United States · financial planning tool

Social Security Claiming-Age Break-Even Calculator

Compare monthly and cumulative retirement benefits at two claiming ages using SSA reduction and delay rules.

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Birth yearMonthly benefit at full retirement age $Earlier claiming ageLater claiming ageAnnual COLA assumption Include spousal excess benefit?Spouse monthly benefit at their full retirement age $Spouse already receiving benefits and SSA eligibility confirmed?

Use your SSA estimate at full retirement age. Ages may include months as decimals (for example, 66.5 means 66 years 6 months). Both scenarios receive the same assumed COLA. Optional spouse mode assumes you first claim your own and spousal benefits together at each comparison age, and your spouse is already receiving benefits. It combines reduced own retirement with the reduced excess over your own full-retirement-age amount; it does not add two full benefits. Earlier own claims, child-in-care, survivor, divorced-spouse and family-maximum cases need SSA review.

Official sources and scope

Rules and source methodology reviewed September 15, 2026.

SSA early-retirement reductions · SSA delayed retirement credits · SSA full retirement age · SSA spousal benefit reductions

Compare claiming ages month by month

The calculator determines full retirement age from birth year. Before full retirement age it applies SSA's monthly reduction: 5/9 of 1% for the first 36 months and 5/12 of 1% for additional months. After full retirement age it applies delayed retirement credits of 2/3 of 1% per month through age 70 for the birth years supported here.

It accumulates both benefit streams with the same entered COLA assumption and finds the first age when the later claim catches the earlier claim. This gross-benefit break-even is not a claiming recommendation. Taxes, the earnings test, Medicare premiums, spouse and survivor benefits, health, longevity, work history changes, and returns on earlier payments can materially change the decision.