Start with earnings, not the tax label
For employees covered by the federal Fair Labor Standards Act (FLSA) who are not exempt, overtime is generally due after 40 hours worked in a workweek, at no less than one and one-half times the regular rate. A workweek is not the same as a two-week pay period. Two weeks cannot generally be averaged to avoid overtime. State law can provide additional protections, and salaried status alone does not establish an overtime exemption.
The regular rate used for legal overtime can include compensation beyond a stated hourly wage, such as certain nondiscretionary bonuses. Our overtime calculator multiplies the rate, hours, and multiplier you enter. It does not decide your legal entitlement or calculate a complex regular rate. Use the applicable rate supplied by payroll, then check the gross-pay line before evaluating taxes.
Sources: U.S. Department of Labor — overtime pay under the FLSA
Why the withholding percentage can rise
Ordinary overtime wages are generally subject to federal income-tax withholding and Social Security and Medicare taxes. There is no universal federal “overtime tax rate.” When payroll treats overtime as part of regular wages, a larger check can be annualized as though that earnings level continued all year. That can place more projected income in higher withholding bands.
An employer may instead treat separately identified overtime as supplemental wages under IRS rules. The eligible flat supplemental withholding method is generally 22%; mandatory rules apply to supplemental wages exceeding $1 million. These are withholding methods, not your final tax rate. Our regular-wage calculator does not model supplemental-wage methods. Ask payroll which method was used before comparing a check.
Your return reconciles income, deductions, credits, and payments across the year. Moving into a higher marginal bracket does not cause all earlier dollars of income to be taxed at that higher rate. A larger withholding amount on one check is therefore not proof that taking overtime left you worse off.
Sources: IRS Publication 15 (2026) — employer payroll taxes; IRS Publication 15-T (2026) — federal withholding methods
What the qualified overtime deduction actually covers
For 2025 through 2028, including 2026, eligible taxpayers can deduct qualified overtime compensation for federal income-tax purposes. The eligible amount is generally the premium above the regular rate that the FLSA requires—the “half” in time-and-a-half—not all compensation for overtime hours. Contractual overtime, holiday premiums, or state-law-only overtime are not automatically qualified under this federal rule.
The annual maximum is $12,500, or $25,000 for married taxpayers filing jointly. The deduction phases out above modified adjusted gross income of $150,000, or $300,000 for joint filers. Married taxpayers must file jointly to claim it, and identification and reporting requirements apply. It can be available whether you itemize or take the standard deduction. Eligibility and the allowed amount must be determined under the official instructions.
This is an income-tax deduction, not an exemption from Social Security or Medicare. It also does not establish that a state excludes the same income. The IRS August 2026 FAQs specify separate reporting of qualified overtime on the 2026 W-2 in box 12 using code TT. If your statement is missing or wrong, contact your employer about correction rather than assuming the total overtime line is deductible.
Sources: IRS FS-2026-13 — updated qualified overtime FAQs (August 2026)
Use the right tool for the question
To estimate the next regular paycheck, include all overtime earnings in gross pay and enter the W-4 elections actually used by your employer. An eligible overtime-related deduction can be reflected through W-4 Step 4(b); it is not applied automatically just because overtime was worked. Use the federal withholding guide and the official IRS estimator before changing elections, particularly if income or overtime varies.
Our withholding mode models elected adjustments, not a determination of your qualified annual deduction. The separate legacy annual-estimate mode offers a simplified overtime deduction option, but omits parts of a complete return and cannot verify FLSA eligibility or W-2 reporting. Its output is not an official 2026 tax calculation. For a payroll discrepancy, keep the hours record, pay stub, W-4, and qualified-compensation statement and compare the earnings and tax lines separately.
Sources: IRS Form W-4 (2026) and instructions; IRS Tax Withholding Estimator; IRS FS-2026-13 — updated qualified overtime FAQs (August 2026)
Try the calculators
Sources
Related guides
Federal tax withholding explained: your 2026 W-4
Your employer is collecting a payment toward your annual income tax. The W-4 tells payroll how to estimate that payment; it does not determine your final return by itself.
Pay basicsPaycheck deductions explained
“Pre-tax” does not mean exempt from every tax. Identify which wage base each deduction changes and whether it is actually taken out of your cash pay.
Pay basicsHow to calculate take-home pay
A good estimate starts with the right earnings period and separates taxes from benefits. Use your pay stub to make each input meaningful.