Key Takeaways
- Federal retirement processes and eligibility differ by system (FERS vs. CSRS), requiring specific forms and steps.
- Recent changes, like the repeal of the Windfall Elimination Provision, affect retirement benefits and calculations.
Navigating your federal retirement may seem complex, but a clear, methodical approach can help you understand each step. This Q&A offers a structured guide to the retirement process, spotlighting how FERS and CSRS differ, the necessary forms, and major 2026 regulatory changes so you can better prepare for your transition from federal service.
What Is the Federal Retirement Process?
Overview of federal retirement systems
Federal retirement is governed by two major systems: the Civil Service Retirement System (CSRS) and the Federal Employees Retirement System (FERS). CSRS generally covers those hired before 1984, while FERS applies to employees who joined federal service after that year. Both systems provide lifetime pension benefits, but FERS integrates more directly with Social Security and the Thrift Savings Plan (TSP).
Who is eligible to retire?
Eligibility depends on your system, years of service, and age. Under CSRS, you typically need to be at least 55 with 30 years of service, 60 with 20 years, or 62 with 5 years. For FERS, eligibility usually means reaching your Minimum Retirement Age (MRA) — ranging from 55 to 57 depending on birth year — along with specific service years (such as MRA with 30 years, age 60 with 20 years, or age 62 with 5 years).
Retirement processing basics
The retirement process officially begins when you submit your retirement application through your agency’s human resources office. Your agency, in collaboration with the Office of Personnel Management (OPM), will then review your records, verify service history, and calculate your annuity.
How Do FERS and CSRS Compare?
History and background of each system
CSRS began in 1920 and was the primary federal retirement system through 1986. FERS was introduced in 1987 to modernize retirement benefits, coordinate with Social Security, and add portability. Most current federal employees fall under FERS, with a shrinking group remaining under CSRS.
Core components of FERS vs. CSRS
FERS combines three sources: a basic government-provided annuity, Social Security, and investments via the TSP. CSRS offers a larger annuity but lacks the government-matched TSP and doesn’t include Social Security for most. The FERS model is designed to support flexible career paths and offers a more balanced retirement income structure.
Eligibility differences
CSRS often allows for earlier retirement at full benefits with slightly fewer years and a younger minimum age compared to FERS. FERS requires you to meet its MRA-age rules, and service credit requirements can vary. These differences may impact when you can retire and what your income looks like.
What Steps Should You Expect?
Step 1: Confirm eligibility
Carefully review your age and service time to ensure you meet the requirements for your specific system. Agencies and OPM provide official resources to check your eligibility.
Step 2: Gather required documents
Prepare records of federal service, beneficiary designations, military service (if any), marriage certificates (for survivor benefits), and documentation for any periods of leave without pay.
Step 3: Complete and submit application
Download and fill out the necessary forms (SF 2801 for CSRS, SF 3107 for FERS, among others), then submit them through your agency’s HR office.
Step 4: Agency and OPM review
Your agency’s HR reviews the application for completeness, forwards it to OPM, and OPM conducts a secondary, more detailed review for final eligibility and benefit calculation.
Step 5: Benefit calculation and finalization
Once OPM completes their review, your gross annuity is calculated. OPM will issue interim payments if processing is delayed. After finalizing your file, regular monthly payments commence.
Which Forms Are Needed to Retire?
Standard forms for FERS and CSRS
Federal employees retiring under FERS typically use Standard Form (SF) 3107, while CSRS retirees use SF 2801. There are separate forms for disability retirement and for the TSP.
Where to find official forms
You can access retirement forms on the OPM website. Agencies usually maintain a library of standard forms at their HR or retirement services division or via official intranet resources.
Key supporting documents
Include proof of federal service, any military DD-214 forms (for military service), proof of prior service credit deposits, marriage certificates, and beneficiary designations. These help verify eligibility and ensure benefits are processed.
How Are Benefits Calculated?
Basic formula for each system
CSRS calculates your annuity based on years of service and your highest three years of salary, using a defined percentage for each year of service. FERS uses a similar “high-3” salary average, but the multiplier is generally lower because FERS includes Social Security and TSP accounts in your overall retirement package.
Redeposit and service credit questions
If you previously took a refund of your CSRS or FERS retirement contributions, you may be able to redeposit those funds to restore service credit, which can increase your annuity calculation. Unpaid deposits may result in reduced benefits.
Impact of unused sick leave
Both systems allow some or all unused sick leave to count as service credit, potentially increasing your monthly annuity. Full conversion of sick leave to service credit is standard under FERS and CSRS.
When Will Retirement Benefits Begin?
Timing under FERS and CSRS
Your annuity begins the first month following your official retirement date, provided OPM receives complete documentation. There may be some delay before the first payment arrives while OPM reviews your case.
Potential processing delays explained
Processing delays can occur if documentation is incomplete or your service history is complex. OPM may issue interim payments while your file is finalized to avoid major gaps in income.
What to expect in your first payments
Initial payments may be partial or estimated while OPM conducts its review. Once finalized, you’ll begin receiving your regular, full monthly benefit and any applicable back pay for the interim period.
Are Health and Insurance Benefits Affected?
FEHB and FEGLI in retirement
You can generally continue Federal Employees Health Benefits (FEHB) and Federal Employees’ Group Life Insurance (FEGLI) if enrolled for at least five years before retirement, with premiums typically deducted from your annuity.
Continuing federal dental and vision coverage
Dental and vision plans under the Federal Employees Dental and Vision Insurance Program (FEDVIP) can continue as well, as long as you were enrolled prior to retirement and pay required premiums.
Medicare integration for retirees
Medicare becomes available at age 65. Many retirees retain FEHB and coordinate with Medicare Part A and optionally Part B for added coverage, as outlined by OPM guidance.
What Happens If You Have Military Service?
Crediting military service toward retirement
Military service can often be credited toward your federal retirement, provided you pay a deposit based on your basic military pay.
Military buyback process overview
The military service “buyback” enables you to pay a deposit to have your active-duty military years count for retirement eligibility and annuity.
Impact on benefit calculations
Credited military service increases your total service time, which may improve your annuity calculation, depending on your system and whether you made required deposits.
How Has Federal Retirement Changed Since 2025?
Recent regulatory updates
Since 2025, federal retirement processes have incorporated electronic documentation, streamlined timelines, and additional guidance on remote and hybrid workforce transitions.
Repeal of the Windfall Elimination Provision
The Windfall Elimination Provision (WEP) was repealed in 2025. Federal employees under FERS are no longer subject to reductions in their Social Security benefits due to federal pension income.
Other notable rule changes
Other updates include clarified definitions for qualifying service, improved access to digital application status tracking, and updates to disability retirement adjudication.
What Are Common Questions About Federal Retirement?
Can you change your retirement date?
You may change your retirement date before separation, but the timing must be coordinated with your agency’s HR and updated forms must be submitted promptly.
How to track application status
Applicants can check the status of their retirement application through OPM’s online Retirement Services portal or by contacting their agency’s benefits office for updates.
Where to find official resources
Official rules, forms, and educational materials are available through OPM.gov, agency intranet sites, and relevant sections on TSP, FEHB, and Medicare websites. For comprehensive and accurate information, always use government and authorized sources exclusively.
