Retirees have long debated when to claim Social Security. Some take it as soon as they're eligible. Others wait as long as they can. Most people end up choosing somewhere in between, guided by gut instinct or whatever feels safest at the time.
The problem is that instinct doesn't always match the math. When you look at the data, delaying often leads to higher lifetime income and more reliable monthly checks, which can support a stress-free retirement.
Here's what the numbers show, and which claiming age works best for many people in 2026.
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The gap between when retirees actually claim versus when the math says they should
Research shows a big gap between when retirees claim Social Security and when the numbers say they should.
A 2019 study by United Income simulated thousands of retiree scenarios and compared optimal claiming ages with actual behavior. On average, retirees left about $110,000 in lifetime Social Security income on the table by claiming too early.
Only about 4% to 5% waited until age 70, even though the study found that more than half of retirees would have received the most total income by waiting that long.
Those choices carry into later years. The study also found that choosing the right claiming age could boost household spending power by about 17% on average, and for many retirees, income in their 70s and 80s would have been around 25% higher.
Multiple studies confirm that waiting to claim Social Security benefits leads to higher lifetime income
Studies from the Boston College Center for Retirement Research (CRR) note that the roughly 8% yearly increase for delaying often makes age 70 the better choice, especially for higher earners.
A separate 2022 study from the National Bureau of Economic Research (NBER) looked at household data and came to a similar result. It found that most workers ages 45 to 62 would be better off waiting past 65, and that more than 90% would gain by waiting until 70.
The median retiree in that group gave up about $182,000 in lifetime spending by claiming early, and one in ten households lost more than $26,000 a year in retirement spending.
Taken together, the evidence points in the same direction for retirees with typical health and finances. Waiting often produces more total income, sometimes by tens of thousands of dollars over retirement.
Why delaying past full retirement age increases checks for life
Once you reach full retirement age (FRA), the Social Security Administration (SSA) adds delayed retirement credits for each month you wait, up to age 70.
The increase equals about 8% per year, which can compound into a much larger monthly check. For someone with a $2,000 benefit at full retirement age, delaying to 70 raises that amount to roughly $2,480, and that higher payment lasts for life.
In contrast, filing before full retirement age permanently reduces your benefit. For many people, claiming at 62 means taking about a 30% cut compared with their full retirement age amount.
If your benefit would have been $1,000 at 67, claiming at 62 locks it in at about $700, and every future cost-of-living increase builds on that lower base.
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When delaying starts to pay off
Researchers often frame this tradeoff using a break-even age, which is the point when the larger checks from waiting catch up to the extra payments from claiming early. Because the delayed credits are sizable, that break-even point often falls late in retirement.
For example, an AARP analysis shows that delaying from 62 to 67 may not pay off until around age 78 or 79. Waiting until 70 may not break even until about age 80.
That matters because many retirees live well beyond that range. When longevity stretches into the 80s or 90s, the higher monthly benefit from waiting usually produces more total income over a lifetime. Shorter lifespans can change the math, but under average assumptions, delaying tends to come out ahead.
Situations where claiming before 70 may make more sense
The data often favors waiting, but that doesn't mean age 70 is the right choice for every retiree. The same studies that show the upside of delaying also point out how much personal circumstances matter.
A few factors can push the decision earlier:
- If you have serious health issues or a shorter expected lifespan, you may not reach the break-even point where delaying pays off.
- If you need income in your 60s to cover living expenses or reduce debt, an earlier check can be more practical.
- If you keep working before full retirement age, the earnings test can temporarily reduce your benefit.
Waiting tends to make more sense in the opposite situations. Retirees who are healthy, have savings to draw on, or earn more over their careers often benefit more from delaying, since the delayed credits apply to a larger base benefit.
Bottom line
Age 70 often comes out ahead on paper, but it is not a default answer. The age you choose sets your Social Security income for life, and even small timing differences can compound into large dollar gaps over time.
Before you file, look hard at how long you expect to work, live, and rely on these checks. That perspective can help you make the right moves, even if they feel less comfortable today.
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