Determines your Full Retirement Age (FRA). FRA = 67
Find your FRA benefit at ssa.gov/myaccount — look for "Retirement" at your full retirement age
Drag the slider to see how each additional year affects your monthly benefit
Quick strategy shortcuts:
U.S. average ~82 at age 65. Adjust based on your health & family history.
Historical SSA average is 2.6%/yr. 2025 COLA was 2.5%.
Of all the financial decisions you'll make in retirement, few are as consequential — or as irreversible — as when to claim Social Security. Claim too early and you lock in a permanently reduced benefit for every month that remains in your life. Wait patiently and you could receive 55–77% more each month, compounded by annual COLA increases over a 20–30 year retirement.
The difference is not trivial. For someone with a $1,800/month FRA benefit, the gap between claiming at 62 ($1,260/month) versus claiming at 70 ($2,232/month) is $972 per month — every month, for life. Over a 20-year retirement, that difference compounds to well over $200,000 in additional lifetime income.
Yet most Americans claim at 62 or 63. Understanding why that may not be optimal — and when it might actually be the right call — is exactly what this calculator is designed to help you work out.
This calculator takes your Full Retirement Age (FRA) monthly benefit — the amount the Social Security Administration has calculated you're entitled to receive at your specific FRA — and applies the official SSA reduction and delayed credit formulas to show your exact monthly benefit at any claiming age from 62 to 70. It then projects cumulative lifetime income for three strategies (claim early, claim at FRA, claim at 70), includes your chosen COLA rate, and identifies the breakeven age — the specific birthday at which waiting starts producing more total lifetime income than claiming earlier.
The monthly benefit is the number you'll actually receive, deposited every month. The annual income is that monthly amount multiplied by 12. The lifetime total is the cumulative sum from your claiming age through your entered life expectancy, with COLA applied each year.
The most important number is the breakeven age. This is the age at which the cumulative lifetime income from waiting equals the cumulative income from claiming at 62. If you live past the breakeven age, waiting was the mathematically superior choice. If you don't, claiming early netted more total income.
The comparison table shows you three claiming strategies side by side with cumulative totals at ages 75, 80, 85, and 90. This lets you see at a glance which strategy wins at different life expectancies — crucial when your actual lifespan is unknown.
The SSA doesn't apply a simple linear reduction for claiming early. The official formula works in two tiers:
Claiming before FRA: Your benefit is reduced by 5/9 of 1% per month for the first 36 months before FRA, and by 5/12 of 1% per month for each additional month beyond that. For someone born in 1960 or later (FRA = 67) claiming at 62 — that's 60 months early — the reduction is: 36 × (5/9%) + 24 × (5/12%) = 20% + 10% = 30% total reduction. You receive 70% of your FRA benefit.
Claiming after FRA: You earn "delayed retirement credits" of exactly 8% per year (2/3 of 1% per month) for every month you delay past FRA, up to age 70. Waiting from FRA 67 to age 70 is 36 months × (2/3%) = 24% increase. You receive 124% of your FRA benefit.
This is why the math is non-trivial and why most online benefit estimates get it wrong — the two-tier formula produces different breakpoints depending on your specific FRA and claiming age.
Consider David (born 1960, FRA = 67) and Carol (born 1962, FRA = 67), both planning to retire at 62. David's FRA benefit is $2,400/month; Carol's is $900/month.
If they both claim at 62: David gets $1,680/month, Carol gets $630/month. Combined household: $2,310/month. Simple and easy.
If they optimize: Carol claims at 62 ($630/month — providing income during early retirement) and David waits until 70 ($2,976/month). Combined household: $3,606/month by age 70. The breakeven for David waiting happens around age 79–80. Since David is male and Carol is female, statistically at least one of them will likely live past 85.
More importantly: when David dies first (statistically likely), Carol receives David's $2,976/month as her survivor benefit — a 372% increase over her own $630. By having David maximize his benefit, they protected Carol's income for potentially 20+ years of widowhood.
This coordination strategy — one spouse claims early for income, the higher earner maximizes their benefit — can produce $150,000–$300,000 more in household lifetime income than both claiming at 62. Yet most couples never model it.
Mistake 1: Claiming at 62 as the default without calculating the permanent cost. The single most common mistake is treating 62 as the obvious choice because it's the earliest eligible age. "I'll get more checks" sounds logical until you realize that a 30% permanent reduction means every one of those early checks costs you dearly for the rest of your life. Someone who lives to 85 and claimed at 62 instead of 67 has received significantly less total income — even though they collected for 5 more years. Use this calculator to see the actual numbers for your situation before treating early claiming as automatic.
Mistake 2: Assuming the breakeven age is the same for everyone. The breakeven age between claiming at 62 versus 70 is often stated as "around 80." But that assumes no COLA. When you include Social Security's historical average COLA of 2.6% per year, the breakeven shifts earlier — because the larger payment from waiting gets more COLA increases, compounding the advantage. This calculator includes COLA in the cumulative projections, which is why the results may show a different breakeven than you've seen in simpler calculators.
Mistake 3: Not accounting for taxes on Social Security benefits. Up to 85% of your Social Security benefit may be subject to federal income tax if your "combined income" (adjusted gross income + non-taxable interest + half of SS) exceeds $34,000 for individuals or $44,000 for married couples. This calculator shows gross benefit amounts — your actual after-tax income will depend heavily on your other income sources. In some cases, Roth conversions or strategic withdrawal planning can reduce the taxable portion of your benefits significantly. This is worth discussing with a tax professional.
Numbers are only part of the decision. Several factors this calculator cannot model:
FIRE Calculator — If you're planning to retire early and Social Security will eventually be part of your income, the FIRE Calculator helps you determine how large a portfolio you need to bridge from your early retirement date to your optimal Social Security claiming age.
Roth vs. Traditional IRA — Your retirement account structure directly affects how much of your Social Security is taxable. Having more Roth (tax-free) income in retirement can help you stay below the thresholds where SS benefits become taxable — potentially worth thousands per year.
Inflation Calculator — Social Security is one of the rare income sources with built-in inflation protection through annual COLA. Understanding how inflation erodes the purchasing power of fixed-income sources like pensions makes Social Security's COLA feature — especially on the larger benefits earned by waiting — even more valuable.