J.P. MORGAN INCOME FUNDS

JPMorgan Global Bond Opportunities Fund

(All Share Classes)

(a series of JPMorgan Trust I)

Supplement dated September 18, 2019 to the

Summary Prospectuses and Prospectuses dated July 1, 2019, as supplemented

Effective immediately, the disclosures in the first paragraph under the “Risk/Return Summary – What are the Fund’s main investment strategies?” and the “More About the Funds – Additional Information about the Funds’ Investment Strategies – Global Bond Opportunities Fund” sections are hereby deleted and replaced with the following to provide information on how the adviser integrates environmental, social and governance factors into its investment process:

The Fund seeks to achieve its investment objective by investing across sectors in developed and emerging markets located around the world. The Fund is flexible and opportunistic. Because the Fund is not managed to a benchmark, J.P. Morgan Investment Management Inc. (JPMIM or the adviser) has broad discretion to shift the Fund’s exposure to strategies, sectors, countries or currencies based on changing market conditions and its view of the best mix of investment opportunities. In buying and selling investments for the Fund, the adviser allocates the Fund’s exposure to strategies, sectors, countries, and currencies based on the adviser’s analysis of individual investments and broader economic conditions in individual countries, regions and the world. This allows the adviser to take a conservative approach during uncertain periods and move into higher risk opportunities as market conditions improve, which may result in the Fund focusing in only a few markets and sectors. The Fund’s focus may change from time to time. As part of its investment process, the adviser considers certain environmental, social and governance factors that it believes could have a material negative or positive impact on the risk profiles of certain securities or countries in which the Fund may invest. These determinations may not be conclusive and securities or countries that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities that may be positively impacted by such factors.

INVESTORS SHOULD RETAIN THIS SUPPLEMENT WITH THE

SUMMARY PROSPECTUSES AND PROSPECTUSES FOR FUTURE REFERENCE

SUP-GBO-ESG-919