Social Security WEP Calculator

Calculate WEP reduction to SS benefits for workers with non-covered pensions.
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Original Monthly Benefit

$1,800.00

WEP Reduction

$587.00

per month

Adjusted Monthly Benefit

$1,213.00

WEP Impact

Monthly WEP Reduction$587.00
Annual WEP Reduction$7,044.00
Max WEP Reduction (2026)$587.00
Years of Substantial Earnings Needed to Eliminate WEP15 more years

WEP Phase-Out by Years of Earnings

15 years — reduction $587.00/mo$1,213.00/mo
20 years — reduction $587.00/mo$1,213.00/mo
21 years — reduction $528.30/mo$1,271.70/mo
25 years — reduction $293.50/mo$1,506.50/mo
30 years — reduction $0.00/mo$1,800.00/mo

Use the Social Security WEP Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

How It Works

The Social Security WEP Calculator determines how the Windfall Elimination Provision reduces Social Security benefits for retirees who also receive pensions from jobs where they didn't pay Social Security taxes. For 2026, WEP can reduce monthly Social Security benefits by up to $587, making this calculation crucial for teachers, government employees, and others with non-covered pensions.

WEP works by replacing the standard 90% factor in Social Security's benefit formula with a lower percentage (as low as 40%) for the first $1,174 of Average Indexed Monthly Earnings in 2026. The reduction depends on years of substantial Social Security earnings, with the penalty decreasing as you accumulate more years of covered employment (20+ years reduces the impact, 30+ years eliminates it entirely).

Many people underestimate WEP's impact because they don't realize it applies to any non-covered pension, not just government pensions. The reduction cannot exceed half of your non-covered pension amount, and WEP doesn't affect spousal or survivor benefits. Remember that years with earnings below the substantial earnings threshold ($31,275 in 2026) don't count toward reducing the WEP penalty.

Teacher with $2,400 Social Security benefit and $1,800 teacher's pension

  1. 1 Sarah worked 15 years in Social Security-covered jobs and 20 years teaching (non-covered). Her calculated Social Security benefit before WEP would be $2,400 per month.
  2. 2 With 15 years of substantial earnings, her WEP reduction factor is 75% instead of 90%. The formula reduces the first $1,174 of her AIME by 15 percentage points (90% - 75% = 15%).
  3. 3 The WEP reduction calculates to $176 per month ($1,174 × 15% = $176). However, WEP cannot exceed half of her non-covered pension: $1,800 ÷ 2 = $900.
  4. 4 Since $176 is less than $900, the full WEP reduction applies. Sarah's final Social Security benefit will be $2,224 per month ($2,400 - $176), representing a 7.3% reduction due to WEP.

Source: IRS · Last updated: April 2026

Frequently Asked Questions

What is the Windfall Elimination Provision?
The WEP reduces Social Security benefits for workers who also receive a pension from employment not covered by Social Security (like some government or foreign jobs). It modifies the formula used to calculate your benefit, potentially reducing it by up to $629.50 per month in 2026.
How much does WEP reduce my Social Security?
The WEP reduction depends on your years of "substantial earnings" under Social Security. With 20 or fewer years of substantial earnings, the maximum reduction applies. The reduction decreases for each year above 20, and WEP is eliminated completely at 30 years of substantial earnings.
Does WEP affect my spouse benefits?
WEP directly reduces only your own Social Security benefit. However, your spouse benefit is based on your reduced (WEP-adjusted) amount, so it is indirectly affected. Survivor benefits are not reduced by WEP; they use the full benefit calculation.

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