Social Security Fairness Act Calculator 2026 (WEP/GPO Repeal)
Estimate your monthly Social Security boost and retroactive lump-sum after the WEP/GPO repeal. The Social Security Fairness Act of 2024 (P.L. 118-273, signed Jan 5, 2025) eliminates the Windfall Elimination Provision and Government Pension Offset retroactive to January 2024 — affecting roughly 3.2 million public-sector retirees.
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Source: Social Security Administration — Social Security Fairness Act (P.L. 118-273, signed Jan 5, 2025; ssa.gov). Last updated: May 3, 2026.
What Is the Social Security Fairness Act of 2024?
The Social Security Fairness Act of 2024 (P.L. 118-273) is the federal law that fully repeals two long-standing reductions to Social Security benefits — the Windfall Elimination Provision (WEP) and the Government Pension Offset (GPO). It was signed on January 5, 2025, and is retroactive to January 2024 payments. Roughly 3.2 million public-sector retirees — about 2.1 million WEP-affected and 745,000 GPO-affected — will see higher monthly checks plus a one-time retroactive lump-sum covering the months between January 2024 and the SSA payment date. Source: Social Security Administration.
This calculator estimates the dollar impact for your situation: full pre-WEP/GPO PIA, non-covered pension, "substantial earnings" years, and retroactive months owed. Inputs stay in your browser.
How WEP Cut Your Own Social Security Benefit
The Windfall Elimination Provision applied to workers who earned a pension from a job where Social Security taxes were NOT withheld (state teachers in 15 states, federal CSRS retirees, many police and firefighters, and some foreign pension recipients) AND who also had enough Social Security-covered work to qualify for their own retirement or disability benefit. Instead of the normal first PIA bend-point factor of 90%, WEP could lower it to as little as 40% — slashing the benefit by up to about $613/month in 2024 (the WEP guarantee was the lesser of that monthly cap or 50% of the non-covered pension). Workers with 30+ years of "substantial earnings" were exempt; those with 21-29 years got partial relief.
After repeal, the standard 90% factor is restored. If you had a typical $613 WEP reduction with 20 years of substantial earnings, you'd now see roughly that full amount added back to your monthly check — plus retroactive payments back to January 2024.
How GPO Cut Spousal and Survivor Benefits
The Government Pension Offset reduced the Social Security spousal or widow(er) benefit by two-thirds of the non-covered government pension. So a retired teacher with a $3,000/month TRS pension would see their spousal Social Security cut by $2,000/month — often eliminating it entirely. GPO disproportionately hurt widowed teachers, public-sector spouses, and divorced government retirees. Source: SSA GPO page (ssa.gov).
The Fairness Act eliminates GPO entirely, restoring the full spousal or survivor benefit. For many widow(er)s of public employees, this means hundreds — sometimes thousands — of dollars per month of restored benefits, plus the lump-sum back to January 2024.
What Happens Next: Lump-Sum Timing and Tax Impact
SSA began processing retroactive lump-sum payments and adjusted monthly benefits in February 2025 and is working through the backlog of about 3.2 million affected beneficiaries. Most cases were processed automatically — no application needed. If you were eligible for Social Security but never claimed because GPO would have wiped it out, you may need to file a new claim now to receive benefits going forward. The retroactive lump-sum is treated as taxable Social Security income in the year you receive it, but you can use the IRS "lump-sum election" method (Publication 915) to recompute the taxable portion as if it had been paid in the original years — often lowering the bill. Last updated: May 3, 2026.