Social Security is the one retirement decision most people make exactly once, with no do-over, and it sets the size of every monthly check for the rest of their life. Claim at 62 and you lock in roughly 70% of your full benefit — permanently. Wait until 70 and you lock in about 124% of it.
This guide covers how the benefit is calculated, what each claiming age pays under the 2026 rules, the earnings and tax rules that can claw money back, and the factors that should actually drive the decision.
How your benefit is actually calculated
Eligibility comes first: you need 40 work credits — effectively 10 years of covered work. In 2026, one credit requires $1,890 in earnings, capped at four a year. Credits past 40 establish eligibility but don't increase your benefit.
The amount comes from your highest 35 years of inflation-indexed earnings. The Social Security Administration indexes each year's wages for national wage growth, takes the best 35, and divides by the months in them to get your average indexed monthly earnings (AIME). If you worked fewer than 35 years, the missing years enter as zeros — which is why one extra year of work late in a career can move the number more than people expect.
Your AIME then runs through a progressive formula producing your primary insurance amount (PIA), the benefit payable at full retirement age. For workers first eligible in 2026, it pays 90% of the first $1,286 of AIME, 32% of the next slice up to $7,749, and 15% above that — a structure that replaces a far higher share of income for lower earners. Only earnings up to the taxable maximum count, $184,500 in 2026, up from $176,100; income above that cap is neither taxed for Social Security nor credited toward your benefit.
What each claiming age pays
Full retirement age (FRA) is 67 for anyone born in 1960 or later. For those born 1955–1959 it steps up in two-month increments from 66, and it's 66 for people born 1943–1954.
You can claim as early as 62 or as late as 70. Claiming before FRA cuts your benefit by 5/9 of 1% per month for the first 36 early months, then 5/12 of 1% for each additional month. Claiming after FRA earns delayed retirement credits of 2/3 of 1% per month — 8% a year — which stop accruing at 70.
For someone with an FRA of 67, that produces the following share of PIA:
| Claiming age | Benefit as % of full benefit |
|---|---|
| 62 | 70% |
| 63 | 75% |
| 64 | 80% |
| 65 | 86⅔% |
| 66 | 93⅓% |
| 67 (FRA) | 100% |
| 70 | 124% |
The spread is large in absolute terms. SSA's 2026 fact sheet puts the all-retired-workers figure at $2,071 a month after this year's 2.8% cost-of-living adjustment. On a benefit that size, the age-62 and age-70 versions of the same earnings record differ by roughly $1,100 a month — and since each COLA is a percentage, a larger starting benefit compounds every future increase.
Early claiming is still the most common choice: SSA data for 2025 shows about 23.8% of newly entitled retired workers started at 62, while under 10% of new claimants wait until 70.
Working while you claim, and how benefits get taxed
Two rules quietly reduce what you keep if you claim early and keep earning.
The retirement earnings test applies before FRA. In 2026, if you're under FRA for the whole year, SSA withholds $1 of benefits for every $2 you earn above $24,480. In the year you reach FRA, the limit rises to $65,160, only earnings before that month count, and withholding drops to $1 for every $3; from the month you reach FRA onward there's no test at all. Withheld money isn't forfeited — SSA recalculates your benefit at FRA to credit back the withheld months.
Taxation is the second rule. Up to 85% of benefits can be included in taxable income once your combined income (adjusted gross income, plus nontaxable interest, plus half your benefits) exceeds $25,000 filing single or $32,000 filing jointly; above $34,000 and $44,000 respectively, the maximum 85% inclusion applies. Those thresholds haven't been indexed since 1983, so a growing share of recipients crosses them each year.
The factors that should actually decide it
Longevity. Break-even analysis — the age at which lifetime benefits from waiting overtake those from claiming early — typically lands in the late 70s to early 80s, depending on the ages compared. Since you can't know which side you'll land on, the better framing is insurance: delaying buys a larger inflation-adjusted, government-backed income stream for the scenario hardest to self-fund, which is living a very long time.
Whether you have a bridge. Delaying only works if something covers spending in the interim: retire at 63 and claim at 70, and you need seven years of income from savings. That's a cash-flow question before it's a Social Security question, so model both legs together in the Retirement Planning Calculator, then pressure-test the bridge years against real spending in the Household Budget Calculator.
The alternative use of the money. The usual argument for claiming early is investing the checks instead. Delayed retirement credits are a guaranteed 8% annual increase in an inflation-indexed benefit that lasts as long as you do — hard to beat on a risk-adjusted basis, though an invested early benefit does leave a balance to heirs. To see what the invested path would need to earn to keep up, run both through the Compound Interest Calculator.
Marriage. The most underweighted factor. A spousal benefit is worth up to 50% of the higher earner's PIA at the spouse's FRA, reduced if claimed as early as 62. More consequentially, a survivor benefit is worth up to 100% of the deceased worker's benefit, and a surviving spouse can claim a reduced one as early as 60, starting around 71.5%. Because the survivor keeps the higher of the two benefits, the higher earner's claiming age sets the income floor for whichever spouse lives longer — which argues for the higher earner delaying.
Common mistakes, and the one partial do-over
Treating 65 as the number. Age 65 is when Medicare starts, not when Social Security pays in full. Conflating the two costs roughly 13% of the benefit for anyone with an FRA of 67.
Claiming early out of trust-fund fear. The 2026 Trustees Report projects OASI reserves depleting in the fourth quarter of 2032, with 78% of scheduled benefits still payable from continuing tax revenue, and the combined OASI and DI funds depleting in 2034 with about 83% payable. That's a real shortfall needing a legislative fix, but it isn't zero — and claiming early permanently cuts your benefit by up to 30% to hedge a smaller reduction that isn't yet law.
Not checking your earnings record. The benefit is only as accurate as the wage history behind it. Review your statement at SSA's site for missing or misreported years while you still have pay records to prove them.
Assuming it's irreversible. It mostly is, with two exceptions. You can withdraw an application within 12 months using Form SSA-521 — once in your lifetime, and only if you repay everything you and your family received on it. Once you've reached FRA you can instead suspend payments until 70, earning delayed retirement credits for every suspended month, though that also suspends benefits others receive on your record.
Frequently asked questions
Is it better to claim at 62 or 70?
Neither is universally better. Delaying generally wins if you expect average or better longevity, can fund the gap years, or are the higher earner in a couple whose survivor inherits the benefit. Claiming early wins with a shortened life expectancy, no other income to live on, or no survivor to protect.
Does claiming early reduce my benefit permanently?
Yes. The reduction for claiming before full retirement age is permanent, not a discount that resets at FRA. The one adjustment that does happen is a recalculation crediting back months withheld under the earnings test.
Can I work while collecting Social Security?
Yes, with limits before FRA. In 2026, SSA withholds $1 for every $2 earned above $24,480 if you're under FRA all year, and $1 for every $3 above $65,160 in the year you reach FRA. After the month you reach FRA you can earn any amount with no withholding.
Will Social Security still be there when I retire?
The program doesn't disappear when reserves run out, because incoming payroll taxes keep funding benefits. The 2026 Trustees Report projects 78% of scheduled benefits payable from the OASI fund after its reserves deplete in late 2032, and about 83% for the combined funds after 2034. Congress has historically acted on such shortfalls, and most proposals phase changes in over time.
How does my spouse's benefit affect my claiming decision?
Substantially, if there's a meaningful gap in your earnings records. The surviving spouse keeps the larger of the two benefits, so the higher earner's claiming age sets the household's income floor after the first death — raised permanently by delaying, lowered permanently by claiming early.
Disclaimer
This guide is for general educational purposes only and does not constitute personalized financial, tax, or legal advice. Every reader's situation is different — consult a licensed financial advisor, accountant, or attorney before making decisions based on this content. Figures and rules cited here reflect the most recent information available at time of publication and may change; verify current limits and regulations before acting.