Social Security Calculator
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Benefit Details
Monthly Benefit at Claiming Age
Enter your earnings and claiming details to estimate your benefit.
This calculator provides an educational estimate only and is not financial advice. Contact the Social Security Administration for your official benefit estimate.
Understanding Your Social Security Benefit
Social Security replaces a progressively larger share of your lower earnings than your higher earnings, and the age at which you start claiming permanently changes your monthly check. This calculator applies the same bend-point formula the Social Security Administration uses to convert your average earnings into a Primary Insurance Amount (PIA), then adjusts it for your chosen claiming age.
The Bend-Point Formula
Your PIA is calculated in bands: 90% of your first $1,174 of AIME, plus 32% of AIME between $1,174 and $7,078, plus 15% of AIME above that. This progressive structure replaces a larger share of lower lifetime earnings.
Full Retirement Age
Your Full Retirement Age (FRA) is the age at which you receive 100% of your PIA -- no reduction, no bonus. FRA is 66 for those born 1943-1954, rising gradually to 67 for anyone born 1960 or later.
Claiming Before FRA
Claiming early permanently reduces your benefit: 5/9 of 1% per month for the first 36 months early, plus 5/12 of 1% per month beyond that, down to the earliest claiming age of 62.
Delaying Past FRA
Delaying past FRA earns delayed retirement credits: 2/3 of 1% per month of delay (8% per year), up to age 70 -- the maximum claiming age, since credits stop accruing after that.
Worked Example
Suppose your AIME is $5,000 and your FRA is 67:
- Full PIA at FRA: 90% × $1,174 + 32% × ($5,000 − $1,174) = $1,056.60 + $1,224.32 = $2,280.92/month.
- Claiming at 65 (24 months early): reduced by 24 × 5/9 of 1% = 13.33%, to $1,976.80/month -- a $304.12 reduction vs. FRA.
- Claiming at 62 (60 months early): reduced by 30% (the maximum early reduction), to $1,596.64/month.
- Claiming at 70 (36 months late): increased by 24% (delayed retirement credits), to $2,828.34/month.
Same PIA, Different Claiming Ages
- Age 62: $1,596.64/mo
- Age 67 (FRA): $2,280.92/mo
- Age 70: $2,828.34/mo
The Claiming-Age Trade-off
There's no universally "correct" claiming age -- it's a trade-off between a smaller check for more years or a larger check for fewer years, and the right answer depends on your health, other income, and how long you expect to live. What this calculator makes clear is the magnitude: the gap between claiming at 62 and 70 on the same earnings record can be nearly 77% of the smaller amount, which is why the claiming-age decision is one of the most consequential choices in retirement planning.
Key Takeaways
- Progressive by Design: The bend-point formula replaces a larger share of lower earnings, so your effective replacement rate falls as AIME rises.
- Claiming Age Is Permanent: Once you start benefits, the early-reduction or delayed-credit adjustment generally locks in for the rest of your claim.
- 70 Is the Ceiling: Delayed retirement credits stop accruing at age 70 -- there's no benefit to waiting any longer.
- This Is a Simplification: Real AIME requires 35 years of wage-indexed earnings history -- treat this as a directional estimate, not an official benefit calculation.