INSTRUCTIONS: AMENDED RETURN WISCONSIN INCOME TAX (Form 1X)

Wisconsin individuals who need to amend their initially filed income tax return do so with a form 1X. This document can be obtained from the website of the Wisconsin Department of Revenue. You will also need to obtain the separate instructions booklet for this form, available on the same website.

Amended Return Wisconsin Income Tax 1X Step 1: If not filing on a calendar year basis, enter your fiscal year beginning and ending dates at the top of the form.

Amended Return Wisconsin Income Tax 1X Step 2: Give your legal name and Social Security number. If filing jointly with your spouse, provide the same information concerning them. Give your current address.

Amended Return Wisconsin Income Tax 1X Step 3: Indicate your filing status on both your original and amended return with a check mark.

Amended Return Wisconsin Income Tax 1X Step 4: Lines 1 through 6 provide instructions for computing your initial tax owed. To complete line 7, you will first need to complete Schedule 1 on the fourth page. Follow the computation instructions and transfer the number from line 9 to line 7 on the first page. This is only if you are claiming itemized deductions.

Amended Return Wisconsin Income Tax 1X Step 5: Lines 8 through 17 concern the documentation of various credits and alternative minimum tax.

Amended Return Wisconsin Income Tax 1X Step 6: Line 18 is only for married spouse claiming a married couple credit. To fill in this line if applicable, you will need to first complete Schedule 2 on the first page. Transfer the value from line 8 there to line 18 on the second page.

Amended Return Wisconsin Income Tax 1X Step 7: Lines 19 through 40 contain instructions for further calculations adjusting your tax owed on the basis of credits, donations and taxes withheld from wages.

Amended Return Wisconsin Income Tax 1X Step 8: Lines 41 through 49 on the third page provide final instructions to determine if you have overpaid and are due a refund or have underpaid and must pay a penalty and interest.

Amended Return Wisconsin Income Tax 1X Step 9: Consult the instruction booklet and enter the codes explaining each change between your initial and amended return. Below this, provide a written explanation with references to each amended line. Sign and date the third page.