Overtime is not taxed at a higher rate than your regular pay. Every dollar you earn is treated the same by the federal income tax code, whether it came from your standard forty hours or your third double shift of the week. The reason your overtime check looks so heavily taxed is that your employer’s payroll software withholds more from that check, projecting the spike across the whole year as if it were your new permanent salary. The excess comes back to you as a refund when you file. And for tax years 2025 through 2028, a new federal deduction lets many hourly workers subtract up to $12,500 of their overtime premium from taxable income.
Why the Paycheck Looks Punished
The federal income tax is marginal. Your income is sliced into layers, and each layer is taxed at its own rate. A dollar of overtime lands at the top of the stack, taxed at whatever bracket rate applies to that next dollar. It is not taxed at a special “overtime rate,” and it does not raise the rate on anything you already earned.
What changes on an overtime week is withholding, not tax. Most payroll systems use what the IRS calls the annualization method: they take what you earned in a single pay period, multiply by the number of pay periods in a year, and withhold as if that figure were your annual salary.1Internal Revenue Service. Publication 15-T (2026), Federal Income Tax Withholding Methods
Say you normally bring home $1,200 biweekly. The system projects $1,200 × 26 = $31,200 for the year and withholds against that. Now a heavy overtime week pushes your check to $2,000. The system projects $2,000 × 26 = $52,000 and withholds against that higher salary for that check alone. Some of the check gets treated as if it were sitting in a higher bracket. The software has no way to know whether the overtime is a one-week event or a permanent raise, so it plays it safe and assumes the latter.
The overwithholding is a deposit, not your actual tax bill. It settles up when you file.
The Two Withholding Methods Employers Use
Federal regulations classify overtime, bonuses, and commissions as “supplemental wages,” separate from your regular pay.2eCFR. 26 CFR 31.3402(g)-1 – Supplemental Wage Payments When an employer can identify the overtime portion separately, it has two ways to withhold on it.
The flat method withholds exactly 22% of the supplemental amount, regardless of your actual bracket. Simple and predictable, though sometimes too high and sometimes too low.
The aggregate method combines your overtime with your regular pay for the period, treats the total as one payment, and runs it through the standard withholding tables. This is the one that produces the sticker shock, because the combined total pushes projected annual income higher. Most payroll systems default to it because it integrates cleanly with automated processing.
States add their own layer. Rates and methods vary widely, and the IRS points employers to their state tax department for the details.3Internal Revenue Service. Publication 15 (2026), (Circular E), Employer’s Tax Guide
Social Security and Medicare Still Hit Overtime
Beyond income tax, every paycheck carries Social Security and Medicare taxes, together called FICA. These apply to overtime dollars the same as regular pay, and there are no brackets softening the first dollars.
Social Security tax is 6.2% on wages up to $184,500 in 2026.4Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Once your year-to-date wages cross that ceiling, Social Security withholding stops for the rest of the year. Below the cap, every overtime dollar is subject to the full 6.2%.
Medicare tax is 1.45% on all wages with no cap. An additional 0.9% Medicare surtax kicks in once your wages exceed $200,000 in a calendar year ($250,000 for married couples filing jointly).5Internal Revenue Service. Questions and Answers for the Additional Medicare Tax Your employer starts withholding the extra 0.9% once your pay from that employer crosses $200,000, regardless of your filing status. For high-overtime earners, that additional Medicare amount is a real cost that doesn’t come back at year-end.
The New Overtime Deduction for 2025 Through 2028
Starting with the 2025 tax year, a new federal deduction can lower taxable income for workers who earn qualified overtime. The deduction runs through 2028.6Internal Revenue Service. One, Big, Beautiful Bill Act: Tax Deductions for Working Americans and Seniors
Who Qualifies
The deduction only covers overtime pay required under Section 7 of the Fair Labor Standards Act. You must be a non-exempt worker covered by the FLSA’s overtime rules. Salaried employees who are exempt from federal overtime don’t qualify, even if their employer voluntarily pays a premium for extra hours. Overtime required only by state law, without a corresponding FLSA obligation, doesn’t count either.7Internal Revenue Service. Questions and Answers About the New Deduction for Qualified Overtime Compensation
What Actually Counts as Overtime Pay
This is where people get tripped up. The deduction covers only the overtime premium, not the full time-and-a-half rate. If your regular wage is $30 and you’re paid $45 for an overtime hour, the qualified amount is $15, the “half” in time-and-a-half. The base $30 for that hour is regular pay and isn’t deductible.7Internal Revenue Service. Questions and Answers About the New Deduction for Qualified Overtime Compensation
The Cap and the Phase-Out
The maximum deduction is $12,500 per return, or $25,000 on a joint return where both spouses have qualifying overtime. It begins phasing out once modified adjusted gross income exceeds $150,000 ($300,000 joint), shrinking by $100 for every $1,000 above that threshold. A single filer’s deduction disappears entirely at $275,000 of MAGI, a joint filer’s at $550,000.7Internal Revenue Service. Questions and Answers About the New Deduction for Qualified Overtime Compensation
How to Claim It
The overtime deduction is above-the-line, so you don’t need to itemize. You claim it on Schedule 1-A (Form 1040), and the total flows to line 13b of Form 1040. You’ll need a Social Security number valid for employment, and married taxpayers must file jointly to take it.7Internal Revenue Service. Questions and Answers About the New Deduction for Qualified Overtime Compensation Starting with the 2026 tax year, employers are required to separately report qualified overtime on your W-2. For 2025, you may have to work from your own pay records to identify the premium portion.
One important limit: the deduction reduces your federal income tax but does not reduce FICA. Social Security and Medicare still apply to every overtime dollar.
If You Want Less Withheld From Each Check
If you regularly work overtime and your paychecks keep getting hammered by withholding, you don’t have to wait for the refund. The IRS Tax Withholding Estimator lets you enter your expected income for the year, including overtime, and generates a revised Form W-4 to hand to your employer.8Internal Revenue Service. Tax Withholding Estimator
By claiming additional adjustments on your W-4, you can bring per-check withholding closer to your actual annual tax bill. The tradeoff: if you cut it too aggressively and end up owing more than $1,000 at filing, you can face an underpayment penalty. The safe harbor is straightforward. Total withholding for the year needs to cover at least 90% of your current-year tax liability, or 100% of what you owed last year (110% if your prior-year AGI exceeded $150,000).9Internal Revenue Service – IRS. Internal Revenue Bulletin: 2026-02
If your overtime is unpredictable, re-run the estimator two or three times a year as the picture clarifies. A mid-year W-4 update based on actual year-to-date earnings is more accurate than either the payroll system’s projection or a guess you made in January.
How It Settles at Tax Time
Your real tax liability is calculated once a year on Form 1040. The IRS compares what you actually owed on your full-year income against everything your employer withheld across all those paychecks. Where payroll software overwithheld because of overtime spikes, the excess comes back as a refund.
A dollar earned in January overtime and a dollar earned in September’s regular shift end up taxed at the same marginal rate once the year’s income is stacked up. What differs is timing. The overtime dollar may have been withheld at a higher rate during that pay period, but that overwithholding is temporary and the final calculation doesn’t distinguish between overtime and regular earnings.
For workers with regular overtime, the practical result is often a larger refund. That refund isn’t a bonus from the government; it’s your own money coming back because your employer’s system sent more than you owed. Whether you’d rather have that money spread across each paycheck or arrive as a lump sum in April is a choice you control through your W-4.