If you need to make a change to an already accepted Wisconsin state return, you must file an amended return.
How do I generate an amended return for Wisconsin?
Once you have accessed the tax year in the program, generate the amended state return by following the steps below:
- Select "2025 Amended Return" from the left-side navigation bar
- Pay for your amended return
- Read the "Filing an Amended Return" page, then press "Continue"
- Select "Amend State Return(s)"
- Select the three dots (…) and "Amend State" from within the white box
- Scroll to the bottom of your state return menu and select Amended Return - "Begin"
- Complete the applicable sections below, then press "Continue"
- In the “Reasons for Amending” section, a reason must be chosen or select “Other” and type your reason on the "Detailed Explanation of Reason for Change" page, enter the line number from your original return, and press “Continue” to save
- At the bottom of the WI amended return page, press “Continue” again and press “Back”
- Scroll to the bottom of the state return menu and press “Exit Wisconsin Return”
What if I originally owed state taxes?
If you made a tax payment after your original state return was accepted, you must report it on your amended return, so the amount is included in your calculations. To do so, follow the pathway above to navigate to the Amended Return section of your state return. Next, select “Amended Return” and enter your payment amount in the section labeled "Payment Information."
What if I received a refund from my original Wisconsin return?
If you received a refund from the state, you must report the amount on your amended return, so it is included in your amended return's calculation. To do this, follow the pathway above to navigate to the Amended Return section of your state return. Next, select “Amended Return” and enter your refund amount in the section labeled "Refund Information."
How do I file my amended Wisconsin return?
Amended state returns must be paper filed. To print your state amended return, select "Print Amended Return - Begin” from the "Amended Tax Return - Form 1040X" page followed by “Print”. Your amended state return will be generated as a PDF and is located at the end of the document. Simply print, sign, and mail your amended Wisconsin return to paper file it.
Only the amended return (not the originally filed return) and copies of supporting documents (W-2’s, 1099’s, etc.) that support the reason for the change to the tax return need to be mailed unless the state or IRS specifically ask for other documents. View and compare your original and amended return documents to see the changes.
The state amended return mailing address can be found on the printed form and state department of revenue website. The address to mail the return may differ if you are receiving a refund or making a payment with your return.
Additional Information
When you file an amended return, you must provide an explanation regarding what you have changed. Please make sure to provide your explanation when completing your amended return(s) within the state amended menu.
Note: The purchase of an amended return is nonrefundable.