Salary After Bonus Calculator
Calculate your net take-home bonus after federal supplemental tax (22%), state tax, and FICA withholding. Compare flat amount versus percentage-based bonuses.
Tax Rates
IRS supplemental: 22% (or 37% over $1M)
Optional. Pre-tax contribution reduces taxable bonus.
Enter salary and bonus details, then click calculate.
What This Calculator Does
This calculator estimates your net take-home from a bonus after all applicable tax withholdings. The IRS treats bonuses as supplemental wages, which are typically withheld at a flat 22% federal rate (37% on amounts over $1 million). This tool shows the net bonus after federal, state, and FICA deductions.
The Formula
Federal tax on supplemental wages is withheld at 22% (flat rate method) or at your marginal rate (aggregate method). State tax rates vary by jurisdiction. FICA includes 6.2% Social Security (on wages up to $176,100 in 2026) and 1.45% Medicare. Optional pre-tax retirement contributions reduce the taxable portion.
Step-by-Step Example
Enter salary and bonus
Base salary: $85,000. Bonus: $12,000 (14% of salary).
Calculate federal tax
IRS supplemental flat rate: $12,000 x 22% = $2,640.
Add state and FICA
State (5%): $600. FICA (7.65%): $918. Total deductions: $4,158.
Review net bonus
Net bonus: $7,842. Effective tax rate on bonus: 34.7%.
Real-World Use Cases
Compensation Evaluation
When comparing job offers, calculate the actual take-home value of each bonus structure.
Tax Planning
Determine whether to contribute your bonus to a pre-tax 401(k) to reduce the tax impact.
Budget Planning
Know exactly how much of your bonus will hit your bank account before making spending plans.
Common Mistakes to Avoid
Thinking bonuses are taxed at a higher rate than salary. The 22% flat withholding rate is often different from your actual marginal rate. The difference is reconciled when you file your return.
Forgetting FICA on bonuses. Social Security (6.2%) and Medicare (1.45%) are withheld from bonus payments just like regular wages.
Not considering a 401(k) contribution on the bonus. Contributing part of your bonus pre-tax reduces the taxable amount and builds retirement savings.
Ignoring the $1 million threshold. Bonuses exceeding $1 million in a calendar year are withheld at 37% federal on the excess above $1 million.
Frequently Asked Questions
Accuracy and Disclaimer
Tax withholding on bonuses depends on your employer method (flat rate vs aggregate) and your specific tax situation. This calculator uses the flat rate method. Actual tax liability is determined on your annual return.
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