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Claiming at 62 costs 30%; waiting to 70 pays 124%. The crossover is the question.
Social Security reduces benefits 5/9 of 1% per month claimed early (30% less at 62) and credits 8% per year delayed past full retirement age (24% more at 70). Whether waiting wins depends on one thing: how long you live. This calculator applies the official SSA adjustment rules and computes the exact breakeven age between any two claiming ages.
People approaching 62 use it to see the real trade: a 30% haircut for eight extra years of checks, with the crossover age made explicit. Couples use it for the higher earner — delaying to 70 is really buying the survivor a bigger check.
Roughly age 80–81 for a FRA-67 worker: the 62-claimant's eight-year head start is overtaken by the 70-claimant's 77% larger monthly check around age 80.4. Median life expectancy at 62 is about 82 for men and 85 for women — past the breakeven — which is why most analysts say delaying is the better bet for healthy singles.
No — delayed retirement credits stop at 70, so there is never a financial reason to claim later. But credits also stop accumulating the month you claim, and the earnings test can withhold benefits before FRA if you work. The window that matters is 62–70.
Couples change everything: the higher earner delaying to 70 effectively buys the survivor a 24% larger check for life, since the surviving spouse keeps the larger benefit. That survivor insurance is often worth more than the breakeven math — model it before the lower earner claims early.