How bonuses are taxed explained for investors
How bonuses are taxed explained for investors, with a worked example, a checklist and the mistakes to avoid.
Why this matters for investors
For investors, tax is one of the few costs that can be managed, and after-tax returns are the ones that matter.
Worked example
Here is the calculation with sample figures. Change any number in the Bonus Tax Calculator to run your own.
| Amount | $10,000.00 |
| Federal rate (%) | 22% |
| State rate (%) | 5% |
| Federal tax | $2,200.00 |
|---|---|
| State tax | $500.00 |
| Social Security and Medicare | $765.00 |
| Net amount | $6,535.00 |
How bonuses are taxed: how it works
Bonuses are taxed as income, but withholding often uses a flat supplemental rate, which can make the bonus look more heavily taxed than salary.
At filing time the bonus is simply part of total income.
A second example with larger figures
Scaling the inputs up shows how the result moves. Percentages stay the same, so the tax grows in proportion to the amount it is applied to.
| Amount | $30,000.00 |
| Federal rate (%) | 22% |
| State rate (%) | 5% |
| Federal tax | $6,600.00 |
|---|---|
| State tax | $1,500.00 |
| Social Security and Medicare | $2,295.00 |
| Net amount | $19,605.00 |
Using the calculator step by step
- Open the Bonus Tax Calculator.
- Enter your own figures on each numbered line.
- Set the rate to the one that applies to you. Defaults are examples, not advice.
- Read the result and the formula below it.
Key terms
- Taxable income
- Income left after allowances and deductions, on which the tax rates are applied.
- Zero rate
- A rate of 0% on a taxable supply. Unlike an exemption, the seller can usually still reclaim tax on costs.
- Tax credit
- An amount subtracted directly from the tax bill, worth its full face value.
- Standard rate
- The rate that applies to most goods and services unless a specific reduced rate, zero rate or exemption applies.
- Effective rate
- Total tax divided by total income, the average rate you actually pay.
A quick checklist for investors
- Find the withholding rate used.
- Add state tax and FICA.
- Reconcile at filing time.
Common mistakes to avoid
- Assuming the withholding rate is the final tax.
- Forgetting state tax on bonuses.
Run your own numbers. The Bonus Tax Calculator updates as you type and shows the formula it uses.
Frequently asked questions
Why should investors care about this?
For investors, tax is one of the few costs that can be managed, and after-tax returns are the ones that matter.
What is the quickest way to calculate it?
Use the Bonus Tax Calculator: enter your figures and it shows the result and the formula.
Is this tax advice?
No. It is general information for planning. Rules differ by country and change over time, so confirm with your tax authority or a qualified adviser.
This article is general information for planning, not tax advice. Rates and rules change; confirm with your tax authority or a qualified adviser.