🧓 Social Security Claiming Age Calculator

How the Social Security Claiming Age Calculator Works

Your Social Security retirement benefit is based on your primary insurance amount (PIA) — the monthly benefit you would receive at your full retirement age (FRA). You can start as early as 62 or as late as 70, and the claiming age permanently changes the monthly amount.

Claiming before FRA reduces the benefit by 5/9 of 1% for each of the first 36 months and 5/12 of 1% for each additional month. Waiting past FRA adds delayed retirement credits of 2/3 of 1% per month (8% a year) until age 70. These rules are set in law and do not change each year.

A larger monthly check started later eventually overtakes the smaller check started earlier. The break-even age is the point where the total received from the later claim catches up. Living beyond it favors waiting; this calculator shows the numbers, not which choice is right for you — health, other income, a spouse's benefits and taxes all matter.

Formula

Early (k months before FRA): benefit = PIA × (1 − [min(k,36) × 5/9 + max(k−36,0) × 5/12] ÷ 100)
Delayed (d months after FRA, up to 70): benefit = PIA × (1 + d × 2/3 ÷ 100)
Break-even age between claiming ages a < b: X = (b × Bb − a × Ba) ÷ (Bb − Ba)

Amounts are in today's dollars. Cost-of-living adjustments raise all claiming options by the same percentage, so they do not move the break-even age.

How to Use It

1. Enter your birth year.
2. Enter your monthly benefit at full retirement age from your my Social Security statement.
3. Compare monthly benefits and break-even ages for each claiming age.
4. Optionally change the planning age to compare lifetime totals.

Frequently Asked Questions

What is my full retirement age?

It depends on your birth year: 66 for people born 1943–1954, rising by two months per year for 1955–1959, and 67 for anyone born in 1960 or later. If you were born on January 1, use the previous year.

How much does claiming at 62 reduce my benefit?

With a full retirement age of 67, claiming at 62 is 60 months early and reduces the benefit by 30% — you receive 70% of your full amount for life.

How much more do I get by waiting until 70?

Delayed retirement credits add 8% per year after full retirement age. With an FRA of 67, waiting until 70 gives 124% of your full benefit.

Where do I find my benefit at full retirement age?

Your personalized estimate is in your my Social Security account at ssa.gov. Use the figure shown for your full retirement age.

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Formula and content last reviewed: November 2026. All calculations run in your browser — nothing you enter is sent to or stored on our servers.