Kansas State Tax Extension
Filing an Extension in Kansas
The Kansas Department of Revenue does not have an extension request form; however, you may be granted an extension of time to file if you are unable to complete your Kansas return by the filing deadline. If you file for a federal extension requesting an automatic six-month extension of time to file your federal tax return, Kansas will automatically grant you a six-month extension of time to file your Kansas return. A copy of form 4868 must be included with your Kansas income tax return when filed.
To pay the tax balance due for an extension, use the Kansas Payment Voucher (Kansas Form K-40V). Check the box on the Form K-40V indicating extension payment. If you do not pay the tax due (may be estimated) by the original due date, you will owe interest and penalty on any balance due.
An extension to file your return is not an extension of time to pay your taxes.
If You Owe
To avoid penalties and interest, you must pay your 90% of your current year tax liability, or 100% of your 2019 tax liability by April 15, 2021. If you are not able to pay the full amount due, you should file your Kansas income tax return and pay as much as you can by the filing date. Penalties and interest will accrue on any unpaid balance until fully paid. To pay the tax balance due for an extension, use the Kansas Payment Voucher (K-40V). Check the box on the Kansas Form K-40V indicating extension payment. If you do not pay the tax due (may be estimated) by the original due date, you will owe interest and penalty on any balance due.
Pay your taxes online at the Kansas Department of Revenue Self Service Payment Center.
You can also pay online at Official Payments Corporation. Visa, MasterCard, Discover Network, and American Express credit and debit cards, and other forms of payment, such as Bill Me Later® are accepted. To make a debit card payment you can use a MasterCard or Visa Debit Card or any debit card with Nyce, Pulse or Star logos.
There is a convenience fee for this service which is paid directly to the company. The amount of the fee is based on the amount of your payment.
Pay by Phone
Pay your taxes by phone by calling Official Payments toll-free at 1-800-272-9829. This automated service is available 24 hours, 7 days a week. At the end of your call you will be given a confirmation number. Write down and save it as proof of payment for your records.
There is a convenience fee for this service which is paid directly to the company. Save this as proof of payment for your records.
Pay by Mail
Along with the payment voucher, send a check for the full amount of the tax due made payable to Kansas Income Tax. Write your Social Security number on the front of your payment. Do not attach the payment voucher or payment to your return or to each other. Place them loosely in the envelope with your return. If you have already mailed your return, or you filed electronically and didn’t pay electronically, mail your payment and the voucher to:
Kansas Income Tax
Kansas Department of Revenue
915 SW Harrison St
Topeka, KS 66612-1588
Penalty and Interest Charges on Tax Owed
Those who do not pay at least 90% of the amount due on or before April 15, 2021 will be charged interest on the unpaid balance. There are exceptions:
- The amount of tax paid on or before April 15, 2021 is greater than, or equal to 100% of the total tax liability on your prior year return.
- If 90% of tax liability is paid on or before April 15, 2021, no penalty is assessed. Those who do not file for an extension, or file late are also charged a substantial late filing penalty.
- Late Payment and Late Filing Penalty: A penalty of 1% of the unpaid balance, for each month (or portion thereof) from April 15, 2021 until the return is filed. The maximum penalty is 24%.
- Interest on the unpaid balance is computed at 0.333% per month or portion thereof from April 15, 2021.
If You Do Not Owe
If you are entitled to a refund from Kansas there is nothing to be filed, an extension is not required.
For more information, visit the Kansas Department of Revenue.