"...Who is eligible for the SRS? The SRS is paid to FERS employees who retire on an immediate, unreduced annuity before reaching age 62, when they become eligible for Social Security benefits—if you retire at 62 or above, you are immediately eligible and thus no SRS will be paid—and ends when they reach that age..."
"...you are eligible for what is known as the Special Retirement Supplement or the Annuity Supplement if: you have..."
According to OPM, the supplement is computed as if you were age 62 and fully insured for a social security benefit when the supplement begins. By law, the Office of Personnel Management (OPM) first estimates what your full career (40 years) social security benefit would be. Then we calculate the amount of your civilian service under FERS and reduce the estimated full career social security benefit accordingly. For example, if your estimated full career social security benefit would be $1,000 and you had worked 30 years under FERS, we would divide 30 by 40 (.75) and multiply ($1,000 x .75 = $750). The result would be your special retirement supplement, prior to any reductions...."
