Filing by Investment Company (SEC Filing - 497K)

Wells Fargo Real Return Fund

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus, reports to shareholders and other information about the Fund online at wellsfargofunds.com/reports. You can also get information at no cost by calling 1-800-222-8222, or by sending an email request to [email protected]. The current prospectus ("Prospectus") and statement of additional information ("SAI"), dated October 1, 2021, as supplemented from time to time, are incorporated by reference into this summary prospectus. The Fund's SAI may be obtained, free of charge, in the same manner as the Prospectus.

Investment Objective

The Fund seeks returns that exceed the rate of inflation over the long-term.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 23 and 25 of the Prospectus and "Additional Purchase and Redemption Information" on page 88 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 40 for further information.

1

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 20% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

The Fund is a feeder fund that invests substantially all of its assets in the Real Return Portfolio, a master portfolio with a substantially identical investment objective and substantially similar investment strategies. We may invest in additional master portfolios, in other Wells Fargo Funds, or directly in a portfolio of securities.

We utilize an active allocation strategy to diversify the portfolio across various investments, assets and sectors, in an attempt to generate a real return (a return in excess of the rate of inflation) over an economic cycle, consistent with an appropriate level of risk. We allocate investments to various broad asset classes based on our assessment of changing economic, global market, industry, and issuer conditions. We use a "top-down" analysis of macroeconomic trends combined with a "bottom-up" fundamental analysis of market sectors, industries, and issuers to seek to take advantage of varying sector reactions to the economic environment. In implementing the active allocation strategy, we evaluate relative risk and relative values across asset classes, countries, sectors, and issuers.

We invest principally in debt securities, seeking to exceed the rate of inflation over a full market cycle. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers, including issuers from emerging markets. We invest primarily in inflation-indexed debt securities issued or guaranteed by governments, their agencies or instrumentalities, as well as corporate issuers. We may also invest in a variety of other debt securities, including corporate, mortgage- and asset-backed securities, bank loans and government obligations. We treat the returns from inflation-indexed debt securities as including interest paid on the principal amount of the security, adjustments made to the principal amount based on an official inflation measure and changes in market value.

We invest in investment-grade debt securities by generally purchasing securities that we believe have strong relative value based on an analysis of a security's characteristics (such as its principal value, coupon rate, credit quality, maturity, duration and yield) in light of the current market environment. We may also invest in below investment-grade debt securities, often called "high yield securities" or "junk bonds". We start our investment process with a focus on bottom-up fundamental credit analysis to generate investment ideas, to understand the potential risks, and to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a debt security due to changes in credit characteristics or our outlook, as well as changes in portfolio strategy or cash flow needs or to replace a debt security with another security that presents what we believe to be a better value or risk/reward profile. We do not manage the Fund's portfolio to a specific maturity or duration.

We may invest in equity securities, including common stock, preferred stock, and REITs, of domestic and foreign issuers, including emerging market issuers and American Depositary Receipts (ADRs). We seek out investments that we believe have

2

strong financial attributes and offer compelling valuation opportunities. We may invest in equity securities of companies of any size. These investments will generally be within sectors of the market (such as real estate, consumer staples, energy and materials) that we believe to be inflation-sensitive.

We may invest in derivatives, such as futures and swaps that have economic or financial characteristics that are similar to inflation-indexed, debt securities or equity securities. We may also use futures contracts to manage or adjust duration and yield curve exposure, as well as to manage risk or to enhance return.

We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

Principal Investment Risks

Because the Fund invests substantially all of its assets in a master portfolio with a substantially identical investment objective and substantially similar investment strategies, the following principal risks include those risks that result from the Fund's investment in the master portfolio. In this section, references to the Fund should be read to include the Fund and the master portfolio, as appropriate.

The Fund's performance will not correlate perfectly with that of the master portfolio due to the impact of the Fund's fees and expenses and to the timing and magnitude of cash flows into and out of the Fund, which will create cash balances that cause the Fund's performance to deviate from the performance of the master portfolio.

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Market Risk. The values of, and/or the income generated by, securities held by the Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Securities markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Debt Securities Risk. Debt securities are subject to credit risk and interest rate risk. Credit risk is the possibility that the issuer or guarantor of a debt security may be unable, or perceived to be unable, to pay interest or repay principal when they become due. In these instances, the value of an investment could decline and the Fund could lose money. Credit risk increases as an issuer's credit quality or financial strength declines. Interest rate risk is the possibility that interest rates will change over time. When interest rates rise, the value of debt securities tends to fall. The longer the terms of the debt securities held by a Fund, the more the Fund is subject to this risk. If interest rates decline, interest that the Fund is able to earn on its investments in debt securities may also decline, which could cause the Fund to reduce the dividends it pays to shareholders, but the value of those securities may increase. Very low or negative interest rates may magnify interest rate risk.

Inflation-Indexed Debt Securities Risk. The principal value of an inflation-indexed debt security is periodically adjusted according to the rate of inflation and, as a result, the value of a Fund's yield and return will be affected by changes in the rate of inflation.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Equity Securities Risk. The values of equity securities may experience periods of substantial price volatility and may decline significantly over short time periods. In general, the values of equity securities are more volatile than those of debt securities. Equity securities fluctuate in value and price in response to factors specific to the issuer of the security, such as management performance, financial condition, and market demand for the issuer's products or services, as well as factors unrelated to the fundamental condition of the issuer, including general market, economic and political conditions. Different parts of a market, industry and sector may react differently to adverse issuer, market, regulatory, political, and economic developments.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused

3

by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes, and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce expected returns, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Real Estate Securities Risk. Real estate securities are subject to risks from decreases in the values of underlying real estate assets and the income derived from such assets, changes in interest rates, issuer management, macroeconomic developments, government regulation and social and economic trends. The value of certain real estate securities may also be affected by local and regional market conditions.

Smaller Company Securities Risk. Securities of companies with smaller market capitalizations tend to be more volatile and less liquid than those of larger companies.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

4

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wfam.com.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

5

Fund Management

Purchase and Sale of Fund Shares

In general, you can buy or sell shares of the Fund online or by mail, phone or wire on any day the New York Stock Exchange is open for regular trading. You also may buy and sell shares through a financial professional.

Tax Information

Any distributions you receive from the Fund may be taxable as ordinary income or capital gains, except when your investment is in an IRA, 401(k) or other tax-advantaged investment plan. However, subsequent withdrawals from such a tax-advantaged investment plan may be subject to federal income tax. You should consult your tax adviser about your specific tax situation.

Payments to Intermediaries

If you purchase a Fund through an intermediary, the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the intermediary and your financial professional to recommend the Fund over another investment. Consult your financial professional or visit your intermediary's website for more information.

6

SUPPLEMENT TO THE
PROSPECTUSES AND SUMMARY PROSPECTUSES
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

On February 23, 2021, Wells Fargo & Company ("Wells Fargo") announced that it has entered into a definitive agreement to sell Wells Fargo Asset Management ("WFAM") to GTCR LLC ("GTCR") and Reverence Capital Partners, L.P. ("Reverence Capital Partners"). WFAM is the trade name used by the asset management businesses of Wells Fargo and includes Wells Fargo Funds Management, LLC, the investment manager to the Funds, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, both registered investment advisers providing sub-advisory services to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter. Under the terms of the agreement, the purchase price is $2.1 billion. As part of the transaction, Wells Fargo will own a 9.9% equity interest and will continue to serve as an important client and distribution partner.

Consummation of the transaction will result in the automatic termination of each Fund's investment management agreement and sub-advisory agreement(s). The Funds' Boards of Trustees (the "Boards") will be asked to approve new investment management arrangements with the new company. If approved by the Boards, and to the extent required by applicable law, the new investment management arrangements with the new company will be presented to the shareholders of each Fund for approval, and, if approved by shareholders, would take effect upon the closing of the transaction. The transaction is expected to close in the second half of 2021, subject to customary closing conditions.

Founded in 1980, GTCR is a leading private equity firm focused on investing in growth companies in the Healthcare, Financial Services & Technology, Technology, Media & Telecommunications, and Growth Business Services Industries. The Chicago-based firm pioneered The Leaders Strategy™ - finding and partnering with management leaders in core domains to identify, acquire, and build market-leading companies through transformational acquisitions and organic growth. Since its inception, GTCR has invested more than $20 billion in over 250 companies.

Reverence Capital Partners is a private investment firm focused on thematic investing in leading global, middle-market financial services businesses through control and influence-oriented investments in five sectors: (1) Depositories and Finance Companies, (2) Asset and Wealth Management, (3) Insurance, (4) Capital Markets and (5) Financial Technology/Payments. The firm was founded in 2013 by Milton Berlinski, Peter Aberg, and Alex Chulack, who collectively bring over 90 years of advisory and investing experience across a wide range of financial services sectors.

SUPPLEMENT TO THE
PROSPECTUSES, SUMMARY PROSPECTUSES AND STATEMENT OF ADDITIONAL INFORMATION
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

At a meeting held July 15, 2021, the Board of Trustees of the Wells Fargo Funds approved a change in the Funds' names to remove "Wells Fargo" from each Fund's name and replace with "Allspring". The change is expected to go into effect on Oct. 11, 2021.

Wells Fargo Asset Management (WFAM) today announced that it will be changing its company name to Allspring Global Investments upon the closing of the previously announced sale transaction of WFAM by Wells Fargo & Company to GTCR LLC and Reverence Capital Partners, L.P. The new corporate name is expected to go into effect on the closing date of the transaction, which is anticipated to occur in the second half of 2021, subject to customary closing conditions.

Following the closing of the transaction, Wells Fargo Funds Management, LLC, the Fund's Investment Manager, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, each Sub-advisors to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter, will each migrate to Allspring.

Wells Fargo Real Return Fund

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus, reports to shareholders and other information about the Fund online at wellsfargofunds.com/reports. You can also get information at no cost by calling 1-800-222-8222, or by sending an email request to [email protected]. The current prospectus ("Prospectus") and statement of additional information ("SAI"), dated October 1, 2021, as supplemented from time to time, are incorporated by reference into this summary prospectus. The Fund's SAI may be obtained, free of charge, in the same manner as the Prospectus.

Investment Objective

The Fund seeks returns that exceed the rate of inflation over the long-term.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

1

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 20% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

The Fund is a feeder fund that invests substantially all of its assets in the Real Return Portfolio, a master portfolio with a substantially identical investment objective and substantially similar investment strategies. We may invest in additional master portfolios, in other Wells Fargo Funds, or directly in a portfolio of securities.

We utilize an active allocation strategy to diversify the portfolio across various investments, assets and sectors, in an attempt to generate a real return (a return in excess of the rate of inflation) over an economic cycle, consistent with an appropriate level of risk. We allocate investments to various broad asset classes based on our assessment of changing economic, global market, industry, and issuer conditions. We use a "top-down" analysis of macroeconomic trends combined with a "bottom-up" fundamental analysis of market sectors, industries, and issuers to seek to take advantage of varying sector reactions to the economic environment. In implementing the active allocation strategy, we evaluate relative risk and relative values across asset classes, countries, sectors, and issuers.

We invest principally in debt securities, seeking to exceed the rate of inflation over a full market cycle. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers, including issuers from emerging markets. We invest primarily in inflation-indexed debt securities issued or guaranteed by governments, their agencies or instrumentalities, as well as corporate issuers. We may also invest in a variety of other debt securities, including corporate, mortgage- and asset-backed securities, bank loans and government obligations. We treat the returns from inflation-indexed debt securities as including interest paid on the principal amount of the security, adjustments made to the principal amount based on an official inflation measure and changes in market value.

We invest in investment-grade debt securities by generally purchasing securities that we believe have strong relative value based on an analysis of a security's characteristics (such as its principal value, coupon rate, credit quality, maturity, duration and yield) in light of the current market environment. We may also invest in below investment-grade debt securities, often called "high yield securities" or "junk bonds". We start our investment process with a focus on bottom-up fundamental credit analysis to generate investment ideas, to understand the potential risks, and to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a debt security due to changes in credit characteristics or our outlook, as well as changes in portfolio strategy or cash flow needs or to replace a debt security with another security that presents what we believe to be a better value or risk/reward profile. We do not manage the Fund's portfolio to a specific maturity or duration.

We may invest in equity securities, including common stock, preferred stock, and REITs, of domestic and foreign issuers, including emerging market issuers and American Depositary Receipts (ADRs). We seek out investments that we believe have strong financial attributes and offer compelling valuation opportunities. We may invest in equity securities of companies of any size. These investments will generally be within sectors of the market (such as real estate, consumer staples, energy and materials) that we believe to be inflation-sensitive.

We may invest in derivatives, such as futures and swaps that have economic or financial characteristics that are similar to inflation-indexed, debt securities or equity securities. We may also use futures contracts to manage or adjust duration and yield curve exposure, as well as to manage risk or to enhance return.

2

We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

Principal Investment Risks

Because the Fund invests substantially all of its assets in a master portfolio with a substantially identical investment objective and substantially similar investment strategies, the following principal risks include those risks that result from the Fund's investment in the master portfolio. In this section, references to the Fund should be read to include the Fund and the master portfolio, as appropriate.

The Fund's performance will not correlate perfectly with that of the master portfolio due to the impact of the Fund's fees and expenses and to the timing and magnitude of cash flows into and out of the Fund, which will create cash balances that cause the Fund's performance to deviate from the performance of the master portfolio.

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Market Risk. The values of, and/or the income generated by, securities held by the Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Securities markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Debt Securities Risk. Debt securities are subject to credit risk and interest rate risk. Credit risk is the possibility that the issuer or guarantor of a debt security may be unable, or perceived to be unable, to pay interest or repay principal when they become due. In these instances, the value of an investment could decline and the Fund could lose money. Credit risk increases as an issuer's credit quality or financial strength declines. Interest rate risk is the possibility that interest rates will change over time. When interest rates rise, the value of debt securities tends to fall. The longer the terms of the debt securities held by a Fund, the more the Fund is subject to this risk. If interest rates decline, interest that the Fund is able to earn on its investments in debt securities may also decline, which could cause the Fund to reduce the dividends it pays to shareholders, but the value of those securities may increase. Very low or negative interest rates may magnify interest rate risk.

Inflation-Indexed Debt Securities Risk. The principal value of an inflation-indexed debt security is periodically adjusted according to the rate of inflation and, as a result, the value of a Fund's yield and return will be affected by changes in the rate of inflation.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Equity Securities Risk. The values of equity securities may experience periods of substantial price volatility and may decline significantly over short time periods. In general, the values of equity securities are more volatile than those of debt securities. Equity securities fluctuate in value and price in response to factors specific to the issuer of the security, such as management performance, financial condition, and market demand for the issuer's products or services, as well as factors unrelated to the fundamental condition of the issuer, including general market, economic and political conditions. Different parts of a market, industry and sector may react differently to adverse issuer, market, regulatory, political, and economic developments.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes, and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

3

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce expected returns, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Real Estate Securities Risk. Real estate securities are subject to risks from decreases in the values of underlying real estate assets and the income derived from such assets, changes in interest rates, issuer management, macroeconomic developments, government regulation and social and economic trends. The value of certain real estate securities may also be affected by local and regional market conditions.

Smaller Company Securities Risk. Securities of companies with smaller market capitalizations tend to be more volatile and less liquid than those of larger companies.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

4

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wfam.com.

5

Fund Management

Purchase and Sale of Fund Shares

Class R6 shares generally are available only to certain retirement plans, including: 401(k) plans, 457 plans, profit sharing and money purchase pension plans, defined benefit plans, target benefit plans, and non-qualified deferred compensation plans. Class R6 shares also are generally available only to retirement plans where plan level or omnibus accounts are held on the books of the Fund. Class R6 shares also are available to funds of funds managed by Funds Management. Class R6 shares generally are not available to retail accounts but may be offered through intermediaries for the accounts of their customers to certain institutional and fee-based investors, and in each case, only if a dealer agreement is in place with Wells Fargo Funds Distributor, LLC to offer Class R6 shares.

Tax Information

By investing in a Fund through a tax-deferred retirement account, you will not be subject to tax on dividends and capital gains distributions from the Fund or the sale of Fund shares if those amounts remain in the tax-deferred account.

Distributions taken from retirement plan accounts generally are taxable as ordinary income. For special rules concerning tax-deferred retirement accounts, including applications, restrictions, tax advantages, and potential sales charge waivers, contact your investment professional. To determine if a retirement plan may be appropriate for you and to obtain further information, consult your tax adviser.

6

SUPPLEMENT TO THE
PROSPECTUSES AND SUMMARY PROSPECTUSES
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

On February 23, 2021, Wells Fargo & Company ("Wells Fargo") announced that it has entered into a definitive agreement to sell Wells Fargo Asset Management ("WFAM") to GTCR LLC ("GTCR") and Reverence Capital Partners, L.P. ("Reverence Capital Partners"). WFAM is the trade name used by the asset management businesses of Wells Fargo and includes Wells Fargo Funds Management, LLC, the investment manager to the Funds, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, both registered investment advisers providing sub-advisory services to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter. Under the terms of the agreement, the purchase price is $2.1 billion. As part of the transaction, Wells Fargo will own a 9.9% equity interest and will continue to serve as an important client and distribution partner.

Consummation of the transaction will result in the automatic termination of each Fund's investment management agreement and sub-advisory agreement(s). The Funds' Boards of Trustees (the "Boards") will be asked to approve new investment management arrangements with the new company. If approved by the Boards, and to the extent required by applicable law, the new investment management arrangements with the new company will be presented to the shareholders of each Fund for approval, and, if approved by shareholders, would take effect upon the closing of the transaction. The transaction is expected to close in the second half of 2021, subject to customary closing conditions.

Founded in 1980, GTCR is a leading private equity firm focused on investing in growth companies in the Healthcare, Financial Services & Technology, Technology, Media & Telecommunications, and Growth Business Services Industries. The Chicago-based firm pioneered The Leaders Strategy™ - finding and partnering with management leaders in core domains to identify, acquire, and build market-leading companies through transformational acquisitions and organic growth. Since its inception, GTCR has invested more than $20 billion in over 250 companies.

Reverence Capital Partners is a private investment firm focused on thematic investing in leading global, middle-market financial services businesses through control and influence-oriented investments in five sectors: (1) Depositories and Finance Companies, (2) Asset and Wealth Management, (3) Insurance, (4) Capital Markets and (5) Financial Technology/Payments. The firm was founded in 2013 by Milton Berlinski, Peter Aberg, and Alex Chulack, who collectively bring over 90 years of advisory and investing experience across a wide range of financial services sectors.

SUPPLEMENT TO THE
PROSPECTUSES, SUMMARY PROSPECTUSES AND STATEMENT OF ADDITIONAL INFORMATION
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

At a meeting held July 15, 2021, the Board of Trustees of the Wells Fargo Funds approved a change in the Funds' names to remove "Wells Fargo" from each Fund's name and replace with "Allspring". The change is expected to go into effect on Oct. 11, 2021.

Wells Fargo Asset Management (WFAM) today announced that it will be changing its company name to Allspring Global Investments upon the closing of the previously announced sale transaction of WFAM by Wells Fargo & Company to GTCR LLC and Reverence Capital Partners, L.P. The new corporate name is expected to go into effect on the closing date of the transaction, which is anticipated to occur in the second half of 2021, subject to customary closing conditions.

Following the closing of the transaction, Wells Fargo Funds Management, LLC, the Fund's Investment Manager, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, each Sub-advisors to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter, will each migrate to Allspring.

Wells Fargo Real Return Fund

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus, reports to shareholders and other information about the Fund online at wellsfargofunds.com/reports. You can also get information at no cost by calling 1-800-222-8222, or by sending an email request to [email protected]. The current prospectus ("Prospectus") and statement of additional information ("SAI"), dated October 1, 2021, as supplemented from time to time, are incorporated by reference into this summary prospectus. The Fund's SAI may be obtained, free of charge, in the same manner as the Prospectus.

Investment Objective

The Fund seeks returns that exceed the rate of inflation over the long-term.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

1

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 20% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

The Fund is a feeder fund that invests substantially all of its assets in the Real Return Portfolio, a master portfolio with a substantially identical investment objective and substantially similar investment strategies. We may invest in additional master portfolios, in other Wells Fargo Funds, or directly in a portfolio of securities.

We utilize an active allocation strategy to diversify the portfolio across various investments, assets and sectors, in an attempt to generate a real return (a return in excess of the rate of inflation) over an economic cycle, consistent with an appropriate level of risk. We allocate investments to various broad asset classes based on our assessment of changing economic, global market, industry, and issuer conditions. We use a "top-down" analysis of macroeconomic trends combined with a "bottom-up" fundamental analysis of market sectors, industries, and issuers to seek to take advantage of varying sector reactions to the economic environment. In implementing the active allocation strategy, we evaluate relative risk and relative values across asset classes, countries, sectors, and issuers.

We invest principally in debt securities, seeking to exceed the rate of inflation over a full market cycle. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers, including issuers from emerging markets. We invest primarily in inflation-indexed debt securities issued or guaranteed by governments, their agencies or instrumentalities, as well as corporate issuers. We may also invest in a variety of other debt securities, including corporate, mortgage- and asset-backed securities, bank loans and government obligations. We treat the returns from inflation-indexed debt securities as including interest paid on the principal amount of the security, adjustments made to the principal amount based on an official inflation measure and changes in market value.

We invest in investment-grade debt securities by generally purchasing securities that we believe have strong relative value based on an analysis of a security's characteristics (such as its principal value, coupon rate, credit quality, maturity, duration and yield) in light of the current market environment. We may also invest in below investment-grade debt securities, often called "high yield securities" or "junk bonds". We start our investment process with a focus on bottom-up fundamental credit analysis to generate investment ideas, to understand the potential risks, and to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a debt security due to changes in credit characteristics or our outlook, as well as changes in portfolio strategy or cash flow needs or to replace a debt security with another security that presents what we believe to be a better value or risk/reward profile. We do not manage the Fund's portfolio to a specific maturity or duration.

We may invest in equity securities, including common stock, preferred stock, and REITs, of domestic and foreign issuers, including emerging market issuers and American Depositary Receipts (ADRs). We seek out investments that we believe have strong financial attributes and offer compelling valuation opportunities. We may invest in equity securities of companies of any size. These investments will generally be within sectors of the market (such as real estate, consumer staples, energy and materials) that we believe to be inflation-sensitive.

We may invest in derivatives, such as futures and swaps that have economic or financial characteristics that are similar to inflation-indexed, debt securities or equity securities. We may also use futures contracts to manage or adjust duration and yield curve exposure, as well as to manage risk or to enhance return.

2

We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

Principal Investment Risks

Because the Fund invests substantially all of its assets in a master portfolio with a substantially identical investment objective and substantially similar investment strategies, the following principal risks include those risks that result from the Fund's investment in the master portfolio. In this section, references to the Fund should be read to include the Fund and the master portfolio, as appropriate.

The Fund's performance will not correlate perfectly with that of the master portfolio due to the impact of the Fund's fees and expenses and to the timing and magnitude of cash flows into and out of the Fund, which will create cash balances that cause the Fund's performance to deviate from the performance of the master portfolio.

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Market Risk. The values of, and/or the income generated by, securities held by the Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Securities markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Debt Securities Risk. Debt securities are subject to credit risk and interest rate risk. Credit risk is the possibility that the issuer or guarantor of a debt security may be unable, or perceived to be unable, to pay interest or repay principal when they become due. In these instances, the value of an investment could decline and the Fund could lose money. Credit risk increases as an issuer's credit quality or financial strength declines. Interest rate risk is the possibility that interest rates will change over time. When interest rates rise, the value of debt securities tends to fall. The longer the terms of the debt securities held by a Fund, the more the Fund is subject to this risk. If interest rates decline, interest that the Fund is able to earn on its investments in debt securities may also decline, which could cause the Fund to reduce the dividends it pays to shareholders, but the value of those securities may increase. Very low or negative interest rates may magnify interest rate risk.

Inflation-Indexed Debt Securities Risk. The principal value of an inflation-indexed debt security is periodically adjusted according to the rate of inflation and, as a result, the value of a Fund's yield and return will be affected by changes in the rate of inflation.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Equity Securities Risk. The values of equity securities may experience periods of substantial price volatility and may decline significantly over short time periods. In general, the values of equity securities are more volatile than those of debt securities. Equity securities fluctuate in value and price in response to factors specific to the issuer of the security, such as management performance, financial condition, and market demand for the issuer's products or services, as well as factors unrelated to the fundamental condition of the issuer, including general market, economic and political conditions. Different parts of a market, industry and sector may react differently to adverse issuer, market, regulatory, political, and economic developments.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes, and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

3

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce expected returns, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Real Estate Securities Risk. Real estate securities are subject to risks from decreases in the values of underlying real estate assets and the income derived from such assets, changes in interest rates, issuer management, macroeconomic developments, government regulation and social and economic trends. The value of certain real estate securities may also be affected by local and regional market conditions.

Smaller Company Securities Risk. Securities of companies with smaller market capitalizations tend to be more volatile and less liquid than those of larger companies.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

4

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wfam.com.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

5

Fund Management

Purchase and Sale of Fund Shares

Administrator Class shares are generally available through intermediaries for the accounts of their customers and directly to institutional investors and individuals. Institutional investors may include corporations; private banks and trust companies; endowments and foundations; defined contribution, defined benefit and other employer sponsored retirement plans; institutional retirement plan platforms; insurance companies; registered investment advisor firms; bank trusts; 529 college savings plans; family offices; and funds of funds, including those managed by Funds Management. In general, you can buy or sell shares of the Fund online or by mail, phone or wire, on any day the New York Stock Exchange ("NYSE") is open for regular trading. You also may buy and sell shares through a financial professional.

Tax Information

Any distributions you receive from the Fund may be taxable as ordinary income or capital gains, except when your investment is in an IRA, 401(k) or other tax-advantaged investment plan. However, subsequent withdrawals from such a tax-advantaged investment plan may be subject to federal income tax. You should consult your tax adviser about your specific tax situation.

Payments to Intermediaries

If you purchase a Fund through an intermediary, the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the intermediary and your financial professional to recommend the Fund over another investment. Consult your financial professional or visit your intermediary's website for more information.

6

SUPPLEMENT TO THE
PROSPECTUSES AND SUMMARY PROSPECTUSES
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

On February 23, 2021, Wells Fargo & Company ("Wells Fargo") announced that it has entered into a definitive agreement to sell Wells Fargo Asset Management ("WFAM") to GTCR LLC ("GTCR") and Reverence Capital Partners, L.P. ("Reverence Capital Partners"). WFAM is the trade name used by the asset management businesses of Wells Fargo and includes Wells Fargo Funds Management, LLC, the investment manager to the Funds, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, both registered investment advisers providing sub-advisory services to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter. Under the terms of the agreement, the purchase price is $2.1 billion. As part of the transaction, Wells Fargo will own a 9.9% equity interest and will continue to serve as an important client and distribution partner.

Consummation of the transaction will result in the automatic termination of each Fund's investment management agreement and sub-advisory agreement(s). The Funds' Boards of Trustees (the "Boards") will be asked to approve new investment management arrangements with the new company. If approved by the Boards, and to the extent required by applicable law, the new investment management arrangements with the new company will be presented to the shareholders of each Fund for approval, and, if approved by shareholders, would take effect upon the closing of the transaction. The transaction is expected to close in the second half of 2021, subject to customary closing conditions.

Founded in 1980, GTCR is a leading private equity firm focused on investing in growth companies in the Healthcare, Financial Services & Technology, Technology, Media & Telecommunications, and Growth Business Services Industries. The Chicago-based firm pioneered The Leaders Strategy™ - finding and partnering with management leaders in core domains to identify, acquire, and build market-leading companies through transformational acquisitions and organic growth. Since its inception, GTCR has invested more than $20 billion in over 250 companies.

Reverence Capital Partners is a private investment firm focused on thematic investing in leading global, middle-market financial services businesses through control and influence-oriented investments in five sectors: (1) Depositories and Finance Companies, (2) Asset and Wealth Management, (3) Insurance, (4) Capital Markets and (5) Financial Technology/Payments. The firm was founded in 2013 by Milton Berlinski, Peter Aberg, and Alex Chulack, who collectively bring over 90 years of advisory and investing experience across a wide range of financial services sectors.

SUPPLEMENT TO THE
PROSPECTUSES, SUMMARY PROSPECTUSES AND STATEMENT OF ADDITIONAL INFORMATION
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

At a meeting held July 15, 2021, the Board of Trustees of the Wells Fargo Funds approved a change in the Funds' names to remove "Wells Fargo" from each Fund's name and replace with "Allspring". The change is expected to go into effect on Oct. 11, 2021.

Wells Fargo Asset Management (WFAM) today announced that it will be changing its company name to Allspring Global Investments upon the closing of the previously announced sale transaction of WFAM by Wells Fargo & Company to GTCR LLC and Reverence Capital Partners, L.P. The new corporate name is expected to go into effect on the closing date of the transaction, which is anticipated to occur in the second half of 2021, subject to customary closing conditions.

Following the closing of the transaction, Wells Fargo Funds Management, LLC, the Fund's Investment Manager, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, each Sub-advisors to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter, will each migrate to Allspring.

Wells Fargo Real Return Fund

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus, reports to shareholders and other information about the Fund online at wellsfargofunds.com/reports. You can also get information at no cost by calling 1-800-222-8222, or by sending an email request to [email protected]. The current prospectus ("Prospectus") and statement of additional information ("SAI"), dated October 1, 2021, as supplemented from time to time, are incorporated by reference into this summary prospectus. The Fund's SAI may be obtained, free of charge, in the same manner as the Prospectus.

Investment Objective

The Fund seeks returns that exceed the rate of inflation over the long-term.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

1

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 20% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

The Fund is a feeder fund that invests substantially all of its assets in the Real Return Portfolio, a master portfolio with a substantially identical investment objective and substantially similar investment strategies. We may invest in additional master portfolios, in other Wells Fargo Funds, or directly in a portfolio of securities.

We utilize an active allocation strategy to diversify the portfolio across various investments, assets and sectors, in an attempt to generate a real return (a return in excess of the rate of inflation) over an economic cycle, consistent with an appropriate level of risk. We allocate investments to various broad asset classes based on our assessment of changing economic, global market, industry, and issuer conditions. We use a "top-down" analysis of macroeconomic trends combined with a "bottom-up" fundamental analysis of market sectors, industries, and issuers to seek to take advantage of varying sector reactions to the economic environment. In implementing the active allocation strategy, we evaluate relative risk and relative values across asset classes, countries, sectors, and issuers.

We invest principally in debt securities, seeking to exceed the rate of inflation over a full market cycle. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers, including issuers from emerging markets. We invest primarily in inflation-indexed debt securities issued or guaranteed by governments, their agencies or instrumentalities, as well as corporate issuers. We may also invest in a variety of other debt securities, including corporate, mortgage- and asset-backed securities, bank loans and government obligations. We treat the returns from inflation-indexed debt securities as including interest paid on the principal amount of the security, adjustments made to the principal amount based on an official inflation measure and changes in market value.

We invest in investment-grade debt securities by generally purchasing securities that we believe have strong relative value based on an analysis of a security's characteristics (such as its principal value, coupon rate, credit quality, maturity, duration and yield) in light of the current market environment. We may also invest in below investment-grade debt securities, often called "high yield securities" or "junk bonds". We start our investment process with a focus on bottom-up fundamental credit analysis to generate investment ideas, to understand the potential risks, and to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a debt security due to changes in credit characteristics or our outlook, as well as changes in portfolio strategy or cash flow needs or to replace a debt security with another security that presents what we believe to be a better value or risk/reward profile. We do not manage the Fund's portfolio to a specific maturity or duration.

We may invest in equity securities, including common stock, preferred stock, and REITs, of domestic and foreign issuers, including emerging market issuers and American Depositary Receipts (ADRs). We seek out investments that we believe have strong financial attributes and offer compelling valuation opportunities. We may invest in equity securities of companies of any size. These investments will generally be within sectors of the market (such as real estate, consumer staples, energy and materials) that we believe to be inflation-sensitive.

We may invest in derivatives, such as futures and swaps that have economic or financial characteristics that are similar to inflation-indexed, debt securities or equity securities. We may also use futures contracts to manage or adjust duration and yield curve exposure, as well as to manage risk or to enhance return.

2

We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

Principal Investment Risks

Because the Fund invests substantially all of its assets in a master portfolio with a substantially identical investment objective and substantially similar investment strategies, the following principal risks include those risks that result from the Fund's investment in the master portfolio. In this section, references to the Fund should be read to include the Fund and the master portfolio, as appropriate.

The Fund's performance will not correlate perfectly with that of the master portfolio due to the impact of the Fund's fees and expenses and to the timing and magnitude of cash flows into and out of the Fund, which will create cash balances that cause the Fund's performance to deviate from the performance of the master portfolio.

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Market Risk. The values of, and/or the income generated by, securities held by the Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Securities markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Debt Securities Risk. Debt securities are subject to credit risk and interest rate risk. Credit risk is the possibility that the issuer or guarantor of a debt security may be unable, or perceived to be unable, to pay interest or repay principal when they become due. In these instances, the value of an investment could decline and the Fund could lose money. Credit risk increases as an issuer's credit quality or financial strength declines. Interest rate risk is the possibility that interest rates will change over time. When interest rates rise, the value of debt securities tends to fall. The longer the terms of the debt securities held by a Fund, the more the Fund is subject to this risk. If interest rates decline, interest that the Fund is able to earn on its investments in debt securities may also decline, which could cause the Fund to reduce the dividends it pays to shareholders, but the value of those securities may increase. Very low or negative interest rates may magnify interest rate risk.

Inflation-Indexed Debt Securities Risk. The principal value of an inflation-indexed debt security is periodically adjusted according to the rate of inflation and, as a result, the value of a Fund's yield and return will be affected by changes in the rate of inflation.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Equity Securities Risk. The values of equity securities may experience periods of substantial price volatility and may decline significantly over short time periods. In general, the values of equity securities are more volatile than those of debt securities. Equity securities fluctuate in value and price in response to factors specific to the issuer of the security, such as management performance, financial condition, and market demand for the issuer's products or services, as well as factors unrelated to the fundamental condition of the issuer, including general market, economic and political conditions. Different parts of a market, industry and sector may react differently to adverse issuer, market, regulatory, political, and economic developments.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes, and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

3

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce expected returns, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Real Estate Securities Risk. Real estate securities are subject to risks from decreases in the values of underlying real estate assets and the income derived from such assets, changes in interest rates, issuer management, macroeconomic developments, government regulation and social and economic trends. The value of certain real estate securities may also be affected by local and regional market conditions.

Smaller Company Securities Risk. Securities of companies with smaller market capitalizations tend to be more volatile and less liquid than those of larger companies.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

4

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wfam.com.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

5

Fund Management

Purchase and Sale of Fund Shares

Institutional Class shares are generally available through intermediaries for the accounts of their customers and directly to institutional investors and individuals. Institutional investors may include corporations; private banks and trust companies; endowments and foundations; defined contribution, defined benefit and other employer sponsored retirement plans; institutional retirement plan platforms; insurance companies; registered investment advisor firms; bank trusts; 529 college savings plans; family offices; and funds of funds, including those managed by Funds Management. In general, you can buy or sell shares of the Fund online or by mail, phone or wire, on any day the New York Stock Exchange ("NYSE") is open for regular trading. You also may buy and sell shares through a financial professional.

Tax Information

Any distributions you receive from the Fund may be taxable as ordinary income or capital gains, except when your investment is in an IRA, 401(k) or other tax-advantaged investment plan. However, subsequent withdrawals from such a tax-advantaged investment plan may be subject to federal income tax. You should consult your tax adviser about your specific tax situation.

Payments to Intermediaries

If you purchase a Fund through an intermediary, the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the intermediary and your financial professional to recommend the Fund over another investment. Consult your financial professional or visit your intermediary's website for more information.

6

SUPPLEMENT TO THE
PROSPECTUSES AND SUMMARY PROSPECTUSES
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

On February 23, 2021, Wells Fargo & Company ("Wells Fargo") announced that it has entered into a definitive agreement to sell Wells Fargo Asset Management ("WFAM") to GTCR LLC ("GTCR") and Reverence Capital Partners, L.P. ("Reverence Capital Partners"). WFAM is the trade name used by the asset management businesses of Wells Fargo and includes Wells Fargo Funds Management, LLC, the investment manager to the Funds, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, both registered investment advisers providing sub-advisory services to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter. Under the terms of the agreement, the purchase price is $2.1 billion. As part of the transaction, Wells Fargo will own a 9.9% equity interest and will continue to serve as an important client and distribution partner.

Consummation of the transaction will result in the automatic termination of each Fund's investment management agreement and sub-advisory agreement(s). The Funds' Boards of Trustees (the "Boards") will be asked to approve new investment management arrangements with the new company. If approved by the Boards, and to the extent required by applicable law, the new investment management arrangements with the new company will be presented to the shareholders of each Fund for approval, and, if approved by shareholders, would take effect upon the closing of the transaction. The transaction is expected to close in the second half of 2021, subject to customary closing conditions.

Founded in 1980, GTCR is a leading private equity firm focused on investing in growth companies in the Healthcare, Financial Services & Technology, Technology, Media & Telecommunications, and Growth Business Services Industries. The Chicago-based firm pioneered The Leaders Strategy™ - finding and partnering with management leaders in core domains to identify, acquire, and build market-leading companies through transformational acquisitions and organic growth. Since its inception, GTCR has invested more than $20 billion in over 250 companies.

Reverence Capital Partners is a private investment firm focused on thematic investing in leading global, middle-market financial services businesses through control and influence-oriented investments in five sectors: (1) Depositories and Finance Companies, (2) Asset and Wealth Management, (3) Insurance, (4) Capital Markets and (5) Financial Technology/Payments. The firm was founded in 2013 by Milton Berlinski, Peter Aberg, and Alex Chulack, who collectively bring over 90 years of advisory and investing experience across a wide range of financial services sectors.

SUPPLEMENT TO THE
PROSPECTUSES, SUMMARY PROSPECTUSES AND STATEMENT OF ADDITIONAL INFORMATION
OF
WELLS FARGO ALTERNATIVE FUNDS
WELLS FARGO COREBUILDER SHARES
WELLS FARGO FIXED INCOME FUNDS
WELLS FARGO INTERNATIONAL AND GLOBAL EQUITY FUNDS
WELLS FARGO MONEY MARKET FUNDS
WELLS FARGO MULTI-ASSET FUNDS
WELLS FARGO MUNICIPAL FIXED INCOME FUNDS
WELLS FARGO SPECIALTY FUNDS
WELLS FARGO TARGET DATE RETIREMENT FUNDS
WELLS FARGO U.S. EQUITY FUNDS
WELLS FARGO VARIABLE TRUST FUNDS
(Each a "Fund", together the "Funds")

At a meeting held July 15, 2021, the Board of Trustees of the Wells Fargo Funds approved a change in the Funds' names to remove "Wells Fargo" from each Fund's name and replace with "Allspring". The change is expected to go into effect on Oct. 11, 2021.

Wells Fargo Asset Management (WFAM) today announced that it will be changing its company name to Allspring Global Investments upon the closing of the previously announced sale transaction of WFAM by Wells Fargo & Company to GTCR LLC and Reverence Capital Partners, L.P. The new corporate name is expected to go into effect on the closing date of the transaction, which is anticipated to occur in the second half of 2021, subject to customary closing conditions.

Following the closing of the transaction, Wells Fargo Funds Management, LLC, the Fund's Investment Manager, Wells Capital Management Incorporated and Wells Fargo Asset Management (International) Limited, each Sub-advisors to certain Funds, and Wells Fargo Funds Distributor, LLC, the Funds' principal underwriter, will each migrate to Allspring.