When you leave federal service, any unused annual leave is paid out as a lump sum. For long-tenured employees, that annual leave payout can be significant, often $15,000 to $25,000 or more, depending on grade and balance. But the amount you see on paper is not the same as what you actually take home.
How the Annual Leave Payout Is Calculated
Unused annual leave is not simply multiplied by your hourly rate and paid out all at once. Instead, it is converted into a projected period of paid time, as if you remained on the payroll and used that leave day by day. If a general pay increase takes effect during that period, any leave hours after the effective date are paid at the higher rate.
For example, if your leave balance equals 30 days and a pay increase occurs on day 15, the first half is paid at your retirement rate and the second half at the new rate. This timing alone can influence the final value of your payout.
What Gets Withheld
Your annual leave payout is treated as regular wages for tax purposes. That means federal income tax, state income tax (where applicable), Social Security up to the wage base, and Medicare taxes are all withheld.
What does not come out are FERS retirement contributions, TSP contributions, FEHB premiums, and FEGLI premiums. The payout is issued as taxable wages and cannot be directed into tax-advantaged accounts.
The Withholding Surprise
One common surprise is how much tax is initially withheld. Payroll systems treat the lump sum as if it were a recurring payment spread across the year, which can push withholding into a higher bracket temporarily. This often results in over-withholding, which is later corrected when you file your tax return.
The Timing Factor
When you retire also affects how the payout is taxed. Early-year retirements may result in the leave payout being taxed in a lower-income year, while late-year retirements can stack it on top of nearly a full year of earnings. That timing difference can influence your effective tax rate and is often overlooked in retirement planning.
A Federal Retirement Consultant (FRC®) can help you evaluate how your annual leave payout fits into your broader retirement income and tax strategy. Schedule your complimentary benefits review today.


















