A lot of overtime workers filed their 2025 taxes this spring without completely knowing what they were doing. Not because they were careless. Because the IRS hadn’t given employers the tools to report the right number yet.
So workers guessed — and some of those guesses were wrong.
For 2026, that problem goes away.
The IRS published new guidance on Aug. 6 that locks in how the overtime deduction works and puts the reporting responsibility squarely on employers, according to CNBC.
IRS overtime tax deduction 2026 rules and W-2 Box 12 Code TT explained
The deduction came from the One Big Beautiful Bill Act, which Trump signed in July 2025. Same law that created deductions for tip income, auto loan interest, and an extra break for workers 65 and older. All of them run through 2028.
That’s what Fact Sheet FS-2026-13 pins down. Your employer has to put a specific dollar amount in Box 12 of your W-2 under Code TT.
That number is what your deduction is based on. Not what you calculated. Not what your pay stubs show. What the employer put in that box. Get that wrong, and the deduction disappears with it.
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Last filing season was messy. Employers weren’t required to break the figure out separately, so workers pieced it together from whatever records they had.
Tom O’Saben, a tax expert who handled a lot of these returns, described it to CNBC as a “best guesstimate.”
Some of those estimates held. Others didn’t. In 2026 the employer owns the number, and they face penalties if they get it wrong.
What actually qualifies for the IRS overtime deduction in 2026
The deduction does not cover all your overtime pay. Only the premium portion qualifies. Here is what that means.
Federal law requires employers to pay at least 1.5 times your regular hourly rate for hours beyond 40 in a week. If your normal rate is $40 an hour, your overtime rate is $60.
The $20 difference is the premium. That $20 is what qualifies. The $40 base rate, even on overtime hours, is still fully taxable.
State law and union contract overtime don’t count either. If your employer pays more than the federal minimum because of a labor agreement or state rule, only the federal premium qualifies. The extra amount above that does not.
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Business owners should also know: If you own at least 20% equity in a company and actively manage it, you are not eligible for this deduction regardless of how many hours you work.
The maximum is $12,500 per year for single filers, $25,000 for couples filing jointly. Income limits apply. Single filers lose the benefit gradually once modified adjusted gross income passes $150,000. Joint filers at $300,000.
Most people don’t get close to the cap. Twenty-nine million workers claimed the deduction in the most recent filing season. Average deduction: just over $3,100. Three-quarters of claimants made under $100,000, according to the Treasury Department.
What to check on your W-2 before you file your 2026 overtime deduction
January 2027 comes, W-2 lands in your inbox or mailbox.
Before you hand it to a tax preparer or upload it to software, flip to Box 12 and find Code TT. That’s your number. Run it against your pay stubs from the year.
If your employer tracked it correctly, it should line up. A lot of payroll systems are new to this. Not all of them are going to get it right the first time.
An important note: The number in Box 12 Code TT might be larger than your actual deduction. Employers are required to report the full qualifying overtime amount, even if it exceeds the cap.
If your employer paid you $30,000 in qualifying overtime, they report $30,000. You still only deduct up to $12,500. The box and the deduction are not the same thing.
If the number is wrong and it’s too low, your only fix is a corrected W-2 from your employer, called a Form W-2c. You cannot substitute your own calculation. You cannot use Form 4852.
The IRS is clear: the deduction is capped at what the employer reported, full stop.
If you received a 1099 showing something labeled as overtime, that’s rare. The rules that cover employees under the FLSA don’t automatically extend to contractors the same way. Don’t assume it qualifies without checking.
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What the overtime deduction means for your paycheck right now in 2026
A lot of workers want to know if they can adjust their withholding to account for the deduction before they file. The answer is yes, but it requires a step most people skip.
You would need to submit a new Form W-4 to your employer reflecting the deduction you expect to claim. Your employer cannot reduce withholding on their own. They need the updated W-4 from you first.
If you do nothing, your overtime will be withheld at your regular rate throughout the year and you will get the tax savings as a refund when you file. Most people find that easier than adjusting withholding mid-year, especially if their overtime hours vary week to week. But if you are consistently working significant overtime and want the money sooner, the W-4 route is available.
The IRS has also updated its online Tax Withholding Estimator to account for the overtime deduction, which can help you run the numbers before making any changes.
Social Security and Medicare taxes still apply to all overtime pay. The deduction only works against federal income tax. State income taxes are a separate question entirely.
Some states conform to the federal treatment, others don’t. If you live in a state with its own income tax, you may owe state tax on overtime even if your federal bill goes down.
Who is most likely to actually benefit from this deduction
The people most likely to see real money from this deduction are hourly workers in industries where substantial overtime is routine.
Healthcare, manufacturing, transportation, construction, retail and logistics are the obvious ones. A nurse working 60-hour weeks, a warehouse worker pulling double shifts during peak season, a truck driver logging hours above the 40-hour threshold, these are the workers the deduction was designed around.
The numbers back that up. The Treasury Department found that 75% of people who claimed the deduction in 2025 had income below $100,000. Nearly all of them, 96%, made less than $200,000.
“No tax on overtime can fit on a bumper sticker, but all of the terms and conditions that apply naturally led to lots of questions from workers and employers about what kind of overtime is eligible,” said Andrew Lautz, senior director of federal policy at the Tax Foundation, according to CNBC. This is a middle-income benefit, and the data shows it is reaching middle-income workers.
This is a middle-income benefit, and the data shows it is reaching middle-income workers.
The average deduction was just over $3,100. Run that through a 22% federal bracket and you are talking about roughly $680 back in a worker’s pocket. Not life-changing on its own, but real. And for workers who hit the cap, whether $12,500 as a single filer or $25,000 filing jointly, the savings are significantly larger.
Getting to the cap as a single filer would require roughly 625 overtime premium hours at $20 an hour. That’s a lot of overtime, but it’s not uncommon in certain industries during busy seasons.
The deduction is real, and it has already saved millions of workers money. In 2026, the reporting gets cleaner. The savings potential is the same. Check the box, verify the number, and don’t leave it sitting on the table.
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