Social Security Calculator

Full Retirement Age is the reference point

Every Social Security calculation begins with Full Retirement Age, or FRA. FRA is when the Social Security Administration will pay you 100 percent of your Primary Insurance Amount, the benefit calculated from your top 35 years of indexed earnings. For anyone born in 1960 or later, FRA is 67. For earlier birth years, FRA steps down in two-month increments toward 66.

The claim-age decision is not a decision to start Social Security. It is a decision about which permanent benefit level to lock in. Once you file, the reduction or credit follows you for life, subject to annual cost-of-living adjustments.

Claiming early: how the reduction is computed

The earliest you can file for retirement benefits is age 62. The reduction is 5/9 of 1 percent per month for the first 36 months before FRA, then 5/12 of 1 percent per month for any additional months. Claiming at 62 with an FRA of 67 produces a permanent 30 percent reduction. A $3,500 benefit becomes $2,450. That gap compounds across 20 or 30 years of retirement.

Delayed retirement credits

Waiting past FRA earns delayed retirement credits of 2/3 of 1 percent per month, or 8 percent per year, up to age 70. There is no additional credit for waiting past 70. A worker whose FRA is 67 who waits until 70 collects 124 percent of their PIA, plus every COLA earned along the way.

Break-even is only one lens

The tool reports a simple break-even age, the point at which cumulative benefits from your chosen claim age equal cumulative benefits from claiming at FRA. Break-even alone is not a decision framework. Longevity, health, cash-flow needs, spousal benefits, survivor benefits, and the taxation of Social Security all shift the answer. Break-even is one input among several.

Two rules the tool does not model

The annual earnings test can reduce benefits if you claim before FRA and continue to work above the annual threshold. Withheld amounts are restored later as a recalculated benefit, but the near-term cash-flow hit is real. And provisional-income thresholds can subject up to 85 percent of your benefit to federal income tax. Both belong in a claim-age conversation with a planner reading your actual SSA statement.