$182,370. That is how much extra lifetime spending power the National Bureau of Economic Research says a retiree leaves on the table by claiming Social Security before age 70. It is not a rounding error or a best-case scenario. It is the median figure, meaning half of early claimants lose even more.
The share of Americans who actually wait until 70 to file? Just 10.2%. That means nearly nine in ten retirees accept a permanently reduced benefit, often without fully grasping the six-figure cost of that choice.
The math behind the decision is surprisingly clear. What makes it so widely misunderstood is a more interesting question.
Six figures on the table
Social Security benefits first become available at 62, but filing before your full retirement age (FRA) triggers permanent early-filing penalties that shrink every check you ever receive. For anyone born in 1960 or later, FRA is 67. Waiting until 67 avoids those penalties. But the real prize comes from waiting even longer: the Social Security Administration adds delayed retirement credits worth 8% per year for every year you hold off past FRA, up to age 70. For someone with an FRA of 67, that translates to a 24% permanent boost in monthly benefits by filing at 70 instead.
The dollar difference is striking. A standard $2,000-per-month benefit at FRA would shrink to $1,400 if claimed at 62, but grow to $2,480 if delayed until 70. That $1,080 monthly gap compounds over a long retirement into a life-changing sum. NBER researchers found the median household in the 45-to-62 age range loses $182,370 in present-value lifetime discretionary spending by not waiting. For the top quarter of households in that group, the gain from waiting exceeds $289,893.
Why most people still get it wrong
Social Security was originally designed around life expectancies that are far shorter than what Americans experience today. Early-filing penalties and delayed retirement credits were calibrated to keep lifetime payouts roughly equal across different claiming ages, at least for the population alive when those rules were written. Early claimers would get smaller checks over more years; late claimers would get larger checks over fewer years. The math was meant to wash out.
The problem is that Americans now live considerably longer than the system’s original architects assumed. Because the benefit schedule was not fully adjusted for rising longevity, the math no longer washes out the same way. NBER’s research found that more than 90% of workers aged 45 to 62 end up with greater lifetime Social Security income by waiting until 70. The higher monthly check simply runs long enough to lap the smaller checks that an earlier claimant spent years collecting.
That 10.4% average increase in lifetime spending that the NBER projects from optimal claiming sounds modest in percentage terms. In real dollars at the median, it is $182,370 that retirees who file early never see. And the burden falls hardest on those who can least afford it: among the poorest fifth of Americans in the 45-to-62 cohort, the NBER found the median lifetime spending gain from waiting is 15.9%, with one in four gaining more than 27.4%.
When early claiming can still make sense
Claiming before 70 is not universally the wrong move. The key variable is longevity. For someone claiming at 70 instead of at FRA (67), the break-even point, the age at which the larger delayed checks finally surpass the cumulative value of having claimed earlier, falls around age 82 to 83. Retirees with serious health conditions or a family history of shorter lifespans may rationally prefer smaller checks that start sooner. Similarly, a retiree with no other income source and immediate financial need may have no practical choice but to file early.
For married couples, the calculus is more complex. The higher earner’s claiming decision directly affects the survivor benefit available to a spouse after one partner dies. Delaying the higher earner’s claim until 70 can provide meaningful protection for whoever outlives the other, since the surviving spouse steps into the deceased partner’s benefit if it is larger.
A new reason to maximize what you can
There is a broader development that makes the claiming-age decision even more consequential in 2026. According to the Social Security Board of Trustees’ 2026 annual report, the OASI trust fund, which pays retirement and survivor benefits, is now projected to be depleted in the fourth quarter of 2032. At that point, incoming payroll tax revenue would cover only 78% of scheduled retirement benefits, absent congressional action. That is not a prediction that Social Security disappears, but it does mean future retirees could face reduced checks if lawmakers do not act. Maximizing the benefit you lock in now, by delaying until 70 and securing the highest possible base amount, provides the most cushion against any future adjustment.
The arithmetic remains straightforward. The typical retiree will live past the break-even age, making delay the dominant strategy for lifetime income. What is less straightforward is finding the savings or continued income to live on while waiting. Anyone considering a delayed claim should account for how they will cover expenses from their target retirement date through age 70, whether through continued work, retirement account withdrawals, or other sources. That planning gap is the practical hurdle, not the math.
Editor’s note: This article was updated to include the monthly benefit example showing a $2,000 FRA benefit grows to $2,480 at age 70 while shrinking to $1,400 at 62, and to add context from the Social Security Board of Trustees’ 2026 annual report, which now projects OASI trust fund depletion in the fourth quarter of 2032 with 78% of retirement benefits payable at that time.
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