Social Security timing calculator
Claim at 62, at full retirement age, or at 70, and see where the lines actually cross.
- Claim at 62
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- Claim at full retirement age
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- Claim at 70
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- Breakeven, 62 against 70
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What this is actually calculating.
Claiming early permanently reduces the monthly benefit. Waiting past full retirement age permanently increases it, by roughly eight percent a year until seventy. The trade is a smaller cheque for longer against a larger cheque for less time.
The breakeven age is where the totals cross. It usually lands in the late seventies or early eighties, which means the decision is really a question about longevity, other income, and whether a surviving spouse will depend on the larger benefit.
The parts that decide the answer.
A January 1 birthday counts as the year before
Social Security treats you as having reached an age on the day before your birthday, so someone born on 1 January falls into the previous year's band for full retirement age. This asks for a year, which cannot express that. If you were born on 1 January, enter the year before.
The breakeven ignores the time value of money
It adds up the payments and finds where the totals cross, without discounting. A dollar at 62 is worth more than a dollar at 82, so the true crossover sits later than the one shown here: at a two percent real discount rate the 62 against 70 comparison moves from about 80 to about 83. Read the age here as the earliest version of the answer, not the whole of it.
Breakeven is not the whole decision
If a spouse will inherit the higher benefit, delaying protects them for the rest of their life. That value does not show up in a breakeven chart.
Working while claiming early has a cost
Before full retirement age, earnings above an annual threshold temporarily withhold part of the benefit. It is not lost permanently, but it changes the near-term maths.
Benefits can be taxable
Depending on your other income, up to eighty five percent of the benefit is subject to federal income tax. That interacts with withdrawal ordering more than most people realise.
Before you rely on it.
Is this my actual benefit?
No. Enter the figure from your Social Security statement at full retirement age. This calculator applies the claiming adjustments to it.
Does it handle spousal or survivor benefits?
No. Those need a real conversation, because the optimal answer for a couple often differs from the optimal answer for either person alone.
Does it adjust for cost of living increases?
No. COLAs apply to all three claiming ages, so they largely cancel out in the comparison.
About this calculator.
An illustration, not advice
This is an educational illustration, not investment, tax, or legal advice, and not a recommendation or projection of any particular result. It uses only the assumptions you enter.
Real returns are not this smooth
Where a return is involved it is treated as constant, which no real portfolio is. Actual results will differ, and a sequence of poor early returns can change an outcome substantially even when the average holds.
Nothing you type leaves your browser
Every calculation runs on your own machine. Nothing you enter is transmitted or stored, and none of it reaches me unless you ask for a PDF and give me your details.
Talk to your CPA and attorney before relying on any of it.See all twelve calculators
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A branded summary of the figures you entered, what they mean, and the assumptions behind them.
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