Social Security Benefits Calculator
Estimate your Social Security retirement benefit based on your earnings history and claiming age.
What this calculator does
This calculator estimates your monthly Social Security retirement benefit and shows how it changes with the age you claim. It builds an average indexed monthly earnings figure from your income, applies the progressive bend point formula to produce your primary insurance amount at full retirement age, then adjusts for early claiming reductions or delayed retirement credits.
The comparison across claiming ages is the part worth studying. Social Security is one of the few decisions in retirement planning where a single choice permanently changes your income by more than 70 percent between the earliest and latest options, and where the correct answer depends heavily on your health and your spouse.
When to use it
The natural moment is in your late fifties or early sixties, when the claiming decision is close enough to matter and far enough away to plan around. Seeing that a claim at 62 pays 70 percent of full retirement age while a claim at 70 pays 124 percent reframes the choice from convenience to arithmetic.
It is also useful much earlier, as an input to every other retirement projection you run. Because Social Security is inflation-linked and lasts for life, it substitutes for a very large amount of capital, and knowing your approximate benefit changes how big a portfolio you actually need to build.
Understanding the inputs
Current annual income drives the AIME approximation, so enter your typical covered earnings rather than an unusually good or bad year. Bear in mind that earnings above the taxable maximum, $176,100 in 2025, do not count toward your benefit, so a $400,000 salary produces the same AIME contribution as $176,100.
Retirement age here is your claiming age, which need not match the age you stop working. Many people retire at 65 and claim at 70, spending down savings in between to buy a permanently larger inflation-linked income. Testing 62, 67 and 70 is the most informative thing you can do with this calculator.
How is this calculated?
Calculates AIME (Average Indexed Monthly Earnings) and applies the PIA (Primary Insurance Amount) formula with bend points, adjusted for early or delayed retirement.
A worked example
Take an AIME of $6,000. The formula gives 90 percent of the first $1,226, which is $1,103, plus 32 percent of the remaining $4,774, which is $1,528. The primary insurance amount is therefore about $2,631 a month at a full retirement age of 67.
Claim at 62 and the 30 percent reduction leaves roughly $1,842 a month. Delay to 70 and the 24 percent in credits raises it to about $3,263. That is a difference of $1,421 a month for life. The early claimant is ahead on cumulative benefits until roughly age 80, after which the gap reverses permanently.
Limitations and assumptions
This estimate approximates AIME from a single income figure rather than indexing 35 years of actual earnings, so it will be least accurate for anyone with a variable career, gaps out of work, or employment not covered by Social Security. Your ssa.gov statement uses your real record and should override this figure.
It also excludes spousal and survivor benefits, the earnings test if you claim while still working, the Windfall Elimination and Government Pension Offset rules as they now stand, income tax on benefits, and Medicare premiums deducted at source. And future benefits depend on legislation: the trust fund projections imply changes at some point, which no calculator can model.
Common Questions
- How is my benefit actually calculated?
- Social Security indexes your 35 highest-earning years, averages them into a monthly figure called AIME, then applies a progressive formula. In 2025 you receive 90 percent of the first $1,226 of AIME, 32 percent of the amount up to $7,391, and 15 percent above that. The result is your primary insurance amount at full retirement age.
- What is my full retirement age?
- For anyone born in 1960 or later it is 67. It phases up from 66 for those born between 1955 and 1959. Full retirement age is the reference point for everything else: claim earlier and your benefit is permanently reduced, claim later and it is permanently increased.
- How much do I lose by claiming at 62?
- With a full retirement age of 67, claiming at 62 cuts your benefit by 30 percent permanently. The reduction is five ninths of one percent per month for the first 36 months early and five twelfths of one percent per month beyond that. It does not reset when you reach 67.
- How much do I gain by waiting until 70?
- Delayed retirement credits add 8 percent a year between full retirement age and 70, so waiting from 67 to 70 raises your benefit by 24 percent for life. Credits stop accruing at 70, so there is never a reason to delay beyond that birthday.
- When is the break-even point?
- Comparing a claim at 62 against one at 70, the later claimant usually catches up in total benefits received somewhere around age 80 to 81. Beyond that they are ahead for life. Since a 65-year-old today has a life expectancy in the mid-eighties, delaying is a reasonable bet for anyone in good health.
- Do only 35 years of earnings count?
- Yes, and years with no earnings enter the average as zeros. If you have fewer than 35 covered years, working an extra year replaces a zero and can lift your benefit noticeably. Once you have 35 solid years, an additional year only helps if it displaces a low-earning one.
- Can I work while claiming?
- Yes, but before full retirement age the earnings test withholds $1 for every $2 you earn above $23,400 in 2025, with a higher threshold in the year you reach full retirement age. The withheld amounts are not lost: your benefit is recalculated upward once you reach full retirement age.
- Are Social Security benefits taxable?
- Often. Up to 50 percent of benefits become taxable when combined income exceeds $25,000 filing single or $32,000 filing jointly, and up to 85 percent above $34,000 and $44,000. Those thresholds are not indexed to inflation, so more retirees cross them every year.
- What can a spouse claim?
- A spouse can receive up to 50 percent of your primary insurance amount at their own full retirement age, reduced if claimed earlier. Survivors can receive up to 100 percent of what the deceased was receiving. That survivor rule is a strong argument for the higher earner in a couple to delay claiming.
- How accurate is this estimate?
- It applies the real bend point formula but derives AIME from your current annual income rather than a full indexed earnings history, so it is an approximation. If your earnings have varied a lot, or you have years outside covered employment, the official estimate on your ssa.gov statement will be more accurate.