Claiming Social Security at 62, 67, or 70: How to Actually Decide

Social Security gives you a nine-year window to start your benefit — any month from age 62 to age 70. The rules that change your check are published and precise. The decision is anything but, because it depends on the one number nobody has: how long you'll live.

Let's separate what's known from what's not.

The known part: the formula

Your benefit is anchored to your full retirement age (FRA) — 67 for everyone born in 1960 or later. Claim at FRA and you get 100% of your earned benefit.

Claim earlier and the check shrinks by a fixed schedule: five-ninths of 1% for each of the first 36 months early, and five-twelfths of 1% for each month beyond that. For someone with an FRA of 67, claiming at 62 means 70% of the full benefit — permanently.

Wait past FRA and delayed retirement credits add two-thirds of 1% per month — 8% per year — until 70. Claim at 70 and the check is 124% of the full benefit, also permanently. There is no reason to wait past 70; the credits stop.

So a $2,400 FRA benefit becomes roughly $1,680 at 62 or $2,976 at 70. That's a 77% difference in the monthly check, from the same earnings record.

The unknown part: how long the checks last

A smaller check started at 62 gets a five-to-eight-year head start. The larger check has to catch up. The age where waiting pulls ahead in cumulative dollars — the break-even age — usually lands in the late 70s to early 80s, depending on which two ages you compare.

That turns the decision into a question you can actually reason about:

• Expect to live well past your early 80s? Waiting tends to win, and keeps winning more every year you live. Family history of longevity, good health, and the fact that you're planning for a long retirement all point this way.
• Health or family history suggesting otherwise? Claiming earlier is a perfectly rational answer, not an impatient one.
• Need the money to retire at all? Then the break-even math is academic — claiming is what makes the plan work, and that's fine.

The part married couples miss

For couples, two more facts change the calculus. First, when one spouse dies, the survivor keeps the larger of the two checks — not both. Second, that means the higher earner's claiming decision is really a decision about the survivor's income, possibly decades from now.

That's why a common strategy is asymmetric: the higher earner waits (growing the check that will protect whichever spouse lives longest), while the lower earner claims earlier for household cash flow. It's not the only answer, but it's the reasoning worth starting from.

Three practical notes

Working before FRA? The earnings test temporarily withholds benefits if you claim early while earning above a threshold ($24,480 in 2026). The money isn't truly lost — checks are recalculated upward at FRA — but it makes claiming early while working full-time less attractive than it looks.

Taxes count too. Up to 85% of benefits can be taxable depending on your other income, and big IRA withdrawals can drag more of your benefit into taxable territory. Claiming later sometimes pairs nicely with spending down IRAs (or doing Roth conversions) in your 60s.

Your statement is the starting line. Every calculation begins with your actual earned benefit — pull your statement at ssa.gov rather than guessing.

Try your own numbers

The Social Security Timing calculator compares all nine claiming ages with your benefit amount and life-expectancy assumption, and shows the break-even ages on one chart. Ten minutes with it turns this article's logic into your own numbers.