Kansas Personal Tax Extension 2026: 2025 Tax-Year Filing Guide
Individual Income Tax · Form K-40
Kansas generally grants an automatic extension for individual returns. Kansas accepts a federal extension but the extension does not extend payment time. For federal details, see our federal tax extension resources.
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✓ Secure e-filing✓ 24/7 filingKansas generally grants an automatic extension for individual returns. Kansas accepts a federal extension but the extension does not extend payment time.
Last updated: September 12, 2026Kansas Personal Tax Extension: Filing Details
Kansas generally grants an automatic extension for individual returns. Kansas accepts a federal extension but the extension does not extend payment time.
Quick Reference: Deadlines and Forms
Use this summary to confirm Kansas filing deadlines, forms, and payment requirements.
| Item | Kansas personal return | Deadline or method |
|---|---|---|
| Original deadline | Form K-40 | April 15, 2026 |
| Extended deadline | Automatic with Federal | October 15, 2026 |
| Return form | Form K-40 | Use the current form |
| Payment | Form K-40V | Due April 15, 2026 |
Frequently Asked Questions
Answers about Kansas personal tax extensions.
The Kansas extended filing deadline for the 2025 tax year is October 15, 2026.
Review the Kansas instructions to determine whether a federal extension or state request is required.
An extension gives more time to file, not more time to pay; pay the required amount by the original deadline.
Check the Kansas revenue or taxation department for current forms and instructions.