The Social Security Earnings Test Retirees Get Wrong. And It Could Cost Them Thousands.

Picture a woman who turns 67 in October 2026. That is her full retirement age (FRA), the point at which Social Security pays her unreduced benefit. She started collecting last year at 66, still works part time managing the books for a small contractor, and expects to clear about $80,000 in wages this year. She’s heard about an earnings limit that can claw back her checks, and the number stuck in her head is around $24,000. She is bracing for a cruel summer.

The rule that applies to her works differently from the one most commonly discussed.

A neighbor on a retirement forum recently posted the same worry: still working, FRA later in the year, convinced Social Security would withhold thousands of dollars in benefits. The replies kept pointing her to a higher threshold she had never heard of.

The two numbers that change the math

There are two earnings tests, and which one applies depends on whether you reach FRA during the calendar year.

For workers under FRA all year, Social Security withholds $1 in benefits for every $2 earned above $24,480 in 2026. That’s the figure most bandied about.

In the calendar year you actually hit FRA, the limit jumps to $65,160, and withholding drops to $1 for every $3 over. Even better, only wages earned in the months before your FRA month count toward that cap. From that month forward, earnings are unlimited and untested for the rest of your life.

For our recipient, only January through September wages count against the threshold. The months of October, November, and December are off the books for earnings-test purposes.

Run the numbers two ways. If she earns $60,000 January through September and another $20,000 October through December, her countable earnings sit below the cap. Nothing is withheld. If instead she front-loads bonuses and overtime so those same nine months bring in $80,000, she is $14,840 over the limit. At $1 withheld per $3 over, Social Security holds back roughly $4,947, recovered later as a slightly higher monthly benefit once she is past FRA.

The same $80,000 in annual wages produces either zero withholding or about $5,000 deferred, depending on when the paychecks land.

How this lines up with the rest of her year

Social Security is one stream of many. She likely has a 401(k) or IRA she could tap, perhaps a spousal benefit question, and the usual federal tax on combined income. Withholding under the earnings test is closer to a deferral than a penalty: held-back benefits come back as an actuarial bump after FRA, so the long-term cost is smaller than it feels.

Timing is what matters here, more than the annual total. A retiree who picks up extra hours in the spring to get ahead can unknowingly cross the pre-FRA limit, while the same hours worked in November would not count. If her employer offers flexibility on bonus timing, deferred commissions, or a quarterly schedule, shifting income into the FRA month or later is the cleanest move.

Telling Social Security in advance if her earnings estimate changes also helps. The agency adjusts withholding mid-year based on what she reports, and a quick call prevents the lump-sum clawback that surprises people the following spring.

What to actually do with this

Two things are worth pinning down before year-end.

1. Confirm with payroll how much you have earned January through September and compare it to $65,160. Under that figure, the rest of the year is free of the earnings test entirely. Over it, ask Social Security to withhold proactively rather than discovering an overpayment in April.
2. If you have any control over when income hits, push it past your FRA month. A bonus paid in October counts for income taxes but stays exempt. That asymmetry is the whole point.

The hardest mistake to undo is leaving money on the table out of fear of a rule that does not apply. Plenty of workers in their FRA year quietly cut hours in July, convinced every extra dollar costs them benefits, when in reality they have tens of thousands of dollars in headroom left. Circumstances vary, and a short conversation with a fee-only planner or directly with Social Security can confirm where you actually stand.