$12,500 Is the "No Tax on Overtime" Cap. Is Yours Even Worth Claiming?

"No tax on overtime" is the kind of phrase that sounds bigger than it actually is. Since the One Big Beautiful Bill Act created the qualified overtime compensation deduction, workers have heard it shorthanded as overtime pay going untaxed. It doesn't. The IRS spent the first week of August clarifying, again, that only a specific slice of your overtime paycheck qualifies — and a new compliance rule that just took effect this month could cost some workers the deduction entirely if their employer isn't tracking it the right way.

Here's the mechanic nobody puts in the headline. Federal law requires "time and a half" for overtime hours: your regular hourly rate, plus an extra half of that rate for every hour worked past 40 in a week. Only that extra half — the premium, not the full overtime paycheck — counts as qualified overtime compensation under the new law. Work 10 hours of overtime at $20 an hour and you're paid $300 for those hours ($20 × 1.5 × 10). Only $100 of that — the half-time premium — is what the deduction actually shelters from federal income tax. The other $200 is taxed exactly like your regular wages, same as always.

"No Tax on Overtime" Doesn't Mean What the Name Says

The deduction caps out at $12,500 in qualified overtime premium for single filers and $25,000 for joint filers, and it starts phasing out once modified adjusted gross income crosses $150,000 (single) or $300,000 (joint), disappearing completely above $275,000 and $550,000. Only overtime required under the Fair Labor Standards Act counts — state-mandated overtime and union-negotiated overtime premiums above the federal minimum don't qualify, and married workers who file separately can't claim it at all. The IRS's own guidance is explicit that the exclusion applies to "the 'half' portion" of time-and-a-half pay, nothing more.

For most workers, that means a real but modest number. The Bipartisan Policy Center estimates about 17 million filers will claim the deduction this filing season, with an average tax cut a little over $1,400. That's meaningfully less than what "no tax on overtime" implies to someone budgeting around it — and it's federal income tax relief only. Social Security, Medicare, and, in most states, state income tax still apply to the full overtime paycheck, premium included. The deduction changes one line on your federal return. It doesn't touch payroll withholding on the rest.

The IRS Just Closed the Do-It-Yourself Version

The bigger news this week isn't the deduction itself — it's how it gets substantiated going forward. IRS Fact Sheet FS-2026-13, released August 6, 2026, ends the informal grace period that covered 2025 wages. For last year's overtime, the IRS allowed workers to reconstruct their qualified overtime from pay stubs and payroll records if their employer's system wasn't set up to track it separately. That flexibility is gone starting with 2026 wages, filed in the 2027 tax season: employees can only claim what their employer reports in Box 12, Code TT of their W-2. No pay-stub reconstruction, no Form 4852 substitute filing, no exceptions — if it isn't on the W-2, it isn't deductible.

That makes this a now problem, not an April problem. If you're working real overtime hours this year and your payroll department hasn't confirmed it's tracking qualified overtime separately for W-2 reporting, you could earn a deduction all year and lose it at filing time purely on paperwork. Checking a recent pay stub, or asking HR directly whether your qualified overtime is being tracked for Box 12, Code TT, is worth ten minutes now rather than a surprise next spring.

What the Deduction Is Actually Worth

The dollar value depends entirely on your wage and how much overtime you actually work — which is where the "average $1,400" figure stops being useful for any one person. Three realistic scenarios show the spread:

A worker putting in 10 overtime hours a week nets roughly $1,000 back at tax time. Someone maxing out the cap gets closer to $2,750 — more than most households have ever seen from a single line item on a return. Either way, the money shows up once a year, at filing, as a bigger refund or a smaller balance due, which makes it a genuine windfall decision rather than a paycheck-to-paycheck one. Run your own numbers through the Compound Interest Calculator using your deduction amount and marginal bracket, and you'll see your actual figure, not the average.

Three Years to Bank It, Decades to Let It Grow

This deduction isn't permanent. It applies to tax years 2025 through 2028 under current law, which means most workers have three more filing seasons — 2027, 2028, and 2029 — to actually collect it before it needs to be reauthorized or it expires. Treat that stretch like what it is: a limited-time bonus, not a raise.

Here's what three years of the average $1,400 benefit does if you bank it instead of spending it. Deposited each year into a high-yield savings account at today's top rate — 4.15% APY, per Forbright Bank as of this week — three consecutive $1,400 deposits grow to about $4,377 by the third year, almost entirely from your own contributions, since the interest earned over just three years is modest. That's the safe, short-horizon math: a temporary tax break belongs somewhere insured and liquid while you're still collecting it, which is exactly what the High-Yield Savings Calculator is built to size out for your own deposit schedule.

The bigger number comes after. Take that same $4,377, stop touching it, and let it run for 20 years at a 7% average market return — it grows to roughly $16,938, nearly quadrupling. Always keep your emergency fund funded first if you don't already have one; a temporary tax break is a reasonable way to start one if you're building from zero. But once that's covered, the lesson here is specific: the deduction sunsets in 2028. The money you save from it, left alone, keeps compounding for decades after the tax break itself is gone.

The Deduction Expires in 2028. The Money Doesn't Have To.

None of this requires waiting for next April. If you worked overtime this year, ask now whether your employer is tracking qualified overtime for Box 12, Code TT — the deduction depends entirely on that number showing up correctly on your W-2. If you're not sure your withholding reflects it, a quick Form W-4 update can put more of it in your paycheck now instead of your refund later.

Either way, the number that matters isn't the headline "no tax on overtime." It's what your specific hours and bracket actually add up to, and what that adds up to three years and twenty years from now if you don't spend it the moment it lands.