Social Security Benefits Calculator

This calculator estimates a Social Security retirement benefit using the same structure the SSA uses, simplified for a quick estimate. It first computes an approximate Average Indexed Monthly Earnings (AIME) by averaging your entered annual earnings -- capped at the 2026 Social Security taxable maximum of $184,500, since SSA never taxes or credits earnings above that statutory cap toward your benefit, no matter how high your actual income -- over the lesser of Years Worked or 35. Social Security only counts your highest 35 years of indexed earnings, so working beyond 35 years no longer raises this estimate, and working fewer than 35 effectively divides by 35 anyway, the same way the real SSA formula treats missing years as zeros. That AIME is run through the current 2026 Primary Insurance Amount (PIA) bend-point formula: 90% of the first $1,286 of AIME, 32% of the amount between $1,286 and $7,749, and 15% of anything above $7,749 -- percentages fixed in federal law, with the dollar bend points themselves adjusted annually and, in real SSA practice, locked in for the year you turn 62 rather than the year you claim -- so a young user (this calculator defaults to Birth Year 1980, turning 62 in 2042) will actually be assigned very different bend points than the 2026 figures used here. The resulting PIA is capped at $4,152, the published 2026 maximum monthly benefit at full retirement age, since this simplified flat-earnings model can otherwise imply a benefit above what any real, wage-indexed, annually-capped earnings history could produce.

Full Retirement Age (FRA) is then derived from Birth Year using the real SSA schedule: 66 for anyone born 1943-1954, rising by two months per birth year from 1955 through 1959, and 67 for anyone born 1960 or later. Claiming before FRA permanently reduces the benefit by 5/9 of 1% per month for the first 36 months early and 5/12 of 1% per month beyond that; claiming after FRA adds 8% per year in delayed retirement credits, capped at age 70 since credits stop accruing there. This is a simplified planning estimate, not an official benefit calculation -- it does not index your historical earnings to wage growth the way the SSA actually does, and your real benefit depends on your full earnings record, which only the SSA has. Current Age is collected but does not factor into this estimate -- every figure above is derived from Birth Year, Avg Annual Earnings, Years Worked, and Planned Retirement Age.