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Tax & Income Calculators

Bonus Tax Calculator

Estimate what is left of a bonus after withholding, payroll taxes and any retirement contribution.

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Net bonus

$6,567

Income tax withheld
$2,068
Payroll tax
$765
Into retirement savings
$600
Bonus breakdown
  • Net
  • Income tax
  • Payroll tax
  • Retirement
Bonus

How this calculator works

Net = bonus − retirement contribution − withholding − payroll tax

withholding
the flat supplemental rate many employers apply to bonuses

Example calculation

Illustrative example — not advice

Worked example — the bonus tax calculator as it loads, using the default figures below.

  1. 01Enter bonus amount: $10,000.
  2. 02Enter supplemental withholding rate: 22%.
  3. 03Enter payroll tax rate: 7.65%.
  4. 04Enter retirement contribution: 6%.
  5. 05Read the net bonus from the results panel: $6,567.

Net bonus: $6,567. Income tax withheld: $2,068. Payroll tax: $765. Into retirement savings: $600.

These figures come straight from the calculator above running on the values listed, so you can retype them and confirm every number yourself. Change any input and the results update immediately. Illustrative only — not a quote, offer or recommendation.

Important considerations

  • Withholding is not the final tax — any over-withholding is reconciled at year end.
  • Diverting a bonus into retirement savings usually reduces the immediate tax.

Terms used here

Frequently asked questions

Are bonuses taxed at a higher rate?

They are usually withheld at a flat supplemental rate, but the final liability follows your normal bands.

Disclaimer

Legamoney calculators are educational tools. Results are estimates based on the figures you enter and do not constitute financial, tax or legal advice.

Last reviewed 2026-08-01