Take a worker with a $2,000 monthly benefit at a full retirement age of 67. Claiming at 62 cuts the check to roughly $1,400. Waiting until 70 grows it to about $2,480. Same earnings record — a 77% difference in the monthly amount, for life, with cost-of-living adjustments compounding on the larger base.

The break-even way to think about it

Claim early and you collect more checks; claim late and you collect bigger ones. The crossover typically lands around age 80 to 82. Live past it and waiting won; don't and claiming early did. Since you can't know your date, the better questions are about what you can know:

  • Health and family longevity. If your parents lived into their 90s, the odds favor patience.
  • A spouse's survivor benefit. When the first spouse dies, the survivor keeps the larger of the two checks. The higher earner waiting until 70 is longevity insurance for the household, not just for one person.
  • What you'd live on while waiting. Bridging from savings can make sense; taking on debt to wait rarely does.
  • Whether you're still working. Before full retirement age, earnings above the annual limit temporarily withhold benefits.

The bottom line

This is a household decision, not an individual one, and it interacts with your withdrawals, taxes and Medicare timing. Model it once, properly, before you file — the election is hard to undo after the first twelve months.