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Social Security Calculator
Estimate your Social Security retirement benefit based on your earnings history and the age you plan to start claiming.
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Benefit at FRA (PIA)
Monthly Benefit at Claiming Age
Annual Benefit
Claiming Age Adjustment
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How Social Security Benefits Are Calculated
Your Social Security benefit starts with your Primary Insurance Amount (PIA) — the monthly payment you receive if you claim at your Full Retirement Age (FRA) of 67. The SSA calculates your PIA using a progressive three-bracket formula applied to your Average Indexed Monthly Earnings (AIME). The first $1,174 of AIME is credited at 90%, the amount between $1,174 and $7,078 at 32%, and anything above $7,078 at 15%. This structure ensures lower earners replace a higher proportion of their pre-retirement income.
Your AIME is based on your highest 35 years of inflation-adjusted earnings divided by 420. If you worked fewer than 35 years, the missing years count as zero, reducing your AIME and therefore your benefit. Working additional years — especially if those years replace low-earning years in your record — can meaningfully boost your benefit.
When Should You Claim Social Security?
Claiming before age 67 permanently reduces your monthly benefit: up to 30% less if you claim at 62. Claiming after 67 earns Delayed Retirement Credits of 8% per year, maxing out at a 24% increase at age 70. Neither choice is universally better — it depends on your health, other retirement income, and how long you expect to collect benefits.
As a rough rule: if you live to average life expectancy (around 84 for a 65-year-old today), the total lifetime income is similar regardless of when you claim. If you expect to live longer than average, delaying often wins. If you have health concerns or need the income sooner, claiming earlier can make more sense. Married couples have additional strategies available, including spousal benefits and coordinating claiming ages to maximize household income.
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Frequently Asked Questions
What is the Primary Insurance Amount (PIA)?
The PIA is your monthly benefit if you claim at your Full Retirement Age (FRA). It's calculated from your AIME using a progressive formula with three brackets: 90% of the first $1,174, 32% of earnings between $1,174 and $7,078, and 15% of earnings above $7,078. The FRA for people born in 1960 or later is age 67.
What is AIME?
AIME (Average Indexed Monthly Earnings) is the foundation of your Social Security benefit calculation. It's based on your highest 35 years of inflation-adjusted earnings divided by 420 months (35 years × 12 months). Years with no earnings count as zero, so working a full 35 years maximizes your AIME. The Social Security Administration adjusts past earnings for wage inflation to make them comparable in today's dollars.
What is the best age to claim Social Security?
The optimal claiming age depends on your health, other income sources, and life expectancy. Claiming at 62 gives you more total checks but each one is permanently smaller (up to 30% less than FRA). Claiming at 70 gives you the largest possible monthly check (24% more than FRA) but fewer total payments. If you expect to live well into your 80s, delaying often results in more lifetime income. If you have health concerns or immediate financial needs, claiming earlier may make more sense.
How does early claiming reduce benefits?
Benefits are permanently reduced when you claim before your Full Retirement Age (67 for those born 1960+). The reduction is 5/9 of 1% per month for the first 36 months before FRA, and 5/12 of 1% for each additional month beyond that. Claiming at 62 (60 months early) results in a 30% permanent reduction: 36 months × 5/9% = 20%, plus 24 months × 5/12% = 10%.
How does delayed claiming increase benefits?
Delaying Social Security past your Full Retirement Age earns Delayed Retirement Credits of 8% per year (2/3 of 1% per month), up to age 70. Waiting from 67 to 70 adds 3 years × 8% = 24% to your monthly benefit permanently. After age 70, there is no additional credit for waiting, so 70 is the maximum benefit age.
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