Individual Income
Kansas residents and nonresidents of Kansas earning income from Kansas sources are required to annually file an income tax return, K-40. Kansas income tax conforms to many provisions of the Internal Revenue Service. You will need to complete your federal income tax return prior to completing your Kansas K-40. Various electronic methods are available to both file and pay your Kansas income tax.
Links to Individual Income Information:
- Certain Government Payments (1099-G)
- Electronic Services
- Forms
- Frequently Asked Questions
- Payment Plan Requests
- Penalty and Interest
- Publications
- Refund Status Online - Individual Income/Food Sales and Homestead
- Rural Opportunity Zone Tax Credit
- Servicemember Civil Relief Act
- Attention – Individuals making contributions to KPERS
FORMS AND PUBLICATIONS - Individual Income (Current year)
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- Important Information for the 2019 tax year
- File Electronically - Safe, secure, fast and free
2021 Forms:
- Individual Income Tax (K-40) Original and Amended - 2021
- Individual Income Tax Kansas Itemized Deductions (Schedule A) - 2021
- Individual Income Tax Supplemental Schedule (Schedule S) - 2021
- Kansas Payment Voucher (K-40V) - 2020
- Individual Underpayment of Estimated Tax Schedule and instructions (K-210) - 2021
- Individual Income Tax Return Mailing Addresses
- Credit Schedules
2021 Instructions:
Individual Estimated Tax:
- 2022 Individual Estimated Income Tax Vouchers, Worksheet and Instructions (K-40ES)
- 2021 Individual Estimated Income Tax Vouchers, Worksheet and Instructions (K-40ES)
- Individual Underpayment of Estimated Tax Schedule and instructions (K-210) - See above or in year needed. For years not listed, please click the following link - Email here to order any Kansas tax form not available on this site
- Notice - Pay Estimate Tax Electronically
Miscellaneous Individual Income
- School District Listing
- Claim to Support Withholding Tax Credit (IA-81)
- Composite Income Tax Schedule (K-40C)
- Decedent Refund Claim (RF-9)
- Employees Withholding Allowance Certificate (K-4)
- Homestead-Foods Sales Tax Credit (CR-20)
- Kansas Individual Income Tax Instructions for Armed Forces Personnel (IA-36)
- Questionnaire of Earnings Allocation (IA-22)
- Credit Schedules