Unused sick leave is not paid out like annual leave. At retirement, it can convert into extra service credit and increase your lifetime FERS pension.
At retirement, unused sick leave is converted into additional service credit for the FERS annuity computation. The conversion uses 2,087 hours as one work year. Smaller balances convert to months and days using OPM conversion tables. The resulting credit is added after you are otherwise eligible to retire.
This means sick leave can raise the pension amount, but it is usually not a tool to become eligible. If you need 30 actual years for MRA+30, unused sick leave generally does not fill that eligibility gap. It improves the computation once you qualify.
OPM applies sick leave after combining your actual creditable service. If the conversion adds months, those months can move the final annuity computation upward. Days that do not add up to a full month may be dropped, which is why official estimates can differ slightly from a simple hours divided by 2,087 calculation.
1,000 hours / 2,087 = 0.479 years.
At $150,000 high-3 and 1.0% multiplier: 150,000 x 0.479 x 0.010 = $719/year extra pension.
| Sick leave | Approx years | Value at $150k high-3, 1.0% |
|---|---|---|
| 500 hours | 0.24 | $359/year |
| 1,000 hours | 0.48 | $719/year |
| 1,500 hours | 0.72 | $1,078/year |
| 2,087 hours | 1.00 | $1,500/year |
The annual increase may look small, but it repeats for life and can receive COLA treatment along with the pension. For employees with high salaries and large balances, sick leave credit can be a meaningful add-on.
The value rises with high-3 salary and the pension multiplier. A 2,087-hour balance is worth $1,200/year at a $120,000 high-3 with the 1.0% multiplier, but $1,980/year at a $180,000 high-3 with the 1.1% multiplier. Over a long retirement, that difference can equal a meaningful emergency reserve or Medicare premium offset.
Unused sick leave generally cannot be used to meet the minimum service requirement for retirement eligibility or the 20-year threshold for the 1.1% multiplier. It is applied to the annuity computation after eligibility is established. This matters for employees near MRA+30, age 60+20, or 62+20. Ask HR for confirmation before assuming sick leave pushes you over a threshold.
Sick leave is valuable, but it should not override health needs. Use it when medically necessary. The planning opportunity is avoiding casual, unnecessary depletion late in a career. Unlike annual leave, sick leave has no standard lump-sum payout at retirement. Its value is in the pension formula.
Before retirement, check your LES for sick leave balance and request an agency retirement estimate that includes it. Compare estimates with and without large sick leave balances if you want to understand its marginal value.
Use your current service and high-3 to model retirement income.