Bonus Tax Calculator 2025 – Calculate Your Bonus After Taxes
Accurate federal tax calculations with current IRS rates and thresholds
📊 Enter Your Information
Fill in the bonus amount and required information on the left to see your detailed tax breakdown and net take-home amount.
⚠️ Important Disclaimer
This calculator provides estimates based on current 2025 federal tax rates and should not be used as the sole basis for tax planning or payroll decisions. For 2025, the Social Security wage base is $176,100, and Social Security tax rate is 6.2% each for employee and employer, with Medicare tax at 1.45% each. Additional Medicare tax of 0.9% applies to wages over $200,000 regardless of filing status for withholding purposes. Consult with a qualified tax professional or payroll service for actual payroll processing. State tax rates vary significantly by location and may include additional considerations not captured here.
Bonuses are taxed as supplemental wages in the United States. In 2025, most employers withhold 22% federal tax on bonuses under $1 million, plus Social Security (6.2%), Medicare (1.45%), and any state income tax.
Use our Bonus Tax Calculator 2025 to see exactly how much you’ll take home after all deductions.
How Bonuses Are Taxed in 2025
Bonuses are taxed differently from regular wages.
The IRS allows two methods:
- Flat Percentage Method: 22% federal withholding (37% for bonuses over $1M) + payroll taxes + state tax.
- Aggregate Method: Bonus added to paycheck and taxed at your usual income tax rate.
Note: Your final tax bill at year-end may be higher or lower than the withholding.
How to Use the Bonus Tax Calculator
- Enter your bonus amount (before taxes).
- Select your state to account for local taxes.
- Choose your filing status (single, married, etc.).
- Click Calculate to see your estimated federal, state, Social Security, and Medicare withholdings.
- Review your net bonus amount—what you’ll actually receive.
Quick Example – $10,000 Bonus in California (Single Filer)
| Tax Type | Rate | Amount Deducted |
|---|---|---|
| Federal | 22% | $2,200 |
| Social Security | 6.2% | $620 |
| Medicare | 1.45% | $145 |
| California Tax | 9.3% | $930 |
| Net Bonus | — | $6,105 |
Result: You’d keep about 61% of your bonus.
Steps to Calculate Your Bonus After Taxes
- Enter your gross bonus amount.
- Select your state to include local taxes.
- Choose your filing status.
- Click Calculate to see federal, state, Social Security, and Medicare deductions.
- Review your net bonus.
Tips to Keep More of Your Bonus
- Contribute to 401(k) or IRA from your bonus to reduce taxable income.
- Adjust your W-4 temporarily if withholding seems too high.
- Time your bonus in a year with lower overall income.
- If self-employed, set aside tax savings before spending your bonus.