what is the fers annuity
Annuity: AGE 62+. For retirement at age 62+ with 20+ years, the annuity is 10% more. Annuity supplement. If all your earnings have been under the FERS system, and none of your FERS earnings were prior to age 22, then you can divide the age-62 Social Security estimated benefit by 40 and multiply the result by years of FERS service.