WEP and GPO Back Pay Calculator
The Windfall Elimination Provision and the Government Pension Offset were repealed on 5 January 2025, backdated to January 2024. Work out what the SSA owed you for the months in between, and check it against what you actually received.
WEP and GPO were repealed on 5 January 2025.
Neither rule applies to benefits payable for January 2024 or later. The page below explains how they worked and how to check the back pay you were owed. What changed
Your Earnings History
This is your full Social Security benefit at full retirement age (find on ssa.gov)
Non-Covered Pension
Pension from government, railroad, foreign, or other non-Social Security covered work
This sets the maximum reduction, which depended on that year's first bend point. The list stops at 2023 because that is the last year WEP could apply to anyone.
SSA began adjusting monthly payments on 25 February 2025, so February 2025 is the usual answer. If you are not sure, leave it there.
GPO (Spousal/Survivor Benefits)
The reduction you were under, until January 2024
What you were owed back
WEP and GPO stopped applying from January 2024. Everything between that month and the month SSA corrected your payment was owed to you as a one-time deposit.
And from here on
This is the part people miss. The lump sum was one-off, but the monthly increase is permanent and it rises with the annual cost of living adjustment, so it is worth more over a full retirement than the deposit was.
If you never applied, SSA will not find you
The automatic recalculation only reached people SSA already had on its books as receiving a reduced benefit. If you never applied for a spousal or survivor benefit in the first place, because GPO would have wiped it out anyway and there was no point, then you are not in that group and nothing arrived.
SSA is explicit about this: if you were affected because you did not previously apply, you have to contact them and file an application. Worth checking if you are a teacher, firefighter, police officer or federal CSRS retiree whose spouse paid into Social Security and who was told years ago not to bother applying.
Protecting Your Retirement from WEP
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With reduced Social Security benefits, protecting your purchasing power becomes critical. Gold historically maintains value during inflationary periods.
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Government retirees affected by WEP often diversify retirement income with Gold IRAs. Our specialists can help you understand your options.
Understanding the Windfall Elimination Provision
Who WEP Applied To
WEP applied if you received a pension from work where you did not pay Social Security taxes: federal CSRS, some state and local governments, foreign employers. It stopped applying from January 2024.
30 Years Meant No WEP
With 30 or more years of substantial earnings in Social Security covered work, WEP never applied to you, so there is no back pay to look for.
The Maximum Reduction
The maximum was half of that year's first bend point, so $558 a month for 2023 eligibility, and it could never exceed half of your non-covered pension. 2023 is the last year it could apply.
GPO Went With It
The Government Pension Offset cut spousal and survivor benefits by two thirds of your government pension. It was repealed in the same act, so those benefits were restored too.
How the WEP Calculation Works
The WEP Formula
Social Security normally replaces 90% of your first $1,174 (2024) of average monthly earnings. WEP reduced this first "bend point" from 90% down to as low as 40%, depending on your years of substantial earnings.
Standard Formula: 90% of first $1,174 = $1,057
WEP Formula: 40% of first $1,174 = $470
Maximum Reduction: $587 (2024)
Years of Substantial Earnings Scale
| Years | WEP Percentage | First Bend Point Factor |
|---|---|---|
| 20 or fewer | 100% (Full WEP) | 40% |
| 21 | 95% | 45% |
| 22 | 90% | 50% |
| ... | ... | ... |
| 29 | 55% | 85% |
| 30+ | 0% (No WEP) | 90% (Normal) |
The 50% Pension Guarantee
Your WEP reduction can never be more than 50% of your non-covered pension. If you receive a $800/month government pension, your WEP reduction is capped at $400 - even if the formula would otherwise produce a larger reduction.
Government Pension Offset (GPO)
GPO is separate from WEP. While WEP reduced your own Social Security benefit, GPO reduced spousal or survivor benefits you might receive based on a spouse's Social Security record.
GPO Formula:
Spousal Benefit - (Government Pension x 2/3) = Adjusted Benefit
Example: GPO Elimination
- Government pension: $2,400/month
- Spousal benefit: $1,200/month
- GPO reduction: $2,400 x 2/3 = $1,600
- Adjusted benefit: $0 (completely eliminated)
Example: Partial GPO
- Government pension: $900/month
- Spousal benefit: $1,200/month
- GPO reduction: $900 x 2/3 = $600
- Adjusted benefit: $600/month
Who Is Affected by WEP?
Commonly Affected
- Federal employees hired before 1984 (CSRS)
- Some state and local government employees
- Teachers in certain states (15 states don't participate in SS)
- Police officers and firefighters in some jurisdictions
- People with foreign pensions
- Railroad employees (pre-1984)
Not Affected by WEP
- Federal employees under FERS (hired after 1983)
- State/local employees who paid into Social Security
- Anyone with 30+ years of substantial SS earnings
- Most private sector workers
- Self-employed who paid SE tax
WEP Frequently Asked Questions
What was the Windfall Elimination Provision (WEP)?▼
WEP is a formula that reduces Social Security benefits for people who receive pensions from work not covered by Social Security but also worked in Social Security-covered employment. It prevents 'double-dipping' from both systems.
How much does WEP reduce my Social Security?▼
It no longer reduces it at all. WEP was repealed with effect for benefits payable from January 2024. While it applied, the maximum was half of the first bend point for your eligibility year, which came to $558 a month at 2023 eligibility, and it could never exceed half of your non-covered pension. With 30 or more years of substantial earnings it did not apply; with 20 or fewer you got the full reduction; between 21 and 29 years it was graduated in steps of 5 percentage points.
What is the difference between WEP and GPO?▼
WEP reduced your own Social Security retirement benefit. GPO (Government Pension Offset) reduced spousal or survivor Social Security benefits by 2/3 of your government pension. They are separate provisions.
What counts as substantial earnings for WEP?▼
For 2024, substantial earnings means earning at least $31,275 in Social Security-covered employment. The threshold adjusts annually. Check your Social Security statement for your earnings history.
Can I avoid WEP by working more years?▼
That used to be the way out, and it is now beside the point: WEP was repealed with effect from January 2024, so there is no reduction left to work your way out of. While it applied, each year above 20 cut the WEP percentage by 5 points and 30 years removed it entirely.
Was WEP repealed?▼
Yes, it already was. The Social Security Fairness Act (H.R. 82) was signed into law on 5 January 2025 and repealed both WEP and GPO. December 2023 was the last month either applied, so the correction was backdated to January 2024 and paid as a one-time deposit. SSA reported on 7 July 2025 that it had completed over 3.1 million such payments, totalling $17 billion.
Important Disclaimer
This calculator provides estimates based on current WEP and GPO rules. Actual Social Security calculations are complex and depend on your complete earnings history. For an exact calculation, contact the Social Security Administration at ssa.gov or 1-800-772-1213. This tool is for educational purposes only and should not be relied upon for financial planning decisions.
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