Bonus Calculator
Calculate a performance bonus and what lands in your pocket after tax.
What the Bonus Calculator does
Bonuses are often quoted as a target percentage of salary, then scaled by a performance multiplier. Many jurisdictions withhold tax on bonuses at a flat supplemental rate, which can differ from your regular withholding.
Formula
Gross bonus = Target bonus × Performance multiplierTarget bonus = Salary × Bonus percentage (or a fixed amount)Net = Gross − Tax withheld
Inputs explained
| Input | Unit | Required | Notes |
|---|---|---|---|
| Annual salary | selected currency | Yes | Accepts more than 0. |
| Bonus type | one of 2 options | Yes | — |
| Bonus percentage | % | In some modes | Shown Bonus type is Percentage of salary. |
| Bonus amount | selected currency | In some modes | Accepts more than 0. Shown Bonus type is Fixed amount. |
| Performance multiplier | % | Optional | 100% means target was met exactly. |
| Tax withholding rate | % | Optional | — |
| Currency | one of 10 options | Optional | — |
How to use it
- Choose Bonus type and Currency.
- Enter Annual salary.
- Fill in the remaining inputs the form shows for your choice.
- Optionally add Performance multiplier and Tax withholding rate.
- Select Calculate.
Worked example
$85,000 salary, 15% target bonus, 120% performance, 22% withholding.
- Salary
- 85000
- Rate
- 15
- Performance
- 120
- Tax
- 22
Gross $15,300, net $11,934.
Frequently asked questions
Why is my bonus taxed so heavily?
Many payroll systems withhold bonuses at a flat supplemental rate rather than your marginal rate. If it over-withholds, you get the difference back when you file.