Social Security Benefits Calculator
When to claim Social Security is one of the few retirement decisions that's genuinely hard to undo once made — and the gap between claiming early and claiming late is bigger than most people expect. This calculator translates that trade-off into a real dollar figure for your own benefit.
Enter your details to see your adjusted benefit.
How to use this calculator
- Find your estimated benefit at Full Retirement Age (67) on your SSA.gov statement.
- Enter the age you're considering claiming, between 62 and 70.
- Click "Estimate my benefit" to see how claiming early or late adjusts your monthly amount.
How the calculation works
Your benefit at Full Retirement Age (FRA) is treated as 100% — everything else is a percentage adjustment off that baseline. Claiming early reduces it by roughly 5/9 of 1% for each of the first 36 months early, and 5/12 of 1% for any additional months beyond that. Claiming late increases it by roughly 2/3 of 1% for each month past FRA, up to age 70. This mirrors the SSA's own actuarial reduction and delayed retirement credit formulas.
A worked example
Say your FRA benefit is $2,200 a month. Claim at 62 (60 months early) and the reduction works out to about 30%, dropping your check to roughly $1,540. Wait until 70 instead, and delayed credits add about 24%, pushing it to roughly $2,728. That's a difference of nearly $1,200 a month — over $14,000 a year — for the exact same lifetime earnings record, purely based on when you start.
Frequently asked questions
Why is Full Retirement Age used as the baseline?
FRA (66-67 depending on birth year, simplified to 67 here) is the age the SSA uses to calculate your unreduced benefit — early or delayed claiming is measured relative to it.
How much do I lose by claiming at 62?
Roughly 30% less than your FRA benefit, using the SSA's standard reduction formula applied here — the exact amount depends on how many months early you claim.
How much do I gain by delaying to 70?
Delayed retirement credits add about 8% per year past FRA, so claiming at 70 instead of 67 can increase your benefit by roughly 24%.
What is the "breakeven age" for claiming decisions?
It's the age at which total lifetime benefits from claiming later catch up to and surpass claiming earlier — commonly around 80-81 for a 62-vs-70 comparison. If you expect to live past that age, delaying often pays off in total lifetime benefits.
Where do I find my actual FRA benefit estimate?
Create a free account at ssa.gov/myaccount to see your personalized Social Security Statement, which uses your real earnings history rather than an estimate.
Does working while collecting benefits reduce them?
If you claim before your FRA and continue working, benefits can be temporarily withheld above certain earnings limits — that withholding stops, and your benefit is recalculated upward, once you reach FRA.