SSDI Payment Formula:
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The SSDI (Social Security Disability Insurance) payment calculation determines your Primary Insurance Amount (PIA) using a formula with three Average Indexed Monthly Earnings (AIME) bend points. This calculation forms the basis for your monthly disability benefit.
The calculator uses the PIA formula:
Where:
Explanation: The formula uses decreasing percentages for higher income brackets to provide proportionally higher benefits to lower-income workers.
Details: The AIME is calculated from your 35 highest-earning years, adjusted for inflation. The bend points divide your AIME into three segments that are weighted differently in the PIA calculation.
Tips: Enter your AIME amounts for each bend point in dollars per month. The calculator will compute your estimated PIA, which is the basis for your SSDI payment.
Q1: What are the current bend point amounts?
A: For 2023, the first bend point is $1,174, and the second is $7,078. These amounts are adjusted annually for inflation.
Q2: How is AIME calculated?
A: AIME is based on your 35 highest-earning years, indexed for wage inflation, then divided by 420 (35 years × 12 months).
Q3: Is this the exact amount I'll receive?
A: Your actual payment may differ based on other benefits, cost-of-living adjustments, or family maximums.
Q4: How often are bend points updated?
A: Bend points are adjusted annually based on national average wage index changes.
Q5: Can my PIA decrease?
A: No, once calculated, your PIA only increases with cost-of-living adjustments (COLAs).