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Social Security Benefits Estimator

Updated 2026

A Social Security calculator helps you make one of the most important retirement decisions: when to claim your benefits. The difference between claiming at 62 versus 70 can mean hundreds of thousands of dollars over your lifetime.

How to Use This Calculator

Enter your estimated benefit at Full Retirement Age (find this on your Social Security statement at ssa.gov), your current age, your Full Retirement Age, and the age you plan to claim. The calculator shows your estimated monthly benefit and how it compares to your FRA benefit.

How It's Calculated

This is a simplified educational estimator based on Social Security's adjustment factors:

Benefit_at_claim_age = FRA_Benefit × adjustment_factor

Claiming before FRA reduces your benefit by about 5/9 of 1% per month for the first 36 months early, plus 5/12 of 1% per month beyond that. Claiming after FRA increases your benefit by about 8% per year through delayed retirement credits up to age 70.

Frequently Asked Questions

The optimal age to claim Social Security depends on your health, financial needs, life expectancy, and other retirement income. Claiming at 62 gives you the earliest but smallest benefit (about 30% less than Full Retirement Age). Delaying to age 70 maximizes your benefit (about 32% more than FRA). If you expect to live past 80, delaying is usually mathematically better. If you need the income or have health concerns, claiming earlier may be the right choice.
Social Security calculates your benefit using your 35 highest-earning years, adjusted for wage inflation. These are averaged to find your Average Indexed Monthly Earnings (AIME). Your AIME is then applied to a progressive formula with three "bend points" to determine your Primary Insurance Amount (PIA) at Full Retirement Age. This PIA is then adjusted based on whether you claim early (reduction) or late (delayed retirement credits). The exact calculation is complex — this tool provides a simplified estimate.
If you claim Social Security before your Full Retirement Age and continue working, your benefits may be temporarily reduced through the Retirement Earnings Test. In 2026, if you're under FRA for the full year, $1 in benefits is withheld for every $2 earned above $22,320. In the year you reach FRA, $1 is withheld for every $3 earned above $59,160. Once you reach FRA, there is no reduction regardless of how much you earn, and any withheld benefits are recalculated into higher payments.
Your Full Retirement Age (FRA) depends on your birth year. For those born 1960 or later, FRA is 67. If you were born 1943–1954, it's 66. For those born between 1955 and 1959, FRA gradually increases from 66 and 2 months to 66 and 10 months. Claiming before FRA permanently reduces your benefit; claiming after FRA increases it through delayed retirement credits up to age 70.

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