Q. How would OPM know if an annuitant made extra money during the year as to cancel or reduce his supplement amount as it applies to the earning limitation. “A FERS Annuity Supplement is payable to an employee who has completed at least one calendar year of FERS service when he reaches minimum retirement age MRA is age 55 to 57, depending on date of birth. The annuity supplement is payable until eligibility for Social Security begins at age 62, subject to an earnings limitation.” A. Every year OPM will require you to fill out an Annuity Supplement Earnings report…