How the claiming-age math works
Social Security pays your full earned benefit — the amount on your SSA statement — at your full retirement age (67 for anyone born in 1960 or later). Claim earlier and the check is permanently reduced: 5/9 of 1% per month for the first 36 months early, and 5/12 of 1% per month beyond that. With a FRA of 67, claiming at 62 means a 30% permanent cut. Wait past FRA and you earn delayed retirement credits of 2/3 of 1% per month — 8% per year — until 70, so claiming at 70 with a FRA of 67 pays 124% of your base benefit. There is no benefit to waiting past 70.
What "break-even" really means
Claiming early gives you a head start of several years of smaller checks; claiming late gives you bigger checks that must catch up. The break-even age is where the two cumulative totals cross. With a $2,000 FRA benefit: age 67 overtakes 62 around age 78-79, and 70 overtakes 67 around age 82-83. Live shorter than the break-even and claiming early collected more; live longer and waiting wins — by an amount that keeps growing every year you live past it.
Why the break-even number isn't the whole answer
- Longevity insurance: a 65-year-old man has roughly even odds of reaching 84, a woman 87 — past the typical break-evens. The bigger age-70 check is inflation-adjusted income you cannot outlive, which matters most precisely in the scenario where you live long and other savings run low.
- Survivor benefits: when one spouse dies, the survivor keeps the larger of the two checks. A higher earner delaying to 70 raises the income floor for whichever spouse lives longer — often the strongest argument for waiting even in average health.
- COLA doesn't change the ranking: annual cost-of-living adjustments scale all claiming ages proportionally, so the break-even logic in today's dollars still holds.
- The earnings test: claim before FRA while still working and benefits are temporarily withheld ($1 per $2 earned above roughly $23k/yr) — recalculated in your favor at FRA, but it undercuts the point of claiming early to spend the money.
Reasonable rules of thumb
Claim early if you genuinely need the income, your health or family history points to a shorter life, or you're the lower earner in a couple where the higher earner will delay. Delay toward 70 if you're healthy, can bridge the gap from savings or work, or you're the higher earner in a couple. Test whether your savings can cover the bridge years with the retirement withdrawal calculator, and see what your nest egg needs to be overall with the FIRE number calculator and retirement savings calculator.