Kansas Taxes Pages

Kansas Income Tax Extension

Should I file an Kansas Tax Extension?

Points to consider when preparing a KS extension.

Extension Situation
Extension Suggestion
Kansas Tax Refund

Option 1: If you do not owe KS taxes and don't expect a refund, you don't need to file a KS tax extension. Also, if you expect a KS tax refund, you must file your KS tax return to receive it.

Option 2: If you have e-filed a federal tax extension and do not anticipate owing Kansas income tax or receiving a refund by the state tax deadline, your federal extension will be automatically accepted as a state extension. There is no need to submit Form K-40V.

Owe Kansas Taxes

Option 1:Pay your Kansas income taxes online at the Kansas Tax Payment Portal.

Option 2: If you owe KS income taxes, you will either have to submit a KS tax return or extension by the tax deadline in order to avoid late filing penalties. You can only eFile an IRS tax extension, but not an Kansas extension. The tax extension will only avoid late filing penalties until the October deadline.
Note: Failure to pay taxes due or electronically file a tax return by the October deadline will result in late filing penalties.

Option 3: Complete Form K-40V, include a check or money order, and mail both to the address provided on Form 40V.

Important: Even with an extension, you must e-file or mail your KS tax return by the October deadline.

Kansas Income Tax Calculator
Kansas Tax Deadlines
Tax Penalties
Important: If you owe Kansas and/or IRS income taxes and do not file an IRS and Kansas tax return or extension by the Tax Due Date, you will be subject to IRS and KS late filing penalties. Estimate IRS late filing, payment penalties. In addition, if you do not pay your taxes by the Tax deadline, you will be subject to late tax payment penalties. Filing an extension on time will ONLY eliminate the late filing penalties but not the late tax payment penalties. Late filing penalties are generally higher than late payment penalties, thus file something on time even if you can't pay anything on time!
Taxpert®
Discuss your extension questions and goals with a Taxpert for free and we will guide you through the process.

Frequently Asked Questions

What is a KS tax extension?

A Kansas tax extension grants a 6 months extension from the original tax due date.

You will need to e-file a tax extension on or before April 15, 2025.

No, if you do not anticipate owing Kansas income taxes or you will receive a KS tax refund by the tax deadline, you are not required to file for a KS tax extension.

Here are the different options to file a KS Extension:

  1. Pay all your KS online via: Kansas Tax Payment Portal.
  2. You will either have to submit a KS tax return or extension by the tax deadline.
  3. Complete Form K-40V, include a Check or Money Order.

No, if you have eFiled a federal extension and do not owe Kansas income taxes by the tax deadline, your accepted federal extension will serve as your state extension.

The late filing penalty is 5% of the amount due, calculated from the original due date of your tax return. This penalty applies for each month or partial month that the amount remains unpaid, after accounting for any payments or credits made by the original due date. The maximum penalty is capped at 25% of the total amount due.

  • Note: a tax extension is an extension to file, not payments owed.

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