How to Prepare and File a Kansas Tax Amendment

amend Kansas taxes
Kansas
“The Sunflower State“

If you need to change or amend an accepted Kansas State Income Tax Return for the current or previous Tax Year you need to complete Form K-40. Form K-40 is a Form used for the Tax Return and Tax Amendment. You can prepare a 2019 Kansas Tax Amendment Form (to be added) on eFile.com, however you can not submit it electronically. In comparison, the IRS requires a different Form - Form 1040X -to amend an IRS return (do not use Form 1040 for an IRS Amendment).

The IRS might send you a notification to change an error on your Return, or you might have discovered an error. If you or the IRS amended or changed one of your IRS Tax Return(s), the IRS will report this to the Kansas Tax Agency, thus you should file a Kansas Tax Amendment within one year.

Function
Description
Prepare only a KS State Return without an IRS return. Details
Step by Step instructions on how to only Prepare and Download - not eFile - State Returns on eFile.com.
File a 2019 Kansas Tax Amendment
You can not eFile a KS Tax Amendment anywhere, except mail it in. However, you can prepare it here on eFile.com.
Option 1: Sign in to your eFile.com account, modify your Return and download/print the KS Form K-40 under My Account. Mark the check box "Amended Return" sign the form and mail it to one of the addresses listed below.
Option 2: If you don't have an eFile.com account follow the step by step instruction on how to prepare a tax return/amendment.
Option 3: If you want to do the math on your own paper return then complete, sign KS Form K-40 (to be added) - Print, Mail the Form to KS Tax Department to:
Amendment Return:
Kansas Income Tax
915 SW Harrison St.
Topeka, KS 66699-1000
KS Tax Amendment Form K-40
This Form can be used to file an: Income Tax Return, Tax Amendment, Change of Address. Check the proper check box on the Form.
Step 1: Select the KS Form K-40 by Tax Year below
Step 2: Sign, Mail Form K-40 to one of the addresses listed above
Tax Year 2019 only: Prepare online on eFile.com until Oct. 15, 2020. When done Print, Sign and Mail in - not eFile - Your Tax Amendment, Address Change etc.
Important:After Oct. 15, 2020 you can complete and sign tax forms online here on eFile, before you download, print and mail them to the state tax agency - Form K-40 (to be added).
How to correct a rejected Tax Return
If your KS Tax Return was rejected by the KS Tax Agency - not eFile.com - instructions on how to correct a rejected Kansas Tax Return.
For all Tax Years prior to 2019 Prepare, Print, Sign and Mail-In - see address above - your Tax Amendment by Tax Year as soon as possible. You will also file an IRS Tax Amendment Form 1040X.
Check Your KS Tax Amendment Status
1. Call the Kansas Department of Taxation at (785) 368-8222
2. Contact the KS Dep. of Taxation
Kansas Refund Deadlines
A. Three years from the due date of the original tax year return, including valid filing extensions.
B. One year from the final determination of the amended federal return or federal change, whichever is later, provided that the allowable refund is not more than the decrease in Kansas tax attributable to the federal change or correction.
C. Two years from the payment of an assessment, provided the amended return raises issues relating only to the prior assessment and the refund does not exceed the amount of tax paid on the prior assessment.
D. Two years from the filing of an amended Kansas return resulting in the payment of additional tax, provided that the current amended return raises issues relating solely to the prior amended return and that the refund does not exceed the amount of the tax payment made as a result of the prior amended return.
Additional Kansas Tax Income Taxes Deadlines
Kansas Income Tax Penalties
Find out how Kansas Late Filing and Late Payment Penalties are calculated.
For IRS Tax and Late Filing Penalties we have an easy to use tool: The PENALTYucator.
File an IRS Tax Amendment by Tax Year
Instructions on how to prepare an IRS Tax Amendment on eFile.com, however the IRS does not accept Tax Amendments electronically.