Take a worker whose Social Security benefit would be $1,000 a month at full retirement age. Claim at 62 and that check becomes about $700. Wait until 70 and it becomes about $1,240. Same earnings record, same taxes paid over the same career, and a gap of roughly 77 percent between the smallest and largest possible monthly check, locked in for life by one decision.
Few retirement choices move this much money on this little paperwork. The rules behind those numbers are mechanical and public, yet the claiming decision is often made on instinct or at the first eligible birthday. Here is the actual math for 62, 67, and 70, plus the two complications, working while collecting and the survivor benefit, that should shape the decision.
Start with your full retirement age
Everything keys off your full retirement age, the age at which you receive 100 percent of the benefit your earnings record has earned you. For everyone born in 1960 or later, that age is 67. The Social Security Administration’s retirement age charts show the schedule, including the slightly earlier full retirement ages for people born before 1960. The benefit you would get at that age is the baseline; claiming earlier subtracts from it and claiming later adds to it.
The cost of claiming at 62
You can start retirement benefits at 62, and the reduction follows a formula: five-ninths of one percent for each of the first 36 months you claim before full retirement age, plus five-twelfths of one percent for each month beyond 36. For someone with a full retirement age of 67 who claims the month they turn 62, that is 60 months early, which works out to a 30 percent cut. The $1,000 baseline becomes $700, per SSA’s own chart for workers born in 1960 or later.
Two things about that cut are commonly misunderstood. It is permanent; the check does not step up to the full amount when you later reach 67. And it compounds quietly, because every future cost-of-living adjustment is a percentage applied to a smaller base.
The reward for waiting past 67
Delay past full retirement age and the formula flips in your favor. Benefits grow by delayed retirement credits of two-thirds of one percent per month, 8 percent per year, for every month you wait beyond full retirement age up to 70. For a full-retirement-age-67 worker, waiting the full three years produces 124 percent of the baseline benefit: $1,240 on that $1,000 example. The credits stop at 70, so waiting past that birthday buys nothing; 70 is the latest claiming age worth choosing.
One planning note inside that window: delayed credits are applied for full months of delay, and you do not need to wait all the way to 70 to benefit. Every single month of delay between 62 and 70 nudges the check upward. A worker who intended to wait until 70 but needs the money at 68 and a half still collects 12 percent more than at 67.
Working while collecting: the earnings test
Claiming early while still working brings in the earnings test. In 2026, if you are under full retirement age all year, SSA withholds $1 in benefits for every $2 you earn above $24,480, according to the agency’s 2026 fact sheet. In the calendar year you reach full retirement age, a gentler rule applies: $1 withheld for every $3 earned above $65,160, counting only months before you reach that age. From your full retirement age onward, the test disappears and you can earn any amount without withholding.
Withheld benefits are not simply lost. When you reach full retirement age, SSA recalculates your benefit to credit the months withheld, as its working-while-collecting rules explain. Still, the practical takeaway is blunt: claiming at 62 while earning a full salary usually means volunteering for a permanent reduction on a benefit you partly do not receive yet.
The break-even question, and the one that matters more
The classic analysis asks when the bigger, later checks catch up with the smaller, earlier ones, and the crossover typically lands somewhere in a claimant’s late 70s to early 80s. Live shorter than that and claiming early won more dollars; live longer and delaying wins, with the gap widening every year after.
But for married couples, the more important number may be the survivor benefit. When one spouse dies, the survivor generally keeps the larger of the two checks, and the smaller one stops. That means the higher earner’s claiming age sets the income of whichever spouse lives longest. Delaying the higher earner’s benefit to 70 is less a bet on that person’s own lifespan than an insurance purchase for the surviving spouse, who may collect that enlarged check for a decade or more.
Run your own numbers before you decide
Generic examples only go so far, and your actual figures are a login away. A my Social Security account shows your earnings record and personalized estimates at every claiming age from 62 to 70, and checking the earnings record matters in its own right, since missing years shrink the benefit the formula produces. There is no universally correct claiming age. There is health, savings, work plans, a spouse’s benefit, and the math above; the mistake is deciding without looking at all five.
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