When to Claim Social Security: The Real Math Behind 62 vs. 70

The decision in one sentence

You can start Social Security as early as 62 or as late as 70, and for every year you wait past your full retirement age, your monthly check grows by about 8 percent — for the rest of your life, adjusted for inflation. That is the whole decision in one sentence. Everything else is figuring out whether you can afford to wait and whether you should.

What "full retirement age" actually means

Your full retirement age, or FRA, is the age at which you receive 100 percent of your earned benefit. For most people retiring now it is 67. Claim before FRA and your benefit is permanently reduced — at 62 it can be roughly 30 percent smaller than at FRA. Claim after FRA, up to age 70, and you earn delayed retirement credits of about 8 percent a year. There is no benefit to waiting past 70, so 70 is the natural ceiling.

Put together, the spread is large: a benefit claimed at 70 can be roughly 77 percent higher than the same person's benefit claimed at 62.

The breakeven math, without the jargon

People love to ask about the "breakeven age" — the age at which the larger checks from waiting overtake the head start you'd have had by claiming early. For most people that point falls somewhere in the early-to-mid 80s. If you expect to live past it, waiting wins on total dollars. If you don't, claiming earlier wins.

But breakeven is the wrong lens for most households, for two reasons.

First, Social Security is not really an investment to be optimized; it is longevity insurance. Its job is to keep paying you if you live a long time, which is precisely the scenario your savings are least equipped to handle. The larger check matters most in exactly the years you'd most fear running short.

Second, the breakeven calculation usually ignores the survivor benefit, which is often the most important number in the whole exercise.

The survivor benefit changes everything

When one spouse dies, the survivor generally keeps the larger of the two benefits, not both. That means the higher earner's claiming decision sets a floor under the surviving spouse's income for the rest of their life.

If the higher earner waits until 70, they are not only buying themselves a bigger check — they are buying their spouse a bigger check for however many years they outlive them. For couples, this single fact often tips the decision toward having the higher earner delay, even if the lower earner claims earlier to provide income in the meantime.

When claiming earlier is the right call

Waiting is not a moral virtue. Claim earlier when:

• You need the income now and have no comfortable way to bridge the gap.
• Your health or family history genuinely points to a shorter horizon.
• You are the lower earner in a couple and claiming early helps fund the household while the higher earner delays.
• Continuing to work would subject early benefits to the earnings test in a way that makes claiming pointless until you stop.

None of these are failures. They are the situations the early-claiming option exists to serve.

The bridge problem

The most common obstacle to waiting is simply cash flow: how do you pay the bills between retiring and claiming? This is where a little planning pays off. Some households bridge the gap by spending down a portion of savings on purpose in those years, treating it as the price of buying a larger lifetime benefit. Done deliberately, that is a reasonable trade — you are converting a chunk of savings into a guaranteed, inflation-protected raise.

The mistake is bridging by accident: claiming early only because no one mapped out the in-between years.

A simple way to decide

1. Are you the higher earner in a couple, in reasonable health, with a way to bridge a few years? Lean strongly toward waiting.
2. Do you need the money now, or does your health argue for sooner? Claiming earlier is sensible and nothing to apologize for.
3. Are you a couple? Look at both records together — the answer for each spouse may be different.

The bottom line

For a healthy person who can afford to wait, delaying Social Security toward 70 is close to a free lunch in a field that rarely offers one: a guaranteed, inflation-protected raise that also protects a surviving spouse. Claim earlier when your cash flow, your health, or a careful look at both spouses' benefits says so. Either way, make it a decision you arrive at on purpose — not the one that happens because 62 came first.