Social Security Benefit Estimate Calculator
Estimate your monthly Social Security benefit from your average indexed earnings and claiming age using the SSA bend-point formula.
How to use this tool
- Enter your average indexed monthly earnings (AIME) — see your SSA statement.
- Pick the age at which you plan to claim benefits.
- Read your estimated monthly and annual benefit and your PIA at full retirement age.
- Try different claiming ages to see the effect of claiming early or delaying.
Your Social Security benefit depends on your lifetime earnings and the age you claim. Enter your average indexed monthly earnings and a claiming age to estimate your monthly check.
Formula
Primary insurance amount (PIA) applies three replacement factors to your AIME across two bend points ($1,174 and $7,078 for 2024):
PIA = 0.90 × min(AIME, 1174) + 0.32 × (min(AIME, 7078) − 1174) + 0.15 × (AIME − 7078).
Claiming adjustment (full retirement age 67): claiming early reduces the PIA by 5⁄9% per month for the first 36 months and 5⁄12% per month beyond that; delaying past 67 adds 2⁄3% per month (8% per year) up to age 70.
How it works
Social Security retirement benefits are built from your average indexed monthly earnings (AIME), the inflation-adjusted average of your 35 highest earning years. The Social Security Administration runs that AIME through a progressive, two-bend-point formula that replaces a high share of low earnings and a much smaller share of high earnings, producing your primary insurance amount (PIA) — the benefit payable at full retirement age.
This calculator applies the 2024 bend points and the standard claiming adjustments around a full retirement age of 67. Claiming as early as 62 permanently reduces the benefit, while delaying to as late as 70 earns delayed retirement credits of 8% per year. We hold the AIME fixed and apply only the actuarial age adjustment, so the comparison across claiming ages is clean.
This is a simplified estimate. It does not index your historical earnings for you, model future cost-of-living adjustments, apply the Windfall Elimination Provision, spousal or survivor rules, or earnings-test withholding. For a personalized figure use your SSA statement. Reviewed by the AbraCalc Retirement Desk against the SSA benefit formula. This calculator provides general information, not financial advice; consult a qualified professional for decisions about your own situation.
Worked example
AIME $6,000, claiming at full retirement age 67
- First bend: 0.90 × $1,174 = $1,056.60.
- Second bend: 0.32 × ($6,000 − $1,174) = 0.32 × $4,826 = $1,544.32.
- AIME is below the upper bend point ($7,078), so the 15% tier adds nothing.
- PIA = $1,056.60 + $1,544.32 = $2,600.92.
- Claiming at 67 is exactly full retirement age, so no reduction or credit applies.
- Annual benefit = $2,600.92 × 12 = $31,211.04.
Estimated monthly benefit: $2,600.92 — a PIA of $2,600.92, or $31,211.04 per year.
Benefit by claiming age for a $2,600.92 PIA (FRA 67)
| Claiming age | Adjustment | Monthly benefit |
|---|---|---|
| 62 | −30% | $1,820.64 |
| 63 | −25% | $1,950.69 |
| 64 | −20% | $2,080.74 |
| 65 | −13.33% | $2,254.13 |
| 66 | −6.67% | $2,427.53 |
| 67 | 0% | $2,600.92 |
| 68 | +8% | $2,808.99 |
| 69 | +16% | $3,017.07 |
| 70 | +24% | $3,225.14 |
Key terms
- AIME
- Average indexed monthly earnings — the inflation-adjusted average of your 35 highest-earning years, used as the input to the benefit formula.
- PIA
- Primary insurance amount — the monthly benefit you would receive at full retirement age, before any early or delayed claiming adjustment.
- Bend points
- The dollar thresholds ($1,174 and $7,078 for 2024) where the benefit formula's replacement rate steps down from 90% to 32% to 15%.
- Full retirement age (FRA)
- The age at which you receive 100% of your PIA — 67 for those born in 1960 or later.
Frequently asked questions
- How is my Social Security benefit calculated?
- Your average indexed monthly earnings (AIME) are run through a two-bend-point formula to get your primary insurance amount (PIA), then adjusted up or down based on the age you claim relative to full retirement age (67).
- How much do I lose by claiming at 62?
- Claiming at 62 with a full retirement age of 67 reduces your benefit by about 30% permanently — a $2,600.92 PIA becomes roughly $1,820.64 per month.
- How much do I gain by waiting until 70?
- Delaying past full retirement age earns 8% per year in delayed retirement credits, up to a maximum of 24% extra at age 70. There is no benefit to waiting beyond 70.
- Is this an official SSA estimate?
- No. It is a simplified educational estimate using the published bend-point formula. For an official figure, use your personalized Social Security statement at SSA.gov.