ClearYear/Calculators

Tax timing

Bonus Withholding Gap Calculator

Compare flat bonus withholding with your estimated real marginal tax rate.

Use this for

  • annual bonuses
  • commission checks
  • large supplemental wages
Flat withholding$11,000
Expected tax on bonus$20,000
Possible tax gap$9,000
Estimated after-tax bonus$30,000

Add state and payroll effects into your estimated full rate if you want a tighter estimate.

Quick facts

Keep the estimate grounded.

Flat federal supplemental withholding is not the same as final tax.

High earners can owe more at filing.

State withholding can change the picture.

Next tools

Useful follow-ups

Stock compRSU tax gapTax timingWithholding catch-upSelf-employed1099 set-aside