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Employee Bonus Calculator (Gross & Net Pay)

Calculate your gross bonus payout, estimate taxes and FICA statutory deductions, and determine your exact net take-home bonus pay.

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Employee Bonus Calculator (Gross & Net Pay)

Calculate your gross bonus payout, estimate taxes and statutory deductions, and determine your exact net take-home bonus pay.

Quick Bonus Presets Click to load scenario
22% Supplemental
Estimated Net Take-Home Bonus
$5,979.75 29.65% Total Deductions
Gross Bonus Payout $8,500.00
Income Tax Withheld -$1,870.00
FICA & Other Deductions -$650.25
Total Deductions -$2,520.25
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User Guide & Documentation

How to use Employee Bonus Calculator (Gross & Net Pay)

How to Calculate Your Net Take-Home Bonus

The Bonus Calculator estimates your actual take-home pay after federal, state, and statutory tax withholdings. Employers often pay bonuses as a percentage of base salary or as a flat cash amount. Because bonuses are classified by the IRS and tax authorities as supplemental income, they are often subject to a statutory withholding rate (such as the standard 22% federal supplemental rate plus 7.65% FICA).

Step-by-Step Instructions:

  1. Choose Your Bonus Structure: Select either Percentage of Salary (%) or Fixed Lump Sum Amount ($).
  2. Enter Base Salary or Fixed Bonus: Input your annual base salary and target percentage (e.g. 10% on $85,000) or enter a lump sum award (e.g. $5,000).
  3. Set Withholding Tax Rate: Enter your estimated income tax rate (default 22% for standard supplemental wage withholding).
  4. Include Statutory Deductions: Check or uncheck FICA Taxes (7.65%) and optional 401(k) / Retirement Contributions (5%).
  5. Instant Breakdown: The calculator immediately provides your Net Take-Home Bonus, gross payout, total tax withheld, and effective deduction percentage.

How Are Bonuses Taxed?

In the United States and most jurisdictions, bonuses are considered supplemental compensation. Employers typically use one of two tax withholding methods:

1. Flat Percentage Method (Standard 22%)

The most common method: the employer withholds a flat 22% for federal tax on bonuses up to $1 million, plus 7.65% for FICA (Social Security and Medicare), resulting in roughly 29.65% total federal deduction before state taxes.

2. Aggregate Method

The employer combines your bonus with your regular paycheck and withholds taxes according to your standard W-4 bracket. If this pushes you temporarily into a higher tax bracket, any excess withholding is refunded at tax filing time.

Frequently Asked Questions

Why is my bonus taxed higher than my regular paycheck?

Bonuses are withheld at the flat supplemental rate of 22% (or higher under the aggregate method), which may be higher than your average effective payroll withholding rate. However, your actual tax liability is reconciled when you file your annual tax return.

What is FICA tax on a bonus?

FICA consists of 6.2% Social Security (up to the annual wage cap) and 1.45% Medicare (no wage limit), totaling 7.65% deducted from the gross bonus.

How much do I take home from a $10,000 bonus?

Under the standard 22% federal supplemental rate + 7.65% FICA (29.65% total), you will take home approximately $7,035.00 before state and local taxes.

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