| Summary Prospectus Supplement | March 15, 2023 |
Putnam Global Income Trust
Summary Prospectus dated February 28, 2023
Effective March 31, 2023, the section Your fund’s management is replaced in its entirety with the following:
Your fund's management
Investment advisor
Putnam Investment Management, LLC
Portfolio managers
| Michael Salm, Chief Investment Officer, Fixed Income, portfolio manager of the fund since 2007 |
| Norman Boucher, Portfolio Manager, portfolio manager of the fund since 2022 |
| Albert Chan, Head of Portfolio Construction, portfolio manager of the fund since 2020 |
| Robert Davis, Portfolio Manager, portfolio manager of the fund since 2017 |
Sub-advisor
Putnam Investments Limited*
*Though the investment advisor has retained the services of Putnam Investments Limited (PIL), PIL does not currently manage any assets of the fund.
333250 - 3/23