Social Security Advisor Match

WEP & GPO Repeal Calculator

The Social Security Fairness Act (signed December 2024, retroactive to January 2024) repealed both the Windfall Elimination Provision and the Government Pension Offset. Use this calculator to estimate your monthly benefit increase and the retroactive lump sum you were owed.

Who this is for: Teachers, state and local government workers, federal CSRS retirees, and surviving spouses whose Social Security benefits were reduced or eliminated by WEP or GPO. If you worked in a job where your employer did not withhold Social Security (FICA) taxes, this likely applies to you.

WEP: Your own benefit increase

WEP reduced the first factor in the Social Security benefit formula from 90% down to as low as 40%, depending on how many years you paid Social Security taxes on "substantial earnings." The more government-pension years and fewer SS-covered years you had, the larger the cut — up to a per-person cap.

Count only years you earned above the substantial earnings threshold (roughly $29,000–$32,000/yr in recent years). Your SSA.gov earnings statement lists each year's amount.
Your gross monthly benefit from the state/federal pension (CalSTRS, TRS, CSRS, etc.).
What you received per month before 2025. Lets the calculator show your estimated new benefit.

How accurate is this estimate?

The WEP calculation uses the 2026 first bend point ($1,226) and the SSA's published years-of-substantial-earnings table to estimate the maximum possible WEP reduction. Your actual reduction may be lower if:

GPO results are more straightforward — the 2/3 formula is applied mechanically — but your full spousal or survivor entitlement depends on your spouse's exact PIA and your claiming age.

If your actual monthly increase differs substantially from this estimate, contact SSA at 1-800-772-1213 or visit a local office with your benefit verification letter and earnings record.

Retroactive payment tax note: The 14-month retroactive lump sum was taxable income for 2025. For some retirees, this pushed them temporarily into a higher federal tax bracket or triggered a 2027 IRMAA surcharge on Medicare Part B and D premiums. See how Social Security income is taxed →

Your claiming strategy may have changed

If WEP had significantly cut your benefit, you may have claimed early at 62 or 63 because delaying felt less worthwhile on a smaller base. Post-repeal, delaying is more valuable: the 8%/year delayed credit (from FRA to 70) now applies to your full, unmodified benefit. If you haven't claimed yet, the break-even analysis looks different.

The same logic applies to spousal coordination. For a household where one partner was GPO-affected, the optimal joint claiming sequence may have shifted.

Re-run the claiming age optimizer with your full post-repeal benefit →

Get your new strategy modeled by a specialist

WEP and GPO repeal changed the math for millions of government retirees and their spouses. The right claiming age, Roth conversion window, and IRMAA plan all shift when your full Social Security benefit is restored. A fee-only specialist runs the complete picture for your specific numbers — not a generic calculator output.

Fee-only · No commissions · Free match · No obligation

Sources

  1. SSA: Social Security Fairness Act — WEP and GPO Update — retroactive effective date, monthly benefit increases starting April 2025
  2. SSA Publication EN-05-10045: 2026 Windfall Elimination Provision — WEP PIA factor table (40%–85% by years of substantial earnings), 2026 maximum reduction
  3. SSA OACT: Benefit Formula Bend Points — 2026 first bend point $1,226/mo; second bend point $7,391/mo
  4. SSA Blog: Retroactive Payments — February 2025 — average retroactive payment $6,710; 3.1 million payments totaling $17 billion by July 2025
  5. SSA Publication EN-05-10007: Government Pension Offset — GPO 2/3 formula and spousal/survivor benefit interaction

WEP bend point and PIA factors verified against 2026 SSA publications. Retroactive period (14 months) based on SSA timeline: SSFA effective January 2024, monthly increases in effect starting April 2025 (for March 2025 benefit). Individual results vary. Verified April 2026.

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Content is for informational purposes only and does not constitute financial, tax, legal, or investment advice.