rule 2a-5 under the Investment Company Act.
Shares of underlying open-end funds (including money market funds) are valued by each Institutional Fund at net asset value. Shares of underlying exchange-traded closed-end funds or other ETFs are valued by each Institutional Fund at their most recent closing price.
Each Institutional Fund values fixed-income portfolio securities using last available bid prices or current market quotations provided by dealers or prices (including evaluated prices) supplied by the Institutional Fund’s approved independent third-party pricing services, each in accordance with BlackRock’s valuation policies and procedures. Pricing services may use matrix pricing or valuation models that utilize certain inputs and assumptions to derive values. Pricing services generally value fixed-income securities assuming orderly transactions of an institutional round lot size, but an Institutional Fund may hold or transact in such securities in smaller odd lot sizes. Odd lots may trade at lower prices than institutional round lots. An amortized cost method of valuation may be used with respect to debt obligations with 60 days or less remaining to maturity unless BlackRock determines in good faith that such method does not represent fair value.
When market quotations are not readily available or are believed by BlackRock to be unreliable, BlackRock will fair value an Institutional Fund’s investments in accordance with its policies and procedures. BlackRock may conclude that a market quotation is not readily available or is unreliable if a security or other asset or liability does not have a price source due to its lack of trading or other reasons, if a market quotation differs significantly from recent price quotations or otherwise no longer appears to reflect fair value, where the security or other asset or liability is thinly traded, when there is a significant event subsequent to the most recent market quotation, or if the trading market on which a security is listed is suspended or closed and no appropriate alternative trading market is available. A “significant event” is deemed to occur if BlackRock determines, in its reasonable business judgment prior to or at the time of pricing an Institutional Fund’s assets or liabilities, that the event is likely to cause a material change to the closing market price of one or more assets held by, or liabilities of, the Institutional Fund.
Fair value represents a good faith approximation of the value of an asset or liability. The fair value of an asset or liability held by an Institutional Fund is the amount the Institutional Fund might reasonably expect to receive from the current sale of that asset or the cost to extinguish that liability in an arm’s-length transaction. Valuing an Institutional Fund’s investments using fair value pricing will result in prices that may differ from current market valuations and that may not be the prices at which those investments could have been sold during the period in which the particular fair values were used.
The NAV of TempFund is determined on each Business Day as of 8:00 a.m. (Eastern time), 12:00 p.m. (Eastern time) and 3:00 p.m. (Eastern time).
 
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The NAV of BlackRock Liquid Federal Trust Fund and Treasury Trust Fund is determined on each Business Day as of the close of regular trading on the NYSE (normally 4:00 p.m. Eastern time).
The NAV of TempCash and MuniCash normally is determined on each Business Day as of 3:00 p.m. (Eastern time).
The NAV of FedFund and T-Fund normally is determined on each Business Day as of 6:00 p.m. (Eastern time).
The Funds reserve the right to advance the time for accepting purchase or redemption orders on any day when the NYSE, bond markets (as recommended by The Securities Industry and Financial Markets Association (“SIFMA”)) or the Federal Reserve Bank of Philadelphia closes early1, trading on the NYSE is restricted, an emergency arises or as otherwise permitted by the SEC. See “Purchase of Shares” and “Redemption of Shares” for further information. In addition, the Board may, for any Business Day, decide to change the time as of which a Fund’s NAV is calculated in response to new developments such as altered trading hours, or as otherwise permitted by the SEC.
In the event the NYSE does not open for business because of an emergency or other unanticipated event, the Funds may, but are not required to, open for purchase or redemption transactions if the Federal Reserve wire payment system is open. To learn whether a Fund is open for business during an emergency or an unanticipated NYSE closing, please call (800) 441-7450.
Purchase of Shares
 
Purchase orders for shares are accepted only on Business Days and must be transmitted to the Funds’ office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302-797-2350), through the Funds’ internet-based order entry program, or by such other electronic means as the Funds agree to in their sole discretion with you or your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock and its affiliates) (each, a “Financial Intermediary”). For the Institutional Funds, purchase orders must be placed in dollars.
Your purchase order must be received in proper form by the Funds or BNY Mellon Investment Servicing (US) Inc. (“BNY Mellon”), the Funds’ transfer agent, prior to the deadlines noted below to receive that NAV. However, a Fund (other than TempFund) may also honor a purchase order if the Fund can verify that the purchase order was submitted to a Financial Intermediary that is an authorized agent of the Fund before the applicable deadline.
Your Financial Intermediary may charge you a fee and may offer additional account services than those described in this prospectus. Additionally, your Financial Intermediary may have procedures for placing orders for Dollar Shares that differ from those of the Funds, such as different investment minimums or earlier trading deadlines. Please contact your Financial Intermediary directly for more information and details.
Please note that TempFund does not accept trades through the NSCC Fund/SERV or DCC&S trading platforms.
In order to invest, a completed account application form must be submitted to, and processed by, your Financial Intermediary or the Funds’ transfer agent and an account number assigned. You may be asked to provide information to verify your identity when opening an account.
Payment for Dollar Shares of a Fund may be made only in federal funds or other immediately available funds. You may be charged for any costs incurred by a Fund or its service providers, including any costs incurred to recompute a Fund’s NAV, in connection with a purchase order that has been placed but for which the Fund has not received full payment by the close of the federal funds wire (normally 6:45 p.m. Eastern time) on the day the purchase order was placed. This payment deadline may be extended by one Business Day where a purchase order is processed through certain electronic platforms where same-day cash settlement is impracticable. The Funds will notify a shareholder or Financial Intermediary if its purchase order or payment was not received by an applicable deadline.
 
1 
SIFMA currently recommends an early close for the bond markets on the following dates: April 7, May 26, July 3, November 24, December 22 and December 29, 2023. The NYSE will close early on July 3 and November 24, 2023.
 
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Each Fund reserves the right to suspend or discontinue the offer and sale of its shares and reject or cancel any purchase order for any reason.
Each Fund will open for business and begin accepting purchase orders at 7:30 a.m. (Eastern time) on any Business Day. The chart below outlines the deadlines for receipt of purchase orders for the Funds’ Dollar Shares.
 
Fund      Deadline (Eastern time)
TempCash1
     3:00 p.m.
TempFund2
     8:00 a.m., 12:00 p.m. and 3:00 p.m.
BlackRock Liquid Federal Trust Fund3
     2:30 p.m.
FedFund4
     5:00 p.m.
T-Fund4
     5:00 p.m.
Treasury Trust Fund3
     2:30 p.m.
MuniCash3
     2:30 p.m.
 
1 
Purchase orders for Shares of TempCash placed after 2:55 p.m. Eastern time will not be transmitted by the Fund’s internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. The Fund also reserves the right to limit the amount of such orders or to reject an order for any reason.
2 
Purchase orders for Shares of TempFund transmitted by the Fund’s internet-based order entry program will not be accepted until the time they are received by the Fund. Due to potential time delays between the time an order is placed and the time it is received by the Fund, purchase orders for Shares of TempFund placed through the Fund’s internet-based order entry program after 7:55 a.m. and 11:55 a.m. Eastern time (but prior to the corresponding deadlines listed for TempFund in the chart above, respectively) may not be received by the Fund in time for an account holder to receive the NAV calculated in connection with each such deadline, respectively. Transmitted orders will receive the NAV next calculated after they are received by the Fund. Purchase orders for Shares of TempFund placed after 2:55 p.m. Eastern time (but prior to 3:00 p.m.) will not be transmitted by the Fund’s internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. The Fund also reserves the right to limit the amount of such orders or to reject an order for any reason.
3 
Purchase orders for Shares of BlackRock Liquid Federal Trust Fund, Treasury Trust Fund and MuniCash placed after 2:25 p.m. Eastern time will not be transmitted by the Funds’ internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. The Funds also reserve the right to limit the amount of such orders or to reject an order for any reason.
4 
Purchase orders for Shares of FedFund and T-Fund placed after 4:55 p.m. Eastern time will not be transmitted by the Funds’ internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. The Funds also reserve the right to limit the amount of such orders or to reject an order for any reason.
Orders received after the applicable deadline for any Fund (other than TempFund) on any Business Day (or, if the Fund closes early, at such closing time) will generally be executed on the next Business Day. Orders received for TempFund after 3:00 p.m. on any Business Day (or, if TempFund closes early, at such closing time) will be considered received at the open of the Fund’s next Business Day if a liquidity fee or redemption gate are not in place and will generally be executed at 8:00 a.m. on the next Business Day. See “Liquidity Fees and Redemption Gates” below for additional information.
Notwithstanding the foregoing, on any day that the principal bond markets close early (as recommended by SIFMA) or the Federal Reserve Bank of Philadelphia or the NYSE closes early, a Fund may advance the time on that day by which a purchase order must be placed so that it will be effected and begin to earn dividends that day. Typically, the deadline for purchases of BlackRock Liquid Federal Trust Fund and Treasury Trust Fund is advanced to 2:00 p.m. on days before and sometimes after holiday closings.
Contact the Funds’ office at (800) 441-7450 for specific information.
The minimum initial investment by an institution for Dollar Shares is $5,000 (however, Financial Intermediaries may set a higher minimum for their customers). There is no minimum subsequent investment. The Funds’ officers reserve the right to vary or waive the minimum and subsequent investment requirements.
Dollar Shares of the Funds are sold without a sales charge. Financial Intermediaries purchasing or holding Dollar Shares of the Funds for their customer accounts may charge customers fees for cash management and other services provided in connection
 
50

with their accounts. A customer should, therefore, consider the terms of its account with a Financial Intermediary before purchasing Dollar Shares of the Funds. A Financial Intermediary purchasing Dollar Shares of a Fund on behalf of its customers is responsible for transmitting orders to the Fund in accordance with its customer agreements.
Certain accounts may be eligible for an automatic investment or redemption privilege, commonly called a “sweep,” under which amounts necessary to decrease or increase the account balance to a predetermined dollar amount at the end of each day are invested in or redeemed from a selected Fund as of the end of the day. Each investor desiring to use this privilege should consult its bank for details.
Shares of the Funds are only registered for sale in the United States and certain of its territories. Consequently, the Funds generally do not accept investments from non-U.S. residents.
Redemption of Shares
 
Redemption orders must be transmitted to the Funds’ office in Wilmington, Delaware in the manner described under “Purchase of Shares.”
Each Fund will open for business and begin accepting redemption orders at 7:30 a.m. (Eastern time) on any Business Day. Redemption orders are accepted on Business Days in accordance with the deadlines outlined in the chart below. If redemption orders are received by BNY Mellon on a Business Day by the established deadlines, payment for redeemed Fund shares will typically be wired in federal funds on that same day. Redemption orders may be placed either in number of shares or in dollars for the Institutional Funds.
Orders received after the applicable deadline for any Fund (other than TempFund) on any Business Day (or, if the Fund closes early, at such closing time) will generally be executed on the next Business Day. Orders received for TempFund after 3:00 p.m. on any Business Day (or, if TempFund closes early, at such closing time) will be considered received at the open of the Fund’s next Business Day if a liquidity fee or redemption gate are not in place and will generally be executed at 8:00 a.m. on the next Business Day. See “Liquidity Fees and Redemption Gates” below for additional information.
If you purchased shares through a Financial Intermediary, that entity may have its own earlier deadlines for the receipt of the redemption order.
Where a redemption order is processed through certain electronic platforms where same-day cash settlement is impracticable, payment for redeemed shares will generally be delayed by one Business Day.
 
51

A Fund may suspend the right of redemption or postpone the date of payment under the conditions described under “Additional Purchase and Redemption Information” and “Liquidity Fees and Redemption Gates” below.
 
Fund      Deadline (Eastern time)
TempCash1
     3:00 p.m.
TempFund2
     8:00 a.m., 12:00 p.m. and 3:00 p.m.
BlackRock Liquid Federal Trust Fund3
     2:30 p.m.
FedFund4
     5:00 p.m.
T-Fund4
     5:00 p.m.
Treasury Trust Fund3
     2:30 p.m.
MuniCash5,6
     1:00 p.m.
1 
Redemption orders for Shares of TempCash placed after 2:55 p.m. Eastern time will not be transmitted by the Fund’s internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. Shareholders placing orders through a Financial Intermediary are responsible for making certain that their Financial Intermediary communicates the order to the Fund’s office no later than the stated deadline. The Fund reserves the right to limit the amount of such orders that will be paid on the same day.
2 
Redemption orders for Shares of TempFund transmitted by the Fund’s internet-based order entry program will not be accepted until the time they are received by the Fund. Due to potential time delays between the time an order is placed and the time it is received by the Fund, redemption orders for Shares of TempFund placed through the Fund’s internet-based order entry program after 7:55 a.m. and 11:55 a.m. Eastern time (but prior to the corresponding deadlines listed for TempFund in the chart above, respectively) may not be received by the Fund in time for an account holder to receive the NAV calculated in connection with each such deadline, respectively. Transmitted orders will receive the NAV next calculated after they are received by the Fund. Redemption orders for Shares of TempFund placed after 2:55 p.m. Eastern time (but prior to 3:00 p.m.) will not be transmitted by the Fund’s internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. Shareholders placing orders through a Financial Intermediary are responsible for making certain that their Financial Intermediary communicates the order to the Fund’s office no later than the stated deadline. The Fund reserves the right to limit the amount of such orders that will be paid on the same day.
3 
Redemption orders for Shares of BlackRock Liquid Federal Trust Fund and Treasury Trust Fund placed after 2:25 p.m. Eastern time will not be transmitted by the Fund’s internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. Shareholders placing orders through a Financial Intermediary are responsible for making certain that their Financial Intermediary communicates the order to the Fund’s office no later than the stated deadline. The Funds reserve the right to limit the amount of such orders that will be paid on the same day.
4 
Redemption orders for Shares of FedFund and T-Fund placed after 4:55 p.m. Eastern time will not be transmitted by the Funds’ internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. Shareholders placing orders through a Financial Intermediary are responsible for making certain that their Financial Intermediary communicates the order to the Funds’ office no later than the stated deadline. The Funds reserve the right to limit the amount of such orders that will be paid on the same day.
5 
Redemption orders for Shares of MuniCash placed after 12:55 p.m. Eastern time will not be transmitted by the Fund’s internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. Shareholders placing orders through a Financial Intermediary are responsible for making certain that their Financial Intermediary communicates the order to the Fund’s office no later than the stated deadline. The Fund reserves the right to limit the amount of such orders that will be paid on the same day.
6 
MuniCash reserves the right to limit the amount of redemption orders that will be paid on the same day for redemption orders received after 12:00 p.m. Eastern time.
Notwithstanding the foregoing, on any day that the principal bond markets close early (as recommended by SIFMA) or the Federal Reserve Bank of Philadelphia or the NYSE closes early, a Fund may advance the time on that day by which a redemption order must be placed so that it will be effected that day.
Typically, the deadline for redemption of BlackRock Liquid Federal Trust Fund and Treasury Trust Fund is advanced to 2:00 p.m. on days before and sometimes after holiday closings. Contact the Funds’ office at (800) 441-7450 for specific information.
The Funds shall have the right to redeem shares in any Dollar Share account if the value of the account is less than $5,000 (other than due to market fluctuations), after 60 days’ prior written notice to the shareholder. If during the 60‑day period the shareholder increases the value of its Dollar Share account to $5,000 or more, no such redemption shall take place. If a shareholder’s Dollar Share account falls below an average of $5,000 in any particular calendar month, the account may be charged a service fee with respect to that month (with the exception of TempFund). Any such redemption shall be effected at the NAV next determined after the redemption order is entered.
In addition, a Fund may redeem Dollar Shares involuntarily under certain special circumstances described in the SAI under “Additional Purchase and Redemption Information.” A Financial Intermediary redeeming shares of a Fund on behalf of its customers is responsible for transmitting orders to such Fund in accordance with its customer agreements.
 
52

Conflict of interest restrictions may apply to a Financial Intermediary’s receipt of compensation paid by the Funds in connection with the investment of fiduciary funds in Dollar Shares. (See also “Management of the Funds—Service Organizations” in the SAI.) Financial Intermediaries, including banks regulated by the Comptroller of the Currency and investment advisers and other money managers subject to the jurisdiction of the SEC, the Department of Labor or state securities commissions, are urged to consult their legal advisors before investing fiduciary funds in Dollar Shares.
Under normal and stressed market conditions, each Fund typically expects to meet redemption requests by using cash or cash equivalents in its portfolio or by selling portfolio assets to generate additional cash.
Additional Purchase and Redemption Information
 
Upon receipt of a proper redemption request submitted in a timely manner and otherwise in accordance with the redemption procedures set forth in this prospectus, the Funds will redeem the requested shares and make a payment to you in satisfaction thereof no later than the Business Day following the redemption request.
A Fund may postpone and/or suspend redemption and payment beyond one Business Day only as follows:
 
  a.
For any period during which there is a non-routine closure of the Federal Reserve wire system or applicable Federal Reserve Banks;
 
  b.
For any period (1) during which the NYSE is closed other than customary week-end and holiday closings or (2) during which trading on the NYSE is restricted;
 
  c.
For any period during which an emergency exists as a result of which (1) disposal of securities owned by the Fund is not reasonably practicable or (2) it is not reasonably practicable for the Fund to fairly determine the NAV of shares of the Fund;
 
  d.
For any period during which the SEC has, by rule or regulation, deemed that (1) trading shall be restricted or (2) an emergency exists;
 
  e.
For any period that the SEC may by order permit for your protection;
 
  f.
For any period during which the Fund, as part of a necessary liquidation of the Fund, has properly postponed and/or suspended redemption of shares and payment in accordance with federal securities laws (as discussed below); or
 
  g.
For any period during which an Institutional Fund, at the discretion of the Board, has temporarily suspended redemptions of shares due to a decline in the Institutional Fund’s weekly liquid assets pursuant to Rule 2a-7 (as discussed below).
If the Board, including a majority of the non-interested Trustees, determines either that (1) a Fund has invested, at the end of a business day, less than 10% of its total assets in weekly liquid assets, or (2) in the case of a Government Fund, such Government Fund’s calculated NAV per share has deviated from $1.00 or such deviation is likely to occur; then the Board, subject to certain conditions, may in the case of a Fund that the Board has determined to liquidate irrevocably, suspend redemptions and payment of redemption proceeds in order to facilitate the permanent liquidation of the Fund in an orderly manner. A Fund, prior to suspending redemptions, will notify the SEC of its decision to liquidate and suspend redemptions. If this were to occur, it would likely result in a delay in your receipt of your redemption proceeds.
Market timing is an investment technique involving frequent short-term trading of mutual fund shares designed to exploit market movements or inefficiencies in the way a mutual fund prices its shares. The Board has not adopted a market timing policy for BlackRock Liquid Federal Trust Fund, FedFund, T-Fund and Treasury Trust Fund because the Funds seek to maintain a stable NAV of $1.00 per share and generally the Funds’ shares are used by investors for short-term investment or cash management purposes. The Board has not adopted a market timing policy for TempCash, TempFund and MuniCash because the Funds’ shares are generally used by investors for short-term investment or cash management purposes. There can be no assurances, however, that the Funds may not, on occasion, serve as a temporary or short-term investment vehicle for those who seek to market time funds offered by other investment companies.
Under certain circumstances, if no activity occurs in an account within a time period specified by state law, a shareholder’s shares in the Fund may be transferred to that state.
 
53

Liquidity Fees and Redemption Gates
 
Under Rule 2a-7, the Board is permitted to impose a liquidity fee up to 2% on the value of shares redeemed or temporarily restrict redemptions from each Institutional Fund for up to 10 business days during a 90 day period, in the event that such Institutional Fund’s weekly liquid assets fall below the following thresholds:
 
 
30% weekly liquid assets—If the weekly liquid assets of an Institutional Fund fall below 30% of the Institutional Fund’s total assets, and the Board determines it is in the best interests of the Institutional Fund, the Board may impose at any time, and as early as the same day, a liquidity fee of up to 2% of the amount redeemed, or a redemption gate that temporarily suspends the right of redemption.
 
 
10% weekly liquid assets—If the weekly liquid assets of an Institutional Fund fall below 10% of the Institutional Fund’s total assets as of the end of a business day, the Board will impose, at the beginning of the next business day, a liquidity fee of 1% of the amount redeemed, unless the Board determines that imposing such a fee would not be in the best interests of the Institutional Fund or determines that a lower or higher fee (not to exceed 2%) would be in the best interests of the Institutional Fund.
Liquidity fees and redemption gates, if imposed, may be terminated at any time in the discretion of the Board. Liquidity fees and redemption gates will also automatically terminate at the beginning of the next business day once an Institutional Fund has invested 30% or more of its total assets in weekly liquid assets as of the end of a business day.
If the Board imposes a liquidity fee, the fee will be used to help boost the weekly liquid assets of an Institutional Fund. An Institutional Fund may not accept purchases during the period that a liquidity fee has been imposed.
If the Board imposes a redemption gate, an Institutional Fund will not accept purchase or redemption orders until the Institutional Fund has notified shareholders that the redemption gate has been lifted. Any purchase or redemption orders submitted while a redemption gate is in effect will be cancelled without further notice. If you still wish to purchase or redeem shares once the redemption gate has been lifted, you will need to submit a new purchase or redemption request to an Institutional Fund or your Financial Intermediary. If a purchase or redemption order is received after the applicable deadline of an Institutional Fund but prior to the imposition of a liquidity fee or a redemption gate, such order will be cancelled without further notice.
Under certain circumstances, an Institutional Fund may honor redemption orders (or pay redemptions without adding a liquidity fee to the redemption amount) if the Institutional Fund can verify that the redemption order was submitted to the Fund’s authorized agent before the Board imposed a liquidity fee or suspended redemptions.
The Board generally expects that a liquidity fee or redemption gate would be imposed, if at all, during periods of extraordinary market stress. The Board expects that a liquidity fee or redemption gate would typically be imposed only after the Institutional Fund has notified Financial Intermediaries and shareholders that a liquidity fee or redemption gate will be imposed (which may not be until the beginning of the next business day following the announcement that the Board has imposed the liquidity fee or redemption gate). However, the Board may, in its discretion, impose a liquidity fee or redemption gate at any time after the weekly liquid assets of an Institutional Fund fall below 30% of the Institutional Fund’s total assets.
Announcements regarding the imposition of a liquidity fee or redemption gate, or the termination of a liquidity fee or redemption gate, will be filed with the SEC on Form N-CR and will be available on the website of an Institutional Fund (www.blackrock.com/cash). In addition, the Institutional Funds will make such announcements through a supplement to their registration statements and may further communicate such actions through other means.
Financial Intermediaries will be required promptly to take such actions reasonably requested by an Institutional Fund or its agent to implement, modify or remove, or to assist the Institutional Fund in implementing, modifying or removing, a liquidity fee or redemption gate established by the Board.
Distribution and Shareholder Servicing Payments
 
Dollar Shareholder Services Plan
Financial Intermediaries may purchase Dollar Shares. Pursuant to a Shareholder Services Plan adopted by the Board, the Funds will enter into an agreement with each Financial Intermediary that purchases Dollar Shares. The agreement will require the Financial Intermediary to provide services to its customers who are the beneficial owners of such shares in consideration of the payment of up to 0.25% (on an annualized basis) of the average daily NAV of the Dollar Shares held by the Financial
 
54

Intermediary. Such services are described more fully in the SAI under “Management of the Funds—Service Organizations.” Under the terms of the agreements, Financial Intermediaries are required to provide to their customers a schedule of any fees that they may charge customers in connection with their investments in Dollar Shares.
The Funds also offer other share classes, which may have higher or lower levels of expenses depending on, among other things, the services provided to shareholders.
Other Payments by BlackRock
From time to time, BlackRock, the Funds’ distributor or their affiliates also may pay a portion of the fees for administrative, networking, recordkeeping, sub-transfer agency, sub-accounting and shareholder services at its or their own expense and out of its or their profits. BlackRock, the Funds’ distributor and their affiliates may also compensate affiliated and unaffiliated Financial Intermediaries for the sale and distribution of shares of the Funds. These payments would be in addition to the Fund payments described in this prospectus and may be a fixed dollar amount, may be based on the number of customer accounts maintained by the Financial Intermediary, may be based on a percentage of the value of shares sold to, or held by, customers of the Financial Intermediary or may be calculated on another basis. The aggregate amount of these payments by BlackRock, the Funds’ distributor and their affiliates may be substantial and, in some circumstances, may create an incentive for a Financial Intermediary, its employees or associated persons to recommend or sell shares of the Funds to you.
Please contact your Financial Intermediary for details about payments it may receive from the Funds or from BlackRock, the Funds’ distributor or their affiliates. For more information, see the SAI.
Dividends and Distributions
 
Each Fund declares dividends daily and distributes substantially all of its net investment income to shareholders monthly. Shares begin accruing dividends on the day the purchase order for the shares is effected and continue to accrue dividends through the day before such shares are redeemed. Unless they are reinvested, dividends are paid monthly generally by wire transfer within five Business Days after the end of the month or within five Business Days after a redemption of all of a shareholder’s shares of a particular class.
Shareholders may elect to have their dividends reinvested in additional full and fractional shares of the same class of shares with respect to which such dividends are declared. Reinvested dividends receive the same tax treatment as dividends paid in cash. Reinvested dividends are available for redemption on the following Business Day. Reinvestment elections, and any revocations thereof, must be made in writing to the Fund at 100 Bellevue Parkway, Wilmington, Delaware 19809 and will become effective after its receipt by the Fund with respect to dividends paid.
Federal Taxes
 
Distributions paid by TempCash, TempFund, BlackRock Liquid Federal Trust Fund, FedFund, T‑Fund and Treasury Trust Fund will generally be taxable to shareholders. Each of these Funds expects that all, or virtually all, of its distributions will consist of ordinary income that is not eligible for the reduced rates applicable to qualified dividend income. You will be subject to income tax on these distributions regardless of whether they are paid in cash or reinvested in additional shares. The one major exception to these tax principles is that distributions on shares held in an individual retirement account (“IRA”) (or other tax‑qualified plan) will not be currently taxable.
MuniCash anticipates that substantially all of its income dividends will be “exempt-interest dividends,” which are generally exempt from regular federal income taxes. Interest on indebtedness incurred by a shareholder to purchase or carry shares of this Fund generally will not be deductible for federal income tax purposes. Exempt-interest dividends will also be considered along with other adjusted gross income in determining whether any Social Security or railroad retirement payments received by you are subject to federal income taxes.
MuniCash generally will only purchase a tax‑exempt or municipal security if it is accompanied by an opinion of counsel to the issuer, which is delivered on the date of issuance of the security, that the interest paid on such security is excludable from gross income for relevant income tax purposes (i.e., “tax-exempt”). There is a possibility that events occurring after the date of issuance of a security, or after the Fund’s acquisition of a security, may result in a determination that the interest on that security is, in fact, includable in gross income for federal or state income tax purposes retroactively to its date of issue. Such a determination may cause a portion of prior distributions received by shareholders to be taxable to those shareholders in the year of receipt.
 
55

Investors that are generally exempt from U.S. tax on interest income, such as IRAs, other tax advantaged accounts, tax‑exempt entities and non‑U.S. persons, will not gain additional benefit from the tax‑exempt status of exempt-interest dividends paid by MuniCash. Because this Fund’s pre‑tax returns will tend to be lower than those of funds that own taxable debt instruments of comparable quality, shares of this Fund will normally not be suitable investments for those kinds of investors.
Distributions derived from taxable interest income or capital gains on portfolio securities, if any, will be subject to federal income taxes and will generally be subject to state and local income taxes. If you redeem shares of a Fund, you generally will be treated as having sold your shares and any gain on the transaction may be subject to tax.
Each Fund will be required in certain cases to withhold and remit to the United States Treasury a percentage of taxable ordinary income or capital gain dividends paid to any non‑corporate shareholder who (1) has failed to provide a correct tax identification number, (2) is subject to back‑up withholding by the IRS for failure to properly include on his or her return payments of taxable interest or dividends, or (3) has failed to certify to the Funds that he or she is not subject to back‑up withholding or that he or she is an “exempt recipient.” Backup withholding is not an additional tax. Any amount withheld generally may be allowed as a refund or a credit against a shareholder’s federal income tax liability provided the required information is timely provided to the IRS.
A 3.8% Medicare tax is imposed on the net investment income (which includes, but is not limited to, interest, dividends and net gain from investments) of U.S. individuals with income exceeding $200,000, or $250,000 if married filing jointly, and of trusts and estates. Net investment income does not include exempt-interest dividends received from a Fund.
The discussion above relates solely to U.S. federal income tax law as it applies to U.S. persons. Nonresident aliens, foreign corporations and other foreign investors in a Fund whose investment is not connected to a U.S. trade or business of the investor will generally be exempt from U.S. federal income tax on Fund distributions identified by the Fund as attributable to U.S.-source interest income and capital gains of a Fund. Tax may apply to such distributions, however, if the recipient’s investment in a Fund is connected to a trade or business of the recipient in the United States or if the recipient is present in the United States for 183 days or more in a year and certain other conditions are met.
Separately, a 30% withholding tax is currently imposed on U.S.-source dividends, interest and other income items paid to (i) certain foreign financial institutions and investment funds, and (ii) certain other foreign entities. To avoid withholding, foreign financial institutions and investment funds will generally either need to (a) collect and report to the IRS detailed information identifying their U.S. accounts and U.S. account holders, comply with due diligence procedures for identifying U.S. accounts and withhold tax on certain payments made to noncomplying foreign entities and account holders or (b) if an intergovernmental agreement is entered into and implementing legislation is adopted, comply with the agreement and legislation. Other foreign entities will generally either need to provide detailed information identifying each substantial U.S. owner or certify there are no such owners.
All foreign investors should consult their own tax advisors regarding the tax consequences in their country of residence of an investment in a Fund.
Because each of TempCash, TempFund and MuniCash offers and redeems its shares using a floating NAV, a redeeming shareholder may realize gains and losses because of differences between the NAV at which shares are acquired and the NAV at which shares are redeemed. Ordinarily, any gains and losses realized would have to be accounted for separately. In addition, because of the so-called “wash sale” rules, any loss realized by a shareholder on a redemption of Fund shares would ordinarily be disallowed to the extent such shareholder acquired new shares of the same Fund within 30 days before or after such a redemption.
The Treasury Department and IRS have determined not to apply the wash sale rules to the redemption of investment company shares if the investment company is regulated as, and holds itself out as, a money market fund under Rule 2a-7 of the 1940 Act and has a floating rate NAV at the time of redemption or has a fixed NAV and the shareholder has adopted the simplified, aggregate accounting method described in the following sentence. In addition, a shareholder in a money market fund (whether or not it has a floating NAV) may elect to adopt a simplified, aggregate accounting method under which gains and losses can be netted based on the shareholder’s taxable year rather than reported separately. Shareholders are urged to consult their tax advisors before deciding to adopt such accounting method.
If any of TempCash, TempFund and/or MuniCash imposes a liquidity fee on share redemptions because of a drop in the Fund’s weekly liquid assets below certain levels, the amount that would ordinarily be payable to a redeeming shareholder of the Fund will be reduced, consequently reducing the amount of gain, or increasing the amount of loss, that would otherwise be reportable for income tax purposes. The liquidity fee cannot be separately claimed as a deduction.
 
56

Any such liquidity fee will constitute an asset of the imposing Fund and will serve to benefit non-redeeming shareholders. However, the Funds do not intend to distribute such fees to non-redeeming shareholders. Such fees may, however, raise an Institutional Fund’s NAV, increasing the taxable income or reducing the deductible losses of shareholders that redeem their shares at a later time when such fees are not being charged. If a Fund receives liquidity fees, it will consider the appropriate tax treatment of such fees to the Fund at such time.
State and Local Taxes
 
Shareholders may also be subject to state and local taxes on distributions. State income taxes may not apply, however, to the portions of a Fund’s distributions, if any, that are attributable to interest on certain U.S. government securities and interest on securities of that state or localities within that state.
* * *
The Funds are generally required to report to each shareholder and to the IRS the amount of Fund distributions to that shareholder, including both taxable and exempt-interest dividends. This is not required, however, for distributions paid to certain types of shareholders that are “exempt recipients,” including foreign and domestic corporations, IRAs, tax-exempt organizations, and the U.S. federal and state governments and their agencies and instrumentalities. As a result, some shareholders may not receive Forms 1099-DIV or 1099-INT with respect to all distributions received from a Fund. BNY Mellon, as transfer agent, will send each Fund’s shareholders, or their authorized representatives, an annual statement reporting the amount, if any, of dividends and distributions made during each year and their federal tax treatment.
The foregoing is only a summary of certain tax considerations under current law, which may be subject to change in the future. You should consult your tax advisor for further information regarding federal, state, local and/or foreign tax consequences relevant to your specific situation. More information about taxes is included in the SAI.
 
57

Management of the Funds
 
BlackRock
 
BlackRock, each Fund’s investment manager, manages the Fund’s investments and its business operations subject to the oversight of the Board. While BlackRock is ultimately responsible for the management of the Funds, it is able to draw upon the trading, research and expertise of its asset management affiliates for portfolio decisions and management with respect to certain portfolio securities. BlackRock is an indirect, wholly-owned subsidiary of BlackRock, Inc.
BlackRock, a registered investment adviser, was organized in 1994 to perform advisory services for investment companies and has its principal offices at 100 Bellevue Parkway, Wilmington, Delaware 19809. BlackRock International Limited (the “Sub‑Adviser”), a registered investment adviser organized in 1995, is an affiliate of BlackRock and acts as sub-adviser for TempCash and TempFund. BlackRock and its affiliates had approximately $8.594 trillion in investment company and other portfolio assets under management as of December 31, 2022.
The Trust has entered into a management agreement (the “Management Agreement”) with BlackRock under which BlackRock provides certain investment advisory, administrative and accounting services to the Funds. Each of TempCash, TempFund and MuniCash pays BlackRock a management fee, computed daily and payable monthly, which is based on such Fund’s average daily net assets and calculated as follows:
 
Fund   
TempFund
  
TempCash and MuniCash
Management Fee
   .350% of the first $1 billion    .350% of the first $1 billion
   .300% of the next $1 billion    .300% of the next $1 billion
   .250% of the next $1 billion    .250% of the next $1 billion
   .200% of the next $1 billion    .200% of the next $1 billion
   .195% of the next $1 billion    .195% of the next $1 billion
   .190% of the next $1 billion    .190% of the next $1 billion
   .180% of the next $1 billion    .185% of the next $1 billion
   .175% of the next $1 billion    .180% of amounts in excess
   .170% of amounts in excess     of $8 billion.        of $7 billion.
The management fee for BlackRock Liquid Federal Trust Fund, FedFund, T‑Fund and Treasury Trust Fund is equal to Calculation A plus Calculation B as follows:
 
BlackRock Liquid Federal Trust Fund, FedFund, T‑Fund and Treasury Trust Fund
Calculation A
  
Calculation B
.175% of the first $1 billion*
   .175% of the first $1 billion**
.150% of the next $1 billion*
   .150% of the next $1 billion**
.125% of the next $1 billion*
   .125% of the next $1 billion**
.100% of the next $1 billion*
   .100% of amounts in excess of $3 billion.**
.095% of the next $1 billion*
  
.090% of the next $1 billion*
  
.085% of the next $1 billion*
  
.080% of amounts in excess of $7 billion.*
  
*
Based on the combined average net assets of BlackRock Liquid Federal Trust Fund, FedFund, T‑Fund and Treasury Trust Fund.
**
Based on the average net assets of the Fund whose management fee is being calculated.
Under the Management Agreement, BlackRock is authorized to engage sub‑contractors to provide any or all of the services provided for under the Management Agreement. BlackRock has engaged JPM to provide certain administrative services with respect to the Trust. Any fees payable to JPM do not affect the fees payable by the Funds to BlackRock.
BlackRock has agreed to cap each Fund’s combined management fees plus miscellaneous/other expenses (excluding: (i) interest, taxes, dividends tied to short sales, brokerage commissions, and other expenditures which are capitalized in accordance with generally accepted accounting principles; (ii) the Fund’s pro rata share of the fees and expenses incurred indirectly by the Fund as
 
58

a result of investing in other investment companies; (iii) other expenses attributable to, and incurred as a result of, the Fund’s investments; and (iv) extraordinary expenses (including litigation expenses) not incurred in the ordinary course of the Fund’s business, if any), of each share class of the Funds at the levels shown below and in a Fund’s fees and expenses table in the “Fund Overview” section of this prospectus. Items (i), (ii), (iii) and (iv) in the preceding sentence are referred to in this prospectus as “Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses.” To achieve these expense caps, BlackRock has agreed to waive or reimburse fees or expenses for Dollar Shares if these expenses exceed a certain limit as indicated in the table below.
 
Fund   
Contractual Caps1 on
Combined Management
Fees and Miscellaneous/Other
Expenses2 (excluding
certain Fund expenses)
TempCash
   0.18%
TempFund
   0.18%
BlackRock Liquid Federal Trust Fund
   0.17%
FedFund
   0.17%
T-Fund
   0.17%
Treasury Trust Fund
   0.17%
MuniCash
   0.20%
1 
The contractual caps are in effect through June 30, 2024. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non-interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
2 
As a percentage of average daily net assets.
BlackRock and BlackRock Investments, LLC, the Funds’ distributor, have voluntarily agreed to waive a portion of their respective fees and/or reimburse operating expenses to enable the Funds to maintain minimum levels of daily net investment income. BlackRock and BlackRock Investments, LLC may discontinue this waiver and/or reimbursement at any time without notice.
For the fiscal year ended October 31, 2022, the aggregate management fee rates, net of any applicable waivers, paid by the Funds to BlackRock, as a percentage of each Fund’s average daily net assets, were as follows:
 
Fund   
Management Fee Rates
(Net of Applicable Waivers)
TempCash
   0.16%
TempFund
   0.15%
BlackRock Liquid Federal Trust Fund
   0.11%
FedFund
   0.12%
T-Fund
   0.13%
Treasury Trust Fund
   0.13%
MuniCash
   0.14%
The services provided by BlackRock are described further in the SAI under “Management of the Funds.”
BlackRock has entered into a sub-advisory agreement with the Sub-Adviser, with respect to TempCash and TempFund, under which BlackRock pays the Sub-Adviser for services it provides for that portion of each Fund for which it acts as sub-adviser a fee equal to a percentage of the management fee paid to BlackRock under the Management Agreement.
A discussion regarding the basis for the Board’s approval of the Management Agreement is available in the Trust’s annual report to shareholders for the fiscal year ended October 31, 2022. A discussion of the basis for the Board’s approval of the sub-advisory agreement with the Sub-Adviser with respect to TempCash and TempFund is available in the Trust’s annual report to shareholders for the fiscal year ended October 31, 2022.
From time to time, a manager, analyst, or other employee of BlackRock or its affiliates may express views regarding a particular asset class, company, security, industry, or market sector. The views expressed by any such person are the views of only that
 
59

individual as of the time expressed and do not necessarily represent the views of BlackRock or any other person within the BlackRock organization. Any such views are subject to change at any time based upon market or other conditions and BlackRock disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for the Funds are based on numerous factors, may not be relied on as an indication of trading intent on behalf of the Funds.
BlackRock, BlackRock Investments, LLC, the Funds’ distributor, and/or their affiliates may make payments for subaccounting, administrative and/or shareholder processing services that are in addition to any shareholder servicing and processing fees paid by the Funds.
BlackRock or its affiliates will use at least 5% of BlackRock’s net revenue from its management fee from BlackRock Liquid Federal Trust Fund to further educational initiatives. BlackRock will make a contribution to an educational initiative at least annually, with BlackRock maintaining the option to increase, decrease or terminate this contribution in its sole discretion at any time.
Additionally, BlackRock may at its discretion enter into a license or other agreement (an “Agreement”) with one or more educational organizations from time to time. Pursuant to the relevant Agreement, the organization would grant BlackRock a license permitting BlackRock to use the organization’s name and logo. No organization will provide any investment advisory services to BlackRock or BlackRock Liquid Federal Trust Fund or participate in, or have any influence on, the day-to-day operations of, BlackRock Liquid Federal Trust Fund.
Conflicts of Interest
 
The investment activities of BlackRock and its affiliates (including BlackRock, Inc. and its subsidiaries (collectively, the “Affiliates”)), and their respective directors, officers or employees, in the management of, or their interest in, their own accounts and other accounts they manage, may present conflicts of interest that could disadvantage the Funds and their shareholders.
BlackRock and its Affiliates provide investment management services to other funds and discretionary managed accounts that may follow investment programs similar to that of the Funds. BlackRock and its Affiliates are involved worldwide with a broad spectrum of financial services and asset management activities and may engage in the ordinary course of business in activities in which their interests or the interests of their clients may conflict with those of the Funds. BlackRock or one or more Affiliates act or may act as an investor, research provider, investment manager, commodity pool operator, commodity trading advisor, financier, underwriter, adviser, trader, lender, index provider, agent and/or principal, and have other direct and indirect interests in securities, currencies, commodities, derivatives and other instruments in which the Funds may directly or indirectly invest. The Funds may invest in securities of, or engage in other transactions with, companies with which an Affiliate has significant debt or equity investments or other interests. The Funds may also invest in issuances (such as structured notes) by entities for which an Affiliate provides and is compensated for cash management services relating to the proceeds from the sale of such issuances. The Funds also may invest in securities of, or engage in other transactions with, companies for which an Affiliate provides or may in the future provide research coverage. An Affiliate may have business relationships with, and purchase, or distribute or sell services or products from or to, distributors, consultants or others who recommend the Funds or who engage in transactions with or for the Funds, and may receive compensation for such services. BlackRock or one or more Affiliates may engage in proprietary trading and advise accounts and funds that have investment objectives similar to those of the Funds and/or that engage in and compete for transactions in the same types of securities, currencies and other instruments as the Funds. This may include transactions in securities issued by other open‑end and closed‑end investment companies (which may include investment companies that are affiliated with the Funds and BlackRock, to the extent permitted under the 1940 Act). The trading activities of BlackRock and these Affiliates are carried out without reference to positions held directly or indirectly by the Funds and may result in BlackRock or an Affiliate having positions in certain securities that are senior or junior to, or have interests different from or adverse to, the securities that are owned by the Funds.
Neither BlackRock nor any Affiliate is under any obligation to share any investment opportunity, idea or strategy with the Funds. As a result, an Affiliate may compete with the Funds for appropriate investment opportunities. The results of a Fund’s investment activities, therefore, may differ from those of an Affiliate and of other accounts managed by BlackRock or an Affiliate, and it is possible that a Fund could sustain losses during periods in which one or more Affiliates and other accounts achieve profits on their trading for proprietary or other accounts. The opposite result is also possible.
In addition, the Funds may, from time to time, enter into transactions in which BlackRock or an Affiliate or their directors, officers or employees or other clients have an adverse interest.
 
60

Furthermore, transactions undertaken by clients advised or managed by BlackRock or its Affiliates may adversely impact the Funds. Transactions by one or more clients or BlackRock or its Affiliates or their directors, officers or employees, may have the effect of diluting or otherwise disadvantaging the values, prices or investment strategies of the Funds. The Funds’ activities may be limited because of regulatory restrictions applicable to BlackRock or one or more Affiliates and/or their internal policies designed to comply with such restrictions.
Under a securities lending program approved by the Board, the Trust, on behalf of each Fund, has retained BlackRock Investment Management, LLC, an Affiliate of BlackRock, to serve as the securities lending agent for the Funds to the extent that the Funds participate in the securities lending program. For these services, the securities lending agent will receive a fee from the Funds, including a fee based on the returns earned on the Funds’ investment of the cash received as collateral for the loaned securities. In addition, one or more Affiliates may be among the entities to which the Funds may lend their portfolio securities under the securities lending program.
The activities of BlackRock and its Affiliates and their respective directors, officers or employees, may give rise to other conflicts of interest that could disadvantage the Funds and their shareholders. BlackRock has adopted policies and procedures designed to address these potential conflicts of interest. See the SAI for further information.
Master/Feeder Structure
 
None of the Funds are currently organized in a master feeder structure but may in the future determine to convert to or reorganize as a feeder fund. A fund that invests all of its assets in a corresponding “master” fund may be known as a feeder fund. Investors in a feeder fund will acquire an indirect interest in the corresponding master fund. A master fund may accept investments from multiple feeder funds, and all the feeder funds of a given master fund bear the master fund’s expenses in proportion to their assets. This structure may enable the feeder funds to reduce costs through economies of scale. A larger investment portfolio may also reduce certain transaction costs to the extent that contributions to and redemptions from a master fund from different feeders may offset each other and produce a lower net cash flow. However, each feeder fund can set its own transaction minimums, fund-specific expenses, and other conditions. This means that one feeder fund could offer access to the same master fund on more attractive terms, or could experience better performance, than another feeder fund. In addition, large purchases or redemptions by one feeder fund could negatively affect the performance of other feeder funds that invest in the same master fund. Whenever a master fund holds a vote of its feeder funds, a fund that is a feeder fund investing in that master fund will pass the vote through to its own shareholders. Smaller feeder funds may be harmed by the actions of larger feeder funds. For example, a larger feeder fund could have more voting power than a smaller feeder fund over the operations of its master fund.
 
61

Financial Highlights
 
Financial Performance of the Funds
 
The Financial Highlights tables are intended to help you understand the financial performance of the Dollar Shares of each Fund for the periods shown. Certain information reflects financial results for a single Fund share. The total returns in the table represent the rate that an investor would have earned or lost on an investment in the indicated Fund (assuming reinvestment of all dividends and/or distributions). The information has been audited by Deloitte & Touche LLP, whose report, along with each Fund’s financial statements, is included in the Trust’s Annual Report, which is available upon request.
TempCash
The table below sets forth selected financial data for a Dollar Share of TempCash outstanding throughout each period presented.
 
     Dollar  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.0006     $ 1.0009     $ 1.0006     $ 1.0003     $ 1.0002  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0084       (0.0000 )(a)      0.0062       0.1405 (b)      0.0122  
Net realized and unrealized gain (loss)
     (0.0006     (0.0001     0.0004       0.0156       0.0031  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase (decrease) from investment operations
     0.0078       (0.0001     0.0066       0.1561       0.0153  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(c)
            
From net investment income
     (0.0084     (0.0002     (0.0063     (0.1558     (0.0152
From net realized gain
                 (0.0000 )(a)      (0.0000 )(a)       
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0084     (0.0002     (0.0063     (0.1558     (0.0152
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.0000     $ 1.0006     $ 1.0009     $ 1.0006     $ 1.0003  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(d)
            
Based on net asset value
     0.78     (0.01 )%      0.66     15.90 %(b)      1.54
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     0.51     0.50     0.47     0.51     0.61
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.33     0.20     0.40     0.43     0.43
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.84     (0.00 )%(e)      0.62     14.04 %(b)      1.22
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 18     $ 18     $ 18     $ 18     $ 15  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
Amount is greater than $(0.00005) per share.
(b) 
Includes a non‑recurring income payment, which impacted net investment income per share, total return and the net investment income ratio. Excluding this one time payment, the net investment income per share, the total return and the net investment income ratio were $0.0211, 2.15% and 2.10%, respectively.
(c)
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(d) 
Where applicable, assumes the reinvestment of distributions.
(e)
Amount is greater than (0.005)%.
 
62

TempFund
The table below sets forth selected financial data for a Dollar Share of TempFund outstanding throughout each period presented.
 
     Dollar  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.0005     $ 1.0008     $ 1.0006     $ 1.0004     $ 1.0004  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0083       0.0002       0.0056       0.0221       0.0151  
Net realized and unrealized gain (loss)
     (0.0005     (0.0002     0.0009       0.0001       0.0002  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0078       0.0000       0.0065       0.0222       0.0153  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(a)
            
From net investment income
     (0.0083     (0.0003     (0.0062     (0.0220     (0.0153
From net realized gain
                 (0.0001     (0.0000 )(b)       
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0083     (0.0003     (0.0063     (0.0220     (0.0153
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.0000     $ 1.0005     $ 1.0008     $ 1.0006     $ 1.0004  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(c)
            
Based on net asset value
     0.78     0.00 %(d)       0.65 %(e)       2.24     1.54
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     0.50     0.48     0.48     0.47     0.47
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.33     0.18     0.38     0.43     0.43
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.83     0.02     0.56     2.21     1.51
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 100,333     $ 107,298     $ 106,802     $ 79,837     $ 80,471  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(b) 
Amount is greater than $(0.00005) per share.
(c) 
Where applicable, assumes the reinvestment of distributions.
(d) 
Amount is less than 0.005%.
(e) 
Includes payment from an affiliate, which had no impact on the Fund’s total return.
 
63

BlackRock Liquid Federal Trust Fund
The table below sets forth selected financial data for a Dollar Share of BlackRock Liquid Federal Trust Fund outstanding throughout each period presented.
 
     Dollar  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0084       0.0000 (a)      0.0032       0.0189       0.0116  
Net realized and unrealized gain (loss)
     (0.0015     0.0001       0.0018       0.0000 (a)      0.0009  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0069       0.0001       0.0050       0.0189       0.0125  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(b)
            
From net investment income
     (0.0069     (0.0000 )(c)      (0.0049     (0.0189     (0.0125
From net realized gain
     (0.0000 )(c)      (0.0001     (0.0001     (0.0000 )(c)       
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0069     (0.0001     (0.0050     (0.0189     (0.0125
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(d)
            
Based on net asset value
     0.70     0.02     0.49     1.91     1.26
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     0.47     0.48     0.48     0.50     0.49
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.29     0.09     0.29     0.42     0.42
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.84     0.00 %(e)       0.32     1.90     1.16
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 15,765     $ 10,977     $ 30,848     $ 11,152     $ 13,751  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
Amount is less than $0.00005 per share.
(b) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(c) 
Amount is greater than $(0.00005) per share.
(d) 
Where applicable, assumes the reinvestment of distributions.
(e) 
Amount is less than 0.005%.
 
64

FedFund
The table below sets forth selected financial data for a Dollar Share of FedFund outstanding throughout each period presented.
 
     Dollar  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0080       0.0002       0.0039       0.0195       0.0129  
Net realized and unrealized gain (loss)
     (0.0005     0.0001       0.0009       0.0000 (a)       (0.0001
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0075       0.0003       0.0048       0.0195       0.0128  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(b)
            
From net investment income
     (0.0075     (0.0002     (0.0047     (0.0195     (0.0128
From net realized gain
     (0.0000 )(c)       (0.0001     (0.0001            
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0075     (0.0003     (0.0048     (0.0195     (0.0128
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(d)
            
Based on net asset value
     0.75     0.03     0.48     1.97     1.29
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     0.44     0.44     0.44     0.44     0.44
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.29     0.08     0.31     0.42     0.42
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.80     0.02     0.39     1.95     1.29
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 3,653,256     $ 2,863,692     $ 2,991,892     $ 2,307,110     $ 1,776,032  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
Amount is less than $0.00005 per share.
(b) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(c) 
Amount is greater than $(0.00005) per share.
(d) 
Where applicable, assumes the reinvestment of distributions.
 
65

T‑Fund
The table below sets forth selected financial data for a Dollar Share of T‑Fund outstanding throughout each period presented.
 
     Dollar  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0071       0.0001       0.0044       0.0191       0.0123  
Net realized gain
     0.0003 (a)       0.0001       0.0003       0.0000 (b)       0.0004  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0074       0.0002       0.0047       0.0191       0.0127  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(c)
            
From net investment income
     (0.0074     (0.0001     (0.0046     (0.0191     (0.0127
From net realized gain
     (0.0000 )(d)       (0.0001     (0.0001     (0.0000 )(d)      (0.0000 )(d)  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0074     (0.0002     (0.0047     (0.0191     (0.0127
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(e)
            
Based on net asset value
     0.75     0.01     0.46 %(f)       1.93     1.28
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     0.44     0.44     0.44     0.44     0.44
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.29     0.08     0.32     0.42     0.42
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.71     0.01     0.44     1.92     1.23
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 1,258,974     $ 1,000,401     $ 670,205     $ 794,485     $ 1,230,374  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
The amounts reported for a share outstanding may not accord with the change in aggregate gains and losses in securities for the fiscal period due to the timing of capital share transactions in relation to the fluctuating market values of the Fund’s underlying securities.
(b) 
Amount is less than $0.00005 per share.
(c) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(d) 
Amount is greater than $(0.00005) per share.
(e) 
Where applicable, assumes the reinvestment of distributions.
(f) 
Includes payment from an affiliate, which had no impact on the Fund’s total return.
 
66

Treasury Trust Fund
The table below sets forth selected financial data for a Dollar Share of Treasury Trust Fund outstanding throughout each period presented.
 
     Dollar  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0073       0.0001       0.0046       0.0194       0.0127  
Net realized gain (loss)
     (0.0003 )(a)       0.0001       0.0003       0.0002       (0.0001
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0070       0.0002       0.0049       0.0196       0.0126  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(b)
            
From net investment income
     (0.0070     (0.0001     (0.0048     (0.0196     (0.0126
From net realized gain
     (0.0000 )(c)       (0.0001     (0.0001           (0.0000 )(c) 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0070     (0.0002     (0.0049     (0.0196     (0.0126
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(d)
            
Based on net asset value
     0.70     0.01     0.49     1.98     1.27
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     0.44     0.44     0.44     0.44     0.45
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.27     0.07     0.30     0.40     0.42
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.73     0.01     0.46     1.94     1.27
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 1,060,804     $ 1,035,846     $ 939,241     $ 977,335     $ 482,014  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
The amounts reported for a share outstanding may not accord with the change in aggregate gains and losses in securities for the fiscal period due to the timing of capital share transactions in relation to the fluctuating market values of the Fund’s underlying securities.
(b) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(c) 
Amount is greater than $(0.00005) per share.
(d) 
Where applicable, assumes the reinvestment of distributions.
 
67

MuniCash
The table below sets forth selected financial data for a Dollar Share of MuniCash outstanding throughout each period presented.
 
     Dollar  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.0001     $ 1.0001     $ 1.0001     $ 1.0001     $ 1.0003  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0033       0.0001       0.0040       0.0123       0.0087  
Net realized and unrealized gain
     0.0007 (a)      0.0000 (b)      0.0002       0.0000 (b)      0.0000 (b) 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0040       0.0001       0.0042       0.0123       0.0087  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(c)
            
From net investment income
     (0.0042     (0.0001     (0.0042     (0.0123     (0.0087
From net realized gain
     (0.0000 )(d)                  (0.0000 )(d)      (0.0002
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0042     (0.0001     (0.0042     (0.0123     (0.0089
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 0.9999     $ 1.0001     $ 1.0001     $ 1.0001     $ 1.0001  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(e)
            
Based on net asset value
     0.40     0.01     0.42     1.23     0.88 %(f)  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     0.53     0.52     0.51     0.53     0.54
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.30     0.07     0.31     0.45     0.45
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.33     0.01     0.40     1.22     0.87
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 2,911     $ 4,810     $ 3,176     $ 2,207     $ 1,893  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a)
The amounts reported for a share outstanding may not accord with the change in aggregate gains and losses in securities for the fiscal period due to the timing of capital share transactions in relation to the fluctuating market values of the Fund’s underlying securities.
(b) 
Amount is less than $0.00005 per share.
(c) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(d) 
Amount is greater than $(0.00005) per share.
(e) 
Where applicable, assumes the reinvestment of distributions.
(f) 
Includes payment from an affiliate, which had no impact on the Fund’s total return.
 
68

General Information
 
Certain Fund Policies
 
Anti-Money Laundering Requirements
The Funds are subject to the USA PATRIOT Act (the “Patriot Act”). The Patriot Act is intended to prevent the use of the U.S. financial system in furtherance of money laundering, terrorism or other illicit activities. Pursuant to requirements under the Patriot Act, a Fund is required to obtain sufficient information from shareholders to enable it to form a reasonable belief that it knows the true identity of its shareholders. This information will be used to verify the identity of investors or, in some cases, the status of Financial Intermediaries. Such information may be verified using third-party sources. This information will be used only for compliance with the requirements of the Patriot Act or other applicable laws, regulations and rules in connection with money laundering, terrorism or economic sanctions.
The Funds reserve the right to reject purchase orders from persons who have not submitted information sufficient to allow a Fund to verify their identity. Each Fund also reserves the right to redeem any amounts in a Fund from persons whose identity it is unable to verify on a timely basis. It is the Funds’ policy to cooperate fully with appropriate regulators in any investigations conducted with respect to potential money laundering, terrorism or other illicit activities.
BlackRock Privacy Principles
BlackRock is committed to maintaining the privacy of its current and former fund investors and individual clients (collectively, “Clients”) and to safeguarding their non-public personal information. The following information is provided to help you understand what personal information BlackRock collects, how we protect that information and why in certain cases we share such information with select parties.
If you are located in a jurisdiction where specific laws, rules or regulations require BlackRock to provide you with additional or different privacy-related rights beyond what is set forth below, then BlackRock will comply with those specific laws, rules or regulations.
BlackRock obtains or verifies personal non-public information from and about you from different sources, including the following: (i) information we receive from you or, if applicable, your Financial Intermediary, on applications, forms or other documents; (ii) information about your transactions with us, our affiliates, or others; (iii) information we receive from a consumer reporting agency; and (iv) from visits to our websites.
BlackRock does not sell or disclose to non-affiliated third parties any non‑public personal information about its Clients, except as permitted by law or as is necessary to respond to regulatory requests or to service Client accounts. These non-affiliated third parties are required to protect the confidentiality and security of this information and to use it only for its intended purpose.
We may share information with our affiliates to service your account or to provide you with information about other BlackRock products or services that may be of interest to you. In addition, BlackRock restricts access to non-public personal information about its Clients to those BlackRock employees with a legitimate business need for the information. BlackRock maintains physical, electronic and procedural safeguards that are designed to protect the non-public personal information of its Clients, including procedures relating to the proper storage and disposal of such information.
 
69

Glossary
 
Glossary of Investment Terms
 
This glossary contains an explanation of some of the common terms used in this prospectus. For additional information about the Funds, please see the SAI.
Acquired Fund Fees and Expenses — the Fund’s pro rata share of the fees and expenses incurred indirectly by the Fund as a result of investing in other investment companies.
Annual Fund Operating Expenses — expenses that cover the costs of operating a Fund.
Daily Liquid Assets — include (i) cash; (ii) direct obligations of the U.S. Government; (iii) securities that will mature, as determined without reference to the maturity shortening provisions of Rule 2a-7 regarding interest rate readjustments, or are subject to a demand feature that is exercisable and payable within one business day; and (iv) amounts receivable and due unconditionally within one business day on pending sales of portfolio securities.
Distribution Fees — fees used to support a Fund’s marketing and distribution efforts, such as compensating financial professionals and other Financial Intermediaries, advertising and promotion.
Dollar-Weighted Average Life — the dollar-weighted average maturity of a Fund’s portfolio calculated without reference to the exceptions used for variable or floating rate securities regarding the use of the interest rate reset dates in lieu of the security’s actual maturity date. “Dollar-weighted” means the larger the dollar value of a debt security in the Fund, the more weight it gets in calculating this average.
Dollar-Weighted Average Maturity — the average maturity of a Fund is the average amount of time until the organizations that issued the debt securities in the Fund’s portfolio must pay off the principal amount of the debt. “Dollar-weighted” means the larger the dollar value of a debt security in the Fund, the more weight it gets in calculating this average. To calculate the dollar-weighted average maturity, the Fund may treat a variable or floating rate security as having a maturity equal to the time remaining to the security’s next interest rate reset date rather than the security’s actual maturity.
Eligible Securities — Applicable Eligible Securities include:
 
   
securities with a remaining maturity of 397 calendar days or less (with certain exceptions) that BlackRock determines present minimal credit risks to the fund after considering certain factors;
 
   
securities issued by other registered investment companies that are money market funds; or
 
   
securities issued or guaranteed as to principal or interest by the U.S. Government or any of its agencies or instrumentalities.
Management Fee — a fee paid to BlackRock for managing a Fund.
Other Expenses — include accounting, transfer agency, custody, professional and registration fees.
Shareholder Servicing Fees — fees used to compensate securities dealers and other Financial Intermediaries for certain shareholder servicing activities.
Weekly Liquid Assets — include (i) cash; (ii) direct obligations of the U.S. Government; (iii) U.S. Government securities issued by a person controlled or supervised by and acting as an instrumentality of the U.S. Government pursuant to authority granted by the U.S. Congress, that are issued at a discount to the principal amount to be repaid at maturity without provision for the payment of interest and have a remaining maturity of 60 days or less; (iv) securities that will mature, as determined without reference to the maturity shortening provisions of Rule 2a-7 regarding interest rate readjustments, or are subject to a demand feature that is exercisable and payable within five business days; and (v) amounts receivable and due unconditionally within five business days on pending sales of portfolio securities.
 
70

For More Information
 
Funds and Service Providers
 
 
FUNDS
BlackRock Liquidity Funds
TempCash
TempFund
BlackRock Liquid Federal Trust Fund
FedFund
T‑Fund
Treasury Trust Fund
MuniCash
100 Bellevue Parkway
Wilmington, Delaware 19809
(800) 441‑7450
MANAGER AND ADMINISTRATOR
BlackRock Advisors, LLC
100 Bellevue Parkway
Wilmington, Delaware 19809
SUB-ADVISER
To TempCash and TempFund:
BlackRock International Limited
Exchange Place One
1 Semple Street
Edinburgh, EH3 8BL
United Kingdom
TRANSFER AGENT
BNY Mellon Investment Servicing (US) Inc.
301 Bellevue Parkway
Wilmington, Delaware 19809
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
Deloitte & Touche LLP
200 Berkeley Street
Boston, Massachusetts 02116
ACCOUNTING SERVICES PROVIDER
JPMorgan Chase Bank, N.A.
383 Madison Avenue, Floor 11
New York, NY 10179
DISTRIBUTOR
BlackRock Investments, LLC
40 East 52nd Street
New York, New York 10022
CUSTODIANS
JPMorgan Chase Bank, N.A.
383 Madison Avenue, Floor 11
New York, NY 10179
The Bank of New York Mellon
240 Greenwich Street
New York, New York 10286
COUNSEL
Sidley Austin LLP
787 Seventh Avenue
New York, New York 10019-6018
 
71

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How to Contact BlackRock Liquidity Funds
 
By phone at (800) 441‑7450 or visit our website at www.blackrock.com/cash.
 
Dollar Shares    Fund Code
TempCash
   0023
TempFund
   0020
BlackRock Liquid Federal Trust Fund
   0102
FedFund
   0082
T‑Fund
   0031
Treasury Trust Fund
   0011
MuniCash
   0054
Written correspondence may be sent to:
BlackRock Liquidity Funds
100 Bellevue Parkway
Wilmington, Delaware 19809

Additional Information
 
 
The Statement of Additional Information (“SAI”) includes additional information about the Funds’ investment policies, organization and management. The SAI, as amended and/or supplemented from time to time, is incorporated by reference into this prospectus. The Annual and Semi-Annual Reports provide additional information about each Fund’s investments, performance and portfolio holdings.
Investors can get free copies of the above named documents, and make shareholder inquiries, by calling (800) 441‑7450. The above named documents and other information are available on the Funds’ website at www.blackrock.com/prospectus/cash.
Information about the Funds (including the SAI) is available on the EDGAR Database on the SEC’s website at http://www.sec.gov; copies of this information may be obtained, after paying a duplicating fee, by electronic request at the following e‑mail address: [email protected].
BlackRock Liquidity Funds 1940 Act File No. is 811‑2354.
 
LOGO    PRO-LIQ-DS-0223