When to Claim Social Security: The Math Behind 62, 67, and 70

Few retirement decisions are as permanent as when you claim Social Security, and few get made with as little thought. Most people claim at 62 because they can, or at 65 because that's when Medicare starts, or at full retirement age because it sounds official. The right answer depends on your health, your spouse, your other assets, and your tax picture. It's worth an hour of arithmetic.

The basic math

Your full retirement age is 67 if you were born in 1960 or later. At that age you get 100% of your primary insurance amount, the benefit calculated from your top 35 years of earnings.

Claim earlier and the benefit is cut permanently: 5/9 of one percent per month for the first 36 months, and 5/12 of one percent per month beyond that. Claim at 62 and you get 70% of your full benefit. Claim later and it grows 8% per year (2/3 of one percent per month) until 70, when it stops growing. Claim at 70 and you get 124%.

So a worker with a $3,000 full benefit is choosing among roughly $2,100 a month at 62, $3,000 at 67, and $3,720 at 70, before cost-of-living adjustments, which apply to all three. The 2026 adjustment was 2.8%.

The bigger check for waiting isn't a reward for patience. It's actuarially designed so that, for someone with average life expectancy, the three choices pay out about the same in total. Which means the decision comes down to how you differ from average.

The break-even, and why it undersells waiting

Claim at 70 instead of 62 and you give up eight years of checks in exchange for a benefit 77% larger for the rest of your life. The point where the larger checks catch up with the forgone ones falls around age 80 to 82 in nominal terms. Past that, waiting wins by a wider margin every year.

Life expectancy for a 67-year-old in good health is in the mid-eighties, and for a married couple the odds that at least one spouse reaches 90 are better than even. The break-even framing makes waiting sound like a gamble. For most healthy people it's closer to the reverse. Claiming early is a bet on dying young.

There's a second reason the break-even undersells delay. Social Security is inflation-adjusted, government-guaranteed income that lasts as long as you do. Nothing on the market gives you that at anything close to the same price. Every dollar of delayed benefit is a dollar of longevity insurance you don't have to buy from an insurance company.

The spouse changes everything

For a married couple, there are two lives in the analysis. When one spouse dies, the survivor keeps the larger of the two benefits and loses the smaller. So the higher earner's benefit isn't just theirs; it's what the surviving spouse will live on for what could be a decade or more.

That's why our default for couples is to have the higher earner delay to 70 and to be more flexible with the lower earner's benefit, which can start earlier to provide income while the bigger one grows. The larger benefit protects whoever lives longer, whichever spouse that turns out to be. The spousal and survivor rules have their own guide.

When claiming early is the right call

Delay is the default, not the rule. There are real cases for claiming at 62 or 65.

• Health. A serious diagnosis or a family history that makes reaching 80 unlikely tips the math toward claiming early, especially for a single person with no survivor to protect.
• No other income. If claiming early is the difference between retiring and not, or between selling investments in a downturn and not, the guaranteed check is worth more than the arithmetic says.
• A lower-earning spouse in a couple. Starting the smaller benefit early while the larger one grows is often the best of both.
• Dependents. A retiree with a minor child or a disabled adult child may be entitled to family benefits that only start once the worker claims.

The pieces that interact with claiming

The earnings test. If you claim before full retirement age and keep working, $1 of benefit is withheld for every $2 earned above $24,480 in 2026 ($65,160 with a $1-for-$3 rule in the year you reach full retirement age). The withheld amount isn't lost; it's credited back through a higher benefit later. But if you're still working full-time, claiming early accomplishes very little.

Taxation of benefits. Up to 85% of Social Security can be taxable, depending on "provisional income," which is roughly your other income plus half your benefit. Retirees pulling heavily from traditional IRAs while collecting benefits can land in an effective bracket well above the nominal one. We explain the mechanics in how Social Security is taxed.

The Roth conversion window. The years between retirement and claiming are typically the lowest-income years of your adult life. Delaying Social Security to 70 keeps that window open longer for Roth conversions and low-bracket IRA withdrawals. For a lot of our clients this interaction is worth more than the claiming decision by itself.

Medicare. Medicare starts at 65 whether or not you've claimed Social Security. Delaying benefits doesn't delay Medicare, and it doesn't move the enrollment deadlines, which carry penalties if you miss them.

How we decide with clients

We run the claiming decision inside the full retirement income projection, not on its own. The projection shows how each claiming age changes the withdrawal order, the conversion capacity, the tax bill each year, the Medicare premiums, and the survivor's income. Usually one strategy stands out once all of that is on the page. Sometimes it's a close call, and then we lean toward the guaranteed, inflation-adjusted income, because it's the one part of the plan that can't be rebuilt if something goes wrong. That's the kind of decision our retirement income planning exists to get right.

Frequently asked questions

Joseph G. Valerio, CFP®, EAFounder and Lead Advisor at Valerio Wealth Management, a fee-only, fiduciary virtual family office in Miami, Florida. One advisor, credentialed in both financial planning and federal tax. About Joseph

This article is general education, not individualized advice, and it is not tax, legal, or accounting advice. Figures reflect federal law for the year stated and can change. Valerio Wealth Management does not prepare or file tax returns. Speak with a qualified professional about your own situation before acting.