https://www.opm.gov/retirement-services/fers-information/computation/
FERS Basic Annuity Formula
| Age Formula | |
|---|---|
| Under Age 62 at Separation for Retirement, OR Age 62 or Older With Less Than 20 Years of Servic | 1 percent of your high-3 average salary for each year of service |
| Age 62 or Older at Separation With 20 or More Years of Service 1.1 percent of your high-3 average salary for each year of service | 1.1 percent of your high-3 average salary for each year of service |
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Your benefit was computed differently, if you retired under one of the provisions below
Member of Congress or Congressional Employee (or any combination of the two) must have at least 5 years of service as a Member of Congress and/or Congressional Employee:
1.7% of your high-3 average salary multiplied by your years of service as a Member of Congress or Congressional Employee which do not exceed 20, PLUS
1% of your high-3 average salary multiplied by your years of other service