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The Kansas Department of Revenue made a few changes for tax year 2025:
These are the supported Kansas state tax forms on FreeTaxUSA:
Form K-40
Kansas Individual Income Tax
Schedule S
Kansas Supplemental Schedule
Schedule A
Kansas Itemized Deductions Schedule
Form K-40H
Kansas Homestead Claim
Form K-40PT
Kansas Property Tax Relief Claim for Low Income Seniors
Schedule CR
Kansas Tax Credit Schedule
Form K-40V
Kansas Individual Income Payment Voucher
Form K-40ES
Kansas Individual Estimated Income Tax Voucher
Form K-210
Kansas Underpayment of Estimated Tax (Individual Income Tax)
Form K-40SVR
Kansas Property Tax Relief Claim for Seniors and Disabled Veterans
Keep these Kansas state deadlines in mind as you do your taxes.
Individual tax returns
Due by April 15, 2026
Kansas tax extension
If you are entitled a refund: No extension required.
If you expect to owe KS taxes: Submit federal Form 4868 and a completed Form K-40 to automatically receive an extension.
Due by April 15, 2026
Income tax payment
Due by April 15, 2026
Tax returns for extension filers
Due by October 15, 2026
Get your Kansas refund in your bank account, on a prepaid debit card, mailed as a paper check, or put it towards next year's Kansas taxes.
If you filed your Kansas tax return electronically, you can usually check your refund status 4-5 business days after the Kansas Division of Revenue accepts your return.
If you mailed your Kansas tax return, you need to wait 16 weeks from the date you mail it to receive your refund.
Check your KS refund status online at www.kdor.ks.gov/Apps/kcsc/increfundstatus.aspx
Call the Kansas Taxpayer Assistance Center at 785-368-8222
Kansas has many income tax payment options. Find the option that works best for you below.
You can use this payment option when you e-file with us.
Kansas Department of Revenue contact information:
Phone: (785) 368-8222
Online: Kansas Department of Revenue
An extension extends the time you have to file your return by up to 6 months. If you need to pay taxes, you are required to pay the amount due by April 15, 2026.
You need to pay at least 90% of your tax liability by April 15, 2026. If you pay late, you may be charged a late penalty and interest on any unpaid taxes.
If you expect a refund from Kansas:
Automatic with an accepted federal extension. A copy of form 4868 (federal extension) must be enclosed with your Kansas income tax return when filed.
If you expect to owe Kansas taxes:
Submit a federal extension and a completed Form K-40 to automatically receive an extension. Due by April 15, 2026.
Even though the deadline has passed, you can still prepare Kansas taxes for prior years. Many people who file late tax returns have refunds waiting for them. We'll help you prepare and mail your federal and state tax returns.
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