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Bonus tax calculator Wisconsin
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  • 1

    Pay Details

  • 2

    Exemptions

  • 3

    Federal Information

  • 4

    State Information

  • 5

    Locale Information

  • 6

    Voluntary Deductions

  • 7

    Calculate Paycheck

Calculate a flat bonus for your employee in seconds

Our flat bonus calculator can help you find the correct amount of federal and state taxes to withhold in a few clicks. Simply click the button below, enter your employee’s gross bonus amount on the next page, and we’ll do the work.

How much did your employee earn?

Bonus: Enter the total bonus pay your employee has earned this year. This is the amount of their bonus before taxes and deductions are withheld.

Gross Pay YTD: Enter the total gross pay your employee has earned this year, prior to this paycheck. Normally, this can be found on the last pay stub.

Check Date: Enter the check date that should appear on your paycheck.

Is your employee exempt from any taxes?

Federal: In some cases, public and governmental employees are exempt from federal taxes. Check “yes” if your employee is exempt and Federal taxes should not be deducted.

FICA: In some cases, public and governmental employees are exempt from FICA. Check “yes” if your employee is exempt and FICA taxes should not be deducted.

Medicare: In some cases, public and governmental employees are exempt from Medicare taxes. Check “yes” if your employee is exempt and Medicare taxes should not be deducted.

Please enter your employee’s withholding information.

Additional Federal Withholding: If your employee has asked to have additional funds withheld from each paycheck, enter the amount here. If they have not, enter “0”.

Round Federal Withholding: Would you like us to round your employee’s withholding totals to the nearest dollar? (It’s not required, but it is permitted)

Now, add information for their state.

State: Select the state where withholding should be calculated. It should be the same state where the work was performed.

Now, add locale information if applicable.

Does your employee have any voluntary deductions?

Please add any additional deductions for items like health insurance, 401(k), HSAs/FSAs, or any other benefits.


Select type of deduction needed:

401(k)

Add deduction

HSA

Add deduction

Custom

Add deduction

Let’s finish crunching the numbers!

Click the button below to see your paycheck calculated.

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Updated: July 2, 2025

The Wisconsin bonus tax calculator at the top of this page helps employers quickly estimate employee take-home pay (also known as net pay) for bonuses.

Does Wisconsin tax bonuses?

Yes. Wisconsin treats bonuses as taxable income and includes them in gross wages for withholding purposes.

How to calculate bonus tax in Wisconsin

Use Wisconsin’s withholding tables to calculate tax on the combined total of regular wages and bonus pay. Bonuses are typically combined with regular wages and taxed using Wisconsin’s standard withholding tables. If you pay supplemental wages (like bonuses, commissions, or overtime) at the same time as regular wages, calculate withholding as if the total were a single wage payment.

 

If the bonus is paid separately, you can:

  • Add the bonus to regular wages from either the current or most recent prior pay period in the same calendar year, calculate withholding on the total, then subtract what’s already been withheld from regular wages.

 

Alternative method:
Wisconsin also allows employers to calculate withholding on supplemental wages only using specific flat percentage rates based on the employee’s estimated annual gross income:

  • 3.54% for income under $12,760
  • 4.65% for $12,760 to under $25,520
  • 5.3% for $25,520 to under $280,950
  • 7.65% for $280,950 and up

 

Example:
If an employee earning $300,000 annually receives a $5,000 bonus, the flat rate for their income level is 7.65%.

  • $5,000 × 7.65% = $382.50 withheld for Wisconsin state tax.

 

The employee would receive $4,617.50 before accounting for federal tax and other deductions.

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How do bonuses work in Wisconsin?

Bonuses must be included in gross income, withheld appropriately, and reported on W-2s.

 

What is the bonus tax rate in Wisconsin?

Rates range from 3.5% to 7.65%

 

How can employers in Wisconsin pay bonuses to employees?

Bonuses in Wisconsin can be paid via:

  • Check
  • Direct deposit
  • Pay card

How much tax is taken out of a bonus in Wisconsin?

Up to 7.65% state + 22% federal = 29.65%

 

Why are bonuses taxed differently than standard pay?

They aren’t — same rules apply to all wages.

 

More resources for Wisconsin employers

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