Appendix B: Regular Federal Employees Retirement System (FERS) (Retirement Coverage Code K)
Unreduced retirement benefits are available at the following age and service combinations:
- At least age 62 with 5 or more years of service
- At least age 60 with 20 or more years of service
- At least the Minimum Retirement Age (MRA) with 10 or more years of service
- At least the MRA with 30 or more years of service
If you retire at the MRA with at least 10, but less than 30 years of service, you will be reduced by 5 percent a year for each year you are under 62, unless your years of service and your benefit starts when you reach age 60 or later.
Minimum Retirement Age Chart
Year of Birth |
Minimum Retirement Age |
before 1948 |
55 |
1948 |
55 & 2 months |
1949 |
55 & 4 months |
1950 |
55 & 6 months |
1951 |
55 & 8 months |
1952 |
55 & 10 months |
1953 - 1964 |
56 |
1965 |
56 & 2 months |
1966 |
56 & 4 months |
1967 |
56 & 6 months |
1968 |
56 & 8 months |
1969 |
56 & 10 months |
1970 & after |
57 |
See Frozen-CSRS -Service on IRIS Program IR117 for length of frozen service. (Frozen service is the total number of years and months of civilian and military service that is creditable in a CSRS component of a FERS employee. The employee must have completed 5 years of creditable civilian service before becoming subject to CSRS offset or before election date of FERS coverage.)
Retirement Formulas Used:
If the employee has not transferred from CSRS to FERS or has transferred and had no frozen service, use one of the following formulas:
If the employee is less than 62 years old or has less than 20 years of service:
- Compute [Retirement High-3 x 1% x years of service].
- Compute [Step 1 / 12].
For part-time employees (Work Schedules PP 01 tour of duty. This is done because the tour of duty proration is not available.
, , , and ), the monthly annuity is then prorated by the employee's - Compute [Step 2 x (PP 01 tour-of-duty hours / 80)].
If the employee is age 62 or older with at least 20 years of service:
- Compute (Retirement High-3 x 1.1% x years of service].
- Compute [Step 1 / 12].
For part-time employees (Work Schedules PP 01 tour of duty. This is done because the tour of duty proration is not available.
, , , AND ), the monthly annuity is then prorated by the employee's - Compute [Step 2 x (PP 01 tour-of-duty hours / 80)].
If the employee has transferred from CSRS to FERS and has frozen service:
- Follow CSRS retirement formulas shown in Appendix D: Civil Service Retirement System (CSRS) and CSRS-Offset Retirement (Retirement Coverage Codes 1, C, and R) using Frozen-CSRS -Service (shown on IRIS Program IR117) as the employee's years of service. Refer to Appendix D: Civil Service Retirement System (CSRS) and CSRS-Offset Retirement (Retirement Coverage Codes 1, C, and R) for more information on CSRS retirement formulas.
- Follow FERS retirement formulas shown above using the employee's years of service after the transfer as employee's years of service.
- Add Step 1 and Step 2 amounts.
For part-time employees (Work Schedules PP 01 tour of duty. This is done because the tour of duty proration is not available.
, , , and ), the monthly annuity is then prorated by the employee's - Compute [Step 3 x (PP 01 Tour-of-Duty Hours / 80)].