Tax · Free calculator

Bonus Tax Calculator

Calculate the actual take-home from a year-end or signing bonus. Models 22%/37% federal supplemental withholding, state supplemental rates, and FICA.

Disclaimer: Educational only — not tax or legal advice. Federal withholding follows IRS Pub 15-T (2026 brackets); FICA caps reflect SSA's 2026 wage base. State rates mirror each state DOR's published 2026 brackets. Verify with a CPA before filing.

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$25,000
6.99%

CA 10.23%, NY 11.7%, TX/FL/WA 0%, others 4–7%.

24%

What you actually fall into at year-end.

0%
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Formula used

Bonus withholding

Withholding is flat; actual tax depends on your year-end marginal bracket. The 22% supplemental rate underwithholds anyone in the 24%+ bracket.

Fed = 22% (or 37% over $1M) · State = state supplemental rate · FICA = 7.65%
Federal supplemental ≤$1M
22%
Federal supplemental >$1M
37%
CA supplemental rate
10.23%
NY supplemental rate
11.7%
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RevenueLab. (2026). Bonus Tax Calculator. Retrieved from https://revenuelab.fyi/bonus-tax-calculator
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Why your bonus 'feels' taxed at 50%

It's not — it's withholding theater. The 22% federal + state + 7.65% FICA = ~35–40% withheld. Your true tax depends on your year-end bracket. People in the 24% bracket who see 40% withheld will get a refund. People in the 35% bracket will owe.

Route some bonus to 401k

If you're not maxed on 401(k), elect a high % from your bonus before it hits payroll. The contribution avoids federal+state income tax (saves 30%+) and grows tax-deferred. Most HR systems let you set a separate bonus elections rate.

Sign-on bonuses with clawbacks

Most sign-on bonuses are taxed when paid. If you leave early and repay the gross, you've got a problem — the IRS calls this 'claim of right' and the deduction is tricky. Negotiate net repayment OR a 12-month vesting cliff to avoid.

FAQ

Can I lower bonus withholding?

Yes — submit a fresh W-4 before the bonus pay date. Some payroll systems support 'block supplemental' or use aggregate method which applies your normal withholding rate.

Are bonuses taxed differently than salary?

No — at year-end they're all ordinary income at the same rates. Only the withholding method differs (supplemental flat vs. wage-bracket).

Do bonuses count toward 401(k) match?

Depends on the plan. Many plans match the % election from any cash compensation including bonuses; some exclude bonuses. Check your SPD.

How this calculator is built

Independently maintained

Written by Sam Doshi and the RevenueLab editorial team. We don't sell the data feeds this tool is built on.

Sourced from primary data

Benchmarks come from public AdSense / Stripe / IRS disclosures and reader-submitted data — never third-party "$X per view" claims. Full methodology.

Last reviewed

June 2026. We re-check every figure on the platform on a rolling quarterly cycle.

Editorial standards

See our editorial policy and disclaimer. Results are estimates, not advice.