Why Your Overtime Paycheck Got Hit So Hard (It's Not a Higher Tax Rate)

Overtime doesn't have its own tax rate

Federal income tax is calculated on your total annual income, and overtime dollars are taxed at exactly the same marginal rates as any other wage dollar you earn that year — there is no "overtime bracket" and no penalty for working extra hours. What changes is how much your employer withholds from that specific paycheck, which is a cash-flow timing issue, not a tax-rate issue.

Why withholding spikes: the annualizing effect

The IRS technically classifies overtime pay as a form of supplemental wages — the same category as bonuses — so employers are allowed to withhold it at a flat 22% if they pay and identify it separately. In practice, most hourly workers never see that: their overtime hours are baked into the same regular paycheck at time-and-a-half, and employers run the whole check through the regular percentage-method withholding tables instead of splitting it out. That formula works by taking whatever you were paid this period and annualizing it: multiplying a biweekly check by 26, a weekly check by 52, and so on, to estimate what you'd earn for the full year if every paycheck looked like this one. When overtime inflates a single check processed this way, the formula temporarily assumes you make that much every pay period — pushing more of that paycheck into higher withholding brackets than your actual annual income will end up in.

Worked example: $26/hr with 12 hours of overtime

Say you're single, paid biweekly, at $26/hour. A standard 80-hour check (no overtime) is your baseline. One pay period, you work 12 hours of overtime at time-and-a-half ($39/hr).

The payroll system doesn't know this overtime is a one-time thing — for withholding purposes it treats you as if you'd earn $66,248 all year instead of $54,080. That pushes a larger slice of this specific paycheck into a higher withholding bracket than the rest of your checks, so the take-home on the overtime hours looks disproportionately smaller than the regular hours right next to it on the same stub — even though your actual full-year tax liability is calculated only on what you really earned.

The 2025-2028 "no tax on overtime" deduction

Separately from the withholding mechanics above, federal law now lets many workers deduct part of their overtime pay when they file. For tax years 2025 through 2028, you can deduct the overtime premium — just the extra "half" on top of your regular rate that the Fair Labor Standards Act requires for overtime hours, not your entire overtime paycheck. The deduction is capped at $12,500 ($25,000 if married filing jointly) and phases out above $150,000 of modified adjusted gross income ($300,000 if married filing jointly).

That last row matters for this whole article: your paycheck's withholding still runs on the annualizing logic above, with no adjustment for this deduction built in. A heavy-overtime year can now mean two gaps between what got withheld and what you actually owe — the temporary over-withholding from annualizing, and this deduction lowering your real liability further — both of which only resolve when you file.

How this differs from bonus withholding

It's easy to conflate this with the "bonus tax" myth, and the two really are close cousins — the IRS groups both under supplemental wages. The practical difference is how they usually get paid: a bonus is typically a separate, one-off payment, so employers often take the simpler path and withhold a flat 22% on it regardless of your bracket. Overtime is almost always folded into your regular paycheck alongside your normal hours, so employers typically withhold on the combined total using the regular percentage-method tables — which is what causes the annualizing distortion above, rather than a flat rate. Same underlying confusion ("this got taxed more"), different plumbing — and if your employer does pay and identify overtime separately, it can be withheld at the flat 22% rate too.

How it reconciles at tax time

Withholding is just a prepayment estimate. When you file, your actual tax liability is computed on your real total annual income — regular pay plus every hour of overtime you actually worked, no more, no less. If a heavy-overtime pay period over-withheld relative to your real annual rate, that difference comes back as part of your refund (or reduces what you owe). Steady overtime that continues all year does raise your real income and your real tax bill — but only by the normal marginal-rate math, never at some special elevated "overtime rate."

FAQ: overtime tax myths