Start Social Security any time from 62 to 70. Enter two numbers and see the age where waiting starts to pay off. How it works is explained below.
Deciding when to claim Social Security is one of the largest and most permanent money decisions you will ever make. The difference between claiming at 62 and waiting until 70 can be worth six figures over a lifetime, and once you start, the choice is very hard to undo. The catch is that the "right" answer depends on how long you live, which nobody knows in advance. A break-even comparison turns that uncertainty into a single, usable number.
Your benefit is anchored to your full retirement age, which is 67 for anyone born in 1960 or later. Claim before then and Social Security permanently reduces your monthly benefit. Claim after, up to age 70, and it permanently increases it. The reductions and increases follow fixed formulas from the Social Security Administration: your benefit is cut by 5/9 of 1% for each of the first 36 months you claim early and 5/12 of 1% for each additional month, and it grows by 8% per year of delayed retirement credits after full retirement age.
For a full retirement age of 67, that means claiming at 62 pays roughly 70% of your full benefit, while waiting until 70 pays about 124%. Same lifetime earnings record, a check that differs by more than 50% depending only on when you start.
Claiming early gives you a head start: years of checks the person who waits does not receive. The person who waits eventually collects a larger monthly amount and slowly closes that gap. The break-even age is the point where their cumulative total catches up to yours. Before that age, claiming earlier has paid more in total dollars. After it, waiting pulls ahead and keeps widening the lead for the rest of your life.
For a full retirement age of 67, claiming at 67 instead of 62 typically breaks even somewhere around age 78 to 79. Waiting from 67 to 70 usually breaks even around 82 to 83. Your exact numbers depend on your benefit amount, which is why the calculator computes them from your figures rather than quoting an average.
Instead of asking you to guess your life expectancy, the calculator shows the total benefits you would collect under each strategy if you lived to 70, 75, 80, 85, 90, or 95. Scan down to the age that feels realistic for you and the winning strategy for that row is highlighted. If longevity runs in your family, look at the later rows. If your health or family history points the other way, the earlier rows tell the story. You stay in control of the one assumption that actually drives the answer.
To keep the comparison clean, it uses today's dollars and does not layer in annual cost-of-living adjustments, income taxes on benefits, spousal or survivor benefits, or the return you might earn by investing early checks. Cost-of-living adjustments apply to every claiming age, so they tend to push break-even ages a little later but rarely change which strategy wins for a given lifespan. For most people the plain comparison shown here is the decision-maker; the finer details refine it at the edges. Always confirm your own numbers against your Social Security statement and consider talking to a financial or tax professional before you file.