Summary Prospectus by Investment Company (Form 497K)

SUPPLEMENT DATED JUNE 29, 2026 TO THE CURRENT
SUMMARY AND STATUTORY PROSPECTUSES AND STATEMENTS OF ADDITIONAL INFORMATION FOR:

Invesco Global Strategic Income Fund
Invesco International Bond Fund
Invesco V.I. Global Strategic Income Fund

(each a "Fund" and collectively the "Funds")

This supplement amends the Summary Prospectuses, Statutory Prospectuses and Statements of Additional Information of the above referenced Funds and is in addition to any other supplement(s). You should read this supplement in conjunction with the Summary Prospectuses, Statutory Prospectuses and Statements of Additional Information and retain it for future reference.

Effective June 29, 2026:

1. The following information replaces the seventh paragraph appearing under the heading "Principal Investment Strategies of the Fund" in the prospectuses:

The Fund may invest up to 25% of its total assets in a Cayman Islands exempted company that is wholly-owned and controlled by the Fund (the Subsidiary). The Subsidiary invests in commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts), commodity-linked notes and in Regulation S securities. Regulation S securities are securities of U.S. and non-U.S. issuers that are issued through private offerings without registration with the Securities and Exchange Commission pursuant to Regulation S under the Securities Act. The Subsidiary may also invest in certain fixed-income securities and other investments that may serve as margin or collateral for its derivatives positions. The Fund applies its investment restrictions and compliance policies and procedures, on a look-through basis, to the Subsidiary. Since the Fund may invest a substantial portion of its assets in the Subsidiary, which may hold certain of the investments described in this prospectus, the Fund may be considered to be investing indirectly in those investments through its Subsidiary. Therefore, references in this prospectus to investments by the Fund also may be deemed to include the Fund's indirect investments through the Subsidiary.

2. The following information is added under the heading "Principal Risks of Investing in the Fund" in the Summary Prospectuses:

Commodity Risk. The Fund may have investment exposure to the commodities markets, which may subject the Fund to greater volatility than investments in traditional securities, such as stocks and bonds. Volatility in the commodities markets may be caused by changes in overall market movements, domestic and foreign political and economic events and policies, war, acts of terrorism, changes in domestic or foreign interest rates and/or investor expectations concerning interest rates, domestic and foreign inflation rates, investment and trading activities of mutual funds, hedge funds and commodities funds, and factors such as drought, floods, weather, livestock disease, embargoes, tariffs and other regulatory developments or supply and demand disruptions. Because the Fund's performance may be linked to the performance of volatile commodities, investors should be willing to assume the risks of potentially significant fluctuations in the value of the Fund's shares.

Commodities Tax Risk. The tax treatment of commodity-linked derivative instruments may be adversely affected by changes in legislation, regulations or other legally binding authority. If, as a result of any such adverse action, the income of the Fund from certain commodity-linked derivatives was treated as non-qualifying income, the Fund might fail to qualify as a regulated investment company and be subject to federal income tax at the Fund level. As a result of an announcement by the Internal Revenue Service (IRS), the Fund intends to invest in commodity-linked notes: (a) directly, generally only to the extent that it obtains an opinion of counsel confirming that income from such investments should be qualifying income because such commodity-linked notes constitute securities under section 2(a)(36) of the 1940 Act or (b) indirectly through the Subsidiary. Should the IRS issue further guidance, or Congress enact legislation, that adversely affects the tax treatment of the Fund's use of commodity-linked notes or the Subsidiary, it could, among other consequences, limit the Fund's ability to pursue its investment strategy.

Commodity-Linked Notes Risk. Commodity-linked notes have characteristics of both a debt security and a derivative; typically, they are issued by a bank at a specified face value and pay a fixed or floating rate linked to the performance of an underlying asset, such as commodity indices, particular commodities or commodity futures contracts. The value of the commodity-linked notes the Fund buys may fluctuate significantly because the values of the underlying assets to which they are linked are themselves volatile. Investments in commodity-linked notes may also be subject to additional risks, such as non-payment of interest and loss of principal, counterparty risk, lack of a secondary market and risk of greater volatility than traditional equity and debt securities. Additionally, certain commodity-linked notes employ "economic" leverage by requiring payment by the issuer of an amount that is a multiple of the price increase or decrease of the underlying commodity, commodity

index, or other economic variable. Such economic leverage will increase the volatility of the value of these commodity-linked notes and the Fund to the extent it invests in such notes.

3. The following information replaces the fourteenth paragraph appearing under the heading "Investment Objective(s), Strategies, Risks and Portfolio Holdings - Objective(s) and Strategies" in the Statutory Prospectuses of Invesco Global Strategic Income Fund and Invesco V.I. Global Strategic Income Fund and the thirteenth paragraph appearing under the heading "Investment Objective(s), Strategies, Risks and Portfolio Holdings - Objective(s) and Strategies" in the Statutory Prospectus of Invesco International Bond Fund:

The Fund may invest up to 25% of its total assets in a Cayman Islands exempted company that is wholly-owned and controlled by the Fund (the Subsidiary). The Subsidiary invests in commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts), commodity-linked notes and in Regulation S securities. Regulation S securities are securities of U.S. and non-U.S. issuers that are issued through private offerings without registration with the Securities and Exchange Commission pursuant to Regulation S under the Securities Act. The Subsidiary may also invest in certain fixed-income securities and other investments (such as cash, cash equivalents and affiliated money market funds) that may serve as margin or collateral for its derivatives positions. Investments in the Subsidiary are intended to provide the Fund with exposure to (1) commodities market returns within the limitations of the federal tax requirements that apply to the Fund and (2) Regulation S securities. In managing the Subsidiary's portfolio, the Adviser is subject to the same operational guidelines that apply to the management of the Fund. The Fund applies its investment restrictions and compliance policies and procedures, on a look-through basis, to the Subsidiary. The Fund's investment in the Subsidiary may vary based on the portfolio managers' use of different types of commodity-linked derivatives, fixed-income securities, foreign securities and other investments. Since the Fund may invest a substantial portion of its assets in the Subsidiary, which may hold certain of the investments described in this prospectus, the Fund may be considered to be investing indirectly in those investments through its Subsidiary. Therefore, references in this prospectus to investments by the Fund also may be deemed to include the Fund's indirect investments through the Subsidiary.

4. The following information is added under the heading "Investment Objective(s), Strategies, Risks and Portfolio Holdings - Risks" in the Statutory Prospectuses:

Commodity Risk. The Fund may have investment exposure to the commodities markets, which may subject the Fund to greater volatility than investments in traditional securities, such as stocks and bonds. The commodities markets may fluctuate widely based on a variety of factors, including changes in overall market movements, domestic and foreign political and economic events and policies, war, acts of terrorism, changes in domestic or foreign interest rates and/or investor expectations concerning interest rates, domestic and foreign inflation rates and investment and trading activities of mutual funds, hedge funds and commodities funds. Prices of various commodities may also be affected by factors such as drought, floods, weather, livestock disease, embargoes, tariffs and other regulatory developments. The prices of commodities can also fluctuate widely due to supply and demand disruptions in major producing or consuming regions and changes in transportation, handling and storage costs. Certain commodities may be produced in a limited number of countries and may be controlled by a small number of producers or groups of producers. As a result, political, economic and supply related events in such countries could have a disproportionate impact on the prices of such commodities. Because the Fund's performance may be linked to the performance of volatile commodities, investors should be willing to assume the risks of potentially significant fluctuations in the value of the Fund's shares.

Commodities Tax Risk. The tax treatment of commodity-linked derivative instruments may be adversely affected by changes in legislation, regulations or other legally binding authority. If, as a result of any such adverse action, the income of the Fund from certain commodity-linked derivatives was treated as non-qualifying income, the Fund might fail to qualify as a regulated investment company and be subject to federal income tax at the Fund level. As a regulated investment company, the Fund must derive at least 90% of its gross income for each taxable year from sources treated as qualifying income under the Internal Revenue Code of 1986, as amended (the Code). Accordingly, the Fund may invest in certain commodity-linked notes: (a) directly, generally only to the extent that it obtains an opinion of counsel confirming that income from such investments should be qualifying income because such commodity-linked notes constitute securities under section 2(a)(36) of the 1940 Act or (b) indirectly through the Subsidiary. Should the IRS issue further guidance, or Congress enact legislation, that adversely affects the tax treatment of the Fund's use of commodity-linked notes or the Subsidiary, it could limit the Fund's ability to pursue its investment strategy and the Fund might not qualify as a regulated investment company for one or more years. In this event, the Fund's Board of Trustees may authorize a significant change in investment strategy or other action. In lieu of potential disqualification, the Fund is permitted to pay a tax for certain failures to satisfy the income requirement, which, in general, are limited to those due to reasonable cause and not willful neglect. The Fund also may incur transaction and other costs to comply with any new or additional guidance from the IRS.

Commodity-Linked Notes Risk. In addition to risks associated with the underlying commodities, investments in commodity-linked notes may be subject to additional risks, such as non-payment of interest and loss of principal, counterparty risk, lack of a secondary market and risk of greater volatility than traditional equity and debt securities. The Fund might not receive all or a portion of the interest due on its investment or a return of its principal if there is a loss of value of the commodity, commodity index or other economic variable to which the interest is linked. A liquid secondary market may not exist for certain commodity-linked notes, which may make it difficult for the Fund to sell them at an acceptable time or price or to accurately value them. Commodity-linked notes are also subject to counterparty risk, which is the risk that the issuer of the commodity-linked note will default or become bankrupt and not make timely payment of principal and interest. The value of the commodity-linked notes the Fund buys may fluctuate significantly because the values of the underlying investments to which they are linked are themselves volatile. Additionally, certain commodity-linked notes employ "economic" leverage by requiring payment by the issuer of an amount that is a multiple of the price increase or decrease of the underlying commodity, commodity index, or other economic variable. For example, the value of a three-times leveraged note will change by a magnitude of three for every percentage change (positive or negative) in the value of the underlying commodity, index or other economic variable. Such economic leverage will increase the volatility of the value of these commodity-linked notes and the Fund to the extent it invests in such notes.

5. The following information replaces the sixth paragraph appearing under the heading "DESCRIPTION OF THE FUNDS AND THEIR INVESTMENTS AND RISKS - Investment Strategies and Risks" in the SAI for Invesco Global Strategic Income Fund and Invesco International Bond Fund:

Invesco Global Strategic Income Fund and Invesco International Bond Fund will seek to gain exposure to commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts), commodity-linked notes and Regulation S securities through investments in wholly-owned subsidiaries of the Funds organized under the laws of the Cayman Islands (the Subsidiaries). Each Fund may invest up to 25% of its total assets in its respective Subsidiary.

6. The following information replaces the third paragraph appearing under the heading "DESCRIPTION OF THE FUNDS AND THEIR INVESTMENTS AND RISKS - Investment Strategies and Risks - Debt Investments - Investments in Wholly-Owned Subsidiary" in the SAI for Invesco Global Strategic Income Fund and Invesco International Bond Fund:

Invesco Global Strategic Income Fund and Invesco International Bond Fund may invest up to 25% of their total assets in their respective wholly-owned and controlled Subsidiary, which is expected to invest in commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts), commodity-linked notes and Regulation S securities, as well as fixed income securities and other investments (such as cash, cash equivalents and affiliated money market funds) intended to serve as margin or collateral for each Subsidiary's derivative positions. As a result, the Funds may be considered to be investing indirectly in these investments through their respective Subsidiary.

7. The following information replaces the fourth paragraph appearing under the heading "DESCRIPTION OF THE FUNDS AND THEIR INVESTMENTS AND RISKS - Investment Strategies and Risks" in the SAI for Invesco V.I. Global Strategic Income Fund:

Invesco V.I. Balanced-Risk Allocation Fund will seek to gain exposure to commodities primarily through investments in the Invesco Cayman Commodity Fund IV Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the Subsidiary). Invesco V.I. Global Strategic Income Fund will seek to gain exposure to commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts) and Regulation S securities through investments in a wholly owned subsidiary of the Fund organized under the laws of the Cayman Islands (the Subsidiary).

8. The following information replaces the first paragraph appearing under the heading "DESCRIPTION OF THE FUNDS AND THEIR INVESTMENTS AND RISKS - Investment Strategies and Risks - Debt Investments - Investment in Wholly-Owned Subsidiary" in the SAI for Invesco V.I. Global Strategic Income Fund:

Invesco V.I. Balanced-Risk Allocation Fund may invest in its wholly-owned and controlled Subsidiary, which is expected to invest primarily in commodity swaps and futures and option contracts, as well as fixed income securities and other investments intended to serve as margin or collateral for the Subsidiary's derivative positions. Invesco V.I. Global Strategic Income Fund's subsidiary invests in commodity-linked derivatives (including commodity futures, financial futures, options and swap contracts) and Regulation S securities, as well as fixed income securities and other investments (such as cash, cash equivalents and affiliated money market funds) intended to serve as margin or collateral for the Subsidiary's derivative positions. As a result, Invesco V.I. Balanced-Risk Allocation Fund and Invesco V.I. Global Strategic Income Fund may be considered to be investing indirectly in these investments through their respective Subsidiary.