Federal Employee Retirement Eligibility Requirements

Federal civilian employees become eligible for retirement benefits under rules that vary by retirement system, years of service, and age — and the system an employee belongs to depends almost entirely on when they were hired. This page covers the eligibility criteria for the two primary federal retirement systems, the mechanics of how age and service combine to unlock benefits, and the decision boundaries that distinguish one retirement type from another. Understanding these thresholds is essential for workforce planning, because retiring before meeting the correct criteria can permanently reduce — or forfeit — annuity payments.

Definition and scope

Federal civilian retirement eligibility is governed by Title 5 of the U.S. Code and administered by the U.S. Office of Personnel Management (OPM). Two retirement systems cover the vast majority of the federal workforce: the Civil Service Retirement System (CSRS), which covers employees hired before January 1, 1984, and the Federal Employees Retirement System (FERS), which covers employees hired on or after January 1, 1987, and most employees hired between those dates who did not opt into CSRS.

FERS now covers the overwhelming majority of active federal employees, as CSRS is closed to new entrants. Both systems define retirement eligibility through the intersection of a minimum age and a minimum number of years of creditable civilian service. For a broader orientation to how these systems are structured, the Federal Employee Retirement Systems page provides the foundational framework.

Creditable service includes most periods of federal civilian employment in which retirement deductions were withheld from pay, as well as certain qualifying military service that has been "bought back" through a deposit to OPM (OPM, Military Service Credit).

How it works

FERS eligibility thresholds

FERS introduced the concept of a Minimum Retirement Age (MRA), which ranges from age 55 to 57 depending on year of birth (OPM, FERS MRA Table). Employees born in 1970 or later face a MRA of 57.

FERS retirement types and their qualifying conditions are:

1. Immediate Voluntary Retirement — requires MRA + 30 years of service, age 60 + 20 years, or age 62 + 5 years. Full annuity without age-reduction penalty applies at age 62 with 5 years, or at age 60 with 20 years.
2. MRA + 10 Retirement — available at MRA with at least 10 but fewer than 30 years of service. The annuity is reduced by 5 percent for each year the employee is under age 62, unless the employee delays the start of payments.
3. Early Out / VERA (Voluntary Early Retirement Authority) — requires age 50 + 20 years of service, or any age with 25 years of service, when OPM authorizes an agency to offer early retirement during restructuring (OPM, VERA).
4. Deferred Retirement — available to former employees who left federal service with at least 5 years of creditable service and did not receive a refund of contributions. Payments begin at age 62.

CSRS eligibility thresholds

CSRS uses a simpler structure without an MRA concept:

• Age 55 with 30 years of service
• Age 60 with 20 years of service
• Age 62 with 5 years of service

CSRS employees contribute 7 percent of basic pay toward retirement, compared to the 0.8 percent standard FERS contribution rate for employees hired before 2013 (OPM, CSRS Information).

Common scenarios

Scenario 1 — Standard FERS career employee: An employee born in 1968 has a MRA of 56. After 30 years of service, this employee qualifies for an immediate, unreduced annuity at MRA + 30, even though age 62 has not been reached.

Scenario 2 — Short-career federal employee: An employee who leaves federal service after 12 years at age 45 is not eligible for an immediate annuity. That employee qualifies for a deferred annuity beginning at age 62, provided retirement contributions were not refunded. This scenario intersects directly with the rules governing the Thrift Savings Plan for Federal Employees, where the TSP account remains accessible separately under different rules.

Scenario 3 — MRA + 10 with penalty: An employee reaches MRA at age 56 with exactly 15 years of service. The immediate annuity is reduced by 5 percent × 6 years (the gap between age 56 and 62), producing a 30 percent reduction. The employee may elect to postpone the annuity start date to reduce or eliminate that penalty.

Scenario 4 — VERA offer during agency restructuring: An agency undergoing a federal employee reduction in force receives OPM authorization to offer early retirement. An employee aged 52 with 22 years of service qualifies even though they have not reached MRA, because the VERA threshold of age 50 + 20 years is satisfied.

Decision boundaries

The critical distinctions that separate retirement types from one another are:

The most consequential boundary for FERS employees is the difference between MRA + 30 and MRA + 10: crossing from 29 to 30 years of creditable service at MRA eliminates the age-based penalty entirely. Employees who separate voluntarily with fewer than 5 years of creditable service receive a refund of their retirement contributions and forfeit all annuity rights.

CSRS participants face no MRA construct but must navigate the interaction between their higher contribution rate and the absence of Social Security coverage for most CSRS employees — a structural distinction covered in detail on the Federal Employee Pension Calculation page. Employees holding Federal Employee Benefits Overview questions about how retirement fits alongside health and life insurance benefits should note that eligibility for continued FEHB coverage in retirement requires at least 5 years of continuous enrollment immediately before retirement, a separate requirement from the service minimums described here.

The authoritative resource for eligibility determinations in individual cases is OPM's Retirement Services division, which maintains official eligibility tables and application materials at opm.gov/retirement-services. The federal retirement landscape as a whole, including both FERS and CSRS program summaries, is indexed at the Federal Employee Authority homepage.