Millions of Americans collect Social Security while still earning a paycheck, and many get a nasty surprise the following year: a letter saying they owe money back.
The culprit is the retirement earnings test, a decades-old rule that few people understand until it hits their bank account.
If you claim Social Security before your full retirement age and keep working, the Social Security Administration withholds part of your benefit once your earnings cross a set threshold.
Earn more, and the agency takes back $1 for every $2 you go over.
Say you're 63 and earning $40,000 a year.
Divide by two, and Social Security withholds $8,300 — which could wipe out most or all of your monthly check depending on your benefit size.
There's a second, higher threshold in the year you actually reach full retirement age.
For 2025, that figure is $62,160, and the penalty is gentler: $1 withheld for every $3 earned above it.
Once you hit full retirement age, the test disappears entirely.
You can earn any amount with no reduction.
That detail matters more than most people realize.
Full retirement age is 66 and a few months for anyone born between 1955 and 1959, and 67 for those born in 1960 or later.
Claim at 62 for the biggest check now, and you're exposed to the earnings test for years.
What trips people up is how the withholding gets applied.
Social Security doesn't reduce your check gradually month by month.
If you're still working midyear and your earnings project over the limit, the agency may suspend your entire benefit for several months to recover the overpayment upfront — then resume it.
Retirees who budgeted around a steady deposit suddenly see nothing arrive.
A common myth says the money is gone forever.
Once you reach full retirement age, Social Security recalculates your benefit upward to account for months when payments were withheld.
You eventually recover much of it through a higher monthly check — but that can take years, and it does nothing for your cash flow today.
The practical move for many near-retirees is simple: if you're still pulling a solid salary, run the numbers before filing.
Sometimes waiting even one year changes the math dramatically.
Other times, reducing hours to stay under the threshold preserves more of your benefit than working extra shifts ever would.
Self-employment income counts too, which catches freelancers and gig workers off guard.
So do bonuses, commissions, and most wages — though investment income, pensions, and IRA withdrawals generally don't count toward the limit.
That distinction is where a lot of confusion lives.
Our take: the earnings test isn't a punishment, but it functions like one for people who file early without doing the math.
If you're still earning real money, treat claiming before full retirement age as a deliberate trade-off, not a default.
Final Thoughts
A short conversation with a financial planner or a close read of your SSA statement can save you thousands — and a year of watching your deposits vanish.