Federal Employee Sick Leave Policies and Usage
Federal employees accrue paid sick leave under a statutory framework governed by Title 5 of the U.S. Code and administered by the U.S. Office of Personnel Management (OPM). Understanding how sick leave accrues, when it can be used, and how it interacts with other leave categories is essential for federal workers managing illness, family caregiving, or medical appointments. This page covers the definition and accrual mechanics, permissible uses, representative scenarios, and the boundary conditions that determine when sick leave applies versus other leave types.
Definition and scope
Federal employee sick leave is a paid leave entitlement established under 5 U.S.C. § 6307 and detailed in OPM regulations at 5 C.F.R. Part 630, Subpart D. It is distinct from annual leave, which employees may use for any personal purpose, because sick leave is restricted to specific medical, caregiving, and adoption-related purposes defined in statute and regulation.
All full-time federal civilian employees in the competitive and excepted services earn 4 hours of sick leave per biweekly pay period, totaling 13 days (104 hours) per year (OPM, Sick Leave (General Information)). Part-time employees earn sick leave on a pro-rated basis proportional to their scheduled tour of duty. Unlike annual leave, there is no ceiling on sick leave accumulation — unused balances carry over indefinitely from year to year, meaning a long-serving employee can accumulate hundreds of hours.
Sick leave balances also carry retirement value. Under the Civil Service Retirement System (CSRS), unused sick leave is converted directly into additional service credit at retirement. Under the Federal Employees Retirement System (FERS), 100 percent of unused sick leave is converted to service credit for annuity computation purposes, a benefit extended to FERS employees by the Airline Transportation Safety and System Improvement Act of 2008 and made permanent in 2009 (OPM, Sick Leave Used in the Computation of an Annuity).
How it works
Sick leave is requested through an employee's employing agency and documented in the agency's time and attendance system. Supervisors may require medical documentation — typically after absences exceeding 3 consecutive workdays — but agencies retain discretion to require documentation for shorter absences if abuse patterns are documented (5 C.F.R. § 630.403).
Permissible uses of sick leave fall into four statutory categories under 5 U.S.C. § 6307(a):
- Personal medical need — incapacitation by physical or mental illness, injury, pregnancy, or childbirth.
- Medical, dental, or optical appointments — examination or treatment that cannot reasonably be scheduled outside work hours.
- Family care or bereavement — care for a family member with a serious health condition, or attendance at the funeral of a family member (subject to the 13-day and 5-day sub-limits described below).
- Adoption — purposes related to the legal adoption of a child.
Federal sick leave policy enforces two important sub-limits on family-related use. An employee may use up to 13 days (104 hours) of sick leave per leave year to provide care for a family member with a serious health condition or illness. An additional 5 days (40 hours) may be used for bereavement — to arrange or attend funeral services for a family member (OPM, Sick Leave to Care for a Family Member). These caps apply within the leave year regardless of total sick leave balance.
Common scenarios
Scenario 1 — Personal illness. An employee with influenza who is absent for 5 consecutive workdays submits a request for sick leave. The agency may require a medical certificate upon return because the absence exceeded 3 consecutive workdays. The full 5 days are charged to the sick leave balance with no sub-limit restriction.
Scenario 2 — Caring for a child. An employee's child undergoes surgery and requires 15 days of parental care during recovery. The employee may use up to 13 days of sick leave for this purpose within the leave year. The remaining 2 days may be charged to annual leave, leave without pay, or — if qualifying conditions are met — covered under the Federal Employee Family and Medical Leave Act.
Scenario 3 — Chronic condition management. An employee with a documented chronic condition requires biweekly medical appointments. These appointments qualify as sick leave use under the medical examination and treatment category, and because each individual absence is brief, the 3-day documentation threshold is unlikely to trigger a certificate requirement for each visit.
Scenario 4 — Retirement transition. An employee retiring under FERS with 2,087 hours of unused sick leave receives credit for exactly 1 additional year of service in the annuity computation, because OPM converts unused sick leave at the rate of 2,087 hours per year of service (OPM, FERS Information — Sick Leave Service Credit).
Decision boundaries
Choosing between sick leave and other leave types involves several threshold questions that determine which authority applies.
Sick leave vs. annual leave. Sick leave is restricted to the four statutory categories listed above. Annual leave carries no use restrictions and may be substituted at the employee's request when sick leave is unavailable. Employees cannot be forced to substitute annual leave for sick leave when a qualifying condition exists.
Sick leave vs. FMLA leave. The Family and Medical Leave Act as applied to federal employees (5 U.S.C. § 6382) provides up to 12 administrative workweeks of unpaid, job-protected leave per leave year for qualifying serious health conditions or family circumstances. Sick leave and FMLA leave can run concurrently when the condition qualifies both. When sick leave balances are exhausted but FMLA eligibility remains, leave without pay under FMLA protects the employee's position and benefits.
Sick leave vs. workers' compensation. An employee injured on duty may be eligible for benefits under the Federal Employees' Compensation Act (FECA), administered by the Department of Labor's Office of Workers' Compensation Programs. During the waiting period or while a FECA claim is adjudicated, sick leave may be used and later restored if the claim is approved — a restoration that preserves balances rather than penalizing injured workers. Detailed information on injury-related leave options appears on the federal employee workers' compensation reference page.
Sick leave vs. leave without pay (LWOP). When sick leave balances reach zero, an employee may request LWOP. Unlike sick leave, LWOP affects retirement service computation under FERS if it exceeds 6 months in a calendar year (OPM, Effect of Extended LWOP). Supervisors have discretion to deny LWOP requests except where granting it is required by statute (e.g., under FMLA or USERRA).
Broader information on the full spectrum of leave and federal employee benefits — including the health and insurance programs that frequently intersect with sick leave use — is available through the site's main reference index.