A warehouse worker earning $20 an hour picks up 10 extra hours a week. Come tax time, she claims a deduction on all $300 of that overtime pay. The IRS says only $100 of it qualifies. Multiply that kind of mistake by millions of filers, and you start to understand the problem the federal government is staring at this spring.
When the IRS opened the 2026 filing season, roughly 22 million workers claimed the new “no tax on overtime” deduction by the time the April deadline passed. Treasury officials have characterized that total as 5 to 8 million above what they projected, though the administration has not published the baseline forecast behind that figure, and the gap has not been independently verified. The numbers trace back to an unnamed Treasury official’s briefing with reporters, where figures were rounded, and to a White House Tax Day statement touting the provision as proof that Americans are keeping more of what they earn.
The overtime deduction was one of several Trump-era tax breaks that drew a combined 53 million filers during the season. But the overtime provision stands out because of the reported gap between what Treasury anticipated and what actually showed up. That gap raises a pointed question: Did millions of workers claim more than they were entitled to, or did the government simply underestimate how many Americans work overtime?
How the deduction actually works
The mechanics matter, because they sit at the center of the overclaiming concern. The IRS published Schedule 1-A through guidance IR-2026-28, tying the deduction to the Fair Labor Standards Act, section 7. Under that law, overtime pay includes a “premium” portion: the extra half-time rate workers earn for hours beyond 40 in a workweek. Only that premium is deductible, not the full hourly wage for those extra hours.
Take that warehouse worker earning $20 an hour. Her overtime rate is $30: $20 of base pay plus a $10 premium. Only the $10 premium qualifies. If she logged 10 overtime hours a week for 50 weeks, the deductible amount would be $5,000 for the year, not $15,000. That distinction is worth thousands of dollars in potential tax savings, and it is exactly where errors are most likely to creep in.
The deduction carries income caps and a modified adjusted gross income phaseout, but it is available even to taxpayers who take the standard deduction rather than itemizing. That design choice dramatically widened the eligible pool. Millions of lower- and middle-income hourly workers qualified without changing how they file. Many simply followed new prompts in tax-preparation software or filled out Schedule 1-A directly.
One wrinkle that has gotten less attention: the federal deduction is defined by reference to FLSA section 7, but some states have their own overtime laws with different thresholds, coverage rules, or premium calculations. A worker in California, for instance, earns daily overtime after eight hours, not just weekly overtime after 40. That kind of mismatch between state and federal definitions likely contributed to filing errors, though the IRS has not released data on how many Schedule 1-A returns contained discrepancies.
Three factors that pushed claims past projections
Several forces converged to drive the numbers well beyond what Treasury says it expected. Because the baseline projection has not been made public, the 5-to-8-million overshoot remains an administration characterization rather than an independently established shortfall. Still, the structural reasons for a surge are clear.
No employer reporting requirement in year one. For the 2025 tax year, employers were not required to separately report qualified overtime compensation on W-2 forms. Workers had to calculate the deductible premium themselves or trust their tax software to estimate it. That left enormous room for honest mistakes and aggressive interpretations alike.
Software prompts that may have been too generous. Because W-2s did not break out the FLSA premium, popular filing platforms had to ask users to self-report overtime hours and pay rates. If those prompts were imprecise, or if users misunderstood what counted, millions of filers may have claimed deductions on their full overtime pay rather than just the premium. No major tax-software company has publicly disclosed error rates or flagged problems with its overtime module, and the IRS has not released error-rate data on Schedule 1-A returns.
Penalty relief that lowered the stakes. Before most returns were even filed, the IRS issued Notice 2025-62, granting penalty relief for incomplete or inaccurate overtime tracking during the first year. A follow-up, Notice 2025-69 (published in Internal Revenue Bulletin 2025-50), outlined transition methods including “reasonable reliance” standards. Those waivers were a practical acknowledgment that the government expected confusion. They also reduced the deterrent against overclaiming, which may have contributed to the surge.
What Washington has disclosed and what it has not
Treasury released filing-season metrics as of March 8, 2026, covering total returns processed and the share of filers using Schedule 1-A. A Treasury official briefing reporters near the deadline put the overtime-deduction total at about 21 million filers. The White House folded the provision into its Tax Day messaging, calling it a centerpiece of the administration’s economic agenda and citing average deduction amounts for eligible families.
But several critical pieces of information remain missing. The aggregate revenue cost of the 22 million claims has not been disclosed. If a significant share prove ineligible on review, the IRS faces a difficult choice: issue mass corrections that delay refunds and generate disputes, or absorb the revenue loss. Neither Treasury nor the IRS has signaled which direction it will go.
Treasury’s topline figures also do not break out claims by income bracket, industry, or geography. That leaves open whether the deduction is flowing primarily to lower-wage hourly workers, who were the intended beneficiaries when the provision was pitched as a campaign promise in 2024, or to higher-earning employees with substantial overtime. No Congressional Budget Office or Joint Committee on Taxation analysis has been published to fill that gap as of May 2026.
What filers should know right now
For workers who already filed and claimed the deduction, the practical calculus is fairly straightforward. If the claim was based only on the FLSA section 7 premium (the extra half-time rate for hours above 40 in a workweek), it should hold up under review. If the full overtime rate was treated as deductible, the claim is more vulnerable once the IRS begins reconciling Schedule 1-A amounts against employer-reported data.
Taxpayers who used mainstream software and answered questions accurately will likely fall under the “reasonable reliance” protections outlined in Notice 2025-69. But reasonable reliance is not a blanket guarantee. If the underlying numbers are off, adjusted refunds or follow-up notices are possible. The IRS has not specified timelines for reviewing Schedule 1-A claims, but historically, automated matching against W-2 data begins in the months after filing season closes.
Workers who suspect they overclaimed may want to consult a tax professional about whether filing an amended return makes sense before the IRS flags the discrepancy on its own. An amended return filed proactively generally carries less risk of penalties and interest than waiting for an IRS notice.
Employer reporting arrives for the 2026 tax year and reshapes the next filing season
Beginning with the 2026 tax year, employers must separately report qualified overtime compensation on W-2 forms. That single change should tighten the link between payroll data and deduction claims, reducing room for both honest errors and aggressive interpretations. It will also give Treasury and outside analysts their first clear look at who is actually benefiting and at what cost to federal revenue.
Until those numbers arrive, the story of the “no tax on overtime” deduction is less about proven abuse than about what happens when a new tax break launches with generous eligibility, no employer reporting, first-year penalty relief, and software platforms racing to help millions of workers claim it. Every one of those factors pushed in the same direction: more claims, faster, than anyone in Washington was prepared to process. Whether 22 million was the right number or an inflated one is a question the IRS will spend the rest of 2026 trying to answer.
