Working in Retirement: The Social Security Earnings Test, Taxes, and Your Benefits

Working in retirement is common and usually pays off, but if you start Social Security before your full retirement age, an earnings test can temporarily reduce your check. The key facts are simple once you separate them out: before full retirement age, Social Security withholds part of your benefit if you earn over a yearly limit; after full retirement age, there is no limit at all; and either way, your wages and possibly your benefit get taxed. The good news is that withheld benefits are not lost.

I went back to part-time tutoring in my second year of retirement, mostly because I missed the work, and I spent an embarrassing amount of time worried I was “going to lose my Social Security.” I was not, and you probably will not either. Here is how it actually works, checked by a CERTIFIED FINANCIAL PLANNER. For the bigger picture, start with our guide to retirement planning.

The earnings test before full retirement age

If you claim Social Security before your full retirement age and keep earning, the earnings test withholds $1 of benefits for every $2 you earn above $24,480 in 2026. Full retirement age is 67 for anyone born in 1960 or later, so this matters most for people who claim early, as early as 62.

A few things to keep straight:

• Only earned income counts: wages from a job and net earnings from self-employment. Investment income, pensions, rental income, and withdrawals from a 401(k) or IRA do not count toward the test.
• A separate, much higher limit applies in the calendar year you reach full retirement age, with benefits reduced by a smaller amount on earnings above that limit.
• Starting the month you actually reach full retirement age, the test stops entirely.

So someone who claimed at 62 and earns $40,480 from part-time work in 2026 is $16,000 over the limit, and Social Security would withhold about $8,000 of benefits that year. That sounds painful, which is exactly why the next section matters.

Why withheld benefits are not lost

Benefits held back by the earnings test are not gone; Social Security pays them back through a higher check once you reach full retirement age. This is the single most misunderstood rule in the whole topic.

When you hit full retirement age, the Social Security Administration recalculates your benefit. It effectively treats the months it withheld payments as if you had claimed a little later, and it bumps up your monthly amount to make up for them over time. Across a typical retirement, most people recover what was withheld.

In my own case, I decided the worry was not worth it. I had already chosen when to claim Social Security, and once I understood that the earnings test was a delay and not a penalty, going back to a bit of paid work became an easy yes. If you have not made the claiming decision yet, working a few more years can let you delay your claim, which permanently grows your benefit by about 8% a year between full retirement age and 70.

After full retirement age: no earnings test at all

Once you reach full retirement age, you can earn any amount and keep every dollar of your Social Security benefit. There is no earnings test, no withholding, and no limit. You could earn a six-figure salary and your Social Security check would be unaffected by the earnings rules.

This is a strong argument, for people who are able and willing, to wait until full retirement age (or later) before combining work and Social Security. It removes the earnings test entirely and lets you delay your claim for a larger benefit. We work through the trade-offs in when to claim Social Security and the gradual approach in phased retirement.

How work in retirement is taxed

Your wages in retirement are taxed as ordinary income, and earning more can also make more of your Social Security benefit taxable, up to 85%. There are two layers here.

First, the work itself. Wages are taxed like any other job: federal income tax, and Social Security and Medicare payroll taxes still come out of earned income even after you start collecting benefits.

Second, the knock-on effect. Whether your Social Security is taxed depends on your combined income. As your total income rises, up to 85% of your benefit can become subject to federal income tax. Adding a paycheck on top of your benefit often pushes more of that benefit into the taxable range, and it can also raise your Medicare premiums through income-related surcharges based on income from two years prior. We cover all of this in taxes in retirement.

None of this means working is a bad idea. It just means the extra income is worth a little less after tax than the gross number suggests, and that is worth knowing before you commit.

What part-time work means for your retirement accounts

As long as you have earned income, working part-time lets you keep contributing to a 401(k) or IRA, but it does not change when Medicare starts. A job in retirement can do double duty: income now, plus more savings for later.

• Retirement contributions: with earned income you can still contribute. In 2026 the limits are up to $24,500 for a 401(k) and $7,500 for an IRA, with catch-up contributions once you turn 50. There is no upper age limit on contributing while you are still working. See retirement contribution limits.
• Medicare: turning 65 still makes you eligible for Medicare. If you have qualifying coverage through a current employer, you may be able to delay Part B without penalty, but the rules are strict, so confirm with Medicare first.
• Required distributions: working does not exempt you from required minimum distributions on your old accounts once you reach 73, though some plans let you delay RMDs from your current employer’s 401(k) while you are still working there.

Plenty of people use exactly this combination, and it is a core part of working in retirement as a strategy. For the full set of options, see accessing your retirement savings.

A note before you decide

This is general information, not personalized advice. The earnings test, taxation of benefits, and Medicare timing all depend on your own numbers, and the figures here are for 2026 and change every year. Check your own benefit estimate for free at SSA.gov, and for a decision as consequential as when to claim and how much to work, a fiduciary advisor and a tax professional can model your specific situation. See choosing a financial advisor for how to find one you can trust.