Overview
Kansas uses a progressive income tax with brackets that vary by filing status. The state has its own withholding guide (KW-100) and uses personal allowances whose values depend on the employee’s filing status.
What Makes Kansas Unique: Kansas uses a two-bracket progressive income tax and requires employees to complete Form K-4 for state withholding. The top rate is 5.7%.
State Income Tax (SIT)
Kansas imposes a progressive state income tax. Employees complete Form K-4 to specify their filing status (Single or Joint) and total allowances. Personal allowance values vary depending on the filing status. Kansas also uses prorated calculations for multi-state employees.
| Tax Structure | Progressive with brackets varying by filing status |
| State Withholding Form | Form K-4 |
| Filing Statuses | S (Single), MJ (Joint) |
| Supplemental Rate | 5% |
| Multi-State | Uses prorated calculation for multi-state employees |
Supplemental Wages
Kansas supports the following supplemental calculation methods. When using the flat method, the supplemental rate is 5%.
Employer State Unemployment Tax (SUTA)
Your assigned SUTA rate will be based on your company’s experience with unemployment claims. New employers typically start at the default rate of 2.7%.
| Tax Type | Employer-paid only |
| Default New Employer Rate | 2.7% |
| Rate Assignment | Experience-rated; assigned annually by the state |
How to Set Up Kansas Payroll Withholding
Follow these steps to begin withholding Kansas payroll taxes for your employees:
- Obtain your Federal EIN at irs.gov
- Register with the Kansas Department of Revenue at ksrevenue.gov
- Register for SUTA with the Kansas Department of Labor at dol.ks.gov
- Submit a Netchex tax team request to enable Kansas SIT and SUTA
- Have each employee complete their tax forms with an automated onboarding task in Netchex, digitally storing tax forms
- Configure any additional tax settings in the employee profile
Once setup is complete in Netchex, the system will automatically calculate, withhold, and remit all Kansas payroll taxes on your behalf.
Kansas Payroll Tax Filing Deadlines
The following are general filing and deposit deadlines for Kansas payroll taxes. Deadlines may vary based on your employer size and deposit frequency. Always verify current schedules at Kansas Department of Revenue.
| Tax | Deposit Frequency | Typical Due Date |
| SIT Withholding | Monthly | 15th of the following month |
| SIT Withholding | Quarterly | Last day of month following quarter |
| Annual Reconciliation (KW-3) | Annual | January 31 |
| SUTA | Quarterly | April 30, July 31, Oct 31, Jan 31 |
Note: Deadlines are subject to change. Always confirm current requirements directly with Kansas Department of Revenue at https://www.ksrevenue.gov/bustaxtypeswithhldtax.html.
Resources & Links
The following official resources will help you stay current on Kansas payroll tax requirements:
Frequently Asked Questions: Kansas Payroll Taxes
What is Kansas’s top income tax rate?
Kansas’s top income tax rate is 5.7% (on income over $30,000 for single filers).
What form do Kansas employees complete?
Employees complete Kansas Form K-4, the Kansas Employee’s Withholding Allowance Certificate.
What is Kansas’s SUTA wage base?
Kansas’s SUTA wage base is $14,000 per employee per year. Verify at dol.ks.gov.
Does Kansas have local payroll taxes?
No. Kansas does not impose local payroll taxes.
What is Kansas’s supplemental withholding rate?
Kansas uses the employee’s regular withholding rate for supplemental wages.
Disclaimer: This content is provided for general informational purposes only and does not constitute legal, tax, or accounting advice. Netchex does not provide tax or legal guidance and makes no representations regarding the accuracy or applicability of this information. Laws and regulations may change. The information on this page reflects payroll tax guidelines as of March 2026. For the most current requirements, please refer to the Resources & Links section above.
Let Netchex Handle the Complexity
Staying compliant with payroll taxes doesn’t have to be stressful. Netchex automatically calculates, withholds, and files your payroll taxes so you can focus on what matters most — your people.
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