She Took a $22,000 Part-Time Job at 67. It Made 85% of Her Social Security Taxable.

She turned 67, started drawing Social Security, and figured the hard part was over. A part-time job came up at about $22,000 a year, three days a week, mostly to stay busy and cover rising grocery bills. She had heard that once you reach full retirement age (FRA), you can earn as much as you want without losing benefits. That part is true. What surprised her at tax time: a chunk of her Social Security check, which had been tax-free the year before, was now showing up as taxable income.

This catches careful retirees off guard. Online retirement forums overflow with the same story: someone past FRA picks up a modest job, expects no penalty, and discovers their tax bill jumped by more than the job seemed worth. Consumer prices rose 4.2% annually in May 2026, the highest rate in three years, according to the Bureau of Labor Statistics. That squeeze on household budgets is pushing more retirees toward part-time work even as their savings cushions have thinned. With wages from that work landing on top of provisional income calculations frozen since 1984, more retirees are bumping into this rule than at any point in recent memory.

Two Different Rules Retirees Confuse

The first is the earnings test, which only applies before FRA. Anyone who claims early and keeps working has Social Security temporarily hold back some of the benefit. Once full retirement age arrives, which is 67 for anyone born in 1960 or later, the earnings test disappears. A retiree can earn a million dollars and the monthly check stays untouched.

The second rule is taxation of benefits, and it never goes away. It applies at any age, and it is what tripped her up. The IRS uses a measure called provisional income, defined in IRS Publication 915 as the adjusted gross income (AGI), plus any tax-exempt interest, plus half of the Social Security benefits. For a single filer, provisional income above $25,000 makes up to 50% of benefits taxable; above $34,000, up to 85% becomes taxable. For married couples filing jointly, the thresholds are $32,000 and $44,000.

Congress set those thresholds in 1984 and never indexed them for inflation, so they still apply today. The One, Big, Beautiful Bill signed in 2025 added a temporary senior deduction, but it did not touch these provisional income thresholds. As Suze Orman put it on her July 2025 podcast, “even if you’re just making a little bit from a pension, a CD or part time work,” crossing those lines can pull up to 85% of someone’s Social Security into taxable territory.

One important nuance: the 85% figure is the share of the benefit that becomes taxable, not the tax rate. If her benefit is $24,000 a year, up to about $20,400 of it gets added to taxable income and taxed at her ordinary rate, which for most retirees in this band lands in the 12% or 22% federal bracket.

How the $22,000 Job Reshapes Her Tax Picture

Before the job, her only income was Social Security, so none of it was taxable. Add $22,000 in wages, and her provisional income sails past both the $25,000 and $34,000 thresholds for a single filer. That flips her into the 85% tier.

The 2026 standard deduction of $16,100 for single filers, plus the new senior deduction layered on top, softens the blow. But the underlying math still means a meaningful slice of her benefit is now subject to federal income tax that did not exist the prior year.

Coordinating Work With Other Income

A few moves often help retirees in her shoes:

1. Scale the hours, not the job. Trimming wages to stay under the $34,000 provisional income line keeps her in the 50% tier instead of the 85% tier. The after-tax value of those last few shifts is often smaller than it looks.
2. Spend from Roth accounts or taxable savings principal. Roth withdrawals do not count toward provisional income, and returning principal from a brokerage account is not taxable income. Pulling spending money from these sources instead of adding more wages can keep the benefit-taxation snowball from growing.
3. Watch the calendar. Bunching a Roth conversion, a capital gain, and a part-time paycheck into the same year can push provisional income far past the 85% line. Spreading those events across tax years can keep more of the benefit shielded.

For most people in her position, the job is still worth taking. Earning $22,000 and losing some tax efficiency on benefits is almost always better than earning nothing. The mistake to avoid is assuming “past full retirement age” means “tax-free.” Reaching that age only ends the earnings test. Taxes on benefits are a separate story, unchanged since 1984.

What to Take Away

If you are weighing a part-time job after claiming Social Security, run the numbers with the wages included before you sign the offer letter. Knowing in advance whether you will land in the 50% tier, the 85% tier, or stay below both changes how you negotiate hours and how you draw from other accounts. The hardest mistake to undo is structuring a whole year around income you did not realize would be taxed. Every household’s mix of pensions, savings, and filing status shifts the picture, so the same job can have different tax consequences for two neighbors on the same street.