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investment. The policy stated in the foregoing sentence is a fundamental policy of the Fund and may not be changed without shareholder approval of a majority of the Fund’s outstanding voting securities, as defined in the Investment Company Act of 1940, as amended (1940 Act). In complying with this 80% investment requirement, the Fund may invest in derivatives and other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. Municipal securities include debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which is exempt from federal income tax, at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. The principal types of municipal debt securities purchased by the Fund are revenue obligations and general obligations. To meet its investment objective, the Fund invests in different types of general obligation and revenue obligation securities, including fixed and variable rate securities, municipal notes, variable rate demand notes, municipal leases, custodial receipts, and participation certificates. The Fund may invest in these and other types of municipal securities. Under normal market conditions, the Fund invests primarily in municipal securities classified as revenue bonds. Invesco Advisers, Inc. (Invesco or the Adviser) generally seeks to achieve the Fund’s investment objective by investing at least 75% of its net assets in higher yielding municipal securities, specifically medium- and lower-grade municipal securities. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor’s Ratings Services (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by the Adviser to be of comparable quality, each at the time of purchase. Medium- and lower-grade municipal securities are securities rated by S&P or Fitch, Inc. (Fitch) as BBB+ through D (inclusive) for bonds or SP-2 or lower for notes; by Moody’s as Baa1 through D (inclusive) for bonds or MIG3 or VMIG3 or lower for notes; or unrated municipal securities determined by the Adviser to be of comparable quality, each at the time of purchase. Medium- and lower-grade securities are, therefore, inclusive of some securities rated investment grade. Securities rated below investment grade are commonly referred to as junk bonds. At times, the market conditions in the municipal securities markets may be such that the Adviser may invest in higher-grade issues, particularly when the difference in returns between quality classifications is very narrow or when the Adviser expects interest rates to increase. Higher-grade securities are securities that are rated higher than medium- or lower-grade securities by Moody’s, S&P, or Fitch, or considered by the Adviser to be of comparable quality, including municipal securities rated A-, SP-1 or higher by S&P or rated A3, MIG2, VMIG2 or higher by Moody’s and in tax-exempt commercial paper rated A-3 or higher by S&P or rated P-3 or higher by Moody’s or in unrated securities determined by the Adviser to be of comparable quality. The Fund may invest more than 25% of its net assets in a segment of the municipal securities market with similar characteristics if the Adviser determines that the yields available from obligations in a particular segment justify the additional risks of a larger investment in such segment. The Fund may not, however, invest more than 25% of its net assets in industrial development revenue bonds issued for companies in the same industry. The Fund has no policy limiting its investments in municipal securities whose issuers are located in the same state. However, it is not the present intention of the Fund to invest more than 25% of the value of its net assets in issuers located in the same state. The Fund may from time to time invest temporarily up to 20% of its net assets in taxable securities of at least comparable quality to the municipal securities in which the Fund invests. Under normal market conditions, the Fund may invest all or a substantial portion of its assets in municipal securities that are subject to the federal alternative minimum tax. From time to time, the Fund temporarily may invest up to 10% of its net assets in tax exempt money market funds and such instruments will be treated as investments in municipal securities. The Fund may invest up to 15% of its net assets in illiquid or thinly traded securities. The Fund may also invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund’s investments may include securities that do not produce immediate cash income, such as zero coupon securities and payment-in-kind securities. The Fund may purchase and sell securities on a when-issued and delayed delivery basis, which means that a Fund buys or sells a security with payment and delivery taking place in the future. The Fund can invest in inverse floating rate municipal obligations issued in connection with tender option bond programs to generate leverage. The Fund can invest in derivative instruments, including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury futures, to gain or reduce exposure to certain asset classes. The Fund can use swap contracts, including interest rate swaps, to hedge its exposure to interest rates. The Adviser buys and sells securities for the Fund’s portfolio with a view towards seeking a high level of interest income exempt from federal income tax and selects securities that the Adviser believes entail reasonable credit risk considered in relation to the investment policies of the Fund. As a result, the Fund will not necessarily invest in the highest yielding municipal securities permitted by its investment policies if the Adviser determines that market risks or credit risks associated with such investments would subject the Fund’s portfolio to undue risk. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as duration, yield curve positioning, and sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund. The potential for realization of capital gains or losses resulting from possible changes in interest rates will not be a major consideration and frequency of portfolio turnover generally will not be a limiting factor if the Adviser considers it advantageous to purchase or sell securities. As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Alternative Minimum Tax Risk. All or a portion of the Fund’s otherwise tax-exempt income may be taxable to those shareholders subject to the federal alternative minimum tax. Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates at or near zero. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and the Fund’s transaction costs. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by owning the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Also, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject the Fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile. Inverse Floating Rate Obligations Risk. The price of inverse floating rate obligations (inverse floaters) is expected to decline when interest rates rise, and generally will decline further than the price of a bond with a similar maturity. The price of inverse floaters is typically more volatile than the price of bonds with similar maturities. These risks can be particularly high if leverage is used in the formula that determines the interest payable by the inverse floater, which may make the Fund’s returns more volatile and increase the risk of loss. Additionally, these securities may lose some or all of their principal and, in some cases, the Fund could lose money in excess of its investment. Liquidity Risk. The Fund may be unable to sell illiquid investments at the time or price it desires and, as a result, could lose its entire investment in such investments. Liquid securities can become illiquid during periods of market stress. If a significant amount of the Fund’s securities become illiquid, the Fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Medium- and Lower-Grade Municipal Securities Risk. Medium- and lower-grade municipal securities generally involve more volatility and greater risks, including credit, market, liquidity and management risks, than higher-grade securities. Furthermore, many issuers of medium- and lower-grade securities choose not to have a rating assigned to their obligations. As such, the Fund’s portfolio may consist of a higher portion of unrated securities than an investment company investing solely in higher-grade securities. Unrated securities may not be as attractive to as many buyers as are rated securities, which may have the effect of limiting the Fund’s ability to sell such securities at their fair value. Municipal Issuer Focus Risk. The municipal issuers in which the Fund invests may be located in the same geographic area or may pay their interest obligations from revenue of similar projects, such as hospitals, airports, utility systems and housing finance agencies. This may make the Fund’s investments more susceptible to similar social, economic, political or regulatory occurrences, making the Fund more susceptible to experience a drop in its share price than if the Fund had been more diversified across issuers that did not have similar characteristics. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility. Zero Coupon or Pay-In-Kind Securities Risk. The value, interest rates, and liquidity of non-cash paying instruments, such as zero coupon and pay-in-kind securities, are subject to greater fluctuation than other types of securities. The higher yields and interest rates on pay-in-kind securities reflect the payment deferral and increased credit risk associated with such instruments and that such investments may represent a higher credit risk than loans that periodically pay interest. <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000062 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000063 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000064 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000067 column period compact * ~</div> Fund Summary Investment Objective(s) Fund Summary Investment Objective(s) The Fund's investment objective is to provide tax-exempt income consistent with preservation of capital and liquidity. Fees and Expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. The Fund’s investment objective is to seek federal tax-exempt current income and taxable capital appreciation. Shareholder Fees (fees paid directly from your investment) Fees and Expenses of the Fund This table describes the fees and expenses that you may 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 $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). 0 0 0 0 0 0 You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). 100000 Shareholder Fees (fees paid directly from your investment) Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000022 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000023 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000024 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleNoRedemptionTransposed000025 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000027 column period compact * ~</div> 0.0425 0 0 0 0.002 0.002 0.002 0.001 0 0 0 0.05 0.01 0 0.0049 0.0049 0.0049 0.0079 0.0069 0.0069 Fund Summary Investment Objective(s) The Fund's investment objective is to provide investors with a high level of current income exempt from federal income tax, consistent with preservation of capital. Fees and Expenses of the Fund Example. This table describes the fees and expenses that you may 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 $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). Fund Summaries - INVESCO LIMITED TERM MUNICIPAL INCOME FUND 100000 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) Shareholder Fees (fees paid directly from your investment) Investment Objective(s) The Fund's investment objective is federal tax-exempt current income. Fund Summaries - INVESCO HIGH YIELD MUNICIPAL FUND Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 81 70 70 Fees and Expenses of the Fund 252 221 221 This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investment Objective(s) 439 384 384 Shareholder Fees (fees paid directly from your investment) 978 859 859 The Fund's investment objective is to seek federal tax-exempt current income and taxable capital appreciation. Fees and Expenses of the Fund Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” Shareholder Fees (fees paid directly from your investment) Principal Investment Strategies of the Fund This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: The Fund invests under normal circumstances at least 80% of its net assets (plus any borrowings for investment purposes) in debt securities that (1) pay interest that is excluded from gross income for federal income tax purposes, and (2) do not produce income that will be considered to be an item of preference for purposes of the alternative minimum tax. While the Fund’s distributions are primarily exempt from federal income tax, a portion of the Fund’s distributions may be subject to the federal alternative minimum tax and state and local taxes. In complying with the 80% investment requirement, the Fund may include other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. The Fund may invest up to 20% of its net assets in money market instruments that may be subject to federal taxes, including Treasury securities, repurchase agreements, commercial paper, and U.S. dollar-denominated foreign securities. The Fund invests primarily in the following high-quality U.S. dollar-denominated short-term debt obligations: (i) municipal securities, which may include tax-exempt commercial paper; and (ii) cash equivalents. These securities may have credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. Municipal securities include debt obligations of states, territories and possessions of the United States and the District of Columbia, their political subdivisions, agencies, and instrumentalities, authorities thereof, and multi-state agencies, issued to obtain funds for various public purposes. Municipal lease obligations, synthetic municipal securities and certain types of industrial revenue bonds are treated as municipal securities. Other securities held by the Fund may be structured with demand features which have the effect of shortening the security’s maturity. The Fund will limit investments to those securities that are Eligible Securities as defined by applicable regulations at the time of purchase. The Fund is a money market fund that seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. The Fund invests in conformity with SEC rules and regulation requirements for money market funds for the quality, maturity, diversification and liquidity of investments. The Fund invests only in U.S. dollar-denominated securities maturing within 397 calendar days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 calendar days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 under the Investment Company Act of 1940, as amended (Rule 2a-7), of no more than 120 calendar days. Each investment must be determined to present minimal credit risks by Invesco Advisers, Inc. (Invesco or the Adviser) pursuant to guidelines approved by the Fund’s Board of Trustees (the Board), and must be an Eligible Security. The Fund may invest in U.S. dollar-denominated foreign securities. Some of the Fund’s investments, although U.S. dollar-denominated, may be subject to foreign credit exposure. The Fund may also invest in daily and weekly variable-rate demand notes. In selecting securities for the Fund’s portfolio, the Adviser focuses on securities that offer safety, liquidity, and a competitive yield. The Adviser conducts a credit analysis of each potential issuer prior to the purchase of its securities. The Adviser normally holds portfolio securities to maturity, but may sell a security when they deem it advisable, such as when market or credit factors materially change. The Adviser also considers selling a security if: (i) the issuer’s credit quality declines; (ii) the issuer’s geographic region changes negatively; (iii) interest rates change; or (iv) to enhance yield. 0.0051 0.0051 0.0051 0.0051 0 0.0025 0.0025 0.0098 0 0 June 30, 2017 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) Example. Example. Principal Risks of Investing in the Fund 0.0007 0.0007 0.0007 0.0007 0.0051 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 13% of the average value of its portfolio. This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain equal to the Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in the first year and the Total Annual Fund Operating Expenses thereafter. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: 0 0.0014 0.0007 Portfolio Turnover. 0.0021 You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Alternative Minimum Tax Risk. A portion of the Fund’s otherwise tax-exempt income may be taxable to those shareholders subject to the federal alternative minimum tax. Banking and Financial Services Industry Focus Risk. From time to time, the Fund may invest more than 25% of its assets in unsecured bank instruments, including but not limited to certificates of deposit and time deposits, or securities that may have guarantees or credit and liquidity enhancements provided by banks, insurance companies or other financial institutions. To the extent the Fund focuses its investments in these instruments or securities, the Fund’s performance will depend on the overall condition of those industries and the individual banks and financial institutions in which the Fund invests (directly or indirectly), the supply of short-term financing, changes in government regulation, changes in interest rates, and economic downturns in the United States and abroad. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Foreign Securities and Credit Exposure Risk. U.S. dollar-denominated securities carrying foreign credit exposure may be affected by unfavorable political, economic or governmental developments that could affect payments of principal and interest. Furthermore, the Fund's foreign investments may be adversely affected by political and social instability, changes in economic or taxation policies, difficulty in enforcing obligations, decreased liquidity or increased volatility. Foreign investments also involve the risk of the possible seizure, nationalization or expropriation of the issuer or foreign deposits (in which the Fund could lose its entire investments in a certain market) and the possible adoption of foreign governmental restrictions such as exchange controls. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. The Fund’s sponsor has no legal obligation to provide financial support to the Fund and you should not rely on or expect that the sponsor will enter into support agreements or take other actions to provide financial support to the Fund or to maintain the Fund’s $1.00 share price at any time. The credit quality of the Fund’s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund’s share price. The Fund’s share price can also be negatively affected during periods of high redemption pressures, illiquid markets and/or significant market volatility. Furthermore, amendments to money market fund regulations could impact a money market fund’s operations and possibly negatively impact its return. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. Repurchase Agreement Risk. The Fund is subject to the risk that the counterparty may default on its obligation to repurchase the underlying instruments collateralizing the repurchase agreement, which may cause the Fund to lose money. These risks are magnified to the extent that a repurchase agreement is secured by securities other than cash or U.S. Government securities. U.S. Government Obligations Risk. Obligations of U.S. Government agencies and authorities receive varying levels of support and may not be backed by the full faith and credit of the U.S. Government, which could affect the Fund’s ability to recover should they default. No assurance can be given that the U.S. Government will provide financial support to its agencies and authorities if it is not obligated by law to do so. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. Yield Risk. The Fund’s yield will vary as the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in other securities. When interest rates are very low, the Fund’s expenses could absorb all or a portion of the Fund’s income and yield. Additionally, inflation may outpace and diminish investment returns over time. 0.13 0.0072 You would pay the following expenses if you did not redeem your shares: 0.001 0.001 0.001 0.001 Principal Investment Strategies of the Fund 74 230 401 894 Performance Information 0.0017 0.0017 0.0017 0.0017 0.0093 0.0093 0.0166 0.0068 The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The Fund's past performance is not necessarily an indication of its future performance. Updated performance information is available on the Fund's website at www.invesco.com/us. Example. 0 Annual Total Returns Portfolio Turnover. 0 Class A year-to-date (ended March 31, 2016): 0.00% Best Quarter (ended September 30, 2007): 0.73% Worst Quarter (ended March 31, 2010, March 31, 2011, March 31, 2014, June 30, 2014, September 30, 2014, March 31, 2015, June 30, 2015 and September 30, 2015): 0.00% 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 7% of the average value of its portfolio. This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: 0.07 0.0024 Portfolio Turnover. 0 Principal Investment Strategies of the Fund Average Annual Total Returns (for the period ended December 31, 2015) 0.0007 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. 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 14% of the average value of its portfolio. 0.0031 <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000052 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000053 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000054 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleNoRedemptionTransposed000055 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000057 column period compact * ~</div> Under normal market conditions, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in municipal securities at the time of investment. The policy stated in the foregoing sentence is a fundamental policy of the Fund and may not be changed without shareholder approval of a majority of the Fund’s outstanding voting securities, as defined in the Investment Company Act of 1940, as amended (1940 Act). In complying with this 80% investment requirement, the Fund may invest in derivatives and other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. Under normal market conditions, Invesco Advisers, Inc. (Invesco or the Adviser) seeks to achieve the Fund’s investment objective by investing at least 65% of the Fund’s net assets in investment grade municipal securities. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor’s Ratings Services (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by the Adviser to be of comparable quality, each at the time of purchase. Municipal securities include debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which is exempt from federal income tax, at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. The principal types of municipal debt securities purchased by the Fund are revenue obligations and general obligations. To meet its investment objective, the Fund invests in different types of general obligations and revenue obligations, including fixed and variable rate securities, municipal notes, variable rate demand notes, municipal leases, custodial receipts, and participation certificates. The Fund may invest in these and other types of municipal securities. Under normal market conditions, the Fund invests primarily in municipal securities classified as revenue bonds. Under normal market conditions, the Fund may invest up to 35% of its net assets in municipal securities rated below investment grade and unrated municipal securities determined by the Adviser to be of comparable quality at the time of purchase. These types of securities are commonly referred to as junk bonds. With respect to such investments, the Fund has not established any limit on the percentage of its portfolio that may be invested in securities in any one rating category. The Fund may invest more than 25% of its net assets in a segment of the municipal securities market with similar characteristics if the Adviser determines that the yields available from obligations in a particular segment justify the additional risks of a larger investment in such segment. The Fund may not, however, invest more than 25% of its net assets in industrial development revenue bonds issued for companies in the same industry. The Fund may invest all or a substantial portion of its assets in municipal securities that are subject to the federal alternative minimum tax. From time to time, the Fund temporarily may invest up to 10% of its net assets in tax exempt money market funds and such instruments will be treated as investments in municipal securities. The Fund has no policy limiting its investments in municipal securities whose issuers are located in the same state. However, it is not the present intention of the Fund to invest more than 25% of the value of its net assets in issuers located in the same state. The Fund may invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund’s investments may include securities that do not produce immediate cash income, such as zero coupon securities and payment-in-kind securities. The Fund may purchase and sell securities on a when-issued and delayed delivery basis, which means that the Fund may buy or sell a security with payment and delivery taking place in the future. The Fund can invest in inverse floating rate municipal obligations issued in connection with tender option bond programs to generate leverage. The Fund can invest in derivative instruments including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury futures, to gain or reduce exposure to certain asset classes. The Fund can use swap contracts, including interest rate swaps, to hedge its exposure to interest rates. The Adviser actively manages the Fund’s portfolio and adjusts the average maturity of portfolio investments based upon its expectations regarding the direction of interest rates and other economic factors. The Adviser seeks to identify those securities that it believes entail reasonable credit risk considered in relation to the Fund’s investment policies. In selecting securities for investment, the Adviser uses its extensive research capabilities to assess potential investments and considers a number of factors, including general market and economic conditions and interest rate, credit and prepayment risks. Each security considered for investment is subjected to an in-depth credit analysis to evaluate the level of risk it presents. In pursuing its investment objective, the Fund may invest in securities of any maturity, but seeks to maintain a dollar-weighted average portfolio life of three to 10 years. In certain market conditions, however, such a portfolio may be less attractive because of differences in yield between municipal securities of different maturities due to supply and demand forces, monetary and tax policies and investor expectations. In the event of sustained market conditions that make it less desirable to maintain a dollar-weighted average portfolio life of three to 10 years, the Adviser may change the investment policy of the Fund with respect to the dollar-weighted average life of the portfolio if approved by the Board. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as duration, yield curve positioning, and sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund. The potential for realization of capital gains or losses resulting from possible changes in interest rates will not be a major consideration and frequency of portfolio turnover generally will not be a limiting factor if the Adviser considers it advantageous to purchase or sell securities. 0.14 Principal Risks of Investing in the Fund Principal Investment Strategies of the Fund 32 100 174 Under normal market conditions, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in municipal securities at the time of investment. The policy stated in the foregoing sentence is a fundamental policy of the Fund and may not be changed without shareholder approval of a majority of the Fund’s outstanding voting securities, as defined in the Investment Company Act of 1940, as amended (1940 Act). In complying with this 80% investment requirement, the Fund may invest in derivatives and other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. Municipal securities include debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which is exempt from federal income tax, at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. The principal types of municipal debt securities purchased by the Fund are revenue obligations and general obligations. To meet its investment objective, the Fund invests in different types of general obligation and revenue obligation securities, including fixed and variable rate securities, municipal notes, variable rate demand notes, municipal leases, custodial receipts, and participation certificates. The Fund may invest in these and other types of municipal securities. Under normal market conditions, the Fund invests primarily in municipal securities classified as revenue bonds. Invesco Advisers, Inc. (Invesco or the Adviser) generally seeks to achieve the Fund’s investment objective by investing at least 75% of its net assets in higher yielding municipal securities, specifically medium- and lower-grade municipal securities. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor’s Ratings Services (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by the Adviser to be of comparable quality, each at the time of purchase. Medium- and lower-grade municipal securities are securities rated by S&P or Fitch, Inc. (Fitch) as BBB+ through D (inclusive) for bonds or SP-2 or lower for notes; by Moody’s as Baa1 through D (inclusive) for bonds or MIG3 or VMIG3 or lower for notes; or unrated municipal securities determined by the Adviser to be of comparable quality, each at the time of purchase. Medium- and lower-grade securities are, therefore, inclusive of some securities rated investment grade. Securities rated below investment grade are commonly referred to as junk bonds. At times, the market conditions in the municipal securities markets may be such that the Adviser may invest in higher-grade issues, particularly when the difference in returns between quality classifications is very narrow or when the Adviser expects interest rates to increase. Higher-grade securities are securities that are rated higher than medium- or lower-grade securities by Moody’s, S&P, or Fitch, or considered by the Adviser to be of comparable quality, including municipal securities rated A-, SP-1 or higher by S&P or rated A3, MIG2, VMIG2 or higher by Moody’s and in tax-exempt commercial paper rated A-3 or higher by S&P or rated P-3 or higher by Moody’s or in unrated securities determined by the Adviser to be of comparable quality. The Fund may invest more than 25% of its net assets in a segment of the municipal securities market with similar characteristics if the Adviser determines that the yields available from obligations in a particular segment justify the additional risks of a larger investment in such segment. The Fund may not, however, invest more than 25% of its net assets in industrial development revenue bonds issued for companies in the same industry. The Fund has no policy limiting its investments in municipal securities whose issuers are located in the same state. However, it is not the present intention of the Fund to invest more than 25% of the value of its net assets in issuers located in the same state. The Fund may from time to time invest temporarily up to 20% of its net assets in taxable securities of at least comparable quality to the municipal securities in which the Fund invests. Under normal market conditions, the Fund may invest all or a substantial portion of its assets in municipal securities that are subject to the federal alternative minimum tax. From time to time, the Fund temporarily may invest up to 10% of its net assets in tax exempt money market funds and such instruments will be treated as investments in municipal securities. The Fund may invest up to 15% of its net assets in illiquid or thinly traded securities. The Fund may also invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund’s investments may include securities that do not produce immediate cash income, such as zero coupon securities and payment-in-kind securities. The Fund may purchase and sell securities on a when-issued and delayed delivery basis, which means that a Fund buys or sells a security with payment and delivery taking place in the future. The Fund can invest in inverse floating rate municipal obligations issued in connection with tender option bond programs to generate leverage. The Fund can invest in derivative instruments, including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury futures, to gain or reduce exposure to certain asset classes. The Fund can use swap contracts, including interest rate swaps, to hedge its exposure to interest rates. The Adviser buys and sells securities for the Fund’s portfolio with a view towards seeking a high level of interest income exempt from federal income tax and selects securities that the Adviser believes entail reasonable credit risk considered in relation to the investment policies of the Fund. As a result, the Fund will not necessarily invest in the highest yielding municipal securities permitted by its investment policies if the Adviser determines that market risks or credit risks associated with such investments would subject the Fund’s portfolio to undue risk. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as duration, yield curve positioning, and sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund. The potential for realization of capital gains or losses resulting from possible changes in interest rates will not be a major consideration and frequency of portfolio turnover generally will not be a limiting factor if the Adviser considers it advantageous to purchase or sell securities. As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Alternative Minimum Tax Risk. All or a portion of the Fund’s otherwise tax-exempt income may be taxable to those shareholders subject to the federal alternative minimum tax. Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates at or near zero. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and the Fund’s transaction costs. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by owning the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Also, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject the Fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile. Inverse Floating Rate Obligations Risk. The price of inverse floating rate obligations (inverse floaters) is expected to decline when interest rates rise, and generally will decline further than the price of a bond with a similar maturity. The price of inverse floaters is typically more volatile than the price of bonds with similar maturities. These risks can be particularly high if leverage is used in the formula that determines the interest payable by the inverse floater, which may make the Fund’s returns more volatile and increase the risk of loss. Additionally, these securities may lose some or all of their principal and, in some cases, the Fund could lose money in excess of its investment. Liquidity Risk. The Fund may be unable to sell illiquid investments at the time or price it desires and, as a result, could lose its entire investment in such investments. Liquid securities can become illiquid during periods of market stress. If a significant amount of the Fund’s securities become illiquid, the Fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Medium- and Lower-Grade Municipal Securities Risk. Medium- and lower-grade municipal securities generally involve more volatility and greater risks, including credit, market, liquidity and management risks, than higher-grade securities. Furthermore, many issuers of medium- and lower-grade securities choose not to have a rating assigned to their obligations. As such, the Fund’s portfolio may consist of a higher portion of unrated securities than an investment company investing solely in higher-grade securities. Unrated securities may not be as attractive to as many buyers as are rated securities, which may have the effect of limiting the Fund’s ability to sell such securities at their fair value. Municipal Issuer Focus Risk. The municipal issuers in which the Fund invests may be located in the same geographic area or may pay their interest obligations from revenue of similar projects, such as hospitals, airports, utility systems and housing finance agencies. This may make the Fund’s investments more susceptible to similar social, economic, political or regulatory occurrences, making the Fund more susceptible to experience a drop in its share price than if the Fund had been more diversified across issuers that did not have similar characteristics. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility. Zero Coupon or Pay-In-Kind Securities Risk. The value, interest rates, and liquidity of non-cash paying instruments, such as zero coupon and pay-in-kind securities, are subject to greater fluctuation than other types of securities. The higher yields and interest rates on pay-in-kind securities reflect the payment deferral and increased credit risk associated with such instruments and that such investments may represent a higher credit risk than loans that periodically pay interest. 393 Principal Risks of Investing in the Fund As with any mutual fund investment, loss of money is a risk of investing. 0.0011 0.0007 0.0007 0.0011 0.0011 As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Alternative Minimum Tax Risk. All or a portion of the Fund’s otherwise tax-exempt income may be taxable to those shareholders subject to the federal alternative minimum tax. Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates at or near zero. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and the Fund’s transaction costs. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by owning the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Also, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject the Fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile. Inverse Floating Rate Obligations Risk. The price of inverse floating rate obligations (inverse floaters) is expected to decline when interest rates rise, and generally will decline further than the price of a bond with a similar maturity. The price of inverse floaters is typically more volatile than the price of bonds with similar maturities. These risks can be particularly high if leverage is used in the formula that determines the interest payable by the inverse floater, which may make the Fund’s returns more volatile and increase the risk of loss. Additionally, these securities may lose some or all of their principal and, in some cases, the Fund could lose money in excess of its investment. Liquidity Risk. The Fund may be unable to sell illiquid investments at the time or price it desires and, as a result, could lose its entire investment in such investments. Liquid securities can become illiquid during periods of market stress. If a significant amount of the Fund’s securities become illiquid, the Fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Medium- and Lower-Grade Municipal Securities Risk. Medium- and lower-grade municipal securities generally involve more volatility and greater risks, including credit, market, liquidity and management risks, than higher-grade securities. Furthermore, many issuers of medium- and lower-grade securities choose not to have a rating assigned to their obligations. As such, the Fund’s portfolio may consist of a higher portion of unrated securities than an investment company investing solely in higher-grade securities. Unrated securities may not be as attractive to as many buyers as are rated securities, which may have the effect of limiting the Fund’s ability to sell such securities at their fair value. Municipal Issuer Focus Risk. The municipal issuers in which the Fund invests may be located in the same geographic area or may pay their interest obligations from revenue of similar projects, such as hospitals, airports, utility systems and housing finance agencies. This may make the Fund’s investments more susceptible to similar social, economic, political or regulatory occurrences, making the Fund more susceptible to experience a drop in its share price than if the Fund had been more diversified across issuers that did not have similar characteristics. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility. Zero Coupon or Pay-In-Kind Securities Risk. The value, interest rates, and liquidity of non-cash paying instruments, such as zero coupon and pay-in-kind securities, are subject to greater fluctuation than other types of securities. The higher yields and interest rates on pay-in-kind securities reflect the payment deferral and increased credit risk associated with such instruments and that such investments may represent a higher credit risk than loans that periodically pay interest. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. 0.0425 0 0 0 0.0009 0.0007 0.0007 0.0009 0.0009 0.0074 0.0073 0.0073 0.0074 0.0077 0 0.05 0.01 0 Performance Information Performance Information Fund Summary The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in municipal debt securities that (1) pay interest that is excluded from gross income for federal income tax purposes, and (2) do not produce income that will be considered to be an item of preference for purposes of the alternative minimum tax. In complying with this 80% investment requirement, the Fund may invest in derivatives and other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. At least 80% of the Fund’s net assets will normally be invested in investment grade municipal debt securities. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor’s Ratings Services (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by Invesco Advisers, Inc. (Invesco or the Adviser) to be of comparable quality, each at the time of purchase. At the present time, the Fund will not invest in municipal debt securities if the interest on such securities is subject to the federal alternative minimum tax. Municipal securities include debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which is exempt from federal income tax, at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. The principal types of municipal debt securities purchased by the Fund are revenue obligation and general obligation. To meet its investment objective, the Fund invests in different types of general obligation and revenue obligation securities, including fixed and variable rate securities, municipal notes, variable rate demand notes, municipal leases, custodial receipts, and participation certificates. The Fund may also invest in other types of municipal securities. Under normal market conditions, the Fund invests primarily in municipal securities classified as revenue bonds. Up to 20% of the Fund’s net assets may be invested in municipal debt securities that are determined to be below investment grade quality. These types of securities are commonly referred to as junk bonds. With respect to such investments, the Fund has not established any limit on the percentage of its portfolio that may be invested in securities in any one rating category. The Fund may invest more than 25% of its net assets in a segment of the municipal securities market with similar characteristics if the Adviser determines that the yields available from obligations in a particular segment justify the additional risks of a larger investment in such segment. The Fund may not, however, invest more than 25% of its net assets in industrial development revenue bonds issued for companies in the same industry. The Fund may invest in illiquid or thinly traded securities. The Fund may also invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund’s investments may include securities that do not produce immediate cash income, such as zero coupon securities and payment-in-kind securities. The Fund may purchase and sell securities on a when-issued and delayed delivery basis, which means that the Fund may buy or sell a security with payment and delivery taking place in the future. The Fund can invest in inverse floating rate municipal obligations issued in connection with tender option bond programs to generate leverage. The Fund can invest in derivative instruments including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury futures, to gain or reduce exposure to certain asset classes. The Fund can use swap contracts, including interest rate swaps, to hedge its exposure to interest rates. The Adviser actively manages the Fund’s portfolio and adjusts the average maturity of portfolio investments based upon its expectations regarding the direction of interest rates and other economic factors. The Adviser seeks to identify those securities that it believes entail reasonable credit risk considered in relation to the Fund’s investment policies. In selecting securities for investment, the Adviser uses its extensive research capabilities to assess potential investments and considers a number of factors, including general market and economic conditions and interest rate, credit and prepayment risks. Each security considered for investment is subjected to an in-depth credit analysis to evaluate the level of risk it presents. The Fund will attempt to maintain a dollar-weighted average portfolio maturity of between three and five years. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as duration, yield curve positioning, and sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund. The potential for realization of capital gains or losses resulting from possible changes in interest rates will not be a major consideration and frequency of portfolio turnover generally will not be a limiting factor if the Adviser considers it advantageous to purchase or sell securities. The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's and Van Kampen Intermediate Municipal Income Fund's (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section in the prospectus. The Fund's and the predecessor fund's past performance (before and after taxes) is not necessarily an indication of its future performance. The returns shown prior to June 1, 2010 are those of the Class A, Class B, Class C and Class I shares of the predecessor fund. The predecessor fund was advised by Van Kampen Asset Management. Class A, Class B, Class C and Class I shares of the predecessor fund were reorganized into Class A, Class B, Class C and Class Y shares, respectively, of the Fund on June 1, 2010. Class A, Class B, Class C and Class Y shares' returns of the Fund will be different from the predecessor fund as they have different expenses. Predecessor fund performance for Class A and Class B shares has been restated to reflect the Fund's applicable sales charge. Updated performance information is available on the Fund's website at www.invesco.com/us. Investment Objective(s) The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's and Van Kampen Intermediate Municipal Income Fund's (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. The Fund’s investment objective is to provide investors with a high level of current income exempt from federal, New York State and New York City income taxes, consistent with preservation of capital. Principal Risks of Investing in the Fund Fees and Expenses of the Fund As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates at or near zero. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and the Fund’s transaction costs. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by owning the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Also, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject the Fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile. Inverse Floating Rate Obligations Risk. The price of inverse floating rate obligations (inverse floaters) is expected to decline when interest rates rise, and generally will decline further than the price of a bond with a similar maturity. The price of inverse floaters is typically more volatile than the price of bonds with similar maturities. These risks can be particularly high if leverage is used in the formula that determines the interest payable by the inverse floater, which may make the Fund’s returns more volatile and increase the risk of loss. Additionally, these securities may lose some or all of their principal and, in some cases, the Fund could lose money in excess of its investment. Liquidity Risk. The Fund may be unable to sell illiquid investments at the time or price it desires and, as a result, could lose its entire investment in such investments. Liquid securities can become illiquid during periods of market stress. If a significant amount of the Fund’s securities become illiquid, the Fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Medium- and Lower-Grade Municipal Securities Risk. Medium- and lower-grade municipal securities generally involve more volatility and greater risks, including credit, market, liquidity and management risks, than higher-grade securities. Furthermore, many issuers of medium- and lower-grade securities choose not to have a rating assigned to their obligations. As such, the Fund’s portfolio may consist of a higher portion of unrated securities than an investment company investing solely in higher-grade securities. Unrated securities may not be as attractive to as many buyers as are rated securities, which may have the effect of limiting the Fund’s ability to sell such securities at their fair value. Municipal Issuer Focus Risk. The municipal issuers in which the Fund invests may be located in the same geographic area or may pay their interest obligations from revenue of similar projects, such as hospitals, airports, utility systems and housing finance agencies. This may make the Fund’s investments more susceptible to similar social, economic, political or regulatory occurrences, making the Fund more susceptible to experience a drop in its share price than if the Fund had been more diversified across issuers that did not have similar characteristics. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility. Zero Coupon or Pay-In-Kind Securities Risk. The value, interest rates, and liquidity of non-cash paying instruments, such as zero coupon and pay-in-kind securities, are subject to greater fluctuation than other types of securities. The higher yields and interest rates on pay-in-kind securities reflect the payment deferral and increased credit risk associated with such instruments and that such investments may represent a higher credit risk than loans that periodically pay interest. The Fund's and the predecessor fund's past performance (before and after taxes) is not necessarily an indication of its future performance. This table describes the fees and expenses that you may 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 $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). www.invesco.com/us Performance Information The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section in the prospectus. The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available on the Fund's website at www.invesco.com/us. Annual Total Returns The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. Class R5 year-to-date (ended March 31, 2016): 0.92% Best Quarter (ended September 30, 2009): 4.83% Worst Quarter (ended December 31, 2010): -3.11% After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund’s performance to that of a broad-based securities market benchmark, a style specific benchmark and peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section in the prospectus. The Fund’s and Van Kampen High Yield Municipal Fund’s (the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of its future performance. The returns shown prior to June 1, 2010 are those of the Class A shares of the predecessor fund. The predecessor fund was advised by Van Kampen Asset Management. Class R5 shares returns of the Fund will be different from the predecessor fund as they have different expenses. Updated performance information is available on the Fund’s website at www.invesco.com/us. A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” Annual Total Returns 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 investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). Class R5 year-to-date (ended March 31, 2016): 2.09% Best Quarter (ended March 31, 2014): 5.96% Worst Quarter (ended June 30, 2013): -4.61% After-tax returns are shown for Class A shares only and after-tax returns for other classes will vary. Average Annual Total Returns (for the period ended December 31, 2015) 100000 1982-09-22 1982-09-22 1982-09-22 2008-10-03 2003-09-30 0.0047 0.0047 0.0047 0.0047 This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: Fund Summary Average Annual Total Returns (for the period ended December 31, 2015) Shareholder Fees (fees paid directly from your investment) After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans, 529 college savings plans or individual retirement accounts. Class A year-to-date (ended March 31, 2016): 1.61% Best Quarter (ended September 30, 2009): 7.27% Worst Quarter (ended December 31, 2010): -3.22% 0.0025 0.0025 0.01 0 Investment Objective(s) Annual Total Returns 0.0023 0.0023 0.0023 0.0023 The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. The Fund’s investment objective is federal tax-exempt current income. A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” 0.0005 0.0005 0.0005 0.0005 Example. Fees and Expenses of the Fund After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 0.0028 0.0028 0.0028 0.0028 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 investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans, 529 college savings plans or individual retirement accounts. 0.0641 0.0641 0.0596 0.0284 0.0295 0.0446 This table describes the fees and expenses that you may 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 $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). 0.0862 0.0861 0.0808 0.0806 0.0751 0.0719 0.0569 0.0569 0.0566 0.0514 0.0467 0.0397 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.01 0.01 0.0175 0.0075 2012-04-30 2012-04-30 2012-04-30 <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000042 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000043 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000044 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleNoRedemptionTransposed000045 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000047 column period compact * ~</div> Example. The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. www.invesco.com/us 516 595 269 69 You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance. 709 596 523 218 918 715 902 379 100000 1519 1143 1965 847 Shareholder Fees (fees paid directly from your investment) This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. 0.025 0.01 0 0 You would pay the following expenses if you did not redeem your shares: 0 0 0.01 0 Fund Summary Portfolio Turnover. Investment Objective(s) After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans, 529 college savings plans or individual retirement accounts. The Fund's investment objective is to provide investors with a high level of current income exempt from federal income tax, consistent with preservation of capital. Fees and Expenses of the Fund 523 602 278 This table describes the fees and expenses that you may 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 $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). 77 Shareholder Fees (fees paid directly from your investment) Class A year-to-date 516 95 169 69 2016-03-31 0.0161 As with any mutual fund investment, loss of money is a risk of investing. Best Quarter 709 296 523 218 2009-09-30 918 515 902 379 0.0727 Worst Quarter 1519 1143 1965 847 An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. 2010-12-31 -0.0322 You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Invesco Funds. More information about these and other discounts is available from your financial professional and in the section “Shareholder Account Information-Initial Sales Charges (Class A Shares Only)” on page A-3 of the prospectus and the section “Purchase, Redemption and Pricing of Shares-Purchase and Redemption of Shares” on page L-1 of the statement of additional information (SAI). 0.0409 100000 0.0252 0.0238 -0.0446 0.0282 0.1424 0.0152 0.0425 0 0 0 0 0.0352 0.0008 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. 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 7% of the average value of its portfolio. 0.0875 0.0005 730 618 551 240 0.0596 0 0.05 0.01 0 0 0.0005 -0.018 0.0006 0.07 0.0778 0.0011 954 752 949 417 0.0011 0.0287 0.0011 The Fund’s and Van Kampen High Yield Municipal Fund’s (the predecessor fund’s) past performance (before and after taxes) is not necessarily an indication of its future performance. Principal Investment Strategies of the Fund 1598 1225 930 2062 The Fund invests, under normal market conditions, at least 80% of its net assets (plus any borrowings for investment purposes) in New York municipal securities at the time of investment. The policy stated in the foregoing sentence is a fundamental policy of the Fund and may not be changed without shareholder approval of a majority of the Fund’s outstanding voting securities, as defined in the Investment Company Act of 1940, as amended (1940 Act). In complying with this 80% investment requirement, the Fund may invest in derivatives and other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. The Fund invests primarily in investment grade New York municipal securities. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor’s Ratings Services (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by Invesco Advisers, Inc. (Invesco or the Adviser) to be of comparable quality, each at the time of purchase. Municipal securities include debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which is exempt from federal income tax, at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. New York municipal securities are municipal obligations the interest on which is exempt from federal, New York State and New York City income taxes, at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. The principal types of municipal debt securities purchased by the Fund are revenue obligation and general obligation. To meet its investment objective, the Fund invests in different types of general obligation and revenue obligation securities, including fixed and variable rate securities, municipal notes, variable rate demand notes, municipal leases, custodial receipts, and participation certificates. The Fund may invest in these and other types of municipal securities. Under normal market conditions, the Fund invests primarily in municipal securities classified as revenue bonds. The Fund may not invest more than 20% of its net assets in unrated investment grade securities. Under normal market conditions, the Fund may invest up to 20% of its net assets in securities rated below-investment grade at the time of purchase. These securities are commonly referred to as junk bonds. The Fund does not purchase securities that are in default or rated in categories lower than B- by S&P or B3 by Moody’s or unrated securities determined by the Adviser to be of comparable quality. The Fund may invest more than 25% of its net assets in a segment of the municipal securities market with similar characteristics if the Adviser determines that the yields available from obligations in a particular segment justify the additional risks of a larger investment in such segment. The Fund may not, however, invest more than 25% of its net assets in industrial development revenue bonds issued for companies in the same industry. Under normal market conditions, the Fund may invest up to 20% of its net assets in municipal securities that are subject to the federal alternative minimum tax. From time to time, the Fund temporarily may invest up to 10% of its net assets in tax exempt money market funds and such instruments will be treated as investments in municipal securities. The Fund may invest in illiquid or thinly traded securities. The Fund may also invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund’s investments may include securities that do not produce immediate cash income, such as zero coupon securities and payment-in-kind securities. The Fund may purchase and sell securities on a when-issued and delayed delivery basis, which means that the Fund may buy or sell a security with payment and delivery taking place in the future. The Fund can invest in inverse floating rate municipal obligations issued in connection with tender option bond programs to generate leverage. The Fund can invest in derivative instruments including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury futures, to gain or reduce exposure to certain asset classes. The Fund can use swap contracts, including interest rate swaps, to hedge its exposure to interest rates. The Adviser actively manages the Fund’s portfolio and adjusts the average maturity of portfolio investments based upon its expectations regarding the direction of interest rates and other economic factors. The Adviser seeks to identify those securities that it believes entail reasonable credit risk considered in relation to the Fund’s investment policies. In selecting securities for investment, the Adviser uses its extensive research capabilities to assess potential investments and considers a number of factors, including general market and economic conditions and interest rate, credit and prepayment risks. Each security considered for investment is subjected to an in-depth credit analysis to evaluate the level of risk it presents. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as duration, yield curve positioning, and sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund. The potential for realization of capital gains or losses resulting from possible changes in interest rates will not be a major consideration and frequency of portfolio turnover generally will not be a limiting factor if the Adviser considers it advantageous to purchase or sell securities. 0.0273 The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark, a style specific benchmark and peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. 0.0406 Average Annual Total Returns (for the period ended December 31, 2015) 0.0212 www.invesco.com/us 0.1004 0.0314 0.0908 0.0521 You would pay the following expenses if you did not redeem your shares: -0.0054 After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A shares only and after-tax returns for other classes will vary. 0.0468 0.0169 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. 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 14% of the average value of its portfolio. Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” Class R5 year-to-date 2016-03-31 0.0092 0.0046 0.0046 0.0046 0.0046 0.0046 Portfolio Turnover. Best Quarter 2009-09-30 0.0025 0.01 0.01 0 0.0014 0.0483 "Management Fees” and “Other Expenses” have been restated to reflect current fees. Worst Quarter 2010-12-31 0.14 0.0014 0.0014 0.0014 0.0014 0.0014 -0.0311 Principal Risks of Investing in the Fund 0.0008 0.0008 0.0008 0.0008 0.0008 Principal Investment Strategies of the Fund As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Alternative Minimum Tax Risk. A portion of the Fund’s otherwise tax-exempt income may be taxable to those shareholders subject to the federal alternative minimum tax. Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates at or near zero. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and the Fund’s transaction costs. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by owning the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Also, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject the Fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile. Inverse Floating Rate Obligations Risk. The price of inverse floating rate obligations (inverse floaters) is expected to decline when interest rates rise, and generally will decline further than the price of a bond with a similar maturity. The price of inverse floaters is typically more volatile than the price of bonds with similar maturities. These risks can be particularly high if leverage is used in the formula that determines the interest payable by the inverse floater, which may make the Fund’s returns more volatile and increase the risk of loss. Additionally, these securities may lose some or all of their principal and, in some cases, the Fund could lose money in excess of its investment. Liquidity Risk. The Fund may be unable to sell illiquid investments at the time or price it desires and, as a result, could lose its entire investment in such investments. Liquid securities can become illiquid during periods of market stress. If a significant amount of the Fund’s securities become illiquid, the Fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Medium- and Lower-Grade Municipal Securities Risk. Medium- and lower-grade municipal securities generally involve more volatility and greater risks, including credit, market, liquidity and management risks, than higher-grade securities. Furthermore, many issuers of medium- and lower-grade securities choose not to have a rating assigned to their obligations. As such, the Fund’s portfolio may consist of a higher portion of unrated securities than an investment company investing solely in higher-grade securities. Unrated securities may not be as attractive to as many buyers as are rated securities, which may have the effect of limiting the Fund’s ability to sell such securities at their fair value. Municipal Issuer Focus Risk. The municipal issuers in which the Fund invests may be located in the same geographic area or may pay their interest obligations from revenue of similar projects, such as hospitals, airports, utility systems and housing finance agencies. This may make the Fund’s investments more susceptible to similar social, economic, political or regulatory occurrences, making the Fund more susceptible to experience a drop in its share price than if the Fund had been more diversified across issuers that did not have similar characteristics. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. New York and U.S Territories Municipal Securities Risk. The Fund is more susceptible to political, economic, regulatory or other factors affecting issuers of New York municipal securities than a fund that does not focus its investments in such issuers. As with New York municipal securities, events in any of the territories where the Fund is invested may affect the Fund’s investments and its performance. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility. Zero Coupon or Pay-In-Kind Securities Risk. The value, interest rates, and liquidity of non-cash paying instruments, such as zero coupon and pay-in-kind securities, are subject to greater fluctuation than other types of securities. The higher yields and interest rates on pay-in-kind securities reflect the payment deferral and increased credit risk associated with such instruments and that such investments may represent a higher credit risk than loans that periodically pay interest. 0.0022 0.0022 0.0022 0.0022 0.0022 0.0093 0.0168 0.0168 0.0068 0.0082 A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” You could lose money by investing in the Fund. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Money Market Fund Risk. Although the Fund seeks to preserve the value of your investment at $1.00 per share, you may lose money by investing in the Fund. The share price of money market funds can fall below the $1.00 share price. The Fund’s sponsor has no legal obligation to provide financial support to the Fund and you should not rely on or expect that the sponsor will enter into support agreements or take other actions to provide financial support to the Fund or to maintain the Fund’s $1.00 share price at any time. The credit quality of the Fund’s holdings can change rapidly in certain markets, and the default of a single holding could have an adverse impact on the Fund’s share price. The Fund’s share price can also be negatively affected during periods of high redemption pressures, illiquid markets and/or significant market volatility. Furthermore, amendments to money market fund regulations could impact a money market fund’s operations and possibly negatively impact its return. -0.053 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. 0.1683 Principal Risks of Investing in the Fund www.invesco.com/us The Fund's past performance is not necessarily an indication of its future performance. A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” 0.0641 Class R5 year-to-date 2016-03-31 0.0024 0.0024 0.0024 0.0024 0.0209 This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: Best Quarter 0.0025 0 0.01 0 2014-03-31 0.0169 0.0169 0.0207 0.0332 0.0199 0.0104 Example. 0.0596 0.0012 0.0012 0.0012 0.0012 Worst Quarter 0.0397 0.0397 0.0382 0.0551 0.0243 0.0061 0.0036 0.0136 0.0036 2013-06-30 -0.0461 As with any mutual fund investment, loss of money is a risk of investing. 523 102 178 77 An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Class A year-to-date 730 318 551 240 As with any mutual fund investment, loss of money is a risk of investing. 2016-03-31 Performance Information 0 516 671 271 69 84 954 552 949 417 0.0418 0.0416 0.0406 0.0466 0.0298 Best Quarter The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's and Van Kampen New York Tax Free Income Fund's (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section in the prospectus. The Fund's and the predecessor fund's past performance (before and after taxes) is not necessarily an indication of its future performance. The returns shown prior to June 1, 2010 are those of the Class A, Class B and Class C shares of the predecessor fund. The predecessor fund was advised by Van Kampen Asset Management. Class A, Class B and Class C shares of the predecessor fund were reorganized into Class A, Class B and Class C shares, respectively, of the Fund on June 1, 2010. Class A, Class B and Class C shares' returns of the Fund will be different from the predecessor fund as they have different expenses. Predecessor fund performance for Class A and Class B shares has been restated to reflect the Fund's applicable sales charge. Updated performance information is available on the Fund's website at www.invesco.com/us. 2007-09-30 1598 1225 2062 930 709 830 530 218 262 0.0073 Worst Quarter 2015-09-30 2004-07-30 2004-07-30 2004-07-30 An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. 918 1113 913 379 455 0 After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 1519 1788 1987 847 1014 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 investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans, 529 college savings plans or individual retirement accounts. Performance Information The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section in the prospectus. The Fund's and Van Kampen High Yield Municipal Fund's (the predecessor fund's) past performance (before and after taxes) is not necessarily an indication of its future performance. The returns shown prior to June 1, 2010 are those of the Class A, Class B, Class C and Class I shares of the predecessor fund. The predecessor fund was advised by Van Kampen Asset Management. Class A, Class B, Class C and Class I shares of the predecessor fund were reorganized into Class A, Class B, Class C and Class Y shares, respectively, of the Fund on June 1, 2010. Class A, Class B, Class C and Class Y shares' returns of the Fund will be different from the predecessor fund as they have different expenses. Predecessor fund performance for Class A and Class B shares has been restated to reflect the Fund's applicable sales charge. Updated performance information is available on the Fund's website at www.invesco.com/us. Example. This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's and Van Kampen New York Tax Free Income Fund's (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. The Fund's and the predecessor fund's past performance (before and after taxes) is not necessarily an indication of its future performance. You would pay the following expenses if you did not redeem your shares: www.invesco.com/us The Fund's and Van Kampen High Yield Municipal Fund's (the predecessor fund's) past performance (before and after taxes) is not necessarily an indication of its future performance. 516 171 171 69 84 709 530 530 218 262 www.invesco.com/us 311 136 238 37 918 913 913 379 455 440 215 431 116 1519 1788 1987 847 1014 582 300 745 202 993 551 1635 456 <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000066 column period compact * ~</div> Annual Total Returns The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. Annual Total Returns The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. Portfolio Turnover. The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. -0.0081 -0.0081 0.0113 -0.014 0.0182 0.0385 0.0332 0.0423 0.0318 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 13% of the average value of its portfolio. Class A year-to-date (ended March 31, 2016): 2.03% Best Quarter (ended September 30, 2009): 14.93% Worst Quarter (ended December 31, 2008): -18.08% 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 12% of the average value of its portfolio. The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. 0.0482 0.0482 0.0468 0.0552 0.0496 0.0598 0.0551 0.0607 0.0509 0.13 Class A year-to-date (ended March 31, 2016): 1.49% Best Quarter (ended September 30, 2009): 10.15% Worst Quarter (ended December 31, 2008): -7.86% Principal Investment Strategies of the Fund 0.0374 0.0374 0.0382 0.0406 0.0342 0.0432 0.0466 0.0512 0.0412 0.025 0 0 0 The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in municipal debt securities that (1) pay interest that is excluded from gross income for federal income tax purposes, and (2) do not produce income that will be considered to be an item of preference for purposes of the alternative minimum tax. In complying with this 80% investment requirement, the Fund may invest in derivatives and other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. At least 80% of the Fund’s net assets will normally be invested in investment grade municipal debt securities. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor’s Ratings Services (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by Invesco Advisers, Inc. (Invesco or the Adviser) to be of comparable quality, each at the time of purchase. At the present time, the Fund will not invest in municipal debt securities if the interest on such securities is subject to the federal alternative minimum tax. Municipal securities include debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which is exempt from federal income tax, at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. The principal types of municipal debt securities purchased by the Fund are revenue obligation and general obligation. To meet its investment objective, the Fund invests in different types of general obligation and revenue obligation securities, including fixed and variable rate securities, municipal notes, variable rate demand notes, municipal leases, custodial receipts, and participation certificates. The Fund may also invest in other types of municipal securities. Under normal market conditions, the Fund invests primarily in municipal securities classified as revenue bonds. Up to 20% of the Fund’s net assets may be invested in municipal debt securities that are determined to be below investment grade quality. These types of securities are commonly referred to as junk bonds. With respect to such investments, the Fund has not established any limit on the percentage of its portfolio that may be invested in securities in any one rating category. The Fund may invest more than 25% of its net assets in a segment of the municipal securities market with similar characteristics if the Adviser determines that the yields available from obligations in a particular segment justify the additional risks of a larger investment in such segment. The Fund may not, however, invest more than 25% of its net assets in industrial development revenue bonds issued for companies in the same industry. The Fund may invest in illiquid or thinly traded securities. The Fund may also invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund’s investments may include securities that do not produce immediate cash income, such as zero coupon securities and payment-in-kind securities. The Fund may purchase and sell securities on a when-issued and delayed delivery basis, which means that the Fund may buy or sell a security with payment and delivery taking place in the future. The Fund can invest in inverse floating rate municipal obligations issued in connection with tender option bond programs to generate leverage. The Fund can invest in derivative instruments including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury futures, to gain or reduce exposure to certain asset classes. The Fund can use swap contracts, including interest rate swaps, to hedge its exposure to interest rates. The Adviser actively manages the Fund’s portfolio and adjusts the average maturity of portfolio investments based upon its expectations regarding the direction of interest rates and other economic factors. The Adviser seeks to identify those securities that it believes entail reasonable credit risk considered in relation to the Fund’s investment policies. In selecting securities for investment, the Adviser uses its extensive research capabilities to assess potential investments and considers a number of factors, including general market and economic conditions and interest rate, credit and prepayment risks. Each security considered for investment is subjected to an in-depth credit analysis to evaluate the level of risk it presents. The Fund will attempt to maintain a dollar-weighted average portfolio maturity of between three and five years. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as duration, yield curve positioning, and sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund. The potential for realization of capital gains or losses resulting from possible changes in interest rates will not be a major consideration and frequency of portfolio turnover generally will not be a limiting factor if the Adviser considers it advantageous to purchase or sell securities. 0 0.05 0.01 0 0.0048 0.0048 0.0048 0.0048 Portfolio Turnover. 0.0025 0.0025 0.01 0 0.12 0.0015 0.0015 0.0015 0.0015 <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000012 column period compact * ~</div> 0.0002 0.0002 0.0002 0.0002 Principal Risks of Investing in the Fund 0.0017 0.0017 0.0017 0.0017 Principal Investment Strategies of the Fund <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000013 column period compact * ~</div> Under normal market conditions, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in municipal securities at the time of investment. The policy stated in the foregoing sentence is a fundamental policy of the Fund and may not be changed without shareholder approval of a majority of the Fund’s outstanding voting securities, as defined in the Investment Company Act of 1940, as amended (1940 Act). In complying with this 80% investment requirement, the Fund may invest in derivatives and other instruments that have economic characteristics similar to the Fund’s direct investments that are counted toward the 80% investment requirement. Under normal market conditions, Invesco Advisers, Inc. (Invesco or the Adviser) seeks to achieve the Fund’s investment objective by investing at least 80% of the Fund’s net assets in investment grade municipal securities. Investment grade securities are: (i) securities rated BBB- or higher by Standard & Poor’s Ratings Services (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s) or an equivalent rating by another nationally recognized statistical rating organization (NRSRO), (ii) securities with comparable short-term NRSRO ratings, or (iii) unrated securities determined by the Adviser to be of comparable quality, each at the time of purchase. Municipal securities include debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which is exempt from federal income tax at the time of issuance, in the opinion of bond counsel or other counsel to the issuers of such securities. The principal types of municipal debt securities purchased by the Fund are revenue obligations and general obligations. To meet its investment objective, the Fund invests in different types of general obligation and revenue obligation securities, including fixed and variable rate securities, municipal notes, variable rate demand notes, municipal leases, custodial receipts, and participation certificates. The Fund may invest in these and other types of municipal securities. Under normal market conditions, the Fund invests primarily in municipal securities classified as revenue bonds. Under normal market conditions, the Fund may invest up to 20% of its net assets in municipal securities below investment grade. These types of securities are commonly referred to as junk bonds. The Fund does not purchase securities that are in default or rated in categories lower than B- by S&P or B3 by Moody’s or unrated securities determined by the Adviser to be of comparable quality. The Fund may invest all or a substantial portion of its assets in municipal securities that are subject to the federal alternative minimum tax. From time to time, the Fund temporarily may invest up to 10% of its net assets in tax-exempt money market funds and such instruments will be treated as investments in municipal securities. The Fund may invest more than 25% of its net assets in a segment of the municipal securities market with similar characteristics if the Adviser determines that the yields available from obligations in a particular segment justify the additional risks of a larger investment in such segment. The Fund may not, however, invest more than 25% of its net assets in industrial development revenue bonds issued for companies in the same industry. The Fund may invest in securities that are subject to resale restrictions such as those contained in Rule 144A promulgated under the Securities Act of 1933, as amended. The Fund’s investments may include securities that do not produce immediate cash income, such as zero coupon securities and payment-in-kind securities. The Fund may purchase and sell securities on a when-issued and delayed delivery basis, which means that a Fund buys or sells a security with payment and delivery taking place in the future. The Fund can invest in inverse floating rate municipal obligations issued in connection with tender option bond programs to generate leverage. The Fund can invest in derivative instruments, including futures contracts and swap contracts. The Fund can use futures contracts, including Treasury futures, to gain or reduce exposure to certain asset classes. The Fund can use swap contracts, including interest rate swaps, to hedge its exposure to interest rates. The Adviser actively manages the Fund’s portfolio and adjusts the average maturity of portfolio investments based upon its expectations regarding the direction of interest rates and other economic factors. The Adviser seeks to identify those securities that it believes entail reasonable credit risk considered in relation to the Fund’s investment policies. In selecting securities for investment, the Adviser uses its extensive research capabilities to assess potential investments and considers a number of factors, including general market and economic conditions and interest rate, credit and prepayment risks. Each security considered for investment is subjected to an in-depth credit analysis to evaluate the level of risk it presents. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as duration, yield curve positioning, sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund. The potential for realization of capital gains or losses resulting from possible changes in interest rates will not be a major consideration and frequency of portfolio turnover generally will not be a limiting factor if the Adviser considers it advantageous to purchase or sell securities. 0.009 0.009 0.0165 0.0065 As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates at or near zero. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and the Fund’s transaction costs. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by owning the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Also, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject the Fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile. Inverse Floating Rate Obligations Risk. The price of inverse floating rate obligations (inverse floaters) is expected to decline when interest rates rise, and generally will decline further than the price of a bond with a similar maturity. The price of inverse floaters is typically more volatile than the price of bonds with similar maturities. These risks can be particularly high if leverage is used in the formula that determines the interest payable by the inverse floater, which may make the Fund’s returns more volatile and increase the risk of loss. Additionally, these securities may lose some or all of their principal and, in some cases, the Fund could lose money in excess of its investment. Liquidity Risk. The Fund may be unable to sell illiquid investments at the time or price it desires and, as a result, could lose its entire investment in such investments. Liquid securities can become illiquid during periods of market stress. If a significant amount of the Fund’s securities become illiquid, the Fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Medium- and Lower-Grade Municipal Securities Risk. Medium- and lower-grade municipal securities generally involve more volatility and greater risks, including credit, market, liquidity and management risks, than higher-grade securities. Furthermore, many issuers of medium- and lower-grade securities choose not to have a rating assigned to their obligations. As such, the Fund’s portfolio may consist of a higher portion of unrated securities than an investment company investing solely in higher-grade securities. Unrated securities may not be as attractive to as many buyers as are rated securities, which may have the effect of limiting the Fund’s ability to sell such securities at their fair value. Municipal Issuer Focus Risk. The municipal issuers in which the Fund invests may be located in the same geographic area or may pay their interest obligations from revenue of similar projects, such as hospitals, airports, utility systems and housing finance agencies. This may make the Fund’s investments more susceptible to similar social, economic, political or regulatory occurrences, making the Fund more susceptible to experience a drop in its share price than if the Fund had been more diversified across issuers that did not have similar characteristics. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility. Zero Coupon or Pay-In-Kind Securities Risk. The value, interest rates, and liquidity of non-cash paying instruments, such as zero coupon and pay-in-kind securities, are subject to greater fluctuation than other types of securities. The higher yields and interest rates on pay-in-kind securities reflect the payment deferral and increased credit risk associated with such instruments and that such investments may represent a higher credit risk than loans that periodically pay interest. Class A year-to-date -0.0004 -0.0004 -0.0004 -0.0004 2016-03-31 0.0203 <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000014 column period compact * ~</div> Best Quarter 2009-09-30 Principal Risks of Investing in the Fund As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: Alternative Minimum Tax Risk. All or a portion of the Fund’s otherwise tax-exempt income may be taxable to those shareholders subject to the federal alternative minimum tax. Changing Fixed Income Market Conditions Risk. The current low interest rate environment was created in part by the Federal Reserve Board (FRB) and certain foreign central banks keeping the federal funds and equivalent foreign rates at or near zero. Increases in the federal funds and equivalent foreign rates may expose fixed income markets to heightened volatility and reduced liquidity for certain fixed income investments, particularly those with longer maturities. In addition, decreases in fixed income dealer market-making capacity may also potentially lead to heightened volatility and reduced liquidity in the fixed income markets. As a result, the value of the Fund’s investments and share price may decline. Changes in central bank policies could also result in higher than normal shareholder redemptions, which could potentially increase portfolio turnover and the Fund’s transaction costs. Debt Securities Risk. The prices of debt securities held by the Fund will be affected by changes in interest rates, the creditworthiness of the issuer and other factors. An increase in prevailing interest rates typically causes the value of existing debt securities to fall and often has a greater impact on longer-duration debt securities and higher quality debt securities. Falling interest rates will cause the Fund to reinvest the proceeds of debt securities that have been repaid by the issuer at lower interest rates. Falling interest rates may also reduce the Fund’s distributable income because interest payments on floating rate debt instruments held by the Fund will decline. The Fund could lose money on investments in debt securities if the issuer or borrower fails to meet its obligations to make interest payments and/or to repay principal in a timely manner. Changes in an issuer’s financial strength, the market’s perception of such strength or in the credit rating of the issuer or the security may affect the value of debt securities. The Adviser’s credit analysis may fail to anticipate such changes, which could result in buying a debt security at an inopportune time or failing to sell a debt security in advance of a price decline or other credit event. Derivatives Risk. The value of a derivative instrument depends largely on (and is derived from) the value of an underlying security, currency, commodity, interest rate, index or other asset (each referred to as an underlying asset). In addition to risks relating to the underlying assets, the use of derivatives may include other, possibly greater, risks, including counterparty, leverage and liquidity risks. Counterparty risk is the risk that the counterparty to the derivative contract will default on its obligation to pay the Fund the amount owed or otherwise perform under the derivative contract. Derivatives create leverage risk because they do not require payment up front equal to the economic exposure created by owning the derivative. As a result, an adverse change in the value of the underlying asset could result in the Fund sustaining a loss that is substantially greater than the amount invested in the derivative, which may make the Fund’s returns more volatile and increase the risk of loss. Derivative instruments may also be less liquid than more traditional investments and the Fund may be unable to sell or close out its derivative positions at a desirable time or price. This risk may be more acute under adverse market conditions, during which the Fund may be most in need of liquidating its derivative positions. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Also, derivatives used for hedging or to gain or limit exposure to a particular market segment may not provide the expected benefits, particularly during adverse market conditions. High Yield Debt Securities (Junk Bond) Risk. Investments in high yield debt securities (“junk bonds”) and other lower-rated securities will subject the Fund to substantial risk of loss. These securities are considered to be speculative with respect to the issuer’s ability to pay interest and principal when due, are more susceptible to default or decline in market value and are less liquid than investment grade debt securities. Prices of high yield debt securities tend to be very volatile. Inverse Floating Rate Obligations Risk. The price of inverse floating rate obligations (inverse floaters) is expected to decline when interest rates rise, and generally will decline further than the price of a bond with a similar maturity. The price of inverse floaters is typically more volatile than the price of bonds with similar maturities. These risks can be particularly high if leverage is used in the formula that determines the interest payable by the inverse floater, which may make the Fund’s returns more volatile and increase the risk of loss. Additionally, these securities may lose some or all of their principal and, in some cases, the Fund could lose money in excess of its investment. Liquidity Risk. The Fund may be unable to sell illiquid investments at the time or price it desires and, as a result, could lose its entire investment in such investments. Liquid securities can become illiquid during periods of market stress. If a significant amount of the Fund’s securities become illiquid, the Fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices. Management Risk. The Fund is actively managed and depends heavily on the Adviser’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective. Market Risk. The market values of the Fund’s investments, and therefore the value of the Fund’s shares, will go up and down, sometimes rapidly or unpredictably. Market risk may affect a single issuer, industry or section of the economy, or it may affect the market as a whole. Individual stock prices tend to go up and down more dramatically than those of certain other types of investments, such as bonds. During a general downturn in the financial markets, multiple asset classes may decline in value. When markets perform well, there can be no assurance that specific investments held by the Fund will rise in value. Medium- and Lower-Grade Municipal Securities Risk. Medium- and lower-grade municipal securities generally involve more volatility and greater risks, including credit, market, liquidity and management risks, than higher-grade securities. Furthermore, many issuers of medium- and lower-grade securities choose not to have a rating assigned to their obligations. As such, the Fund’s portfolio may consist of a higher portion of unrated securities than an investment company investing solely in higher-grade securities. Unrated securities may not be as attractive to as many buyers as are rated securities, which may have the effect of limiting the Fund’s ability to sell such securities at their fair value. Municipal Issuer Focus Risk. The municipal issuers in which the Fund invests may be located in the same geographic area or may pay their interest obligations from revenue of similar projects, such as hospitals, airports, utility systems and housing finance agencies. This may make the Fund’s investments more susceptible to similar social, economic, political or regulatory occurrences, making the Fund more susceptible to experience a drop in its share price than if the Fund had been more diversified across issuers that did not have similar characteristics. Municipal Securities Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives, and the issuer’s regional economic conditions may affect the municipal security’s value, interest payments, repayment of principal and the Fund’s ability to sell the security. Failure of a municipal security issuer to comply with applicable tax requirements may make income paid thereon taxable, resulting in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on municipal securities or otherwise adversely affect the current federal or state tax status of municipal securities. Variable-Rate Demand Notes Risk. The absence of an active secondary market for certain variable and floating rate notes could make it difficult to dispose of these instruments, which could result in a loss. When-Issued, Delayed Delivery and Forward Commitment Risks. When-issued and delayed delivery transactions subject the Fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the Fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on the Fund because the Fund commits to purchase securities that it does not have to pay for until a later date, which increases the Fund’s overall investment exposure and, as a result, its volatility. Zero Coupon or Pay-In-Kind Securities Risk. The value, interest rates, and liquidity of non-cash paying instruments, such as zero coupon and pay-in-kind securities, are subject to greater fluctuation than other types of securities. The higher yields and interest rates on pay-in-kind securities reflect the payment deferral and increased credit risk associated with such instruments and that such investments may represent a higher credit risk than loans that periodically pay interest. 0.1493 Worst Quarter <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleNoRedemptionTransposed000015 column period compact * ~</div> 2008-12-31 -0.1808 As with any mutual fund investment, loss of money is a risk of investing. 0.0061 0.0161 0.0086 0.0086 Performance Information An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's and Van Kampen Municipal Income Fund's (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section in the prospectus. The Fund's and the predecessor fund's past performance (before and after taxes) is not necessarily an indication of its future performance. The returns shown prior to June 1, 2010 are those of the Class A, Class B, Class C and Class I shares of the predecessor fund. The predecessor fund was advised by Van Kampen Asset Management. Class A, Class B, Class C and Class I shares of the predecessor fund were reorganized into Class A, Class B, Class C and Class Y shares, respectively, of the Fund on June 1, 2010. Class A, Class B, Class C and Class Y shares' returns of the Fund will be different from the predecessor fund as they have different expenses. Predecessor fund performance for Class A and Class B shares has been restated to reflect the Fund's applicable sales charge. Updated performance information is available on the Fund's website at www.invesco.com/us. 62 264 588 336 Class A year-to-date Average Annual Total Returns (for the period ended December 31, 2015) 526 583 516 204 Performance Information 732 695 893 358 2016-03-31 0.0149 1327 1104 1951 807 <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000016 column period compact * ~</div> Best Quarter 336 88 164 62 2009-09-30 As with any mutual fund investment, loss of money is a risk of investing. 526 283 516 204 An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. For more information on the benchmarks used see the “Benchmark Descriptions” section in the prospectus. The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available on the Fund's website at www.invesco.com/us. 0.1015 732 495 893 358 Worst Quarter 1327 1104 1951 807 2008-12-31 <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000017 column period compact * ~</div> -0.0786 The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. The Fund's past performance (before and after taxes) is not necessarily an indication of its future performance. The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund's and Van Kampen Municipal Income Fund's (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. 0.0028 0.0028 0.0133 -0.0204 0.0116 0.0322 0.0332 0.032 0.0262 www.invesco.com/us 0.0555 www.invesco.com/us The Fund's and the predecessor fund's past performance (before and after taxes) is not necessarily an indication of its future performance. 0.0411 0.0411 0.0395 0.0424 0.0387 0.049 0.0551 0.0474 0.0421 0.0019 <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000072 column period compact * ~</div> Annual Total Returns 0.0395 0.0394 0.0387 0.0345 0.0404 0.0448 0.0466 0.0471 0.0392 Annual Total Returns The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. 1993-05-28 1993-05-28 1993-05-28 1993-05-28 1993-10-19 2005-08-12 -0.1371 The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000073 column period compact * ~</div> Class A year-to-date (ended March 31, 2016): 1.87% Best Quarter (ended September 30, 2009): 11.97% Worst Quarter (ended December 31, 2008): -9.68% The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. 0.0243 0.0177 0.0312 0.0125 0.0441 0.0652 0.0284 0.0295 0.0446 Average Annual Total Returns (for the period ended December 31, 2015) 0.2201 0.0177 0.1148 0.0852 0.0726 0.0725 0.0692 0.0798 0.0741 0.0846 0.0806 0.0751 0.0719 0.0457 0.0457 0.047 0.0466 0.0426 0.0514 0.0467 0.0397 -0.053 -0.0071 -0.0071 0.0137 -0.0204 0.0193 0.0396 0.0382 0.0332 0.0421 0.0342 0.0515 0.0515 0.05 0.0494 0.0524 0.0635 0.0613 0.0551 0.0657 0.0603 0.0525 The bar chart does not reflect sales loads. If it did, the annual total returns shown would be lower. 0.036 0.036 0.0377 0.0343 0.0326 0.0432 0.0408 0.0466 0.0523 0.0453 <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000076 column period compact * ~</div> 1986-01-02 1986-01-02 1986-01-02 1992-07-20 1993-12-10 2006-03-01 Class A2 year-to-date (ended March 31, 2016): 0.91% Best Quarter (ended September 30, 2009): 4.83% Worst Quarter (ended December 31, 2010): -3.10% <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000077 column period compact * ~</div> 0.1141 0.0359 0.0268 0.0428 0.0209 Average Annual Total Returns (for the period ended December 31, 2015) 0.1006 0.0313 0.0912 0.0526 -0.0052 0.0465 0.0165 0.0822 -0.0161 -0.2401 0.3052 0.0435 0.113 0.1392 -0.0556 0.1655 0.0626 Class A2 year-to-date 2016-03-31 0.0091 Best Quarter 2009-09-30 0.0483 Worst Quarter 2010-12-31 -0.031 After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A shares only and after-tax returns for other classes will vary. <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000056 column period compact * ~</div> After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A shares only and after-tax returns for other classes will vary. Average Annual Total Returns (for the period ended December 31, 2015) After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A shares only and after-tax returns for other classes will vary. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A shares only and after-tax returns for other classes will vary. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A shares only and after-tax returns for other classes will vary. 0.0061 0.0061 0.0143 -0.0116 -0.0035 0.0174 0.0332 0.0199 0.0104 2010-06-01 1994-07-29 1994-07-29 1994-07-29 1994-07-29 1994-07-29 0.0378 0.0378 0.0367 0.0319 0.0293 0.0398 0.0551 0.0243 0.0409 0.0407 0.04 0.0366 0.0315 0.0418 0.0466 0.0298 1990-08-01 1990-08-01 1990-08-01 1992-08-24 1993-08-13 2013-07-15 2005-08-12 After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A shares only and after-tax returns for other classes will vary. 1987-05-11 1987-05-11 1987-05-11 2002-10-31 2013-06-28 2008-10-03 After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local 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 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 Class A2 shares only and after-tax returns for other classes will vary. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000082 column period compact * ~</div> 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 investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000083 column period compact * ~</div> After-tax returns are shown for Class A2 shares only and after-tax returns for other classes will vary. <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000084 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000086 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000087 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000026 column period compact * ~</div> 0.0573 -0.0133 -0.1644 0.241 0.024 0.1092 0.0894 -0.0347 0.11 0.037 <div style="display:none">~ http://www.invesco.com/role/ScheduleShareholderFees000032 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpenses000033 column period compact * ~</div> Class A year-to-date <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000034 column period compact * ~</div> 2016-03-31 0.0187 Best Quarter 2009-09-30 <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000036 column period compact * ~</div> 0.1197 Worst Quarter 2008-12-31 -0.0968 <div style="display:none">~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposed000037 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsBarChart000046 column period compact * ~</div> <div style="display:none">~ http://www.invesco.com/role/ScheduleExpenseExampleTransposed000074 column period compact * ~</div> The Fund has elected to use three benchmark indices: S&P Municipal Bond High Yield Index, Custom Invesco High Yield Municipal Index and the Lipper High Yield Municipal Debt Funds Index. The Lipper High Yield Municipal Debt Funds Index is the peer group benchmark and is the proxy that most appropriately reflects the Fund's investable universe. The Fund has elected to use three benchmark indices: S&P Municipal Bond High Yield Index, Custom Invesco High Yield Municipal Index and the Lipper High Yield Municipal Debt Funds Index. The Lipper High Yield Municipal Debt Funds Index is the peer group benchmark and is the proxy that most appropriately reflects the Fund's investable universe. A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” "Management Fees” and “Other Expenses” have been restated to reflect current fees. A contingent deferred sales charge may apply in some cases. See “Shareholder Account Information-Contingent Deferred Sales Charges (CDSC).” Class Y shares' performance shown prior to the inception date is that of Class A shares and includes the 12b-1 fees applicable to Class A shares. Class A shares' performance reflects any applicable fee waivers and/or expense reimbursements. Class R5 shares’ performance shown prior to the inception date is that of the Fund’s and the predecessor fund’s Class A shares and includes the 12b-1 fees applicable to Class A shares. Class A shares’ performance reflects any applicable fee waivers and/or expense reimbursements. The inception date of the Fund’s Class A shares is January 2, 1986. The Fund has elected to use three benchmark indices: S&P Municipal Bond High Yield Index, Custom Invesco High Yield Municipal Index and the Lipper High Yield Municipal Debt Funds Index. The Lipper High Yield Municipal Debt Funds Index is the peer group benchmark and is the proxy that most appropriately reflects the Fund’s investable universe. Investor Class shares' performance shown prior to the inception date is that of the Fund's and the predecessor fund's Class A shares and includes the 12b-1 fees applicable to Class A shares. Class A shares' performance reflects any applicable fee waivers and/or expense reimbursements. Class Y shares' performance shown prior to the inception date is that of the predecessor fund's Class A shares and includes the 12b-1 fees applicable to Class A shares. Class A shares' performance reflects any applicable fee waivers and/or expense reimbursements. The Fund has elected to use three benchmark indices: S&P Municipal Bond High Yield Index, Custom Invesco High Yield Municipal Index and the Lipper High Yield Municipal Debt Funds Index. The Lipper High Yield Municipal Debt Funds Index is the peer group benchmark and is the proxy that most appropriately reflects the Fund's investable universe. Invesco Advisers, Inc. (Invesco or the Adviser) has contractually agreed to waive advisory fees and/or reimburse expenses to the extent necessary to limit Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement (excluding certain items discussed in the SAI) of Class A, Class B, Class C and Class Y shares to 0.84%, 1.59%, 1.59% and 0.59%, respectively, of the Fund's average daily net assets (the “expense limits”). Unless Invesco continues the fee waiver agreement, it will terminate on June 30, 2017. During its term, the fee waiver agreement cannot be terminated or amended to increase the expense limits without approval of the Board of Trustees. Class C shares' performance shown prior to the inception date is that of Class A2 shares, restated to reflect the 12b-1 fees applicable to Class C shares. Class A2 shares' performance reflects any applicable fee waivers and/or expense reimbursements. Class Y shares' performance shown prior to the inception date is that of Class A2 shares. Class A2 shares' performance reflects any applicable fee waivers and/or expense reimbursements.