Schwab Prime Advantage Money Fund SWBXX

The fund is subject to risks, any of which could cause an investor to lose money. The fund's principal risks include:

Market Risk. Financial markets rise and fall in response to a variety of factors, sometimes rapidly and unpredictably. Markets may be impacted by economic, political, regulatory and other conditions, including economic sanctions, tariffs and other government actions. In addition, the occurrence of global events, such as war, terrorism, environmental disasters, natural disasters and epidemics, may also negatively affect the financial markets. These events could reduce consumer demand or economic output; result in market closures, changes in interest rates, inflation/deflation, travel restrictions or quarantines; and significantly adversely impact the economy. Governmental and quasi-governmental authorities and regulators throughout the world have in the past often responded to serious economic disruptions with a variety of significant fiscal and monetary policy changes which could have an unexpected impact on financial markets and the fund's investments. As with any investment whose performance is tied to these markets, the value of an investment in the fund will fluctuate, which means that an investor could lose money over short or long periods.

Investment 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 fee upon the sale of your shares. An investment in the fund is not a bank account and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund's sponsor is not required to reimburse the fund for losses, and you should not expect that the sponsor will provide financial support to the fund at any time, including during periods of market stress.

Retail Money Market Fund Risk. The fund is a "retail money market fund," as such term is defined or interpreted under the rules governing money market funds. A "retail money market fund" is a money market fund that has policies and procedures reasonably designed to limit all beneficial owners of the fund to natural persons. The fund may involuntarily redeem any investor who is not a natural person. The fund will provide advance notice of its intent to make any such involuntary redemption. Neither the fund nor the investment adviser will be responsible for any loss or tax liability in an investor's account resulting from such involuntary redemption. As a "retail money market fund," the fund is permitted to value its securities using the amortized cost method to seek to maintain a stable $1.00 share price. However, the fund may be subject to liquidity fees on fund redemptions if the fund's board or its delegate determines that the fee is in the best interests of the fund.

Interest Rate Risk. Interest rates rise and fall over time. As with any investment whose yield reflects current interest rates, the fund's yield will change over time. During periods when interest rates are low or there are negative interest rates, the fund's yield (and total return) also could be low or even negative. In addition, the fund may be unable to pay expenses out of fund assets or maintain a stable $1.00 share price. Also, a change in a central bank's monetary policy or economic conditions may result in a change in interest rates, which could have sudden and unpredictable effects on the markets. A sudden or unpredictable rise or decline in interest rates may cause volatility. Volatility in the market may decrease liquidity in the money market securities markets, making it more difficult for the fund to sell its money market investments at a time when the investment adviser might wish to sell such investments. Decreased market liquidity also may make it more difficult to value some or all of the fund's money market securities holdings.

Stable Net Asset Value Risk. If the fund or another money market fund fails to maintain a stable net asset value (or such perception exists in the market place), the fund could experience increased redemptions, which may adversely impact the fund's share price.

Repurchase Agreements Risk. When the fund enters into a repurchase agreement, the fund is exposed to the risk that the other party (i.e., the counterparty) will not fulfill its contractual obligation. In a repurchase agreement, there exists the risk that, when the fund buys a security from a counterparty that agrees to repurchase the security at an agreed upon price (usually higher) and time, the counterparty will not repurchase the security. These risks are magnified to the extent that a repurchase agreement is secured by collateral other than cash and government securities, such as debt securities, equity securities and high-yield securities that are rated below investment grade (also referred to as junk bonds) (Alternative Collateral). High-yield securities that are used as Alternative Collateral are subject to greater levels of credit and liquidity risk, and are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments. Alternative Collateral may be subject to greater price volatility and may be more volatile or less liquid than other types of collateral, increasing the risk that the fund will be unable to recover fully in the event of a counterparty's default.

2 Schwab Prime Advantage Money Fund  | Summary Prospectus

Credit Risk. A decline in the credit quality of an issuer, guarantor or liquidity provider of a portfolio investment or a counterparty could cause the fund to lose money or underperform. The fund could lose money if, due to a decline in credit quality, the issuer, guarantor or liquidity provider of a portfolio investment or a counterparty fails to make, or is perceived as being unable or unwilling to make, timely principal or interest payments or otherwise honor its obligations. Even though the fund's investments in repurchase agreements are collateralized at all times, there is some risk to the fund if the other party should default on its obligations and the fund is delayed or prevented from recovering or disposing of the collateral. The credit quality of the fund's portfolio holdings can change rapidly in certain market environments and any downgrade or default on the part of a single portfolio investment could cause the fund's share price or yield to fall.

Certain U.S. government securities that the fund invests in are not backed by the full faith and credit of the U.S. government, which means they are neither issued nor guaranteed by the U.S. Treasury. Although maintained in conservatorship by the Federal Housing Finance Agency (FHFA) since September 2008, Fannie Mae and Freddie Mac maintain only lines of credit with the U.S. Treasury. The Federal Home Loan Banks maintain limited access to credit lines from the U.S. Treasury. Other securities, such as obligations issued by the Federal Farm Credit Banks Funding Corporation, are supported solely by the credit of the issuer. There can be no assurance that the U.S. government will provide financial support to securities of its agencies and instrumentalities if it is not obligated to do so under law. Also, any government guarantees on securities the fund owns do not extend to the shares of the fund itself.

Sector Risk. The fund may invest a significant portion of its assets in securities issued by companies in the financials sector. Accordingly, the fund may be more susceptible to developments that affect that sector than other funds that do not invest as substantially in that sector.

Credit and Liquidity Enhancements Risk. The fund may invest in securities with credit or liquidity enhancements provided by a bank or other financial institution, and the existence and nature of such enhancements may be a significant factor in the investment adviser's decision-making process. Generally, these enhancements are employed by the issuers of the securities to reduce credit risk and provide enhanced or back-up liquidity for a purchaser, such as the fund. Adverse developments affecting these banks and financial institutions could therefore have a negative effect on the value of the fund's holdings. For example, a rating agency downgrade of a credit or liquidity enhancement provider may adversely affect the value of securities held by the fund. Any decline in the value of the securities held by the fund could cause the fund's share price or yield to fall. To the extent that a portion of the fund's underlying investments are enhanced by the same bank or financial institution, these risks may be increased.

Foreign Investment Risk. Although the fund may invest only in U.S. dollar-denominated securities, the fund's investments in securities of foreign issuers or securities with credit or liquidity enhancements provided by foreign entities may involve certain risks that are greater

than those associated with investments in securities of U.S. issuers or securities with credit or liquidity enhancements provided by U.S. entities. These include risks of adverse changes in foreign economic, political, regulatory and other conditions; the imposition of economic sanctions or other government restrictions; differing accounting, auditing, financial reporting and legal standards and practices; differing securities market structures; and higher transaction costs. These risks may negatively impact the value or liquidity of the fund's investments, and could impair the fund's ability to meet its investment objective or invest in accordance with its investment strategy. In addition, sovereign risk, or the risk that a government may become unwilling or unable to meet its loan obligations or guarantees, could increase the credit risk of financial institutions connected to that particular country.

Management Risk. Any actively managed mutual fund is subject to the risk that its investment adviser will select investments or allocate assets in a manner that could cause the fund to underperform or otherwise not meet its investment objective. The fund's investment adviser applies its own investment techniques and risk analyses in making investment decisions for the fund, but there can be no guarantee that they will produce the desired results. The investment adviser's maturity decisions will also affect the fund's yield, and potentially could affect its share price. To the extent that the investment adviser anticipates interest rate trends imprecisely, the fund's yield at times could lag the yields of other money market funds.

Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase, sell or value, especially during stressed market conditions. The market for certain investments may become illiquid due to specific adverse changes in the conditions of a particular issuer or under adverse market or economic conditions independent of the issuer. In addition, limited dealer inventories of certain securities could potentially lead to decreased liquidity. In such cases, the fund, due to limitations on investments in illiquid securities and the difficulty in readily purchasing and selling such securities at favorable times or prices, may decline in value, experience lower returns and/or be unable to achieve its desired level of exposure to a certain issuer or sector. Further, transactions in illiquid securities may entail transaction costs that are higher than those for transactions in liquid securities.

Redemption Risk. The fund may experience periods of heavy redemptions that could cause the fund to liquidate its assets at inopportune times or at a loss or depressed value, particularly during periods of declining or illiquid markets. Redemptions by a few large investors in the fund may have a significant adverse effect on the fund's ability to maintain a stable $1.00 share price. In the event any money market fund fails to maintain a stable net asset value, other money market funds, including the fund, could face a market-wide risk of increased redemption pressures, potentially jeopardizing the stability of their $1.00 share prices.

Money Market Fund Risk. The fund is not designed to offer capital appreciation. In exchange for their emphasis on stability and liquidity, money market investments may offer lower long-term performance than stock or bond investments.

Schwab Prime Advantage Money Fund  | Summary Prospectus 3