Quarterly Bonus Tax Calculator
Calculate taxes on quarterly and performance bonuses using IRS withholding rules.
This tool is for educational and informational purposes only and does not constitute accounting, tax, or legal advice. Consult a qualified professional for personalized advice.
Enter Your Bonus Details
Quarterly Bonus Tax Results
$0
Net Bonus After Taxes
Gross Bonus$0
Federal Income Tax (22%)$0
Social Security (6.2%)$0
Medicare (1.45%)$0
State Income Tax$0
Total Taxes$0
Net Bonus$0
Year-to-Date Total$0
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Bonus Tax Breakdown
Example Cases
Example 1: $5,000 Quarterly Bonus, $60,000 YTD, CA
Bonus: $5,000, YTD: $60,000, State: California
Result: Federal = $1,100, State = $465, SS = $310, Medicare = $72.50, Net = $3,052.50
Result: Federal = $1,100, State = $465, SS = $310, Medicare = $72.50, Net = $3,052.50
Example 2: $10,000 Performance Bonus, $100,000 YTD, NY
Bonus: $10,000, YTD: $100,000, State: New York
Result: Federal = $2,200, State = $685, SS = $429 (limited), Medicare = $145, Net = $6,541
Result: Federal = $2,200, State = $685, SS = $429 (limited), Medicare = $145, Net = $6,541
Calculation Methodology
Quarterly bonuses are subject to the same withholding rules as year-end bonuses: 22% federal income tax (flat rate), 6.2% Social Security tax (capped at $168,600), and 1.45% Medicare tax.
State income tax rates vary by state.
Frequently Asked Questions
No, quarterly bonuses are subject to the same withholding rules as annual bonuses. The IRS flat rate of 22% applies to all supplemental wages.
If your year-to-date earnings already exceed the Social Security wage base ($168,600 for 2026), no additional Social Security tax will be withheld from your bonus.
If you receive significant bonuses and the withholding is not sufficient to cover your tax liability, you may need to make estimated tax payments or adjust your W-4 withholding.
Yes, bonuses are included in your total taxable income for the year and can push you into a higher tax bracket when you file your annual return.