Compare claiming Social Security at 62, 67 (Full Retirement Age), or 70 — and see which claim age maximises lifetime benefits for your expected lifespan.
If you expect to live past 82-83, deferring to age 70 maximises lifetime benefits. Past 78-79, claiming at FRA (67) beats claiming at 62. Below 78, the early claim wins on cumulative payout — though spousal benefits and immediate cash needs often justify earlier claims regardless. Family longevity history is the single biggest input.
| Claim Age | Monthly Benefit | Annual | Cumulative to Life Expectancy | Notes |
|---|
Takes about 2 minutes.
FRA depends on birth year. Full Retirement Age is 66 for those born 1943-1954, 66+2 months per year for 1955-1959, and 67 for born 1960 and later. This calculator assumes FRA = 67, which is correct for anyone reaching FRA in 2027 or later. For older retirees the multipliers and break-even ages shift slightly.
Claim-age multipliers. Starting from FRA = 100%, each month claimed early reduces the benefit by 5/9 of 1% for the first 36 months, then 5/12 of 1% for additional months. The result: age 62 = 70%, age 63 = 75%, age 64 = 80%, age 65 = 86.67%, age 66 = 93.33%. Past FRA, delayed retirement credits add 8% per year (2/3 of 1% per month): age 68 = 108%, age 69 = 116%, age 70 = 124%. After 70 there is no further benefit increase.
Break-even math. Set cumulative_early = cumulative_late: monthly_early × 12 × (D - claim_early) = monthly_late × 12 × (D - claim_late). Solve for D (death age). At 70% vs 100% multipliers, breakeven is age 78.67. At 100% vs 124%, it's 82.5. Living past breakeven means the later claim wins; dying before means the earlier claim wins.
The 8% deferred-credit return. Each year of deferral between FRA and 70 raises lifetime monthly benefit by 8% — a guaranteed, government-backed return that no public investment can replicate. For anyone with reasonable life expectancy and the ability to defer, this is one of the highest-quality returns available in finance.
This is US-only. The UK State Pension and South African Government Pension Fund have completely different structures. No SA equivalent of the claim-age trade-off exists. The UK State Pension can be deferred for a 5.8%/year increase, but the comparable calculation is simpler.
A 60-year-old looks at the SSA statement and sees a $2,500/month benefit at FRA (age 67). Family history is strong — both parents lived to 90 — so realistic life expectancy is around 88. Income from a 401k and small pension can cover spending in early retirement, so deferring SS is feasible.
Three options. Claim at 62: 70% × $2,500 = $1,750/month, $21,000/year. Cumulative from 62 to 88 = 26 years × $21,000 = $546,000. Claim at 67: 100% × $2,500 = $2,500/month, $30,000/year. Cumulative 67 to 88 = 21 years × $30,000 = $630,000. Claim at 70: 124% × $2,500 = $3,100/month, $37,200/year. Cumulative 70 to 88 = 18 years × $37,200 = $669,600.
The 70-claim wins by $39,600 over the 67-claim and $123,600 over the 62-claim. For someone with this life expectancy, deferral to 70 is unambiguously the right answer financially. The downside: they need to fund 8 years (62-70) from other sources — typically about $250,000-300,000 of bridge spending, which the 401k usually covers.
Flip life expectancy down to 78. Claim at 62: 16 years × $21,000 = $336,000. Claim at 67: 11 years × $30,000 = $330,000. Claim at 70: 8 years × $37,200 = $297,600. At this lifespan, 62 wins narrowly. The math reverses cleanly around the break-even ages: living past 79 favours waiting to 67; living past 83 favours waiting to 70.
Last reviewed: · See editorial policy