Key Takeaways
- FERS retirees can qualify for both a federal pension and Social Security, with distinct eligibility, timing, and tax rules.
- The Windfall Elimination Provision no longer reduces Social Security for FERS retirees as of 2025.
If you’re a federal employee or recent retiree, understanding how your FERS pension and Social Security benefits work together is crucial. Navigating the transition across these programs helps ensure you’re informed about your retirement income—and recent rule changes may affect your plans. Here’s what you need to know in 2026.
What Are Social Security Benefits After FERS?
Overview of FERS and Social Security
The Federal Employees Retirement System (FERS) is a three-part retirement plan for most civilian federal employees. It includes a defined benefit pension, the government’s Thrift Savings Plan (TSP), and Social Security coverage. As a FERS-covered worker, you pay Social Security taxes throughout your federal career, just like most private sector employees.
Social Security provides monthly payments based on your lifetime earnings from jobs covered by Social Security, including your federal service under FERS. This means after you retire under FERS, you may also be eligible to receive Social Security benefits in addition to your pension.
How FERS and Social Security Interact
Both FERS and Social Security are designed to coordinate—your federal employment counts toward both retirement systems. Your FERS pension is based on years of service and high-three average salary, while Social Security depends on your covered earnings record and age when you claim. It’s common for FERS retirees to receive both forms of retirement income, often alongside income from TSP or other savings.
Who Is Eligible for Social Security with FERS?
Minimum Work Requirements
Eligibility for Social Security isn’t automatic with FERS participation—you need at least 40 credits (generally 10 years) of Social Security-covered work to qualify for retirement benefits. All FERS federal service counts toward this requirement because federal employees pay Social Security payroll taxes (FICA) on their earnings.
If you’ve worked fewer than 10 years under FERS by retirement, your total Social Security credits may be less than 40 if you have no other Social Security-covered work. However, most career federal employees will easily meet the threshold.
Age and Timing Considerations
Social Security’s “full retirement age” depends on your year of birth, typically ranging from 66 to 67. You can claim Social Security as early as age 62, but monthly benefits will be reduced if you start them before reaching your full retirement age. Conversely, delaying benefits up to age 70 increases the monthly amount—this is independent from the timing of your FERS pension.
How Do Social Security Rules Apply to FERS Retirees?
Filing Age Options
For FERS retirees, you have flexibility about when to start Social Security. Taking benefits early (at or after age 62) results in lower payments for life, while waiting yields larger monthly benefits. Your FERS pension begins based on federal retirement eligibility, but you choose your Social Security claiming date. This allows you to tailor your retirement income timeline to your preferences and needs.
Earnings Test Explained
If you claim Social Security before your full retirement age and continue working (either in federal reemployment or in another job), the Social Security Earnings Test applies. For every dollar you earn over a set threshold, part of your Social Security benefits may be withheld until you reach full retirement age. This rule pertains only to earned income; your FERS pension and most other retirement payouts do not count toward the excess earnings calculation.
Impact of FERS Supplement
The FERS annuity supplement (sometimes called the Special Retirement Supplement) helps certain FERS employees bridge the income gap if they retire before age 62. It’s designed to approximate the Social Security benefit earned from federal service, but it stops at 62 regardless of whether you claim Social Security. Importantly, the supplement is separate from Social Security and isn’t subject to the Windfall Elimination Provision as of 2026.
What Changed Since the Windfall Elimination Provision Repeal?
Past Rules Before 2025
Before 2025, the Windfall Elimination Provision (WEP) could reduce Social Security benefits for some retirees who also had a pension from a job not covered by Social Security. However, FERS-covered service was always subject to Social Security payroll taxes, so most FERS retirees were not impacted by WEP. Some employees with a mix of federal and non-covered employment faced reductions under previous rules.
Current Impact on Federal Retirees
As of 2025, the Windfall Elimination Provision has been repealed. No current or future FERS retirees will see their Social Security benefits reduced due to the WEP. This means if your entire federal career was under FERS, you receive your full Social Security benefit as calculated by the standard rules, unaffected by your federal pension. If you have service under an older retirement system (like CSRS) that was not covered by Social Security, different rules may still apply for that period.
How Are Social Security and FERS Benefits Different?
Benefit Calculation Methods
Your FERS pension is calculated using a formula based on your years of federal service and your highest three years of salary (“high-three”). Social Security, in contrast, uses your highest 35 years of covered earnings from all jobs (not just federal) to determine your monthly benefit, factoring in adjustments for early or delayed retirement.
Payout Timing Differences
Typically, your FERS pension payments begin the month following your retirement, with regular payments for life. Social Security benefits can start as early as age 62, though the payment amount permanently reflects your claiming age. There’s no requirement to begin Social Security at the same time as your FERS pension, and the two systems process and pay benefits independently.
What Key Considerations Should FERS Retirees Know?
Coordination with Medicare
While your FERS pension and Social Security provide income, eligibility for Medicare begins at age 65 for most people. You may be automatically enrolled in Medicare Part A when you claim Social Security, but you can also enroll in Medicare separately. It’s important to understand how federal retiree health benefits (FEHB) coordinate with Medicare and what choices you have as you approach 65.
Taxes on Retirement Income
Both your FERS pension and Social Security payments may be subject to federal income tax, depending on your total income. Social Security benefits are taxed only if your combined income (which includes half your Social Security plus other income and tax-exempt interest) exceeds certain thresholds set by the IRS. Be sure to consider the impact of taxes on your overall retirement income plan.
Options for Delaying Benefits
You aren’t required to claim Social Security immediately upon federal retirement. Delaying benefits past your full retirement age boosts your Social Security monthly amount until age 70. Some retirees choose to rely on their FERS pension and other income sources before tapping Social Security, depending on their personal and financial situation.
