How Long Will My Money Last With Social Security?

Social Security changes this question completely. The typical retired worker receives about $1,976 a month, which means savings only have to cover what is left over — and that gap is usually far smaller than people assume.

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Savings only cover the gap

Forgetting this is the mistake that makes people think they cannot afford to retire. If you spend $4,500 a month and Social Security pays $1,976, your savings need to produce about $2,524, not $4,500. The calculator above is set up this way: your full spending as the withdrawal, and the benefit in the Social Security box. On a $500,000 balance those two figures give wildly different answers.

Monthly spendingSocial SecuritySavings must coverHow long $500,000 lasts
$3,000$1,976$1,024∞
$3,500$1,976$1,52444.9 years
$4,000$1,976$2,02428.6 years
$4,500$1,976$2,52421.2 years
$5,000$1,976$3,02416.8 years
$6,000$1,976$4,02412.0 years

5% return, 2.5% inflation, no tax. Enter your own balance above.

Why the gap shrinks the risk so much

Social Security is inflation-adjusted and lasts as long as you do. That makes it the sturdiest part of a retirement plan, and it means the portion of your spending it covers carries no longevity risk at all. A retiree whose guaranteed income covers most of their essential costs can survive a bad market by trimming discretionary spending; a retiree funding everything from a portfolio cannot.

The two-stage problem if you retire before claiming

Most people do not retire and claim on the same day. If you stop working at 62 and claim at 67, savings carry the full load for five years and then only the gap after that. The calculator on this page handles both stages in one run. Enter your age today and the age Social Security starts, and it draws your full spending from savings until then and only the gap afterwards.

The bridge calculator walks through the same two stages when you delay to 70, including why the front-loaded spending is usually worth it.

Getting your own benefit number

Do not use the average. Create an account at ssa.gov and read your statement — it shows your estimated benefit at 62, at full retirement age and at 70, based on your actual earnings record. The spread between those three numbers is typically larger than any investment decision you will make in retirement.

Taxes on the combination

Once savings withdrawals and Social Security are added together, up to 85% of the benefit can become taxable income. That is why the tax field on this calculator matters more for retirees with Social Security than for those without. See how Social Security is taxed for the thresholds.

Frequently asked questions

Should I include Social Security in a retirement calculator?

Enter it in the Social Security field under the calculator inputs, with the age it starts, and enter your full monthly spending as the withdrawal. From that age on, the calculator takes Social Security off each month's spending and draws only the rest from savings. Never add it to your assets.

What is the average Social Security benefit?

About $1,976 a month for a retired worker, with a maximum near $4,018 for someone claiming at full retirement age after a full career at the taxable maximum. Your own figure is on your ssa.gov statement.

Does Social Security keep up with inflation?

It is adjusted annually by the cost-of-living adjustment, which is based on a consumer price index. It is the only major retirement income source that adjusts automatically, which is why it is worth treating as the foundation rather than a supplement.

How long will $500,000 last with Social Security?

If you spend $4,000 a month and Social Security covers $1,976, savings need to produce $2,024 a month — and $500,000 lasts about 28.6 years at 5% returns. Without Social Security, covering the full $4,000 would exhaust it in about 12.1 years.

More on Social Security

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SavingsLast calculators are educational estimates. They assume a constant average return and steady inflation; real markets are volatile and sequence-of-returns risk can shorten how long money lasts. Nothing here is financial, investment, tax, or legal advice. Consult a qualified professional before making decisions.