Social Security is the single largest retirement asset for most American workers, yet very few people know what their monthly check will actually be. This calculator estimates your retirement benefit using the same three-step formula the Social Security Administration (SSA) uses: it converts your lifetime earnings into an Average Indexed Monthly Earnings (AIME) figure, applies the progressive Primary Insurance Amount (PIA) bend-point formula, and then adjusts that PIA up or down based on the age you choose to claim.
Move the sliders and every number updates instantly. Compare claiming at 62, at your Full Retirement Age (FRA), and at 70 to see how much a few years of waiting changes your monthly check — and your lifetime income.
How to Use
- Enter your Average Indexed Annual Earnings. This is the average of your highest 35 years of Social-Security–covered wages, wage-indexed to today's dollars. The easiest source is your my Social Security statement, which already shows this figure. If you are still working, project your future earnings at today's wage level.
- Set your Year of Birth. The SSA uses this to compute your Full Retirement Age. Anyone born in 1960 or later has an FRA of 67; people born between 1955 and 1959 have an FRA that climbs in two-month steps from 66 years and 2 months to 66 years and 10 months.
- Choose the Age You Will Claim Benefits. You can start as early as 62, at your FRA, or as late as 70. Claiming early permanently reduces your check; delaying earns delayed-retirement credits.
- Read the result card. The AIME and PIA lines show the math behind the number, the adjustment line shows how much your chosen claiming age changes the PIA, and the highlighted monthly benefit is your estimated check.
The engine uses the 2025 bend points ($1,184 and $7,119) published by the SSA. Bend points are wage-indexed every year, so a worker turning 62 in a different year would see slightly different dollar thresholds.
How the SSA Calculates Your Benefit
The official formula has three layers.
Step 1 — AIME. The SSA takes your 35 highest years of covered earnings, indexes each past year to today's average wage, sums them, and divides by 35 × 12 = 420 months. That gives your Average Indexed Monthly Earnings (AIME).
Step 2 — PIA. The PIA formula is progressive, which means lower earners get back a much higher share of their AIME:
- 90% of the first $1,184 of AIME,
- plus 32% of AIME between $1,184 and $7,119,
- plus 15% of AIME above $7,119.
For example, an AIME of $5,000 produces a PIA of 0.90 × $1,184 + 0.32 × ($5,000 − $1,184) = $1,065.60 + $1,221.12 = $2,286.72 per month at FRA.
Step 3 — Claiming-age adjustment. The PIA is the check you get at your FRA. Claim earlier and the SSA permanently reduces it; claim later and it grows by delayed-retirement credits.
- Claim at 62 (FRA 67): 60 months early. The first 36 months cut benefits by 5/9 of 1% per month, and the next 24 months by 5/12 of 1% per month — a total reduction of 30%, so you receive 70% of PIA.
- Claim at FRA: you receive 100% of PIA.
- Claim at 70: 36 months of delayed credits at 2/3 of 1% per month (8% per year) raise the benefit by 24%, so you receive 124% of PIA.
Why Your Claiming Age Matters More Than You Think
A worker with a PIA of $2,287 who claims at 62 receives about $1,601 per month. The same worker who waits until 70 receives about $2,836 per month — a difference of more than $1,200 every month, for life, and that difference is also indexed to inflation through every future COLA. The breakeven point between claiming at 62 versus 70 is typically around age 80–82. If you expect to live past that, delaying is almost always the higher-expected-value choice; if you have serious health concerns or need the cash now, claiming early can still be rational.
Delayed credits stop growing after age 70, so there is no benefit to waiting past 70.
Examples
Example 1 — Average earner, full retirement. A worker born in 1960 with average indexed annual earnings of $60,000 has an AIME of $5,000 and a PIA of $2,286.72. Claiming at FRA (67) gives a monthly benefit of $2,286.72, or about $27,440 per year.
Example 2 — Early claiming at 62. The same $60,000 earner decides to retire at 62. The 30% permanent reduction cuts the monthly check to $1,600.70, or about $19,208 per year. That reduction stays in place for the rest of their life, even after COLAs.
Example 3 — Delayed claiming to 70. Waiting until 70 adds 24% in delayed credits. The monthly check becomes $2,835.53, or about $34,026 per year — roughly $1,235 more every month than claiming at 62.
Example 4 — High earner. A worker with average indexed earnings of $1,500,000 per year has an AIME of $125,000. Because only the first $7,119 of AIME is weighted at 32% and anything above that at just 15%, the PIA is capped around $20,647 per month at FRA — close to the maximum benefit the SSA pays.
Example 5 — Zero earnings. Someone with fewer than 10 years of covered work, or who enters $0, sees a $0 AIME and a $0 benefit. Social Security requires at least 40 work credits (about 10 years) to qualify for a retirement benefit at all.
FAQ
How is my Social Security benefit calculated?
The SSA averages your highest 35 years of wage-indexed earnings to get your AIME, then applies a progressive PIA formula: 90% of the first $1,184 of AIME, 32% of the next bracket up to $7,119, and 15% of anything above that. The resulting PIA is your monthly benefit at Full Retirement Age.
What is my Full Retirement Age?
If you were born in 1960 or later, your FRA is 67. If you were born between 1955 and 1959, your FRA is 66 plus two months for each year after 1955 (so 1956 = 66 and 4 months, 1957 = 66 and 6 months, and so on). Anyone born in 1954 or earlier has an FRA of 66.
Can I claim Social Security at 62 and still work?
Yes, but if you are below FRA and earn more than the annual exempt amount ($23,400 in 2025), the SSA withholds $1 of benefits for every $2 you earn above the limit. Those withheld benefits are not lost — they are added back into your PIA once you reach FRA, so it is effectively a deferral rather than a permanent cut.
Does delaying benefits past 70 help?
No. Delayed-retirement credits stop accruing at age 70, so there is no financial reason to wait longer. Your benefit will be the same at 71 as it was at 70, but you will have missed a year of checks.
Are Social Security benefits taxed?
Maybe. Up to 50% of your benefit is taxable if your combined income (adjusted gross income plus nontaxable interest plus half your benefit) is between $25,000 and $34,000 for a single filer; up to 85% is taxable above $34,000. These thresholds are not indexed to inflation, so more retirees become subject to the tax every year.
Will my benefit keep up with inflation?
Yes. Once you claim, your benefit receives an annual Cost-of-Living Adjustment (COLA) tied to CPI-W. Importantly, the delayed-credit percentage you earn by waiting also compounds on top of every future COLA, which is one reason delaying to 70 is so powerful for people with a long life expectancy.
How do I get my exact benefit number?
Create a free my Social Security account at ssa.gov. It shows your actual AIME, your projected benefit at 62, FRA, and 70, and is the official record the SSA uses. This calculator is a planning tool; the SSA's own statement is the authoritative number.
Disclaimer
This Social Security calculator is provided for informational purposes only and does not constitute financial, tax, or legal advice. Estimates use the 2025 SSA bend points and standard early/delayed retirement factors; actual benefits depend on your complete earnings record, future COLAs, any Windfall Elimination Provision or Government Pension Offset that may apply, and Social Security's long-term funding status. Always verify your projected benefit with your personal my Social Security account at ssa.gov and consult a qualified financial planner before making a claiming decision.