How Unused Sick Leave Increases Your FERS and CSRS Annuity
Unused sick leave is one of the few federal benefits that quietly rewards employees who rarely used it. At retirement, your accumulated sick-leave hours are converted into extra creditable service that increases your annuity — for free.
- Unused sick leave is converted to additional service for the annuity computation.
- The conversion uses 2,087 hours = one year of service.
- It increases your pension but does NOT count toward retirement eligibility.
- Since 2014, FERS retirees receive full credit for unused sick leave.
How the conversion works
At retirement, OPM converts your unused sick-leave balance into months and days of additional creditable service using the standard chart based on 2,087 hours per work year. That added service is then plugged into your annuity formula. For example, roughly 2,087 hours of unused sick leave equals about one full year of service credit — which, at the FERS 1% multiplier, adds about 1% of your High-3 to your annual pension permanently.
| Unused sick leave | Approx. added service |
|---|---|
| 174 hours | ≈ 1 month |
| 522 hours | ≈ 3 months |
| 1,044 hours | ≈ 6 months |
| 2,087 hours | ≈ 1 year |
The crucial limitation
In other words, if you need 30 years of service to retire at your MRA, sick leave will not bridge a shortfall to reach 30. But once you are eligible, every hour of unused sick leave makes your pension a little larger.
The 2014 FERS change
There was a transition period when FERS employees received only partial credit for unused sick leave. That phase-in ended, and since 2014 FERS retirees receive 100% credit, putting them on equal footing with CSRS employees, who always received full credit.
Planning implications
- Avoid "burning" large amounts of sick leave just before retirement — unused hours convert to pension value.
- Time your retirement date to capture the maximum balance, since sick leave keeps accruing until you separate.
- Remember leftover annual leave is paid as a lump sum, but sick leave is converted to service credit instead.
See how added service changes your pension with the FERS or CSRS calculator.
Can sick leave help me reach 20 or 30 years for eligibility?
No. Sick leave only increases the service used to compute your annuity amount, not the service used to qualify for retirement.
Is unused annual leave treated the same way?
No. Unused annual leave is paid out as a lump sum at retirement. Only sick leave is converted into added service credit.
Do FERS and CSRS employees get the same sick-leave credit?
Yes, now. Since 2014, FERS retirees receive full credit, matching the treatment CSRS employees have always received.
Authoritative reference: OPM — creditable service. This site is not affiliated with the U.S. government.