★Paycheck Atlas2026 methods
COMMISSION & BONUS PAY · 2026

Tax on Commission Payments

Commission is taxable, and it is taxed at the same rates as your salary — but it is usually withheld at a flat 22%, which is why a commission cheque so often looks as though it has been taxed punitively. The difference between withholding and tax is the whole story.

THE SHORT ANSWER

Commission Is Taxable — at Ordinary Rates

Commission is wages. It lands in the same W-2 box as salary, it is subject to federal income tax, Social Security, Medicare and state tax, and when you file it is taxed on the ordinary brackets like every other dollar you earned.

What makes commission feel different is that the IRS classes it as supplemental wages, alongside bonuses, overtime premiums, severance and back pay. Supplemental wages have their own withholding rules — not their own tax rates. That single distinction explains almost every complaint about commission being “taxed more”. Commission and taxes only look unusual because of how payroll withholds them, not because of how they are ultimately taxed.

WITHHOLDING

Two Methods, Two Very Different Cheques

The flat supplemental method

The employer withholds a flat 22% federal tax on the commission, separately from regular pay. Above $1,000,000 of supplemental wages in a calendar year, the excess is withheld at 37%. Add 7.65% FICA and state tax and roughly 30% of a commission cheque disappears before any bracket is considered.

The aggregate method

The employer adds the commission to your regular pay for the period and withholds on the combined amount using your W-4. This is where the real distortion happens: percentage-method withholding annualises the cheque, treating a one-off $10,000 commission as though you would receive it every period. The system briefly believes you earn far more than you do and withholds accordingly.

$8,000 commissionWithheldNet
Federal — flat 22%$1,760.00—
Social Security — 6.2%$496.00—
Medicare — 1.45%$116.00—
State — 5% example$400.00—
Total$2,772.00$5,228.00

Neither method changes what you owe. Both are prepayments, reconciled on the return.

AT FILING

What You Actually Owe

At filing, commission joins your other income and is taxed at your marginal rate. Three outcomes follow, depending on where that rate sits relative to 22%:

  • Marginal rate below 22% — you over-withheld and the difference comes back as a refund
  • Marginal rate at 22% — roughly even, which is why the rate was chosen
  • Marginal rate above 22% — you under-withheld and will owe, sometimes substantially in a strong commission year

That last case is the one to watch. A salesperson whose commission doubles their income can be withheld at 22% all year while owing 32% — a gap that arrives as a bill in April along with a possible underpayment penalty. The fix is a mid-year check: compare year-to-date withholding against projected liability using the YTD calculator, and adjust the W-4 if they diverge.

FAQ

Commission Tax — Frequently Asked Questions

Is commission taxable?+

Yes. Commission is ordinary wages — fully subject to federal income tax, Social Security, Medicare and state income tax. It appears in the wages box of your W-2 alongside salary, not as a separate category.

Is commission taxed at a higher rate than salary?+

No. It is withheld differently, which makes it look that way. Employers commonly withhold commission at the 22% flat supplemental rate instead of your regular W-4 tables. At filing, commission is taxed at exactly the same marginal rates as salary — so if your rate is below 22%, the excess comes back as a refund.

What is the tax rate on commission payments?+

There is no separate commission tax rate. For withholding, employers use either the 22% flat supplemental rate (37% on supplemental wages above $1,000,000 in a year) or the aggregate method, which combines the commission with your regular pay and withholds on the total. Your actual tax is your ordinary marginal rate.

Why was so much taken out of my commission check?+

Two likely reasons. If the flat method was used, a straight 22% came off the top plus 7.65% FICA and state tax — around 30% before you reach a bracket calculation. If the aggregate method was used, payroll treated the larger combined cheque as if every cheque this year would be that size, which pushes withholding into higher brackets temporarily.

Do I pay Social Security and Medicare on commission?+

Yes, on both. Social Security at 6.2% applies until your total wages reach the $184,500 wage base for 2026; Medicare at 1.45% applies with no ceiling, plus 0.9% more above $200,000 single or $250,000 joint.

How is commission taxed for a 1099 contractor?+

Differently, and more heavily on the payroll side. Nothing is withheld, and the commission is business income subject to self-employment tax at 15.3% on top of income tax. You are responsible for quarterly estimated payments. Business expenses reduce the profit that both taxes apply to.

Can I reduce tax on commission income?+

The levers are the ordinary ones: increase 401(k) or HSA contributions in a high-commission year to cut taxable income, and if commission is lumpy, check mid-year whether withholding is tracking your actual liability. Deferring a commission payment into the next tax year can help if this year pushes you into a higher bracket, but that is usually the employer's decision.

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