The investors, which include asset managers Nordea, Royal London and several large European and U.S. pension funds, will require Amazon to issue a transparency report in accordance with the Global Reporting Initiative's (GRI) tax standard, according to the newspaper.
Amazon did not immediately respond to a request for comment.
The letter was signed by more than 100 groups, including the New York City Office of the Comptroller and UK's largest private pension fund Universities Superannuation Scheme, the FT report said.
In December, Greater Manchester Pension Fund and Oblate International Pastoral Investment Trust also filed a shareholder proposal urging Amazon to implement the new GRI Tax Standard, including public country-by-country reporting of financial, tax and worker information.