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DWS Money Market Prime Series

Investment Objective

The fund seeks maximum current income to the extent consistent with stability of principal.

Fees and Expenses

These are the fees and expenses you may pay when you buy, hold and sell shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. More information about discounts and waivers is available from your financial representative and in Choosing a Share Class (p.15), Sales Charge Waivers and Discounts Available Through Intermediaries (Appendix B, p.34) and Purchase and Redemption of Shares in the fund’s Statement of Additional Information (SAI) (p. II-15).

SHAREHOLDER FEES (paid directly from your investment)

	A	C	S
Maximum deferred sales charge (load), as % of redemption proceeds	None	1.00	None
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	$20	$20	$20

ANNUAL FUND OPERATING EXPENSES
(expenses that you pay each year as a % of the value of your investment)

	A	C	S
Management fee	0.32	0.32	0.32
Distribution/service (12b-1) fees	0.25	1.00	None
Other expenses	0.27	0.25	0.31
Total annual fund operating expenses	0.84	1.57	0.63
Fee waiver/expense reimbursement	0.00	0.00	0.06
Total annual fund operating expenses after fee waiver/expense reimbursement	0.84	1.57	0.57

The Advisor has contractually agreed through November 30, 2024 to waive its fees and/or reimburse fund expenses to the extent necessary to maintain the

fund's total annual operating expenses (excluding certain expenses such as extraordinary expenses, taxes, brokerage and interest expenses) at a ratio no higher than 0.57% for Class S. The agreement may only be terminated with the consent of the fund's Board.

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 (including one year of capped expenses in each period for Class S) remain the same. Class C shares generally convert automatically to Class A shares after 8 years. The information presented in the Example for Class C reflects the conversion of Class C shares to Class A shares after 8 years. See “Class C Shares” in the “Choosing a Share Class” section of the prospectus for more information. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Years	A	C	S
1	$86	$260	$58
3	268	496	196
5	466	855	345
10	1,037	1,671	781

You would pay the following expenses if you did not redeem your shares:

Years	A	C	S
1	$86	$160	$58
3	268	496	196
5	466	855	345
10	1,037	1,671	781

Prospectus December 1, 2023

DWS Money Market Prime Series

Principal Investment Strategies

Main investments. The fund is a money market fund that is managed in accordance with federal regulations which govern the quality, maturity, diversity and liquidity of instruments in which a money market fund may invest.

The fund invests in high quality, short-term, US dollar denominated money market instruments, including obligations of US and foreign banks, corporate obligations, US government securities, municipal securities, repurchase agreements and asset-backed securities, paying a fixed, variable or floating interest rate.

Under normal market conditions, the fund will invest more than 25% of its total assets in the obligations of banks and other financial institutions that satisfy the fund's eligibility requirements.

The fund may invest up to 10% of its total assets in other money market funds.

Management process. Working in consultation with portfolio management, a credit team screens potential securities and develops a list of those that the fund may buy. Portfolio management, looking for attractive yield and weighing considerations such as credit quality, economic outlooks and possible interest rate movements, then decides which securities on this list to buy.

Main Risks

There are several risk factors that could reduce the yield you get from the fund, cause the fund’s performance to trail that of other investments, or cause you to lose money.

Money market fund risk. 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. The fund may impose a discretionary liquidity fee (not to exceed 2%) upon redemption of shares if the fund's Board determines a liquidity fee is in the fund's best interests. The Board may impose such a fee in times of market stress, impaired liquidity of the fund's investments or in other circumstances. A liquidity fee would reduce the amount a shareholder receives upon redemption of shares. 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.

Market risk. The market value of the securities in which the fund invests may be impacted by the prospects of individual issuers, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Market disruption risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or

conditions in one country or region will adversely impact markets or issuers in other countries or regions. The value of the fund’s investments may be negatively affected by adverse changes in overall economic or market conditions, such as the level of economic activity and productivity, unemployment and labor force participation rates, inflation or deflation (and expectations for inflation or deflation), interest rates, demand and supply for particular products or resources including labor, and debt levels and credit ratings, among other factors. Such adverse conditions may contribute to an overall economic contraction across entire economies or markets, which may negatively impact the profitability of issuers operating in those economies or markets. In addition, geopolitical and other globally interconnected occurrences, including war, terrorism, economic or financial crises, uncertainty or contagion, trade disputes, government debt crises (including defaults or downgrades) or uncertainty about government debt payments, government shutdowns, public health crises, natural disasters, climate change and related events or conditions have led, and in the future may lead, to disruptions in the US and world economies and markets, which may increase financial market volatility and have significant adverse direct or indirect effects on the fund and its investments. Adverse market conditions or disruptions could cause the fund to lose money, experience significant redemptions, and encounter operational difficulties. Although multiple asset classes may be affected by adverse market conditions or a particular market disruption, the duration and effects may not be the same for all types of assets.

Current military conflicts in various geographic regions, including those in Europe and the Middle East, can lead to, and have led to, economic and market disruptions, which may not be limited to the geographic region in which the conflict is occurring. Such conflicts can also result, and have resulted in some cases, in sanctions being levied by the United States, the European Union and/or other countries against countries or other actors involved in the conflict. In addition, such conflicts and related sanctions can adversely affect regional and global energy, commodities, financial and other markets and thus could affect the value of the fund's investments. The extent and duration of any military conflict, related sanctions and resulting economic and market disruptions are impossible to predict, but could be substantial.

Other market disruption events include the pandemic spread of the novel coronavirus known as COVID-19, which at times has caused significant uncertainty, market volatility, decreased economic and other activity, increased government activity, including economic stimulus measures, and supply chain disruptions. While COVID-19 is no longer considered to be a public health emergency, the fund and its investments may be adversely affected by its lingering effects well into the future.

Prospectus December 1, 2023

DWS Money Market Prime Series

Adverse market conditions or particular market disruptions, such as those caused by current military conflicts and the COVID-19 pandemic, may magnify the impact of each of the other risks described in this “MAIN RISKS” section and may increase volatility in one or more markets in which the fund invests leading to the potential for greater losses for the fund.

Interest rate risk. Rising interest rates could cause the value of the fund’s investments — and therefore its share price as well — to decline. A rising interest rate environment may cause investors to move out of fixed-income securities and related markets on a large scale, which could adversely affect the price and liquidity of such securities and could also result in increased redemptions from the fund. Increased redemptions from the fund may force the fund to sell investments at a time when it is not advantageous to do so, which could result in losses. Recently, the US Federal Reserve has raised interest rates in response to increased inflation. As a result, fixed-income and related markets may experience heightened levels of interest rate volatility and liquidity risk. A sharp rise in interest rates could cause the value of the fund’s investments to decline and impair the fund’s ability to maintain a stable $1.00 share price. Conversely, any decline in interest rates is likely to cause the fund’s yield to decline, and during periods of unusually low or negative interest rates, the fund’s yield may approach or fall below zero. A low or negative interest rate environment may prevent the fund from providing a positive yield or paying fund expenses out of current income and, at times, could impair the fund’s ability to maintain a stable $1.00 share price. Over time, the total return of a money market fund may not keep pace with inflation, which could result in a net loss of purchasing power for long-term investors. Interest rates can change in response to the supply and demand for credit, government and/or central bank monetary policy and action, inflation rates, and other factors. Recent and potential future changes in monetary policy made by central banks or governments are likely to affect the level of interest rates. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and potential illiquidity and may detract from fund performance to the extent the fund is exposed to such interest rates and/or volatility. Money market funds try to minimize interest rate risk by purchasing short-term securities. If there is an insufficient supply of US government securities to meet investor demand, it could result in lower yields on such securities and increase interest rate risk for the fund.

Authority in the United Kingdom, LIBOR's regulator, has required the continued publishing of certain “synthetic” US Dollar LIBOR rates for a period of 15 months after June 30, 2023 for use in certain cases. The transition process from LIBOR to Secured Overnight Financing Rate (SOFR) for US Dollar LIBOR rates has become increasingly well defined, especially following the signing of the federal Adjustable Interest Rate (LIBOR) Act in March 2022, and the adoption of implementing regulations in December 2022, which replaced LIBOR-based benchmark rates in instruments with no, or insufficient, alternative rate-setting provisions with a SOFR-based rate following the cessation of LIBOR. There is no assurance that the composition or characteristics of any such alternative reference rate will be similar to or produce the same value or economic equivalence as LIBOR or that it will have the same volume or liquidity as did LIBOR prior to its discontinuance or unavailability, which may affect the value or liquidity of, or return on, certain of the fund's investments.

Credit risk. The fund's performance could be hurt and the fund's share price could fall below $1.00 if an issuer of a debt security suffers an adverse change in financial condition that results in the issuer not making timely payments of interest or principal, a security downgrade or an inability to meet a financial obligation.

For securities that rely on third-party guarantors to support their credit quality, the same risks may apply if the financial condition of the guarantor deteriorates or the guarantor ceases to insure securities. Because guarantors may insure many types of securities, including subprime mortgage bonds and other high-risk bonds, their financial condition could deteriorate as a result of events that have little or no connection to securities owned by the fund.

Some securities issued by US government agencies or instrumentalities are backed by the full faith and credit of the US government. Other securities that are supported only by the credit of the issuing agency or instrumentality are subject to greater credit risk than securities backed by the full faith and credit of the US government. This is because the US government might provide financial support, but has no obligation to do so, if there is a potential or actual loss of principal or failure to make interest payments.

Prospectus December 1, 2023

DWS Money Market Prime Series

could increase the risk that the US government may default on payments on certain US government securities, cause the credit rating of the US government to be downgraded or increase volatility in financial markets, result in higher interest rates, reduce prices of US Treasury securities and/or increase the costs of certain kinds of debt.

Liquidity and transaction risk. The liquidity of portfolio securities can deteriorate rapidly due to credit events affecting issuers or guarantors or due to general market conditions and a lack of willing buyers. When there are no willing buyers and an instrument cannot be readily sold at a desired time or price, the fund may have to accept a lower price or may not be able to sell the instrument at all. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from money market funds may be higher than normal, potentially causing increased supply in the market due to selling activity. If dealer capacity in debt instruments is insufficient for market conditions, it may further inhibit liquidity and increase volatility in the debt markets. Additionally, market participants other than the fund may attempt to sell debt holdings at the same time as the fund, which could cause downward pricing pressure and contribute to illiquidity. An inability to sell one or more portfolio securities can adversely affect the fund’s ability to maintain a $1.00 share price or prevent the fund from being able to take advantage of other investment opportunities.

Unusual market conditions, an unusually high volume of redemption requests or other similar conditions could cause the fund to be unable to pay redemption proceeds within a short period of time. If the fund is forced to sell securities at an unfavorable time and/or under unfavorable conditions, such sales may adversely affect the fund’s ability to maintain a $1.00 share price.

Security selection risk. Although short-term securities are relatively stable investments, it is possible that the securities in which the fund invests will not perform as expected. This could cause the fund's returns to lag behind those of similar money market funds and could result in a decline in share price.

in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates). Municipal securities may include revenue bonds, which are generally backed by revenue from a specific project or tax. The issuer of a revenue bond makes interest and principal payments from revenues generated from a particular source or facility, such as a tax on particular property or revenues generated from a municipal water or sewer utility or an airport. Revenue bonds generally are not backed by the full faith and credit and general taxing power of the issuer. The value of municipal securities is strongly influenced by the value of tax-exempt income to investors. Changes in tax and other laws, including changes to individual or corporate tax rates, could alter the attractiveness and overall demand for municipal securities. Municipal securities may also have exposure to potential physical risks resulting from climate change, including extreme weather, flooding and fires. Climate risks, if they materialize, can adversely impact a municipal issuer’s financial plans in current or future years or may impair a facility or other source generating revenues backing a municipal issuer’s revenue bonds. As a result, the impact of climate risks may adversely impact the value of the fund’s shares.

Repurchase agreement risk. If the party that sells the securities to the fund defaults on its obligation to repurchase them at the agreed-upon time and price, the fund could lose money.

Counterparty risk. A financial institution or other counterparty with whom the fund does business, or that underwrites, distributes or guarantees any investments or contracts that the fund owns or is otherwise exposed to, may decline in financial health and become unable to honor its commitments. This could cause losses for the fund or could delay the return or delivery of collateral or other assets to the fund.

Concentration risk. Any fund that concentrates in a particular segment of the market will generally be more volatile than a fund that invests more broadly. Any market price movements, regulatory or technological changes, or economic conditions affecting banks or financial institutions will have a significant impact on the fund’s performance.

In particular, banks and other financial institutions are highly dependent on short-term interest rates and can be adversely affected by downturns in the US and foreign economies or changes in banking regulations.

Prepayment and extension risk. When interest rates fall, issuers of high interest debt obligations may pay off the debts earlier than expected (prepayment risk), and the fund may have to reinvest the proceeds at lower yields. When interest rates rise, issuers of lower interest debt obligations may pay off the debts later than expected (extension risk), thus keeping the fund’s assets tied up in lower interest debt obligations. Ultimately, any unexpected behavior in interest rates could increase the volatility of

Prospectus December 1, 2023

DWS Money Market Prime Series

the fund’s yield and could hurt fund performance. Prepayments could also create capital gains tax liability in some instances.

Foreign investment risk. Foreign investments include certain special risks, such as unfavorable political and legal developments, limited financial information, regulatory risk and economic and financial instability. As of January 1, 2021 the United Kingdom is no longer part of the European Union (EU) customs union and single market, nor is it subject to EU policies and international agreements. The long-term impact of the United Kingdom’s withdrawal from the EU is still unknown and could have adverse economic and political effects on the United Kingdom, the EU and its member countries, and the global economy, including financial markets and asset valuations.

Risks of holding cash. The fund will at times hold cash positions, which may hurt the fund’s performance. Cash positions may also subject the fund to additional risks and costs, including any fees imposed by the fund’s custodian for large cash balances.

Inflation risk. Inflation risk is the risk that the real value of certain assets or real income from investments (the value of such assets or income after accounting for inflation) will be less in the future as inflation decreases the value of money. Inflation, and investors’ expectation of future inflation, can impact the current value of the fund's portfolio, resulting in lower asset values and losses to shareholders. This risk may be elevated compared to historical market conditions because of recent monetary policy measures and the current interest rate environment.

Operational and technology risk. Cyber-attacks, disruptions or failures that affect the fund’s service providers or counterparties, issuers of securities held by the fund, or other market participants may adversely affect the fund and its shareholders, including by causing losses for the fund or impairing fund operations. For example, the fund’s or its service providers’ assets or sensitive or confidential information may be misappropriated, data may be corrupted and operations may be disrupted (e.g., cyber-attacks, operational failures or broader disruptions may cause the release of private shareholder information or confidential fund information, interfere with the processing of shareholder transactions, impact the ability to calculate the fund’s net asset value and impede trading). Market events and disruptions also may trigger a volume of transactions that overloads current information technology and communication systems and processes, impacting the ability to conduct the fund’s operations.

have not been identified or that unknown threats may emerge in the future and there is no assurance that such plans and processes will be effective. Among other situations, disruptions (for example, pandemics or health crises) that cause prolonged periods of remote work or significant employee absences at the fund’s service providers could impact the ability to conduct the fund’s operations. In addition, the fund cannot directly control any cybersecurity plans and systems put in place by its service providers, fund counterparties, issuers of securities held by the fund or other market participants.

Past Performance

How a fund's returns vary from year to year can give an idea of its risk.Past performance may not indicate future results. All performance figures below assume that dividends were reinvested. The 7-day yield, which is often referred to as the “current yield,” is the income generated by the fund over a seven-day period. This amount is then annualized, which means that we assume the fund generates the same income every week for a year. For more recent performance figures and the current yield, go to dws.com (the Web site does not form a part of this prospectus) or call the telephone number included in this prospectus.

CALENDAR YEAR TOTAL RETURNS (%) (Class A)

Returns for other classes were different and are not shown here.

	Returns	Period ending
Best Quarter	0.81%	December 31, 2022
Worst Quarter	0.00%	March 31, 2013
Year-to-Date	3.22%	September 30, 2023

Average Annual Total Returns
(For periods ended 12/31/2022 expressed as a %) (Class A)

	Class Inception	1 Year	5 Years	10 Years
Class A	3/12/2007	1.19	0.89	0.49
Class C	3/12/2007	0.79	0.48	0.25
Class S	3/12/2007	1.37	1.05	0.60

Total returns would have been lower if operating expenses had not been reduced.

Prospectus December 1, 2023

DWS Money Market Prime Series

Management

Investment Advisor

DWS Investment Management Americas, Inc.

Purchase and Sale of Fund Shares

Minimum Initial Investment ($)

	Non-IRA	IRAs	UGMAs/ UTMAs	Automatic Investment Plans
A, C	1,000	500	1,000	500
S	2,500	1,000	1,000	1,000

For participants in all group retirement plans, and in certain fee-based and wrap programs approved by the Advisor, there is no minimum initial investment and no minimum additional investment for Class A, C and S shares. For Section 529 college savings plans, there is no minimum initial investment and no minimum additional investment for Class S shares. The minimum initial investment for Class S shares may be waived for eligible intermediaries that have agreements with DDI to offer Class S shares in their brokerage platforms when such Class S shares are held in omnibus accounts on such brokerage platforms. The minimum additional investment in all other instances is $50.

To Place Orders

Mail	All Requests	DWS PO Box 219151 Kansas City, MO 64121-9151
Expedited Mail		DWS 430 West 7th Street Suite 219151 Kansas City, MO 64105-1407
Web Site		dws.com
Telephone		(800) 728-3337, M – F 8 a.m. – 7 p.m. ET
Hearing Impaired		For hearing impaired assistance, please call us using a relay service

Class S shares are available through certain intermediary relationships with financial services firms, or can be purchased by establishing an account directly with the fund’s transfer agent.

The fund is generally open on days when the New York Stock Exchange is open for regular trading. If you invest with the fund directly through the transfer agent, you can open a new fund account (Class S shares only) and make an initial investment on the Internet at dws.com, by using the mobile app or by mail. You can make additional investments or sell shares of the fund on any business day by visiting the fund’s Web site, by using the mobile app, by mail, or by telephone; however you may have to elect certain privileges on your initial account application. The ability to open new fund accounts and to transact online or using the mobile app varies depending on share class and account type. If you are working with a financial representative, contact your financial representative for assistance with buying or selling fund shares. A financial representative separately may impose its own policies and procedures for buying and selling fund shares.

Any new investors wishing to purchase shares of the fund may be required to demonstrate eligibility. If the fund subsequently determines that a beneficial owner of fund shares is not a natural person, then the fund, upon notice, will involuntarily redeem all of the shares of such ineligible investor and send the net proceeds to the investor.

Tax Information

The fund's distributions are generally taxable to you as ordinary income or capital gains, except when your investment is in an IRA, 401(k), or other tax-advantaged investment plan. Any withdrawals you make from such tax-advantaged investment plans, however, may be taxable to you.

Payments to Broker-Dealers and
Other Financial Intermediaries

If you purchase shares of the fund through a broker-dealer or other financial intermediary (such as a bank), the fund, the Advisor, and/or the Advisor’s affiliates may pay the 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 intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s Web site for more information.

Prospectus December 1, 2023

DWS Money Market Prime Series

Fund Details

Additional Information About Fund Strategies and Risks

Investment Objective

The fund seeks maximum current income to the extent consistent with stability of principal.

Principal Investment Strategies

◾

Fund securities are denominated in US dollars and, at the time of purchase, have remaining maturities of 397 days (about 13 months) or less, or have certain maturity shortening features (such as interest rate resets and demand features) that have the effect of reducing their maturities to 397 days or less.

◾

The fund maintains a dollar-weighted average maturity of (i) 60 days or less and (ii) 120 days or less determined without regard to interest rate resets.

◾

The fund maintains certain minimum liquidity standards such that:

the fund may not purchase a security other than a security offering daily liquidity if, immediately after purchase, the fund would have invested less than 10% of its total assets in securities offering daily liquidity (includes securities that mature or are subject to demand within one business day, cash or direct US government obligations);

the fund may not purchase a security other than a security offering weekly liquidity if, immediately after purchase, the fund would have invested less than 30% of its total assets in securities offering weekly liquidity (includes securities that mature or are subject to demand within five business days, cash, direct US government obligations and government agency discount notes with remaining maturities of 60 days or less); and

the fund may not purchase an illiquid security if, immediately after purchase, the fund would have invested more than 5% of its total assets in illiquid securities (securities that cannot be sold or disposed of in the ordinary course of business within seven days at approximately the market value ascribed to them by the fund).

The fund invests in high quality, short-term, US dollar denominated money market instruments paying a fixed, variable or floating interest rate. These include:

◾

Debt obligations issued by US and foreign banks, financial institutions, corporations, municipalities or other entities, including certificates of deposit, euro-time deposits, commercial paper (including asset-backed commercial paper), notes, funding agreements and US government securities. Securities that do not satisfy the maturity restrictions for a money market fund may be specifically structured so that they are eligible investments for money market funds. For example, some securities have features which have the effect of shortening the security’s maturity.

◾

US government securities that are issued or guaranteed by the US Treasury, or by agencies or instrumentalities of the US government.

◾

Repurchase agreements, which are agreements to buy securities at one price, with a simultaneous agreement to sell back the securities at a future date at an agreed-upon price.

◾

Asset-backed securities, which are generally participations in a pool of assets whose payment is derived from the payments generated by the underlying assets. Payments on asset-backed securities generally consist of interest and/or principal.

Under normal market conditions, the fund will invest more than 25% of its total assets in the obligations of banks and other financial institutions that satisfy the fund's eligibility requirements.

The fund may invest up to 10% of its total assets in other money market funds.

Management process. The fund buys US government debt obligations, money market instruments and other debt obligations that the Advisor determines present minimal credit risks.

Prospectus December 1, 2023

Fund Details

In considering whether a security presents minimal credit risks, the Advisor will analyze the capacity of the security’s issuer or guarantor to meet its financial obligations, which includes, as appropriate, with respect to the issuer or guarantor the following factors: (i) financial condition, (ii) sources of liquidity, (iii) ability to react to future market-wide and issuer specific events, including ability to repay debt in a highly adverse situation; and (iv) competitive position within its industry and industry strength within the economy and relative to economic trends.

Working in consultation with portfolio management, a credit team screens potential securities and develops a list of those that the fund may buy. Portfolio management, looking for attractive yield and weighing considerations such as credit quality, economic outlooks and possible interest rate movements, then decides which securities on this list to buy.

Portfolio management may adjust the fund’s exposure to interest rate risk, typically seeking to take advantage of possible rises in interest rates and to preserve yield when interest rates appear likely to fall.

Other Investment Strategies

Securities lending. The fund may lend securities (up to one-third of total assets) for a fee to approved institutions, such as registered broker-dealers, pooled investment vehicles, banks and other financial institutions. These institutions pledge collateral in the form of cash or US government securities in support of such loans. To the extent the fund engages in securities lending it is seeking to generate additional income In connection with such loans, the fund receives liquid collateral in an amount that is based on the type and value of the securities being lent.

Main Risks

There are several risk factors that could reduce the yield you get from the fund, cause the fund’s performance to trail that of other investments, or cause you to lose money.

Market disruption risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. The value of the fund’s investments may be negatively affected by adverse changes in overall economic or market conditions, such as the level of economic activity and productivity, unemployment and labor force participation rates, inflation or deflation (and expectations for inflation or deflation), interest rates, demand and supply for particular products or resources including labor, and debt levels and credit ratings, among other factors. Such adverse conditions may contribute to an overall economic contraction across entire economies or markets, which may negatively impact the profitability of issuers operating in those economies or markets. In addition, geopolitical and other globally interconnected occurrences, including war, terrorism, economic or financial crises, uncertainty or contagion, trade disputes, government debt crises (including defaults or downgrades) or uncertainty about government debt payments, government shutdowns, public health crises, natural disasters, climate change and related events or conditions have led, and in the future may lead, to disruptions in the US and world economies and markets, which may increase financial market volatility and have significant adverse direct or indirect effects on the fund and its investments. Adverse market conditions or disruptions could cause the fund to lose money, experience significant redemptions, and encounter operational difficulties. Although multiple asset classes may be affected by adverse market conditions or a particular market disruption, the duration and effects may not be the same for all types of assets.

Prospectus December 1, 2023

Fund Details

securities. If there is an insufficient supply of US government securities to meet investor demand, it could result in lower yields on such securities and increase interest rate risk for the fund.

London Interbank Offered Rate (LIBOR), a common benchmark rate previously used for certain floating rate securities, has been phased out as of the end of 2021 for most maturities and currencies. As of the end of June 2023, certain remaining widely used US Dollar LIBOR rates that were published for an additional period of time to assist with the transition were also phased out. In addition, to aid in the transition, the Financial Conduct Authority in the United Kingdom, LIBOR's regulator, has required the continued publishing of certain “synthetic” US Dollar LIBOR rates for a period of 15 months after June 30, 2023 for use in certain cases. The transition process from LIBOR to Secured Overnight Financing Rate (SOFR) for US Dollar LIBOR rates has become increasingly well defined, especially following the signing of the federal Adjustable Interest Rate (LIBOR) Act in March 2022, and the adoption of implementing regulations in December 2022, which replaced LIBOR-based benchmark rates in instruments with no, or insufficient, alternative rate-setting provisions with a SOFR-based rate following the cessation of LIBOR. There is no assurance that the composition or characteristics of any such alternative reference rate will be similar to or produce the same value or economic equivalence as LIBOR or that it will have the same volume or liquidity as did LIBOR prior to its discontinuance or unavailability, which may affect the value or liquidity of, or return on, certain of the fund's investments.

If there is an insufficient supply of US government securities to meet investor demand, it could result in lower yields on such securities and increase interest rate risk for the fund.

Prospectus December 1, 2023

Fund Details

support, but has no obligation to do so, if there is a potential or actual loss of principal or failure to make interest payments.

US Government default risk. Due to the rising US government debt burden and potential limitations caused by the statutory debt ceiling, it is possible that the US government may not be able to meet its financial obligations or that securities issued by the US government may experience credit downgrades. In the past, US sovereign credit has experienced downgrades and there can be no guarantee that it will not experience further downgrades in the future by rating agencies. Such a credit event may adversely impact the financial markets and the fund. From time to time, uncertainty regarding the status of negotiations in the US government to increase the statutory debt ceiling and/or failure to increase the statutory debt ceiling could increase the risk that the US government may default on payments on certain US government securities, cause the credit rating of the US government to be downgraded or increase volatility in financial markets, result in higher interest rates, reduce prices of US Treasury securities and/or increase the costs of certain kinds of debt.

Security selection risk. Although short-term securities are relatively stable investments, it is possible that the securities in which the fund invests will not perform as

expected. This could cause the fund's returns to lag behind those of similar money market funds and could result in a decline in share price.

Municipal securities risk. Municipal instruments may be susceptible to periods of economic stress, which could affect the market values and marketability of many or all municipal obligations of issuers in a state, US territory, or possession. The fund could also be impacted by events in the municipal securities market, including the supply and demand for municipal securities. Negative events, such as severe fiscal difficulties, bankruptcy of one or more issuers, an economic downturn, unfavorable legislation, court rulings or political developments, or reduced monetary support from the federal government could hurt fund performance. The municipal securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates). Municipal securities may include revenue bonds, which are generally backed by revenue from a specific project or tax. The issuer of a revenue bond makes interest and principal payments from revenues generated from a particular source or facility, such as a tax on particular property or revenues generated from a municipal water or sewer utility or an airport. Revenue bonds generally are not backed by the full faith and credit and general taxing power of the issuer. The value of municipal securities is strongly influenced by the value of tax-exempt income to investors. Changes in tax and other laws, including changes to individual or corporate tax rates, could alter the attractiveness and overall demand for municipal securities. Municipal securities may also have exposure to potential physical risks resulting from climate change, including extreme weather, flooding and fires. Climate risks, if they materialize, can adversely impact a municipal issuer’s financial plans in current or future years or may impair a facility or other source generating revenues backing a municipal issuer’s revenue bonds. As a result, the impact of climate risks may adversely impact the value of the fund’s shares.

Repurchase agreement risk. If the party that sells the securities to the fund defaults on its obligation to repurchase them at the agreed-upon time and price, the fund could lose money.

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Securities lending risk. Securities lending involves the risk that the fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. A delay in the recovery of loaned securities could interfere with the fund’s ability to vote proxies or settle transactions. Delayed settlement may limit the ability of the fund to reinvest the proceeds of a sale of securities or prevent the fund from selling securities at times and prices it considers desirable. The fund could also lose money in the event of a decline in the value of the collateral provided for the loaned securities, or a decline in the value of any investments made with cash collateral or even a loss of rights in the collateral should the borrower of the securities fail financially while holding the securities.

While the fund and its service providers may establish business continuity and other plans and processes that seek to address the possibility of and fallout from cyber-attacks, disruptions or failures, there are inherent limitations in such plans and systems, including that they do not apply to third parties, such as fund counterparties, issuers of securities held by the fund or other market participants, as well as the possibility that certain risks have not been identified or that unknown threats may emerge in the future and there is no assurance that such plans and processes will be effective. Among other situations, disruptions (for example, pandemics or health crises) that cause prolonged periods of remote work or significant employee absences at the fund’s service providers could impact the ability to conduct the fund’s operations. In addition, the fund cannot directly control any cybersecurity plans and systems put in place by its service providers, fund counterparties, issuers of securities held by the fund or other market participants.

Cyber-attacks may include unauthorized attempts by third parties to improperly access, modify, disrupt the operations of, or prevent access to the systems of the fund’s service providers or counterparties, issuers of securities held by the fund or other market participants or data within them. In addition, power or communications outages, acts of god, information technology equipment malfunctions,

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operational errors, and inaccuracies within software or data processing systems may also disrupt business operations or impact critical data.

Cyber-attacks, disruptions, or failures may adversely affect the fund and its shareholders or cause reputational damage and subject the fund to regulatory fines, litigation costs, penalties or financial losses, reimbursement or other compensation costs, and/or additional compliance costs. In addition, cyber-attacks, disruptions, or failures involving a fund counterparty could affect such counterparty’s ability to meet its obligations to the fund, which may result in losses to the fund and its shareholders. Similar types of operational and technology risks are also present for issuers of securities held by the fund, which could have material adverse consequences for such issuers, and may cause the fund’s investments to lose value. Furthermore, as a result of cyber-attacks, disruptions, or failures, an exchange or market may close or issue trading halts on specific securities or the entire market, which may result in the fund being, among other things, unable to buy or sell certain securities or financial instruments or unable to accurately price its investments.

For example, the fund relies on various sources to calculate its NAV. Therefore, the fund is subject to certain operational risks associated with reliance on third party service providers and data sources. NAV calculation may be impacted by operational risks arising from factors such as failures in systems and technology. Such failures may result in delays in the calculation of the fund’s NAV and/or the inability to calculate NAV over extended time periods. The fund may be unable to recover any losses associated with such failures.

Other Policies and Risks

While the previous pages describe the main points of the fund’s strategy and risks, there are a few other matters to know about:

◾

Although major changes tend to be infrequent, the fund’s Board could change the fund's investment objective without seeking shareholder approval.

◾

From time to time, the fund may have a concentration of shareholder accounts holding a significant percentage of shares outstanding. Investment activities of these shareholders could have a material impact on the fund.

◾

Your fund assets may be at risk of being transferred to the appropriate state if you fail to maintain a valid address and/or if certain activity does not occur in your account within the time specified by state abandoned property law. Contact your financial representative or the transfer agent for additional information.

◾

Shareholders of the fund (which may include affiliated and/or non-affiliated registered investment companies that invest in the fund) may make relatively large redemptions or purchases of fund shares. These transactions may cause the fund to have to sell securities or invest additional cash, as the case may be. While it is impossible to predict the overall impact of these transactions over time, there could be adverse effects on the fund’s performance to the extent that the fund may be required to sell securities or invest cash at times when it would not otherwise do so. These transactions could adversely impact the fund’s liquidity, accelerate the realization of taxable income if sales of securities resulted in capital gains or other income and increase transaction costs, which may adversely affect the fund’s performance. These transactions could also adversely impact the fund’s ability to implement its investment strategies and pursue its investment objective, and, as a result, a larger portion of the fund’s assets may be held in cash or cash equivalents. In addition, large redemptions could significantly reduce the fund’s assets, which may result in an increase in the fund’s expense ratio on account of expenses being spread over a smaller asset base and/or the loss of fee breakpoints.

Potential negative interest rates

In the event that the fund has a negative gross yield as a result of negative interest rates (a “negative interest rate event”), it may be challenging or impossible to maintain a stable net asset value (NAV) of $1.00 per share. However, regulations that govern the operation of money market funds permit the fund, if experiencing a negative interest rate event, to seek to continue to provide a stable net asset value of $1.00 per share by using a Reverse Distribution Mechanism (RDM) which reduces the number of shares in proportion to the fund’s negative income. Shares may continue to have a NAV of $1.00 per share, but each shareholder would have fewer shares. The fund will use an RDM to cancel shares held by shareholders only if the fund’s Board determines that using an RDM is in the best interests of the fund and its shareholders.

If the fund chooses to use an RDM to cancel fund shares, the fund’s per-share NAV may remain stable, but shareholders will lose money as a result of the fund’s negative gross yield. In the event that shares are canceled, tax treatment of distributions and shareholder basis is uncertain. You should consult with your tax advisor to determine whether you will experience any negative tax consequences as a result of the fund’s use of an RDM. Account statements will include disclosure regarding share cancellations if the RDM methodology is used.

For More Information

This prospectus doesn’t tell you about every policy or risk of investing in the fund. If you want more information on the fund’s allowable securities and investment practices

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and the characteristics and risks of each one, you may want to request a copy of the Statement of Additional Information (the back cover tells you how to do this).

Keep in mind that there is no assurance that the fund will achieve its objective.

A schedule of the fund’s portfolio holdings, including information required by applicable regulations, is posted once each month on dws.com (the Web site does not form a part of this prospectus). Portfolio holdings as of each month-end are posted to the Web site within five business days of the date of the applicable portfolio holdings information. More frequent posting of portfolio holdings information may be made from time to time on dws.com. The posted portfolio holdings information is available by fund and generally remains accessible for a period of not less than six months. The fund also may post on the Web site, on the same or a more frequent basis, various depictions of portfolio characteristics such as the allocation of the portfolio across various security types, market sectors and sub-sectors and maturities, liquidity and risk characteristics of the portfolio. The fund’s Statement of Additional Information includes a description of the fund’s policies and procedures with respect to the disclosure of the fund’s portfolio holdings.

Who Manages and Oversees the Fund

The Investment Advisor

DWS Investment Management Americas, Inc. (“DIMA” or the “Advisor”), with headquarters at 875 Third Avenue, New York, NY 10022, is the investment advisor for the fund. Under the oversight of the Board, the Advisor makes investment decisions, buys and sells securities for the fund and conducts research that leads to these purchase and sale decisions. The Advisor is an indirect, wholly-owned subsidiary of DWS Group GmbH & Co. KGaA (“DWS Group”), a separate, publicly-listed financial services firm that is an indirect, majority-owned subsidiary of Deutsche Bank AG. The Advisor and its predecessors have more than 90 years of experience managing mutual funds and provide a full range of global investment advisory services to institutional and retail clients.

DWS represents the asset management activities conducted by DWS Group or any of its subsidiaries, including DIMA, other affiliated investment advisors and DWS Distributors, Inc. (“DDI” or the “Distributor”). DWS is a global organization that offers a wide range of investing expertise and resources, including hundreds of portfolio managers and analysts and an office network that reaches the world’s major investment centers. This well-resourced global investment platform brings together a wide variety of experience and investment insight across industries, regions, asset classes and investing styles.

Management Fee. The Advisor receives a management fee from the fund. Below is the actual rate paid by the fund for the most recent fiscal year, as a percentage of the fund’s average daily net assets.

Fund Name	Fee Paid
DWS Money Market Prime Series	0.315 %

The following waivers are currently in effect:

The Advisor has contractually agreed through September 30, 2024 to waive its fees and/or reimburse fund expenses to the extent necessary to maintain the fund’s total annual operating expenses (excluding certain expenses such as extraordinary expenses, taxes, brokerage and interest expenses) at 0.85% and 1.60% for Class A and Class C, respectively. Additionally, the Advisor has contractually agreed through November 30, 2024 to waive its fees and/or reimburse fund expenses to the extent necessary to maintain the fund’s total annual operating expenses (excluding certain expenses such as extraordinary expenses, taxes, brokerage and interest expenses) at a ratio no higher than 0.57% for Class S. The agreement may only be terminated with the consent of the fund’s Board.

From time to time, the Advisor may voluntarily waive a portion of its fees and/or reimburse certain operating expenses of the fund. These voluntary waivers and/or reimbursements may be terminated at any time at the option of the Advisor. These voluntary waivers and/or reimbursements are in addition to any existing contractual expense limitations.

The Advisor and its affiliates may voluntarily waive a portion of their fees and/or reimburse certain expenses to the extent necessary to assist the fund in attempting to avoid a negative yield. There is no guarantee that the fund will avoid a negative yield. These voluntary waivers and/or reimbursements may be amended or terminated at any time at the option of the Advisor. These voluntary waivers and/or reimbursements are in addition to any existing contractual expense limitations.

A discussion regarding the basis for the Board's approval of the fund’s investment management agreement is contained in the most recent shareholder report for the annual period ended July 31 and the semi-annual period ended January 31 (see “Shareholder reports” on the back cover).

Under a separate administrative services agreement between the fund and the Advisor, the fund pays the Advisor a fee of 0.097% of the fund’s average daily net assets for providing most of the fund's administrative services. The administrative services fee discussed above is included in the fees and expenses table under “Other expenses.”

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Multi-Manager Structure. The Advisor, subject to the approval of the Board, has ultimate responsibility to oversee any subadvisor to the fund and to recommend the hiring, termination and replacement of subadvisors. The fund and the Advisor have received an order from the SEC that permits the Advisor to appoint or replace certain subadvisors, to manage all or a portion of the fund’s assets and enter into, amend or terminate a subadvisory agreement with certain subadvisors, in each case subject to the approval of the fund’s Board but without obtaining shareholder approval (“multi-manager structure”). The multi-manager structure applies to subadvisors that are not affiliated with the fund or the Advisor (“nonaffiliated subadvisors”), as well as subadvisors that are indirect or direct, wholly-owned subsidiaries of the Advisor or that are indirect or direct, wholly-owned subsidiaries of the same company that, indirectly or directly, wholly owns the Advisor (“wholly-owned subadvisors”). Pursuant to the SEC order, the Advisor, with the approval of the fund’s Board, has the discretion to terminate any subadvisor and allocate and reallocate the fund’s assets among any other nonaffiliated subadvisors or wholly-owned subadvisors (including terminating a nonaffiliated subadvisor and replacing it with a wholly-owned subadvisor). The fund and the Advisor are subject to the conditions imposed by the SEC order, including the condition that within 90 days of hiring a new subadvisor pursuant to the multi-manager structure, the fund will provide shareholders with an information statement containing information about the new subadvisor. The shareholders of the fund have approved the multi-manager structure described herein.

Management

A group of investment professionals is responsible for the day-to-day management of the fund. These investment professionals have a broad range of experience managing money market funds.

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Investing in the Fund

This prospectus offers the share classes noted on the front cover. The fund offers another class of shares in a separate prospectus. All classes of the fund have the same investment objective and investments, but each class has its own fees and expenses, offering you a choice of cost structures:

◾

Class A shares and Class C shares are intended for investors seeking the advice and assistance of a financial representative, who will typically receive compensation for those services.

◾

Class S shares are available through certain intermediary relationships with financial services firms, or can be purchased by establishing an account directly with the fund’s transfer agent.

Your financial representative may also charge you additional fees, commissions or other charges.

The following pages tell you how to invest in the fund and what to expect as a shareholder. The following pages also tell you about many of the services, choices and benefits of being a shareholder. You’ll also find information on how to check the status of your account.

If you’re investing directly with the fund’s transfer agent, all of this information applies to you. If you’re investing through a “third party provider” — for example, a workplace retirement plan, financial supermarket or financial representative — your provider may have its own policies or instructions and you should follow those. Refer to Appendix B “Sales Charge Waivers and Discounts Available Through Intermediaries” for information about available sales charge waivers and discounts through certain intermediaries.

You can find out more about the topics covered here by speaking with your financial representative or a representative of your workplace retirement plan or other investment provider. For an analysis of the fees associated with an investment in the fund or similar funds, please refer to tools.finra.org/fund_analyzer/ (this Web site does not form a part of this prospectus).

The fund, the Distributor and the transfer agent do not provide investment advice or recommendations to existing or potential shareholders with respect to investing in the fund, including which class may be appropriate for you.

Choosing a Share Class

Before you invest, take a moment to look over the characteristics of each share class, so that you can be sure to choose the class that’s right for you.

We describe each share class in detail on the following pages. But first, you may want to look at the following table, which gives you a brief description and comparison of the main features of each class. You should consult with your financial representative to determine which class of shares is appropriate for you.

Classes and features	Points to help you compare
Class A
◾No sales charge when you buy shares ◾In most cases, no charge when you sell shares ◾Up to 0.25% annual share- holder servicing fee	◾Total annual expenses are lower than those for Class C ◾The sales charge applicable to Class A shares of other DWS funds will apply for exchanges from Class A of the fund into Class A of other DWS funds ◾Distributions are generally higher than Class C
Class C
◾No sales charge when you buy shares ◾Deferred sales charge of 1.00%, charged when you sell shares you bought within the last year ◾0.75% annual distribution fee and up to 0.25% annual share- holder servicing fee	◾Class C has higher annual expenses than those for Class A and a one year deferred sales charge ◾Distributions are generally lower than Class A ◾Maximum investment applies ◾Class C automatically converts to Class A after 8 years, provided that records held by the fund or your financial inter- mediary verify Class C shares have been held for at least 8 years
Class S
◾No sales charge when you buy shares and no deferred sales charge when you sell shares	◾Total annual expenses are lower than those for Class A and Class C ◾Distributions are generally higher than Class A and Class C

Class A and C shares are primarily designed to serve as a money market fund alternative for investors purchasing Class A and C shares of other DWS funds. Thus, investors may consider purchasing shares of the fund on exchange from a like class of another DWS fund, or as part of an asset allocation strategy across like class shares of several DWS funds. In addition, investors may consider purchasing shares of the fund with the intention of gradually

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exchanging into like class shares of one or more DWS funds (e.g., using a strategy of ”dollar cost” averaging). In considering which class of the fund is most appropriate, investors will want to consider with their financial representative the overall structure of their investment program within the DWS family and the role that the fund will play as the money market fund alternative within that structure. Since Class A shares of the fund are sold without a sales charge (although there may be a sales charge on exchange to Class A shares of other DWS funds) and have lower expenses than Class C shares, Class C shares of the fund would not be appropriate as a stand–alone investment that is not integrated into an investment program across like class shares of other DWS funds.

The contingent deferred sales charge (CDSC) on redemptions of Class A and Class C shares are paid to the fund’s distributor, DDI, who may distribute all or a portion of the sales charge to your financial representative.

Class A Shares

Class A shares have no sales charge when you buy shares.

Class A shares have a 12b-1 plan, under which a shareholder servicing fee of up to 0.25% is deducted from class assets each year. Because the shareholder servicing fee is continuous in nature, it may, over time, increase the cost of your investment and may cost you more than paying other types of sales charges.

If you later exchange Class A shares of the fund for Class A shares of another DWS fund, you’ll be charged any applicable sales charge of that DWS fund. If you bought shares of the fund by exchange from a DWS fund where you already paid a sales charge, those shares are no longer subject to a sales charge if you later exchange back into a DWS fund with a Class A sales charge.

Class A shares acquired in an exchange from shares of another DWS fund that were subject to a CDSC at the time of the exchange will continue to be subject to the CDSC schedule of the shares of the fund you originally purchased. No CDSC charges apply to shares of the fund acquired directly.

Class C Shares

Class C shares may appeal to investors who aren’t certain of their investment time horizon.

With Class C shares, you pay no up-front sales charge to the fund. Class C shares have a 12b-1 plan, under which a distribution fee of 0.75% and a shareholder servicing fee of up to 0.25% are deducted from class assets each year. Because of the distribution fee, the annual expenses for Class C shares are higher than those for Class A shares (and the performance of Class C shares is correspondingly lower than that of Class A shares).

Class C shares have a CDSC, but only on shares you sell within one year of buying them:

Year after you bought shares	CDSC on shares you sell
First year	1.00 %
Second year and later	None

This CDSC is waived under certain circumstances described below.

(1)

redemptions by (i) employer-sponsored employee benefit plans using the subaccount recordkeeping system made available through ADP, Inc. under an alliance between ADP, Inc. and DDI and its affiliates; or (ii) DWS/Ascensus 403(b) Plans;

(2)

redemption of shares of a shareholder (including a registered joint owner) who has died;

(3)

redemption of shares of a shareholder (including a registered joint owner) who after purchase of the shares being redeemed becomes totally disabled (as evidenced by a determination by the federal Social Security Administration);

(4)

redemptions under a fund’s Systematic Withdrawal Plan at a maximum of 12% per year of the net asset value of the account;

(5)

redemption of shares by an employer-sponsored employee benefit plan that offers funds in addition to DWS funds and whose dealer of record has waived the advance of the first year administrative service and distribution fees applicable to such shares and agrees to receive such fees quarterly;

(6)

redemption of shares purchased through a dealer-sponsored asset allocation program maintained on an omnibus recordkeeping system provided the dealer of record had waived the advance of the first year administrative services and distribution fees applicable to such shares and has agreed to receive such fees quarterly;

(7)

redemptions made pursuant to any IRA systematic withdrawal based on the shareholder’s life expectancy including, but not limited to, substantially equal periodic payments described in Internal Revenue Code Section 72(t)(2)(A)(iv) prior to age 59 1/2; and

(8)

redemptions to satisfy required minimum distributions from an IRA account (with the maximum amount subject to this waiver being based only upon the shareholder’s DWS IRA accounts).

Your financial representative or Shareholder Services can answer your questions and help you determine if you’re eligible for a CDSC waiver. In addition, certain intermediaries may provide different CDSC waivers. These waivers and the applicable intermediaries are described under “Sales Charge Waivers and Discounts Available Through Intermediaries” in Appendix B to this prospectus.

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Investing in the Fund

While Class C shares do not have an up-front sales charge, their higher annual expenses because of the ongoing 12b-1 fees paid out of fund assets mean that, over the years, you could end up paying more than the equivalent of the maximum allowable up-front sales charge.

Orders to purchase Class C shares in excess of $500,000 will be declined with the exception of orders received from financial representatives acting for clients whose shares are held in an omnibus account and certain employer-sponsored employee benefit plans.

Class C shares automatically convert to Class A shares in the same fund after 8 years, provided that the fund or the financial intermediary through which the shareholder purchased the Class C shares has records verifying that the Class C shares have been held for at least 8 years. Due to operational limitations at your financial intermediary, your ability to have your Class C shares automatically converted to Class A shares may be limited. (For example, automatic conversion of Class C shares to Class A shares will not apply to fund shares held through group retirement plan recordkeeping platforms of certain broker-dealer intermediaries who hold such shares in an omnibus account and do not track participant level share lot aging. Such Class C shares would not satisfy the conditions for the automatic conversion.) Please consult your financial representative for more information. The automatic conversion of Class C shares to Class A shares would occur on the basis of the relative net asset values of the two classes without the imposition of any sales charges or other charges. Shareholders generally will not recognize a gain or loss for federal income tax purposes upon the conversion of Class C shares to Class A shares in the same fund.

Class S Shares

Class S shares have no initial sales charge, deferred sales charge or 12b-1 fees.

Class S shares are available through (I fee-based programs of investment dealers that have special agreements with DDI, (ii) certain group retirement plans, and (iii) certain registered investment advisors or (iv) by establishing an account directly with the fund's transfer agent.

Investors who purchase shares through a financial intermediary may be charged ongoing fees for services they provide. This includes investors who purchase Class S shares in connection with certain programs or plans, such as:

◾Broker-dealers, banks and registered investment advisors (“RIAs”) in connection with a comprehensive or “wrap” fee program or other fee-based program.

◾Any group retirement, employee stock, bonus, pension or profit-sharing plans.

◾Plans administered as college savings plans under Section 529 of the Internal Revenue Code.

◾Persons who purchase shares through a Health Savings Account or a Voluntary Employees’ Benefit Association (“VEBA”) Trust.

Class S shares may also be available on brokerage platforms of firms that have agreements with DDI to offer such shares when acting solely on an agency basis for its customers for the purchase or sale of such shares. If you transact in Class S shares through one of these programs, you may be required to pay a commission and/or other forms of compensation to your broker. Shares of a fund are available in other share classes that have different fees and expenses.

Class S shares are also available to accounts managed by the Advisor, any advisory products offered by the Advisor or DDI and to funds-of-funds managed by the Advisor or its affiliates.

Investment Minimum

The minimum initial investment may be waived for:

◾Eligible intermediaries that have agreements with DDI to offer Class S shares in their brokerage platforms when such Class S shares are held in omnibus accounts on such brokerage platforms.

Buying, Exchanging and Selling Class A, Class C and Class S Shares

To contact DWS

By TELEPhone

(800) 728-3337

By Mail

Type	Address
Expedited mail
All Requests	DWS 430 West 7th Street Suite 219151 Kansas City, MO 64105-1407
Regular mail
All Requests	DWS P.O. Box 219151 Kansas City, MO 64121-9151

How to Buy Shares

Please note that your account cannot be opened until we receive a completed account application. Eligibility to open new accounts and to process transactions on the Internet or using the mobile app varies by account type and share class.

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Minimum Initial Investment ($)

	Non-IRA	IRAs	UGMAs/ UTMAs	Automatic Investment Plans
A, C	1,000	500	1,000	500
S	2,500	1,000	1,000	1,000

Minimum initial investment requirements apply no matter which method you use to make your purchase request.

Through a Financial Representative

Contact your financial representative to obtain a new account application or for instructions about how to set up a new account. Your financial representative can also assist with making additional investments into an existing account.

On the Internet

Register at dws.com to establish a new account (Class S shares only) or to set up online access to your existing account(s), or log in to the Web site if you have previously registered. Follow the instructions on the Web site to request a purchase with money from the bank account you established on your DWS fund account(s). Electronic purchases via the Automated Clearing House system (ACH) generally take two to three days to be completed and there is a $250,000 maximum. If establishing a new account online, you can also elect to make your initial investment by mailing a check to the address provided in the new account application process.

Using the Mobile App

Download the mobile app (available for both iOS and Android) and register to establish a new account (Class S shares only) or to set up mobile access to your existing account(s), or log in using the mobile app if you have previously registered. Follow the instructions on the mobile app to request a purchase with money from the bank account you established on your DWS fund account(s). Electronic purchases via ACH generally take two to three days to be completed and there is a $250,000 maximum. If establishing a new account using the mobile app, you can also elect to make your initial investment by mailing a check to the address provided in the new account application process.

By Mail or Expedited Mail

To establish an account, simply complete the appropriate account application and mail it to the address provided on the form. With your application, include your check made payable to “DWS Funds” for the required initial minimum investment for the share class you have selected.

Once your account is established, to make additional investments, send a check made payable to “DWS Funds” and an investment slip to the appropriate address. If you do not have an investment slip, include a letter with your name, address, account number, the full fund name and share class, and your investment instructions. If your check fails to clear, the fund has the right to cancel your order, hold you liable or charge you or your account for any losses or fees the fund or its agents have incurred.

By Automatic Investment Plan

If you wish to take advantage of the lower initial investment minimums by establishing an Automatic Investment Plan, make sure to complete that section on the new account application. If you are establishing an account by mail you will need to attach a voided check for the bank account from which the funds will be drawn. Subsequent investments are made automatically from the shareholder’s account at a bank, savings and loan or credit union into the shareholder’s DWS fund account. The maximum Automatic Investment Plan investment is $250,000. Termination by a shareholder will become effective within thirty days after DWS has received the request. The fund may immediately terminate a shareholder’s Automatic Investment Plan in the event that any item is unpaid by the shareholder’s financial institution.

Other Ways to Buy Additional Shares

The following privileges must be established on your account before a request can be made to purchase additional shares. This can either be done by completing the applicable section(s) on the account application when you establish your account or by contacting a customer service representative for instructions.

By Telephone. Call DWS and either use our automated system to request a purchase via the Automated Clearing House system (ACH) or choose to be transferred to a customer service representative to complete your request. Transactions via ACH generally take two to three days to be completed and there is a $50 minimum and a $250,000 maximum.

The fund’s shares are available for purchase only by natural persons. The fund has implemented policies and procedures that are reasonably designed to limit beneficial ownership of the fund’s shares to natural persons. Natural persons may invest in the fund directly or through certain tax-advantaged savings accounts, trusts and other retirement accounts, which may include participant directed defined contribution plans, individual retirement accounts,

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simplified employee pension arrangements, simple retirement accounts, custodial accounts, deferred compensation plans, medical savings accounts, college savings plans, health savings account plans, or certain other accounts where the ultimate decision maker is an institution (e.g., an investment adviser managing discretionary investment accounts for natural persons or a plan sponsor of a retirement account).

How to Exchange Shares

Requirements and Limits

Class	Exchanging into Another Fund ($)
A, C	1,000 minimum into new non-IRA accounts per fund 500 minimum into new IRA accounts per fund 50 minimum into all existing accounts per fund
S	2,500 minimum into new non-IRA accounts per fund 1,000 minimum into new IRA and UTMA/UGMA accounts per fund 50 minimum into all existing accounts per fund

Requirements and limits with respect to exchanges apply no matter which method you use to make your exchange request. Not all exchange transactions can be processed on the Internet or using the mobile app.

Exchanges between funds are allowed between like share classes. Class A shares may also be exchanged with the following money market fund shares as described in each applicable prospectus: DWS Government & Agency Securities Portfolio – DWS Government & Agency Money Fund shares, DWS Tax-Exempt Portfolio – DWS Tax-Exempt Money Fund shares or DWS Money Market Prime Series – DWS Money Market Fund shares.

Through a Financial Representative

In addition to what is detailed below, your financial representative can assist you with exchanging shares. Please contact your financial representative using the method that is most convenient for you.

On the Internet

Register at dws.com to set up online access to your existing account(s), or log in to the Web site if you have previously registered. Follow the instructions on the Web site to request an exchange to another DWS fund.

Using the Mobile App

Download the mobile app and register to set up mobile access to your existing account(s), or log in using the mobile app if you have previously registered. Follow the instructions on the mobile app to request an exchange to another DWS fund.

By Telephone

Call DWS and either use our automated system to request an exchange or choose to be transferred to a customer service representative to complete your request. For accounts with $5,000 or more, you may also establish a Systematic Exchange Plan for a minimum of $50 to another DWS fund on a regular basis. A representative can assist you with establishing this privilege.

By Mail or Expedited Mail

Write a letter to request an exchange that includes the following information: the name(s) of all owners and address as they appear on your account, the full fund name and share class, the account number from which you want to exchange shares, the dollar amount or number of shares you wish to exchange, and the full name of the fund into which you want to exchange. Also include a daytime telephone number in case we have any questions. All owners should sign the letter and it should be mailed to DWS at the appropriate address.

How to Sell Shares

Requirements and Limits

Class	Selling Shares ($)
A, C	Check redemption:Up to 100,000. More than 100,000 see “Signature Guarantee” Automated Clearing House (ACH) to your bank: Minimum 50, maximum 250,000 Wire redemption to your bank: Minimum 1,000
S	Same as Classes A and C Checkwriting: Minimum $100, maximum $5,000,000

Requirements and limits with respect to redemptions apply no matter which method you use to make your redemption request. Not all redemption transactions can be processed on the Internet or using the mobile app.

Through a Financial Representative

In addition to what is detailed below, your financial representative can assist you with selling shares. Please contact your financial representative using the method that is most convenient for you.

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On the Internet

Using the Mobile App

By Telephone

Call DWS and either use our automated system to request a redemption or choose to be transferred to a customer service representative to complete your request. You may request that a check be sent to the address on the account, or, if you have established the privilege on your account, you may request that your redemption proceeds be sent via the Automated Clearing House system (ACH) to your bank. You may elect overnight delivery of your check for a $20 fee ($25 for Saturday delivery), which will be paid by redeeming a portion of your shares equal to the amount of the fee. Overnight delivery is not available to a P.O. Box. To establish the ability to request redemptions via ACH, you can either complete the applicable section(s) on the account application when you establish your account or contact a customer service representative for instructions. Transactions via ACH generally take two to three days to be completed. For accounts with $5,000 or more, you may also establish a Systematic Withdrawal Plan for a minimum of $50 to be sent on a regular basis as you direct. The $5,000 account minimum requirement does not apply to IRA accounts.

By Mail or Expedited Mail

Write a letter to request a redemption that includes the following information: the name(s) of all owners and address as they appear on your account, the full fund name and share class, the account number from which you want to sell shares, the dollar amount or number of shares you wish to sell, and a daytime telephone number in case we have any questions. All owners should sign the letter and it should be mailed to DWS at the appropriate address. You may elect overnight delivery of your check for a $20 fee ($25 for Saturday delivery), which will be paid by redeeming a portion of your shares equal to the amount of the fee. Overnight delivery is not available to a P.O. Box.

Some redemptions can only be requested in writing with a Medallion Signature Guarantee. For more information, please contact DWS (see the telephone number on the back cover).

By Wire. You may sell shares by wire only if your account is authorized to do so. This privilege must be established on your account before a redemption request can be made. This can either be done by completing the applicable section(s) on the account application when you establish your account or by contacting a customer service representative for instructions. To sell shares by wire, call DWS and either use our automated system to request a redemption or choose to be transferred to a customer service representative to complete your request. We must receive your request by the time the fund calculates its share price on any given business day in order to wire the redemption proceeds to your account the next business day. You will be paid for redeemed shares by wire transfer of funds to your bank upon receipt of a duly authorized redemption request. For your protection, you may not change the destination bank account over the telephone.

By Writing a Check (Class S shares only). You may sell shares of the fund by writing a check drawn from your account (see table for applicable minimum and maximum amounts). Your investment will keep earning dividends until your check clears. It is not a good idea to close out your account using a check because your account balance could change between the time you write the check and the time it is processed. You should also keep in mind that if you make a purchase by check and that check has not yet cleared your bank account, that purchase amount will not be available for immediate redemption.

Policies You Should Know About

Along with the information on the previous pages, the policies below may affect you as a shareholder. Some of this information, such as the section on distributions and taxes, applies to all investors, including those investing through a financial representative.

If you are investing through a financial representative or through a retirement plan, check the materials you received from them about how to buy and sell shares because particular financial representatives or other intermediaries may adopt policies, procedures or limitations that are separate from those described in this prospectus. Please note that a financial representative or other intermediary may charge fees separate from those charged by the fund and may be compensated by the fund.

Keep in mind that the information in this prospectus applies only to the shares offered herein. Other share classes are described in separate prospectuses and have different fees, requirements and services.

Policies About Transactions

In accordance with requirements under anti-money laundering regulations, we may request additional information and/or documents to verify your identity. This information includes, but is not limited to, your name, address, date of birth and other identifying documentation. If after reasonable effort we are unable to obtain this information to

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verify your identity, in accordance with federal regulations, within the time frames established by the fund, we will provide you with written notification and we may reject your application and order.

All transactions are processed at the share price next calculated after the order or instruction is received in “good order.”

Because orders placed through a financial representative must be forwarded to the transfer agent, you’ll need to allow extra time for your order to be processed. Your financial representative should be able to tell you approximately when your order will be processed. It is the responsibility of your financial representative to forward your order to the transfer agent in a timely manner.

In the exercise of its sole discretion, the fund at any time may, without prior notice, refuse, cancel, limit or rescind any purchase; cancel or rescind any purchase order placed through a financial intermediary no later than the business day after the order is received by the financial intermediary; freeze account activity; suspend account services; and/or involuntarily redeem and close an existing account. Specifically, the fund reserves the right to involuntarily redeem an account (i) in case of actual or suspected fraudulent, illegal or suspicious activity by the account owner or any other individual associated with the account; or (ii) if the account owner fails to provide legally required information, including information and/or documentation related to identity verification, to the fund. The fund is not required to provide justification to a potential or existing shareholder for taking any such action. Please be advised that if the fund involuntarily redeems and closes your account, under tax laws, you may be required to recognize a gain or a loss or otherwise incur tax consequences.

With certain limited exceptions, only US residents may invest in the fund.

Good order. We reserve the right to reject any order or instruction that is not in “good order.” Good order generally means that the order or instruction:

◾

is complete and accurate (e.g., includes the account number, fund name, and amount of the transaction);

◾

is provided by a person authorized to act for your account;

◾

is accompanied by any required signatures, including signature guarantees or notarized signatures; and

◾

is accompanied by any required supporting documentation.

Good order requirements are established by the fund or the transfer agent, depend on the type of account or transaction, and may be changed or waived at any time. Contact DWS if you have any questions.

Transaction Processing. Orders for the purchase of shares by wire transfer will normally be effective at the share price next computed after receipt of the wire transfer of the amount to be invested. If a wire transfer

purchase order is received in good order before 2:00 p.m. Eastern time (or prior to the close of the fund, if the New York Stock Exchange (the “Exchange”) closes early on such date), it will normally receive the dividend for that day.

Investments by check will be effective on the business day following receipt and will earn dividends the following business day.

Please contact your financial representative for wire instructions and purchase orders.

Orders processed through dealers or other financial services firms via Fund/SERV will be effected at the share price calculated on the trade day (normally the date the order is received). Purchases processed via Fund/SERV will begin earning dividends on the day the fund receives the payment (typically the next business day). For redemptions processed via Fund/SERV, you generally will receive dividends accrued up to, but not including, the business day that payment for your shares is made.

When selling shares, shareholders generally receive dividends up to, but not including, the business day following the day on which the shares were sold. To sell shares, you must state whether you would like to receive the proceeds by wire or check.

In order to receive proceeds by wire, contact DWS before 12:00 p.m. Eastern time. After you inform DWS of the amount of your redemption, you will receive a trade confirmation number. If the fund receives a sell request before 12:00 p.m. Eastern time and the request calls for proceeds to be sent out by wire, the proceeds will normally be wired on the same day. However, the shares sold will not earn that day’s dividend.

As noted below, proceeds of a redemption may be delayed. The ability to receive “same day” wire redemption proceeds can be affected by a variety of circumstances including the time that the request is made, the level of redemption requests and purchase orders and general market conditions. A request for a same day wire redemption that is received earlier in the day will be given priority over a request received later in the day in the event that it is necessary to limit the amount of same day wire redemptions.

Special Policies on Redemptions. The fund may impose a liquidity fee of up to 2% of the value of the shares redeemed, if the Board, including a majority of board members, who are not “interested persons” (as defined in the Investment Company Act of 1940, as amended (“Independent Board Members”)), determines that imposing a liquidity fee is in the fund's best interest.

A liquidity fee would remain in effect until the Board determines that the fee is no longer in the best interests of the fund. All liquidity fees payable by shareholders of the fund would be payable to the fund and thereafter would be an asset of the fund and may be used for various

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purposes, including to offset any losses realized by the fund when seeking to honor redemption requests during times of market stress.

After the fund implements a liquidity fee, the liquidity fee would generally apply to all redemptions at the first net asset value calculation on the next business day following notification to financial intermediaries and shareholders. However, the Board, in its discretion, may elect to impose a liquidity fee on an intra-day basis. A liquidity fee will be charged on all redemption orders submitted after the effective time of the imposition of the fee by the Board. A liquidity fee would reduce the amount you receive upon redemption of your shares.

Sub-Minimum Balances for Class A and C. The fund may close your account and send you the proceeds if your balance falls below $1,000 ($500 for accounts with an Automatic Investment Plan funded with $50 or more per month in subsequent investments), or below $250 for retirement accounts. We will give you 60 days’ notice (90 days for retirement accounts) so you can either increase your balance or close your account (these policies don’t apply to investors with $100,000 or more in DWS fund shares, investors in certain fee-based and wrap programs offered through certain financial intermediaries approved by the Advisor, or group retirement plans and certain other accounts having lower minimum share balance requirements).

Sub-Minimum Balances for Class S. The fund may close your account and send you the proceeds if your balance falls below $2,500 ($1,000 with an Automatic Investment Plan funded with $50 or more per month in subsequent investments); or below $250 for retirement accounts. We will give you 60 days’ notice (90 days for retirement accounts) so you can either increase your balance or close your account (these policies don’t apply to investors with $100,000 or more in DWS fund shares, investors in certain fee-based and wrap programs offered through certain financial intermediaries approved by the Advisor, or group retirement plans and certain other accounts having lower minimum share balance requirements).

Account Maintenance Fee for Classes A, C and S. The fund charges a $20 account maintenance fee for each fund account that has a balance below $10,000. Except as otherwise noted below, fund accounts are not aggregated by share class or fund. The assessment will occur once per calendar year and may be assessed through the automatic redemption of fund shares in your account. The fee will be assessed on each fund account that falls below the minimum for any reason, including market value fluctuations, redemptions or exchanges.

The account maintenance fee will not apply to: (i) accounts with an automatic investment plan; (ii) accounts held in an omnibus account through a financial intermediary; (iii) accounts maintained on behalf of participants in certain fee-based and wrap programs offered through certain financial intermediaries approved by the Advisor; (iv) participant

level accounts in group retirement plans held on the records of a retirement plan record keeper; (v) accounts held by shareholders who maintain $50,000 or more in aggregate assets in DWS fund shares; (vi) shareholders who consent to electronic delivery for all documents (which include statements, prospectuses, annual and semi-annual reports, and other materials), except for tax forms; (vii) Uniform Gift to Minors (UGMA) and Uniform Transfer to Minors (UTMA) accounts; (viii) Coverdell Education Savings Account (ESA) accounts; and (ix) IRA accounts for shareholders beginning in the year in which they reach the applicable age for required minimum distributions under the Internal Revenue Code. You may elect to receive electronic delivery of DWS fund materials by registering on dws.com, by using the mobile app or by calling the telephone number on the back cover.

Overnight delivery of DWS fund materials. You may request to receive a paper copy of any DWS fund materials via overnight delivery by calling the telephone number on the back cover. If you request an overnight delivery you will be charged a $20 fee ($25 for Saturday delivery) for each request, which will be paid by redeeming a portion of your shares equal to the amount of the fee. Overnight delivery is not available to a P.O. Box.

The automated information line is available 24 hours a day by calling DWS at the telephone number on the back cover. You can use our automated telephone service to get information on DWS funds generally and on accounts held directly at DWS. You can also use this service to request share transactions.

24 hour access via Internet and mobile. By registering your fund accounts online at dws.com or by downloading and registering on the mobile app, you can:

◾

access account information 24 hours a day, 7 days a week,

◾

view your account balances,

◾

buy, exchange and sell fund shares,

◾

access transaction history, statements and tax forms,

◾

update personal information, and

◾

make certain account elections including delivery preferences.

Purchase and redemption orders may be placed at any time, but will only be processed during normal business hours on business days, as detailed in this prospectus. Not all transactions are eligible for processing online or through the mobile app. The ability to open new accounts online or through the mobile app is available only to accounts that are established directly with the fund’s transfer agent, and is limited to certain account types and share classes. Processing certain transactions or opening certain types of accounts may require you to obtain, complete and mail the appropriate form.

When registering online at dws.com or through the mobile app, you will be asked to accept certain terms and conditions, create a user profile and establish a password. The same user profile and password will provide both online

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and mobile app access. Accessing your fund account and transacting online or through the mobile app requires the transmission of personal financial information over the Internet and/or a mobile data network, and is not without risk. Digital communication channels such as those described above are not necessarily secure and are subject to the risk, among others, that any confidential or sensitive information that you send or view may be intercepted or accessed by a third party and subsequently sold or used, including for instance, to gain access to your fund account and redeem shares. We recommend that you take steps to protect your account information, including the use of a secure Internet browser, keeping user IDs and passwords confidential, and taking steps to restrict access to your computer and mobile devices. As long as we follow reasonable security procedures and act on instructions that we reasonably believe are genuine, we will not be responsible for any losses that may occur from unauthorized requests. The fund may modify, suspend, or terminate online or mobile account access or services at any time.

During periods of extreme volume that may result from dramatic economic or stock market events, it is possible that you may have difficulty accessing your account online or using the mobile app. Your online account and/or the mobile app may be unavailable during certain periods due to unforeseen technology issues or for other reasons such as routine maintenance or updates. If you are unable to access your account online or using the mobile app you can reach DWS by mail or by telephone (see contact information on the back cover).

Telephone transactions. Generally, you are automatically entitled to telephone redemption and exchange privileges, but you may elect not to have them when you open your account (paper applications only) or by calling the appropriate telephone number on the back cover.

Transactions by telephone are not without risk. We recommend that you take steps to protect your account information. As long as we follow reasonable security procedures and act on instructions received over the telephone that we reasonably believe are genuine, we will not be responsible for any losses that may occur from unauthorized requests.

During periods of extreme volume that may result from dramatic economic or stock market events or due to unforeseen technology issues, it is possible that you may have difficulty reaching DWS by phone. If you are unable to reach us by phone you may be able to view account information or request transactions online or using the mobile app, or you can mail inquiries to DWS at the address on the back cover.

Responsibility for fraud. The fund and its service providers, including DWS, shall not be liable for any loss incurred by reason of the fund accepting unauthorized transaction requests for your account if the fund reasonably believes the instructions to be genuine. In order to

safeguard your account, you should keep all account information private and review all confirmation statements and other account-related communications as soon as you receive them. We will consider all transactions to be properly processed if discrepancies are not reported promptly. Contact us immediately if you suspect that someone has gained unauthorized access to your account. The DWS Account Security Program provides further information on how you can protect your account. Visit the Investor Resource Center at dws.com for more information.

The fund (for Class S shares only) accepts Automated Clearing House (“ACH”) debit entries for accounts that have elected the checkwriting redemption privilege. Upon receipt of an ACH debit entry referencing your account number you authorize us to redeem shares in your account to pay the entry to the third party originating the debit. Your fund account statement will show all ACH debit entries in your account. In case of errors or questions about your transactions or pre-authorized transfers please contact your financial representative as soon as possible if you believe your statement reflects an improper charge or if you need more information about an ACH debit entry transaction. Your financial representative must contact the Shareholder Service Agent within 60 days of the fund sending you the first fund account statement on which an improper charge appears.

The fund does not issue share certificates.

When you ask us to send or receive a wire, please note that while we don’t charge a fee to send or receive wires, it’s possible that your bank may do so. Wire transactions are generally completed within 24 hours. The fund can only send wires of $1,000 or more and accept wires of $50 or more.

The fund accepts payment for shares only in US dollars by a check drawn on a US bank, a bank or Federal Funds wire transfer or an electronic bank transfer. The fund does not accept third party checks. A third party check is a check made payable to one or more parties and offered as payment to one or more other parties (e.g., a check made payable to you that you offer as payment to someone else). Checks should be payable to “DWS Funds” and drawn by you or a financial institution on your behalf with your name or account number included with the check. If you pay for shares by check and the check fails to clear, we have the right to cancel your order, hold you liable or charge you or your account for any losses or fees the fund or its agents have incurred.

Signature Guarantee. When you want to sell more than $100,000 worth of shares or send proceeds to a third party or to a new address, you’ll usually need to place your order in writing and have your signature guaranteed. However, if you want money transferred electronically to a bank account that is already on file with us, you don’t need a signature guarantee (but other limits may apply). Also,

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generally you don’t need a signature guarantee for an exchange, although we may require one in certain other circumstances.

A signature guarantee is a certification of your signature — a valuable safeguard against fraud. The fund accepts Medallion Signature Guarantees, which can be obtained from an eligible guarantor. Eligible guarantor institutions include commercial banks, savings and loans, trust companies, credit unions, member firms of a national stock exchange or any member or participant of an approved signature guarantor program. A signature guarantee cannot be provided by a notary public.

Selling shares of trust accounts and business or organization accounts may require additional documentation. Please call DWS (see the telephone number on the back cover) or contact your financial representative for more information.

When you sell shares that have a CDSC, the CDSC is based on the original purchase cost or current market value of the shares sold, whichever is less. In processing orders to sell shares, the shares with the lowest CDSC are sold first. For each investment you make, we use the first day of the month in which you bought shares to calculate a CDSC on that particular investment. A CDSC is not imposed when you exchange from one fund into another, however, shares of the fund acquired in an exchange that were subject to a CDSC at the time of the exchange will continue to be subject to the CDSC schedule of the shares of the fund you originally purchased.

If you sell shares in a DWS fund for which you paid a sales charge and then decide to invest with DWS again within six months, you may be able to take advantage of the “reinstatement feature.” With this feature, you can put your money back into the same class of a DWS fund at its current net asset value and, for purposes of a sales charge, it will be treated as if it had never left DWS (this may result in a tax liability for federal income tax purposes). You'll be reimbursed (in the form of fund shares by the Distributor) for any CDSC you paid when you sold shares in a DWS fund. Future CDSC calculations will be based on your original investment date, rather than your reinstatement date.

You can only use the reinstatement feature once for any given group of shares. To take advantage of this feature, contact Shareholder Services or your financial representative.

Class A to Class S in the Same Fund Exchange Privilege. Investors who have invested in Class A shares through a comprehensive or “wrap” fee program or other fee-based program sponsored by a broker-dealer, bank or registered investment adviser or who are transferring to such a program may become eligible to invest in Class S shares. Subject to the discretion of the Distributor, such shareholders may exchange their Class A shares for Class S shares of equal aggregate value of the same fund.

No sales charges or other charges will apply to any such exchanges. Investors should contact their selling and/or servicing agents to learn more about the details of this exchange feature. Shareholders generally will not recognize a gain or loss for federal income tax purposes upon the exchange of Class A shares of a fund for Class S shares of the same fund.

Class C to Class A or Class S in the Same Fund Exchange Privilege. Investors who either (i) have invested in Class C shares through a comprehensive or “wrap” fee program or other fee-based program sponsored by a broker-dealer, bank or registered investment adviser or (ii) have invested in Class C shares and are in the process of transferring their shares to such a program may potentially become eligible to invest in either Class A shares or Class S shares by reason of their participation in such a program. In addition, investors who have invested in Class C shares as part of an Employer-Sponsored Retirement Plan or an Employer-Sponsored IRA may potentially become eligible to invest in Class A shares by reason of their investment in such Employer-Sponsored Retirement Plan or Employer-Sponsored IRA. In such event, subject to the discretion of the Distributor and the limitations noted below, such shareholders may exchange their Class C shares for Class A shares or Class S shares (as applicable) of equal aggregate value of the same fund. No sales charges or other charges will apply to any such exchange. Exchanges under this privilege will generally be processed only in instances where the accounts are not currently subject to a CDSC and only as part of a pre-arranged, multiple-client transaction through the particular financial services firm offering the comprehensive or wrap program or other fee-based program or involving the Employer-Sponsored Retirement Plan or Employer-Sponsored IRA where the Class A shares or Class S shares (as applicable) are available. DDI may agree with financial intermediaries to allow this exchange privilege for accounts currently subject to a CDSC and outside of pre-arranged, multiple-client transactions. In such situations, the financial intermediary may reimburse DDI for a portion of any CDSC that DDI would have otherwise collected on the transaction or a portion of the distribution fees previously advanced by DDI to the financial intermediary in connection with the initial sale of the Class C shares. Investors should contact their selling and/or servicing agents to learn more about the details of this exchange feature. Shareholders generally will not recognize a gain or loss for federal income tax purposes upon the exchange of Class C shares of a fund for Class A shares or Class S shares of the same fund.

Class S to Class A in the Same Fund Exchange Privilege. Exchanges by a financial intermediary of Class S shares for Class A shares of the same fund are allowed without the imposition of a sales charge in connection with a change in account type or otherwise in accordance with the intermediary’s policies and procedures that renders a shareholder ineligible for Class S shares. The availability

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of this exchange privilege depends on the policies, procedures and trading platforms of the intermediary. Investors should contact their financial intermediary to learn more about the details of this exchange feature. Shareholders generally will not recognize a gain or loss for federal income tax purposes upon the exchange of Class S shares of a fund for Class A shares of the same fund.

Money from shares you sell is normally sent out within one business day of when your request is received in good order. In addition, as described above under “Transaction Processing,” requests for redemptions by wire received before the daily cut-off time will normally result in proceeds being sent out by wire on the same day. Redemptions could be delayed for up to seven days. There are circumstances when it could be longer, including, but not limited to, when you are selling shares you bought recently by check or ACH (the funds will be placed under a 10 calendar day hold to ensure good funds) or when unusual circumstances prompt the SEC to allow further delays. Certain expedited redemption processes (e.g., redemption proceeds by wire) may also be delayed or unavailable when you are selling shares recently purchased or in the event of a non-routine closure of the Federal Reserve wire payment system.

Redemptions will generally be in the form of cash, though the fund reserves the right to redeem in kind (as described under “Other Rights We Reserve”). The fund typically expects to satisfy redemption requests by using available cash or by selling portfolio securities if available cash is not sufficient to meet redemptions. The fund may also utilize inter-fund lending, though such use is expected to be rare. The fund may use any of these methods of satisfying redemption requests under normal or stressed market conditions.

The fund reserves the right to suspend or postpone redemptions as permitted pursuant to Section 22(e) of the 1940 Act. Generally, those circumstances are when 1) the Exchange is closed other than customary weekend or holiday closings; 2) the SEC determines that trading on the Exchange is restricted; 3) the SEC determines that an emergency exists which makes the disposal of securities owned by the fund or the fair determination of the value of the fund’s net assets not reasonably practicable; or 4) the SEC, by order or rule, permits the suspension of the right of redemption. Redemption payments by wire may also be delayed in the event of a non-routine closure of the Federal Reserve wire payment system.Additionally, the fund may impose a fee upon the sale of your shares. See “Special Policies on Redemptions,” above. For additional rights reserved by the fund, please see “Other Rights We Reserve.”

Short-Term Trading. Since money market funds hold short-term instruments and are intended to provide liquidity to shareholders, the Advisor does not monitor or limit short-term or excessive trading activity in the fund and, accordingly, the Board of the fund has not approved any

policies and procedures designed to limit this activity. However, the fund reserves the right to and may reject or cancel a purchase or exchange order into the fund for any reason, including if, in the opinion of the Advisor, there appears to be a pattern of short-term or excessive trading by an investor in another DWS fund.

How the Fund Calculates Share Price

To calculate net asset value, or NAV, each share class uses the following equation:

(

Total

Assets

−

Total

Liabilities

)

Total Number of

Shares Outstanding

NAV

The price at which you buy shares is based on the NAV per share calculated after the order is received and accepted by the transfer agent (see “Choosing a Share Class”). The price at which you sell shares is also based on the NAV per share calculated after the order is received and accepted by the transfer agent, although a CDSC may be taken out of the proceeds (see “Choosing a Share Class”).

In valuing securities, we typically use amortized cost to account for any premiums or discounts above or below the face value of any securities the fund buys, and round the per share NAV to the nearest whole cent.

The fund is open for business each day the Exchange is open. Normally, the fund calculates its share price once every business day as of the close of regular trading on the Exchange (typically 4:00 p.m. Eastern time, but sometimes earlier, as in the case of scheduled half-day trading, shortened trading hours due to emergency circumstances or unscheduled suspensions of trading). In the event of scheduled partial day trading, shortened trading hours due to emergency circumstances or unscheduled suspensions of trading on the Exchange, the calculation of share price shall be as of the close of trading on the Exchange. In such instances, the latest time for receipt of wire purchase transactions entitled to receive same day dividend treatment and for receipt of redemption orders for same day wire transfer of proceeds will be the earlier of: (a) 2:00 p.m. (for purchases) or 12:00 p.m. (for redemptions) Eastern time or (b) the early closing time of the Exchange.

The fund may, but is not required to, accept certain types of purchase, exchange and redemption orders on days that the Exchange is closed, or beyond an Exchange early closing time (referred to as a ”Limited Trading Period”) if: (a) the Federal Reserve system is open, (b) the primary trading markets for the fund’s portfolio instruments are open and (c) the Advisor believes there will be adequate liquidity in the short-term markets. The calculation of share price will be as set forth in the prospectus for normal trading days. Orders must be submitted by the cut-off times for receipt of wire purchases entitled to that day’s dividend and for receipt of telephone redemption orders for same day wire transfer, which will be the earlier of: (a) the times set forth in the prospectus for normal trading days or (b) such earlier times that the fund determines

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based on the criteria described above. Please call (877) 237-1131 or visit our Web site at dws.com (the Web site does not form part of this prospectus) for additional information about whether the fund will be open for business on a particular day. Information concerning the intention of the fund to be open for a Limited Trading Period will be available at least one business day prior to the applicable day that the Exchange is closed or is closing early in the case of scheduled closings and as soon as practical in the case of unscheduled closings.

Other Rights We Reserve

You should be aware that we may do any of the following:

◾

withdraw or suspend the offering of shares at any time

◾

withhold a portion of your distributions and redemption proceeds if we have been notified by the Internal Revenue Service that you are subject to backup withholding, if you fail to provide us with the correct taxpayer ID number and certain certifications, including certification that you are not subject to backup withholding, or if you are otherwise subject to withholding

◾

reject an account application if you don’t provide any required or requested identifying information, or for any other reason

◾

without prior notice; refuse, cancel, limit or rescind any purchase or exchange order freeze any account (meaning you will not be able to purchase fund shares in your account); suspend account services; and/or involuntarily redeem and close your account if we think that the account is being used for fraudulent or illegal purposes; one or more of these actions will be taken when, at our sole discretion, they are deemed to be in the fund’s best interests or when the fund is requested or compelled to do so by governmental authority or by applicable law

◾

close and liquidate your account if we are unable to verify your identity, or for other reasons; if we decide to close your account, your fund shares will be redeemed at the net asset value per share next calculated after we determine to close your account (less applicable redemption fee, if any); you may recognize a gain or loss on the redemption of your fund shares and you may incur a tax liability

◾

pay you for shares you sell by “redeeming in kind,” that is, by giving you securities (which are subject to market risk until sold, may incur taxes and typically will involve brokerage costs for you to liquidate) rather than cash; the fund generally won’t make a redemption in kind unless your requests over a 90-day period total more than $250,000 or 1% of the value of the fund’s net assets, whichever is less

◾

change, add or withdraw various services, fees and account policies (for example, we may adjust the fund’s investment minimums at any time)

Financial Intermediary Support Payments

The Advisor, the Distributor and/or their affiliates may pay additional compensation, out of their own assets and not as an additional charge to the fund, to selected affiliated and unaffiliated brokers, dealers, participating insurance companies or other financial intermediaries (“financial representatives”) in connection with the sale and/or distribution of fund shares or the retention and/or servicing of fund investors and fund shares (“revenue sharing”). Such revenue sharing payments are in addition to any distribution or service fees payable under any Rule 12b-1 or service plan of the fund, any recordkeeping/sub-transfer agency/networking fees payable by the fund (generally through the Distributor or an affiliate) and/or the Distributor or Advisor to certain financial representatives for performing such services and any sales charges, commissions, non-cash compensation arrangements expressly permitted under applicable rules of the Financial Industry Regulatory Authority or other concessions described in the fee table or elsewhere in this prospectus or the Statement of Additional Information as payable to all financial representatives. For example, the Advisor, the Distributor and/or their affiliates may, using their legitimate profits, compensate financial representatives for providing the fund with “shelf space” or access to a third party platform (including the costs associated with establishing and maintaining the fund on such platform) or fund offering list or other marketing programs, including, without limitation, inclusion of the fund on preferred or recommended sales lists, mutual fund “supermarket” platforms and other formal sales programs; granting the Distributor access to the financial representative’s sales force; granting the Distributor access to the financial representative’s conferences and meetings; assistance in training and educating the financial representative’s personnel; and obtaining other forms of marketing support. In addition, revenue sharing payments may consist of the Distributor’s and/or its affiliates’ payment or reimbursement of ticket charges that would otherwise be assessed by a financial representative on an investor’s fund transactions.

The level of revenue sharing payments made to financial representatives may be a fixed fee or based upon one or more of the following factors: gross sales, current assets and/or number of accounts of the fund attributable to the financial representative, the particular fund or fund type or other measures as agreed to by the Advisor, the Distributor and/or their affiliates and the financial representatives or any combination thereof. The amount of these payments is determined at the discretion of the Advisor, the Distributor and/or their affiliates from time to time, may be substantial, and may be different for different financial representatives based on, for example, the nature of the services provided by the financial representative.

Prospectus December 1, 2023

Investing in the Fund

The Advisor, the Distributor and/or their affiliates currently make revenue sharing payments from their own assets in connection with the sale and/or distribution of DWS fund shares or the retention and/or servicing of investors to financial representatives in amounts that generally range from 0.01% up to 0.52% of assets of the fund serviced and maintained by the financial representative, 0.05% to 0.25% of sales of the fund attributable to the financial representative, a flat fee of up to $95,000, or any combination thereof. These amounts are annual figures typically paid on a quarterly basis and are subject to change at the discretion of the Advisor, the Distributor and/or their affiliates. Receipt of, or the prospect of receiving, this additional compensation may influence your financial representative’s recommendation of the fund or of any particular share class of the fund. You should review your financial representative’s compensation disclosure and/or talk to your financial representative to obtain more information on how this compensation may have influenced your financial representative’s recommendation of the fund. Additional information regarding these revenue sharing payments is included in the fund’s Statement of Additional Information, which is available to you on request at no charge (see the back cover of this prospectus for more information on how to request a copy of the Statement of Additional Information).

The Advisor, the Distributor and/or their affiliates may also make such revenue sharing payments to financial representatives under the terms discussed above in connection with the distribution of both DWS funds and non-DWS funds by financial representatives to retirement plans that obtain recordkeeping services from ADP, Inc. or to 403(b) plans that obtain recordkeeping services from Ascensus, Inc. on the DWS-branded retirement plan platform (the “Platform”). The level of revenue sharing payments is based upon sales of both the DWS funds and the non-DWS funds by the financial representative on the Platform or current assets of both the DWS funds and the non-DWS funds serviced and maintained by the financial representative on the Platform.

It is likely that broker-dealers that execute portfolio transactions for the fund will include firms that also sell shares of the DWS funds to their customers. However, the Advisor will not consider sales of DWS fund shares as a factor in the selection of broker-dealers to execute portfolio transactions for the DWS funds. Accordingly, the Advisor has implemented policies and procedures reasonably designed to prevent its traders from considering sales of DWS fund shares as a factor in the selection of broker-dealers to execute portfolio transactions for the fund. In addition, the Advisor, the Distributor and/or their affiliates will not use fund brokerage to pay for their obligation to provide additional compensation to financial representatives as described above.

Understanding Distributions and Taxes

The fund intends to distribute to its shareholders virtually all of its net earnings. The fund can earn money in two ways: by receiving interest, dividends or other income from securities it holds and by selling securities for more than it paid for them. (The fund’s earnings are separate from any gains or losses stemming from your own purchase and sale of shares.) The fund may not always pay a dividend or distribution for a given period.

The fund's income dividends are declared daily and paid monthly to shareholders. The fund may take into account capital gains and losses (other than net long-term capital gains) in its daily dividend declarations. The fund may make additional distributions for tax purposes, if necessary.

Dividends declared and payable to shareholders of record in the last quarter of a given calendar year are treated for federal income tax purposes as if they were received by shareholders and paid by the fund on December 31 of that year, if such dividends are actually paid in January of the following year.

For federal income tax purposes, income and capital gain dividends are generally taxable to shareholders. However, dividends, regardless of character, received by retirement plans qualifying for tax exemption under federal income tax laws generally will not be currently taxable.

You can choose how to receive your dividends, whether ordinary or capital gain dividends, and other distributions. You can have them all automatically reinvested in fund shares (at NAV), all deposited directly to your bank account or all sent to you by check, have one type reinvested and the other sent to you by check or have them invested in a different fund. Tell us your preference on your application. If you don’t indicate a preference, your dividends and distributions will all be reinvested. You will receive any unpaid dividends upon redeeming your entire account, unless you elect to receive unpaid dividends on the next monthly dividend payment date.

Dividends and distributions are treated the same for federal income tax purposes whether you receive them in cash or reinvest them in additional shares.

Because the fund seeks to maintain a stable share price, you are unlikely to have capital gains or losses when you sell fund shares.

For federal income tax purposes, distributions of net investment income (including net short-term capital gain) are taxable as ordinary income. The fund does not expect to make distributions that are eligible for taxation as long-term capital gains or as qualified dividend income.

However, there can be no assurance that the fund will be able to maintain a stable share price. If the fund is not able to maintain a stable share price or your basis in your fund shares differs from the amount received for the shares

Prospectus December 1, 2023

Investing in the Fund

when the shares are sold, the sale may result in a taxable gain or loss for federal income tax purposes. Unless you elect the simplified NAV method of accounting (discussed below), you will generally recognize gain or loss equal to the difference between the amount realized on the sale and your basis in your shares that were sold. In general, any gain or loss realized upon a taxable disposition of shares will be treated for federal income tax purposes as long-term capital gain or loss if the shares have been held for more than twelve months. Otherwise, the gain or loss on the taxable disposition of shares of the fund will generally be treated for federal income tax purposes as short-term capital gain or loss. Capital losses may be subject to limitations on their use by a shareholder. For federal income tax purposes, an exchange is treated the same as a sale.

If you elect to adopt the simplified NAV method of accounting, rather than computing gain or loss on every taxable disposition of fund shares as described above, you would recognize gain or loss based on the aggregate value of your fund shares during the computation period. Your gain or loss would generally equal (i) the aggregate fair market value of your shares in the fund at the end of the computation period, (ii) minus the aggregate fair market value of your shares at the end of the prior computation period, (iii) minus your “net investment” in the fund for the computation period. Your net investment is the aggregate cost of fund shares purchased during the computation period (including reinvested dividends) minus the aggregate amount received in taxable redemptions of fund shares during the same period. The computation period may be your taxable year or a shorter period, as long as all computation periods contain days from only one taxable year and every day during the taxable year falls within one and only one computation period. Any capital gain or loss realized under the NAV method will be a short-term capital gain or loss. Please consult your own tax advisor to determine if the NAV method is appropriate for your individual circumstances.

Effect of Liquidity Fees. A liquidity fee imposed by the fund will reduce the amount you will receive upon the redemption of your shares and will decrease the amount of any capital gain or increase the amount of any capital loss you will recognize from such redemption. There is some degree of uncertainty with respect to the tax treatment of liquidity fees received by money market funds. Such tax treatment may be the subject of future guidance issued by the Internal Revenue Service. If the fund receives liquidity fees, it will consider the appropriate tax treatment of such fees to the fund at that time.

Certain of a fund's investment practices are subject to special and complex federal income tax provisions, including rules relating to short sales, constructive sales, “straddle” and “wash sale” transactions and section 1256 contracts. For more information, see “Taxes” in the Statement of Additional Information.

Your fund will send you detailed federal income tax information early each year. These statements tell you the amount and the federal income tax classification of any dividends or distributions you received.

A 3.8% Medicare contribution tax is imposed on the “net investment income” of individuals, estates and trusts to the extent their income exceeds certain threshold amounts. For this purpose, net investment income generally includes dividends that are taxable for federal income tax purposes and net gains recognized on the sale, redemption or exchange of fund shares.

If the fund's distributions exceed its current and accumulated earnings and profits, the excess will be treated for federal income tax purposes as a return of capital to the extent of your basis in your shares and thereafter as a capital gain. A return of capital distribution reduces the basis of your shares. As a result, even though the fund seeks to maintain a stable share price, you may recognize a capital gain when you sell your shares if you have received a return of capital distribution.

Because each shareholder’s tax situation is unique, ask your tax professional about the tax consequences of your investment, including any state and local tax consequences.

The above discussion summarizes certain federal income tax consequences for shareholders who are US persons. If you are a non-US person, please consult your own tax advisor with respect to the US and foreign tax consequences to you of an investment in the fund. For more information, see “Taxes” in the Statement of Additional Information.

Prospectus December 1, 2023

Investing in the Fund

Financial Highlights

The financial highlights are designed to help you understand recent financial performance. The figures in the first part of the table are for a single share. The total return figures represent the percentage that an investor in the fund would have earned (or lost), assuming all dividends and distributions were reinvested. This information has

been derived from the financial statements audited by Ernst & Young LLP, an independent registered public accounting firm, whose report, along with the fund’s financial statements, is included in the fund’s annual report (see “Shareholder reports” on the back cover).

DWS Money Market Prime Series — DWS Cash Investment Trust Class A
	Years Ended July 31,
	2023	2022	2021	2020	2019
Selected Per Share Data
Net asset value, beginning of period	$1.00	$1.00	$1.00	$1.00	$1.00
Income (loss) from investment operations:
Net investment income	.034	.001	.000 *	.008	.017
Net realized gain (loss)	.000 *	.000 *	.000 *	(.000 )*	.000 *
Total from investment operations	.034	.001	.000 *	.008	.017
Less distributions from:
Net investment income	(.035 )	(.001 )	(.000 )*	(.009 )	(.017 )
Net asset value, end of period	$1.00	$1.00	$1.00	$1.00	$1.00
Total Return (%)	3.54	.10 a	.01 a	.90 a	1.71
Ratios to Average Net Assets and Supplemental Data
Net assets, end of period ($ millions)	36	37	36	38	31
Ratio of expenses before expense reductions (%)	.84	.83	.82	.82	.82
Ratio of expenses after expense reductions (%)	.84	.36	.24	.75	.82
Ratio of net investment income (%)	3.40	.11	.01	.78	1.69

a	Total return would have been lower had certain expenses not been reduced.
*	Amount is less than $.0005.

Prospectus December 1, 2023

Financial Highlights

Appendix A

Hypothetical Expense Summary

Using the annual fund operating expense ratios presented in the fee tables in the fund’s prospectus, the Hypothetical Expense Summary shows the estimated fees and expenses, in actual dollars, that would be charged on a hypothetical investment of $10,000 in the fund held for the next 10 years and the impact of such fees and expenses on fund returns for each year and cumulatively, assuming a 5% return for each year. The historical rate of return for the fund may be higher or lower than 5% and, for money market funds, is typically less than 5%. The tables also assume that all dividends and distributions are reinvested. The annual fund expense ratios shown are net of any contractual fee waivers or expense reimbursements, if any, for the period of the contractual commitment. The tables reflect the maximum initial sales charge, if any, but do not reflect any contingent deferred sales charge, if any, which may be payable upon redemption. If contingent deferred sales charges were shown, the “Hypothetical Year-End Balance After Fees and Expenses” amounts

shown would be lower and the “Annual Fees and Expenses” amounts shown would be higher. Also, please note that if you are investing through a third party provider, that provider may have fees and expenses separate from those of the fund that are not reflected here. Mutual fund fees and expenses fluctuate over time and actual expenses may be higher or lower than those shown.

Class C shares generally convert automatically to Class A shares after 8 years. The information presented in the Hypothetical Expense Summary for Class C reflects the conversion of Class C shares to Class A shares after 8 years. See “Class C Shares” in the “Choosing a Share Class” section of the prospectus for more information. The Hypothetical Expense Summary should not be used or construed as an offer to sell, a solicitation of an offer to buy or a recommendation or endorsement of any specific mutual fund. You should carefully review the fund’s prospectus to consider the investment objective, risks, expenses and charges of the fund prior to investing.

DWS Money Market Prime Series — DWS Cash InvestmentTrust Class A

	Maximum Sales Charge: 0.00%	Initial Hypothetical Investment: $10,000		Assumed Rate of Return: 5%
Year	Cumulative Return Before Fees & Expenses	Annual Fund Expense Ratios	Cumulative Return After Fees & Expenses	Hypothetical Year-End Balance After Fees & Expenses	Annual Fees & Expenses
1	5.00%	0.84%	4.16%	$10,416.00	$85.75
2	10.25%	0.84%	8.49%	$10,849.31	$89.31
3	15.76%	0.84%	13.01%	$11,300.64	$93.03
4	21.55%	0.84%	17.71%	$11,770.74	$96.90
5	27.63%	0.84%	22.60%	$12,260.41	$100.93
6	34.01%	0.84%	27.70%	$12,770.44	$105.13
7	40.71%	0.84%	33.02%	$13,301.69	$109.50
8	47.75%	0.84%	38.55%	$13,855.04	$114.06
9	55.13%	0.84%	44.31%	$14,431.41	$118.80
10	62.89%	0.84%	50.32%	$15,031.76	$123.75
Total					$1,037.16

Prospectus December 1, 2023

Appendix A

DWS Money Market Prime Series — DWS Cash InvestmentTrust Class C

	Maximum Sales Charge: 0.00%	Initial Hypothetical Investment: $10,000		Assumed Rate of Return: 5%
Year	Cumulative Return Before Fees & Expenses	Annual Fund Expense Ratios	Cumulative Return After Fees & Expenses	Hypothetical Year-End Balance After Fees & Expenses	Annual Fees & Expenses
1	5.00%	1.57%	3.43%	$10,343.00	$159.69
2	10.25%	1.57%	6.98%	$10,697.76	$165.17
3	15.76%	1.57%	10.65%	$11,064.70	$170.84
4	21.55%	1.57%	14.44%	$11,444.22	$176.69
5	27.63%	1.57%	18.37%	$11,836.75	$182.76
6	34.01%	1.57%	22.43%	$12,242.75	$189.02
7	40.71%	1.57%	26.63%	$12,662.68	$195.51
8	47.75%	1.57%	30.97%	$13,097.01	$202.21
9	55.13%	0.84%	36.42%	$13,641.85	$112.30
10	62.89%	0.84%	42.09%	$14,209.35	$116.98
Total					$1,671.17

DWS Money Market Prime Series — DWS Cash InvestmentTrust Class s

	Maximum Sales Charge: 0.00%	Initial Hypothetical Investment: $10,000		Assumed Rate of Return: 5%
Year	Cumulative Return Before Fees & Expenses	Annual Fund Expense Ratios	Cumulative Return After Fees & Expenses	Hypothetical Year-End Balance After Fees & Expenses	Annual Fees & Expenses
1	5.00%	0.57%	4.43%	$10,443.00	$58.26
2	10.25%	0.63%	8.99%	$10,899.36	$67.23
3	15.76%	0.63%	13.76%	$11,375.66	$70.17
4	21.55%	0.63%	18.73%	$11,872.78	$73.23
5	27.63%	0.63%	23.92%	$12,391.62	$76.43
6	34.01%	0.63%	29.33%	$12,933.13	$79.77
7	40.71%	0.63%	34.98%	$13,498.31	$83.26
8	47.75%	0.63%	40.88%	$14,088.19	$86.90
9	55.13%	0.63%	47.04%	$14,703.84	$90.69
10	62.89%	0.63%	53.46%	$15,346.40	$94.66
Total					$780.60

Prospectus December 1, 2023

Appendix A

Appendix B

Sales Charge Waivers and Discounts Available Through Intermediaries

The availability of certain sales charge waivers and discounts may depend on whether you purchase your shares directly from the fund or through a financial intermediary. Intermediaries may have different policies and procedures regarding the availability of front-end sales charge waivers or contingent deferred (back-end) sales charge (“CDSC”) waivers. For waivers and discounts not available through a particular intermediary, you will have to purchase fund shares directly from the fund or through another intermediary. The financial intermediary sales charge waivers, discounts and policies disclosed in this Appendix may vary from those disclosed elsewhere in the fund’s prospectus or SAI. In all instances, it is your responsibility to notify the fund or your financial intermediary at the time of purchase of any relationship or other facts qualifying you for sales charge waivers or discounts.

The sales charge waivers, discounts and policies described below are applied by the identified financial intermediaries. Please contact the applicable intermediary with any questions regarding how the intermediary applies its waivers, discounts and policies and to ensure that you understand what steps you must take to qualify for any available waivers or discounts.

For those fund share classes subject to sales charges and for which sales charge waivers and/or discounts are available, information for those financial intermediaries offering their own sales charge waivers and/or discounts is set forth below.

Merrill Lynch Class A and C Sales Charge Waivers and Discounts

Shareholders purchasing fund shares through a Merrill Lynch platform or account will be eligible only for the following load waivers (front-end sales charge waivers and contingent deferred, or back-end, sales charge waivers) and discounts, which may differ from those disclosed elsewhere in the fund’s prospectus or SAI.

Front-end Sales Load Waivers on Class A Shares Available at Merrill Lynch

◾

Employer-sponsored retirement, deferred compensation and employee benefit plans (including health savings accounts) and trusts used to fund those plans, provided that the shares are not held in a commission-based brokerage account and shares are held for the benefit of the plan.

◾

Shares purchased by a 529 Plan (does not include 529 Plan units or 529-specific share classes or equivalents).

◾

Shares purchased through a Merrill Lynch affiliated investment advisory program.

◾

Shares exchanged due to the holdings moving from a Merrill Lynch affiliated investment advisory program to a Merrill Lynch brokerage (non-advisory) account pursuant to Merrill Lynch’s policies relating to sales load discounts and waivers.

◾

Shares purchased by third party investment advisors on behalf of their advisory clients through Merrill Lynch’s platform.

◾

Shares of funds purchased through the Merrill Edge Self-Directed platform (if applicable).

◾

Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family).

◾

Shares exchanged from Class C (i.e., level-load) shares of the same fund pursuant to Merrill Lynch’s policies relating to sales load discounts and waivers.

◾

Employees and registered representatives of Merrill Lynch or its affiliates and their family members.

◾

Directors or Trustees of the fund, and employees of the fund’s investment adviser or any of its affiliates, as described in this prospectus.

◾

Eligible shares purchased from the proceeds of redemptions within the same fund family, provided (1) the repurchase occurs within 90 days following the redemption, (2) the redemption and purchase occur in the same account, and (3) redeemed shares were subject to a front-end or deferred sales load (known as Rights of Reinstatement). Automated transactions (i.e., systematic purchases and withdrawals) and purchases made after shares are automatically sold to pay Merrill Lynch’s account maintenance fees are not eligible for reinstatement.

Prospectus December 1, 2023

Appendix B

CDSC Waivers on Class A and C Shares Available at Merrill Lynch

◾

Death or disability of the shareholder.

◾

Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus.

◾

Return of excess contributions from an IRA Account.

◾

Shares sold as part of a required minimum distribution for IRA and retirement accounts pursuant to the Internal Revenue Code.

◾

Shares sold to pay Merrill Lynch fees but only if the transaction is initiated by Merrill Lynch.

◾

Shares acquired through a right of reinstatement.

◾

Shares held in retirement brokerage accounts, that are exchanged for a lower cost share class due to transfer to certain fee based accounts or platforms (applicable to A and C shares only).

◾

Shares received through an exchange due to the holdings moving from a Merrill Lynch affiliated investment advisory program to a Merrill Lynch brokerage (non-advisory) account pursuant to Merrill Lynch’s policies relating to sales load discounts and waivers.

Front-end Load Discounts Available at Merrill Lynch: Breakpoints, Rights of Accumulation & Letters of Intent

◾

Breakpoints as described in this prospectus.

◾

Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts as described in the Fund’s prospectus will be automatically calculated based on the aggregated holding of fund family assets held by accounts (including 529 program holdings, where applicable) within the purchaser’s household at Merrill Lynch. Eligible fund family assets not held at Merrill Lynch may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets.

◾

Letters of Intent (LOI) which allow for breakpoint discounts based on anticipated purchases within a fund family, through Merrill Lynch, over a 13-month period of time (if applicable).

Class A Waivers Applicable to Purchase Through LPL Financial

For those accounts where LPL Financial is listed as the broker dealer, the Class A sales charge waivers listed under “Class A NAV Sales” in the “Choosing a Share Class” sub-section of the “Investing in the Funds” section of the prospectus apply, except that the Class A sales charge waiver number (12) (relating to purchases of Class A shares by employer-sponsored retirement plans) is replaced with the following waiver:

Class A shares may be purchased without a sales charge by group retirement plans, which are employer-sponsored retirement plans, deferred compensation plans, employee benefit plans (including health savings accounts) and trusts used to fund those plans.

To satisfy eligibility requirements, the plan must be a group retirement plan (more than one participant), the shares cannot be held in a commission-based brokerage account at LPL Financial, and

◾

the shares must be held at a plan level or

◾

the shares must be held through an omnibus account of a retirement plan record-keeper.

Group retirement plans include group employer-sponsored 401(k) plans, employer-sponsored 457 plans, employer-sponsored 403(b) plans, profit-sharing and money purchase pension plans, defined benefit plans, retiree health benefit plans, and non-qualified deferred compensation plans. Traditional IRAs, Roth IRAs, Coverdell Education Savings Accounts, SEPs, SARSEPs, SIMPLE IRAs, KEOGHs, individual 401(k) or individual 403(b) plans do not qualify under this waiver.

LPL Financial is responsible for the implementation of this waiver on its platform.

Ameriprise Financial Class A Front-End Sales Charge Waivers

The following information applies to Class A shares purchases if you have an account with or otherwise purchase fund shares through Ameriprise Financial:

Effective January 15, 2021, shareholders purchasing fund shares through an Ameriprise Financial brokerage account are eligible for the following Class A front-end sales charge waivers, which may differ from those disclosed elsewhere in this fund’s prospectus or SAI:

◾

Employer-sponsored retirement plans (e.g., 401(k) plans, 457 plans, employer-sponsored 403(b) plans, profit sharing and money purchase pension plans and defined benefit plans). For purposes of this provision, employer-sponsored retirement plans do not include SEP IRAs, Simple IRAs or SAR-SEPs.

◾

Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the same fund family).

Prospectus December 1, 2023

Appendix B

◾

Shares exchanged from Class C shares of the same fund in the month of or following the 7-year anniversary of the purchase date. To the extent that this prospectus elsewhere provides for a waiver with respect to exchanges of Class C shares or conversion of Class C shares following a shorter holding period, that waiver will apply.

◾

Employees and registered representatives of Ameriprise Financial or its affiliates and their immediate family members.

◾

Shares purchased by or through qualified accounts (including IRAs, Coverdell Education Savings Accounts, 401(k)s, 403(b) TSCAs subject to ERISA and defined benefit plans) that are held by a covered family member, defined as an Ameriprise financial advisor and/or the advisor’s spouse, advisor’s lineal ascendant (mother, father, grandmother, grandfather, great grandmother, great grandfather), advisor’s lineal descendant (son, step-son, daughter, step-daughter, grandson, granddaughter, great grandson, great granddaughter) or any spouse of a covered family member who is a lineal descendant.

◾

Shares purchased from the proceeds of redemptions within the same fund family, provided (i) the repurchase occurs within 90 days following the redemption, (ii) the redemption and purchase occur in the same account, and (iii) redeemed shares were subject to a front-end or deferred sales load (i.e., Rights of Reinstatement).

Morgan Stanley Wealth Management Class A Front-End Sales Charge Waivers

Effective July 1, 2018, fund shares purchased through a Morgan Stanley Wealth Management transactional brokerage account will be eligible only for the following front-end sales charge waivers with respect to Class A shares, which may differ from, and may be more limited than, those disclosed elsewhere in this fund’s prospectus or SAI.

◾

Shares purchased by employer-sponsored retirement plans (e.g., 401(k) plans, 457 plans, employer-sponsored 403(b) plans, profit sharing and money purchase pension plans and defined benefit plans). For purposes of this provision, employer-sponsored retirement plans do not include SEP IRAs, Simple IRAs, SAR-SEPs or Keogh plans.

◾

Shares purchased by Morgan Stanley employee and employee-related accounts according to Morgan Stanley’s account linking rules.

◾

Shares purchased through reinvestment of dividends and capital gains distributions when purchasing shares of the same fund.

◾

Shares purchased through a Morgan Stanley self-directed brokerage account.

◾

Class C (i.e., level-load) shares that are no longer subject to a contingent deferred sales charge and are converted to Class A shares of the same fund pursuant to Morgan Stanley Wealth Management’s share class conversion program.

◾

Raymond James & Associates, Inc., Raymond James Financial Services, Inc. & Each Entity’s Affiliates (“Raymond James”)

Shareholders purchasing fund shares through a Raymond James platform or account, or through an introducing broker-dealer or independent registered investment adviser for which Raymond James provides trade execution, clearance, and/or custody services, will be eligible only for the following load waivers (front-end sales charge waivers and contingent deferred, or back-end, sales charge waivers) and discounts, which may differ from those disclosed elsewhere in the fund’s prospectus or SAI.

Front-end Sales Load Waivers on Class A Shares Available at Raymond James

◾

Shares purchased in an investment advisory program.

◾

Shares purchased within the same fund family through a systematic reinvestment of capital gains and dividend distributions.

◾

Employees and registered representatives of Raymond James or its affiliates and their family members as designated by Raymond James.

◾

A shareholder in the fund’s Class C shares will have their shares converted by Raymond James at net asset value to Class A shares (or the appropriate share class) of the fund if the shares are no longer subject to a CDSC and the conversion is in line with the policies and procedures of Raymond James.

CDSC Waivers on Class A and C Shares Available at Raymond James

◾

Death or disability of the shareholder.

◾

Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus.

◾

Return of excess contributions from an IRA Account.

Prospectus December 1, 2023

Appendix B

◾

Shares sold as part of a required minimum distribution for IRA and retirement accounts due to the shareholder reaching the qualified age based on applicable IRS regulations as described in the fund’s prospectus.

◾

Shares sold to pay Raymond James fees but only if the transaction is initiated by Raymond James.

◾

Shares acquired through a right of reinstatement.

Front-end Load Discounts Available at Raymond James: Breakpoints, Rights of Accumulation, and/or Letters of Intent

◾

Breakpoints as described in this prospectus.

◾

Rights of accumulation which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Raymond James. Eligible fund family assets not held at Raymond James may be included in the calculation of rights of accumulation only if the shareholder notifies his or her financial advisor about such assets.

◾

Letters of intent which allow for breakpoint discounts based on anticipated purchases within a fund family, over a 13-month time period. Eligible fund family assets not held at Raymond James may be included in the calculation of letters of intent only if the shareholder notifies his or her financial advisor about such assets.

JANNEY MONTGOMERY SCOTT LLC CLASS A AND C SALES CHARGE WAIVERS AND DISCOUNTS

Effective May 1, 2020, if you purchase fund shares through a Janney Montgomery Scott LLC (“Janney”) brokerage account, you will be eligible only for the following load waivers (front-end sales charge waivers and contingent deferred sales charge (“CDSC”), or back-end sales charge, waivers) and discounts, which may differ from those disclosed elsewhere in the fund’s prospectus or SAI.

Front-end sales charge* waivers on Class A shares available at Janney

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Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family).

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Shares purchased by employees and registered representatives of Janney or its affiliates and their family members as designated by Janney.

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Shares purchased from the proceeds of redemptions within the same fund family, provided (i) the repurchase occurs within ninety (90) days following the redemption, (ii) the redemption and purchase occur in the same account, and (iii) redeemed shares were subject to a front-end or deferred sales load (i.e., right of reinstatement).

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Shares acquired through a right of reinstatement.

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Class C shares that are no longer subject to a contingent deferred sales charge and are converted by Janney at net asset value to Class A shares of the same fund pursuant to Janney’s policies and procedures.

CDSC waivers on Class A and C shares available at Janney

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Shares sold upon the death or disability of the shareholder.

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Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus.

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Shares purchased in connection with a return of excess contributions from an IRA account.

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Shares sold as part of a required minimum distribution for IRA and other retirement accounts due to the shareholder reaching age 70½ as described in the fund’s prospectus.

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Shares sold to pay Janney fees but only if the transaction is initiated by Janney.

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Shares acquired through a right of reinstatement.

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Shares exchanged into the same share class of a different fund.

Front-end sales charge* discounts available at Janney: breakpoints, rights of accumulation, and/or letters of intent

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Breakpoints as described in the fund’s prospectus.

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Rights of accumulation (“ROA”), which entitle shareholders to breakpoint discounts, will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Janney. Eligible fund family assets not held at Janney may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets.

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Letters of intent which allow for breakpoint discounts based on anticipated purchases within a fund family, over a 13-month time period. Eligible fund family assets not held at Janney may be included in the calculation of letters of intent only if the shareholder notifies his or her financial advisor about such assets.

*Also referred to as an “initial sales charge.”

Prospectus December 1, 2023

Appendix B

EDWARD D. JONES & CO., L.P. (“EDWARD JONES”) – REDUCTIONS IN SALES CHARGES, SALES CHARGE WAIVERS, AND OTHER IMPORTANT POLICIES

Effective on or after March 1, 2021, the following information supersedes prior information with respect to transactions and positions held in fund shares through an Edward Jones system. Clients of Edward Jones (also referred to as “shareholders”) purchasing fund shares on the Edward Jones commission and fee-based platforms are eligible only for the following sales charge discounts and waivers, which can differ from discounts and waivers described elsewhere in the mutual fund prospectus or statement of additional information (“SAI”) or through another broker-dealer. In all instances, it is the shareholder’s responsibility to inform Edward Jones at the time of purchase of any relationship, holdings of DWS Funds, or other facts qualifying the purchaser for discounts or waivers. Edward Jones can ask for documentation of such circumstance. Shareholders should contact Edward Jones if they have questions regarding their eligibility for these discounts and waivers.

Front-end Sales Charge Discounts on Class A Shares Available at Edward Jones: Breakpoints, Rights of Accumulation & Letters of Intent

Breakpoints

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Breakpoint pricing, otherwise known as volume pricing, at dollar thresholds as described in the prospectus.

Rights of Accumulation (“ROA”)

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The applicable sales charge on a purchase of Class A shares is determined by taking into account all share classes (except certain money market funds and any assets held in group retirement plans) of DWS Funds held by the shareholder or in an account grouped by Edward Jones with other accounts for the purpose of providing certain pricing considerations (“pricing groups”). If grouping assets as a shareholder, this includes all share classes held on the Edward Jones platform and/or held on another platform. The inclusion of eligible fund family assets in the ROA calculation is dependent on the shareholder notifying Edward Jones of such assets at the time of calculation. Money market funds are included only if such shares were sold with a sales charge at the time of purchase or acquired in exchange for shares purchased with a sales charge.

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The employer maintaining a SEP IRA plan and/or SIMPLE IRA plan may elect to establish or change ROA for the IRA accounts associated with the plan to a plan-level grouping as opposed to including all share classes at a shareholder or pricing group level.

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ROA is determined by calculating the higher of cost minus redemptions or market value (current shares x NAV).

Letter of Intent (“LOI”)

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Through a LOI, shareholders can receive the sales charge and breakpoint discounts for purchases shareholders intend to make over a 13-month period from the date Edward Jones receives the LOI. The LOI is determined by calculating the higher of cost or market value of qualifying holdings at LOI initiation in combination with the value that the shareholder intends to buy over a 13-month period to calculate the front-end sales charge and any breakpoint discounts. Each purchase the shareholder makes during that 13-month period will receive the sales charge and breakpoint discount that applies to the total amount. The inclusion of eligible fund family assets in the LOI calculation is dependent on the shareholder notifying Edward Jones of such assets at the time of calculation. Purchases made before the LOI is received by Edward Jones are not adjusted under the LOI and will not reduce the sales charge previously paid. Sales charges will be adjusted if LOI is not met.

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If the employer maintaining a SEP IRA plan and/or SIMPLE IRA plan has elected to establish or change ROA for the IRA accounts associated with the plan to a plan-level grouping, LOIs will also be at the plan-level and may only be established by the employer.

Front-end Sales Charge Waivers on Class A Shares Available at Edward Jones

Class A front-end sales charges are waived for the following shareholders and in the following situations:

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Associates of Edward Jones and its affiliates and their family members who are in the same pricing group (as determined by Edward Jones under its policies and procedures) as the associate. This waiver will continue for the remainder of the associate’s life if the associate retires from Edward Jones in good-standing and remains in good standing pursuant to Edward Jones' policies and procedures.

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Shares purchased in an Edward Jones fee-based program.

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Shares purchased through reinvestment of capital gains distributions and dividend reinvestment.

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Shares purchased from the proceeds of redeemed shares of the same fund family so long as the following conditions are met: (i) the proceeds are from the sale of shares within 60 days of the purchase; and (ii) the sale and purchase are made in the same share class and the same account or the purchase is made in an individual retirement account with proceeds from liquidations in a non-retirement account.

Prospectus December 1, 2023

Appendix B

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Shares exchanged into Class A shares from another share class so long as the exchange is into the same fund and was initiated at the discretion of Edward Jones. Edward Jones is responsible for any remaining CDSC due to the fund company, if applicable. Any future purchases are subject to the applicable sales charge as disclosed in the prospectus.

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Exchanges from Class C shares to Class A shares of the same fund, generally, in the 84th month following the anniversary of the purchase date or earlier by and at the discretion of Edward Jones.

Contingent Deferred Sales Charge (“CDSC”) Waivers on Class A and C Shares Available at Edward Jones

If the shareholder purchases Class A or Class C shares that are subject to a CDSC and those shares are redeemed before the CDSC is expired, the shareholder is responsible to pay the CDSC except in the following conditions:

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The death or disability of the shareholder.

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Systematic withdrawals with up to 10% per year of the account value.

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Return of excess contributions from an Individual Retirement Account (IRA).

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Shares sold as part of a required minimum distribution for IRA and retirement accounts if the redemption is taken in or after the year the shareholder reaches the qualified age based on applicable IRA regulations.

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Shares sold to pay Edward Jones fees or costs in such cases where the transaction is initiated by Edward Jones.

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Shares exchanged in an Edward Jones fee-based program.

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Shares acquired through NAV reinstatement.

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Shares redeemed at the discretion of Edward Jones for Minimum Balances, as described below.

Other Important Information Regarding Transactions Through Edward Jones

Minimum Purchase Amounts for Class A and Class C Shares

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Initial purchase minimum: $250

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Subsequent purchase minimum: none

Minimum Balances

Edward Jones has the right to redeem at its discretion fund holdings with a balance of $250 or less. The following are examples of accounts that are not included in this policy:

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A fee-based account held on an Edward Jones platform.

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A 529 account held on an Edward Jones platform.

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An account with an active systematic investment plan or LOI.

Exchanging Share Classes

At any time it deems necessary, Edward Jones has the authority to exchange at NAV a shareholder’s holdings in a fund to Class A shares of the same fund.

OPPENHEIMER & CO. INC. CLASS A AND C SALES CHARGE WAIVERS AND DISCOUNTS

Effective on or about June 1, 2020, shareholders purchasing fund shares through an Oppenheimer & Co. Inc. (“OPCO”) platform or account are eligible only for the following load waivers (front-end sales charge waivers and contingent deferred, or back-end, sales charge (“CDSC”) waivers) and discounts, which may differ from those disclosed elsewhere in the fund’s prospectus or SAI.

Front-end Sales Load Waivers on Class A Shares Available at OPCO

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Shares purchased by or through a 529 Plan.

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Shares purchased through an OPCO affiliated investment advisory program.

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Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family).

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A shareholder in the fund’s Class C shares will have their shares converted by OPCO at net asset value to Class A shares (or the appropriate share class) of the same fund if the shares are no longer subject to a CDSC and the conversion is in line with the policies and procedures of OPCO.

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Employees and registered representatives of OPCO or its affiliates and their family members.

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Directors or Trustees of the fund, and employees of the fund’s investment adviser or any of its affiliates, as described in this prospectus.

Prospectus December 1, 2023

Appendix B

CDSC Waivers on Class A and C Shares Available at OPCO

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Death or disability of the shareholder.

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Shares sold as part of a systematic withdrawal plan as described in the Fund’s prospectus.

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Return of excess contributions from an IRA Account.

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Shares sold to pay OPCO fees but only if the transaction is initiated by OPCO.

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Shares acquired through a right of reinstatement.

Front-end Load Discounts Available at OPCO: Breakpoints, Rights of Accumulation & Letters of Intent

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Breakpoints as described in this prospectus.

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Rights of Accumulation (ROA) which entitle shareholders to breakpoint discounts will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at OPCO. Eligible fund family assets not held at OPCO may be included in the ROA calculation only if the shareholder notifies his or her financial advisor about such assets.

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Letters of Intent as described in this prospectus.

ROBERT W. BAIRD & CO. INC. – CLASS A AND C SALES CHARGE WAIVERS AND DISCOUNTS

Effective June 15, 2020, shareholders purchasing fund shares through a Robert W. Baird & Co. Inc. (“Baird”) platform or account will only be eligible for the following sales charge waivers (front-end sales charge waivers and CDSC waivers) and discounts, which may differ from those disclosed elsewhere in the fund’s prospectus or SAI.

Front-End Sales Charge Waivers on Class A Shares Available at Baird

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Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund.

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Shares purchased by employees and registered representatives of Baird or its affiliates and their family members as designated by Baird.

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Shares purchased from the proceeds of redemptions from another fund in the same fund family, provided (i) the repurchase occurs within 90 days following the redemption, (ii) the redemption and purchase occur in the same account, and (iii) redeemed shares were subject to a front-end or deferred sales charge (known as rights of reinstatement).

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Shareholders in a fund’s Class C Shares will have their shares converted by Baird at net asset value to Class A shares of the same fund if the shares are no longer subject to CDSC and the conversion is in line with the policies and procedures of Baird.

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Employer-sponsored retirement plans or charitable accounts in a transactional brokerage account at Baird, including 401(k) plans, 457 plans, employer-sponsored 403(b) plans, profit sharing and money purchase pension plans and defined benefit plans. For purposes of this provision, employer-sponsored retirement plans do not include SEP IRAs, Simple IRAs or SAR-SEPs.

CDSC Waivers on Class A and C Shares Available at Baird

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Shares sold due to death or disability of the shareholder.

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Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus.

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Shares bought due to returns of excess contributions from an IRA Account.

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Shares sold to pay Baird fees but only if the transaction is initiated by Baird.

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Shares acquired through a right of reinstatement.

Front-End Sales Charge Discounts Available at Baird: Breakpoints, Rights of Accumulations and/or Letters of Intent

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Breakpoints as described in the fund’s prospectus.

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Rights of accumulation (ROA), which entitle shareholders to breakpoint discounts, will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at Baird. Eligible fund family assets not held at Baird may be included in the rights of accumulation calculation only if the shareholder notifies his or her financial advisor about such assets.

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Letters of Intent (LOI), which allow for breakpoint discounts based on anticipated purchases through Baird within a fund family, over a 13-month period of time.

Waivers Specific to Stifel, Nicolaus & Company, Incorporated (“Stifel”)

Effective September 1, 2020, shareholders purchasing fund shares through a Stifel platform or account or who own shares for which Stifel or an affiliate is the broker-dealer of record are eligible for the following additional sales charge waiver.

Prospectus December 1, 2023

Appendix B

Front-end Sales Load Waiver on Class A Shares

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Class C shares that have been held for more than seven (7) years will be converted by Stifel at net asset value to Class A shares of the same fund pursuant to Stifel’s policies and procedures.

All other sales charge waivers and reductions described elsewhere in the fund’s prospectus or SAI still apply.

J.P. MORGAN SECURITIES LLC

Effective September 29, 2023, if you purchase or hold fund shares through an applicable J.P. Morgan Securities LLC brokerage account, you will be eligible for the following sales charge waivers (front-end sales charge waivers and contingent deferred sales charge (“CDSC”), or back-end sales charge, waivers), share class conversion policy and discounts, which may differ from those disclosed elsewhere in the fund’s prospectus or Statement of Additional Information.

Front-end sales charge waivers on Class A shares available at J.P. Morgan Securities LLC

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Shares exchanged from Class C (i.e. level-load) shares that are no longer subject to a CDSC and are exchanged into Class A shares of the same fund pursuant to J.P. Morgan Securities LLC’s share class exchange policy.

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Qualified employer-sponsored defined contribution and defined benefit retirement plans, nonqualified deferred compensation plans, other employee benefit plans and trusts used to fund those plans. For purposes of this provision, such plans do not include SEP IRAs, SIMPLE IRAs, SAR-SEPs or 501(c)(3) accounts.

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Shares of funds purchased through J.P. Morgan Securities LLC Self-Directed Investing accounts.

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Shares purchased through rights of reinstatement.

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Shares purchased through reinvestment of capital gains distributions and dividend reinvestment when purchasing shares of the same fund (but not any other fund within the fund family).

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Shares purchased by employees and registered representatives of J.P. Morgan Securities LLC or its affiliates and their spouse or financial dependent as defined by J.P. Morgan Securities LLC.

Class C to Class A share conversion

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A shareholder in the fund's Class C shares will have their shares converted by J.P. Morgan Securities LLC to Class A shares (or the appropriate share class) of the same fund if the shares are no longer subject to a CDSC and the conversion is consistent with J.P. Morgan Securities LLC's policies and procedures.

CDSC waivers on Class A and C shares available at J.P. Morgan Securities LLC

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Shares sold upon the death or disability of the shareholder.

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Shares sold as part of a systematic withdrawal plan as described in the fund’s prospectus.

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Shares purchased in connection with a return of excess contributions from an IRA account.

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Shares sold as part of a required minimum distribution for IRA and retirement accounts pursuant to the Internal Revenue Code.

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Shares acquired through a right of reinstatement.

Front-end load discounts available at J.P. Morgan Securities LLC: breakpoints, rights of accumulation & letters of intent

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Breakpoints as described in the fund’s prospectus.

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Rights of Accumulation (“ROA”), which entitle shareholders to breakpoint discounts as described in the fund’s prospectus, will be automatically calculated based on the aggregated holding of fund family assets held by accounts within the purchaser’s household at J.P. Morgan Securities LLC. Eligible fund family assets not held at J.P. Morgan Securities LLC (including 529 program holdings, where applicable) may be included in the ROA calculation only if the shareholder notifies their financial advisor about such assets.

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Letters of Intent, which allow for breakpoint discounts based on anticipated purchases within a fund family, through J.P. Morgan Securities LLC, over a 13-month period of time (if applicable).

Prospectus December 1, 2023

Appendix B

To Get More Information

Shareholder reports. Additional information about the fund’s investments is available in the fund’s annual and semi-annual reports to shareholders. In the annual report, you will find a discussion of the market conditions and investment strategies that significantly affected fund performance during its last fiscal year.

Statement of Additional Information (SAI). This tells you more about the fund’s features and policies, including additional risk information. The SAI is incorporated by reference into this document (meaning that it’s legally part of this prospectus).

For a free copy of any of these documents or to request other information about the fund, contact DWS at the telephone number or address listed below. SAIs and shareholder reports are also available through the DWS Web site at dws.com. These documents and other information about the fund are available from the EDGAR Database on the SEC’s Internet site at sec.gov. If you like, you may obtain copies of this information, after paying a duplicating fee, by e-mailing a request to [email protected].

In order to reduce the amount of mail you receive and to help reduce expenses, we generally send a single copy of any shareholder report and prospectus to each household. If you do not want the mailing of these documents to be combined with those for other members of your household, please contact your financial representative or call the telephone number provided.

Contact Information

DWS	PO Box 219151 Kansas City, MO 64121-9151 dws.com
	Shareholders: (800) 728-3337 Investment professionals: (800) 621-5027
Distributor	DWS Distributors, Inc. 222 South Riverside Plaza Chicago, IL 60606-5808 (800) 621-1148
SEC File Number	Deutsche DWS Money Funds DWS Money Market Prime Series 811-02527

(12/01/23) DCIT-1

DWS Money Market Prime Series
CLASS/TICKER	DWS CASH INVESTMENT TRUST CLASS A	(Class A) DOAXX
	DWS CASH INVESTMENT TRUST CLASS C	(Class C) DOCXX
	DWS CASH INVESTMENT TRUST CLASS S	(Class S) DOSXX