Federal Employee Annual Leave: Accrual, Use, and Rules
Federal employee annual leave is one of the most closely regulated components of the civilian federal workforce compensation package, governed by 5 U.S.C. §§ 6301–6311 and administered through the U.S. Office of Personnel Management (OPM). This page covers how annual leave accrues by service length, how it may be used and carried over, the rules that distinguish it from other leave types, and the decision points employees and agencies face in managing leave balances. Understanding these rules affects pay, retirement calculations, and separation benefits.
Definition and scope
Annual leave for federal civilian employees is paid, discretionary leave authorized under Title 5 of the U.S. Code. Unlike sick leave — which is restricted to illness, medical appointments, or family care needs — annual leave carries no designated purpose restriction. Employees may use it for vacation, personal business, or any other reason at supervisory discretion.
The statutory framework applies to most full-time and part-time employees in the executive branch serving in competitive or excepted service positions. Employees covered under separate leave systems — such as members of the Senior Executive Service under distinct agency agreements, or certain excepted service categories — may operate under modified rules. A full overview of how position categories intersect with leave entitlements is available at federal employee types and categories.
Annual leave also carries direct financial significance at separation. Under 5 U.S.C. § 5551, employees separated from federal service receive a lump-sum payment for unused annual leave, calculated at the employee's rate of pay at the time of separation.
How it works
Annual leave accrues biweekly based on the employee's total federal civilian service length. OPM establishes three accrual tiers (OPM Leave Administration):
- 0–3 years of service: 4 hours per biweekly pay period (13 days per year)
- 3–15 years of service: 6 hours per biweekly pay period (19.5 days per year, plus 10 hours in the final pay period of the leave year)
- 15+ years of service: 8 hours per biweekly pay period (26 days per year)
Part-time employees accrue leave on a prorated basis proportional to their scheduled tour of duty. Employees with prior qualifying military service may receive service credit toward the above tiers under 5 U.S.C. § 6303(e).
Carryover limits are a critical structural feature. At the end of each leave year, most full-time employees may carry forward no more than 240 hours (30 days) of unused annual leave. Any balance above 240 hours is forfeited — a mechanism OPM refers to as "use or lose" leave. Employees in positions designated as overseas or in Senior Executive Service roles may carry higher ceilings: 360 hours and 720 hours respectively (OPM Leave Administration).
Restored leave provisions allow forfeited leave to be credited back under specific conditions — primarily when the leave was scheduled in writing before the final pay period of the leave year and the forfeiture was caused by an exigency of the public business, sickness, or an administrative error. Restored leave must be used within two leave years of the date it is restored.
Leave approval is not automatic. Supervisors retain scheduling authority and may deny or reschedule annual leave requests based on agency workload, though denial must not be arbitrary or retaliatory under merit system protections. For the broader framework governing employee rights in these interactions, see merit system principles for federal employees.
Common scenarios
Separation and lump-sum payment: When a federal employee retires or resigns, unused annual leave below the carryover ceiling converts to a cash payment. This payment is calculated by multiplying the number of accrued hours by the hourly rate of pay. For employees in the Federal Employees Retirement System (FERS), this lump-sum is taxable income in the year received but does not add to creditable service for pension purposes. A broader discussion of how retirement calculations work appears at federal employee pension calculation.
Advanced annual leave: Agencies may advance annual leave to employees before it has accrued, up to the amount the employee would accrue during the remainder of the leave year. If the employee separates before earning back the advanced leave, the agency may recover the debt by reducing the lump-sum payout or through other collection.
Substitution for unpaid FMLA leave: Under the Family and Medical Leave Act as applied to federal employees (5 C.F.R. Part 630, Subpart L), agencies may require employees to substitute accrued annual leave for the unpaid portion of FMLA-qualifying absences. Employees retain the option to voluntarily substitute leave but cannot be forced to exhaust all annual leave before FMLA protections apply. Details on how FMLA interacts with federal leave entitlements are covered at federal employee family and medical leave.
Leave during probationary periods: Employees in their probationary period accrue annual leave at the same rate as permanent employees in the same service bracket. The leave may be used with supervisory approval, but an employee separated during probation for performance or conduct reasons is still entitled to lump-sum payment for any accrued balance.
Decision boundaries
Several distinctions determine which rules apply in a specific situation.
Annual leave vs. sick leave: Annual leave is discretionary; sick leave is purpose-restricted. An employee cannot substitute sick leave for annual leave for non-medical purposes. The reverse — using annual leave when sick — is permitted but reduces the annual balance rather than the sick leave balance. Sick leave accrues at 4 hours per biweekly pay period regardless of service length and has no carryover ceiling, which creates a structurally different accumulation dynamic. For detail on sick leave rules, see federal employee sick leave.
Use-or-lose scheduling deadline: The critical decision point for use-or-lose leave is the last pay period of the leave year. Leave scheduled in writing before that final pay period is protected from permanent forfeiture even if the employee cannot take it due to agency-declared exigency. Leave not scheduled by that deadline is forfeited permanently, with no restoration eligibility.
Part-time vs. full-time accrual: A part-time employee scheduled for 40 hours per biweekly pay period accrues leave at the full-time rate. An employee scheduled for 20 hours accrues at half the applicable tier rate. This proportional calculation is specified under 5 U.S.C. § 6303(b).
Intermittent employees: Employees appointed on an intermittent basis — with no established regular tour of duty — do not accrue annual leave. This is a firm statutory boundary, not an agency discretionary policy.
For a broad orientation to the federal employment framework, including how leave programs fit within the total compensation structure, the federal employee authority home page provides a navigational starting point across benefit and employment topics. The relationship between leave entitlements and the broader federal employee benefits overview provides additional context for evaluating annual leave alongside health, retirement, and insurance programs.