The Kansas bonus tax calculator at the top of this page helps employers quickly estimate the net (take-home) pay employees should receive for bonus payments, using the appropriate state flat income tax rate.
Behind the numbers
Behind the numbers
Updated: July 11, 2025
Does Kansas tax bonuses?
Yes. Kansas treats bonuses as taxable wages and requires employers to withhold and remit state income tax to the Department of Revenue. Supplemental wages that are also subject to Kansas withholding include commissions, overtime pay, accumulated sick leave, severance pay, and back pay.
How to calculate bonus tax in Kansas
If the bonus is combined with regular wages, add the total and use the withholding tables based on the employee’s W-4 and income level. If the bonus is paid separately and federal withholding is calculated as a flat percentage (typically 22%), Kansas allows employers to withhold 5% of the gross bonus amount.
What is the bonus tax rate in Kansas?
Kansas uses a progressive income tax system with rates ranging from 3.1% to 5.7%, depending on income. When a bonus is paid separately, the flat 5% state withholding rate can be applied. For example, Kansas withholding on a $5,000 bonus would be $250 ($5,000 × 5%). You can use the calculator at the top of this page to run the numbers in just a few clicks.
How can employers in Kansas pay bonuses to employees?
Bonuses can be paid via:
- Check
- Direct deposit
- Pay card
Why are bonuses taxed differently than standard pay?
Kansas does not allow for a flat rate method — all withholding is based on total earnings and W-4 elections.
How much tax is taken out of a bonus in Kansas?
The amount varies based on the employee’s income. State tax ranges from 3.1% to 5.7%, plus 22% federal tax, totaling approximately 25.1% to 27.7% depending on the employee’s tax situation.
How do bonuses work in Kansas?
Bonuses are added to gross income and must be reported on W-2s like regular wages. Employers should withhold appropriately.