Individual Income Tax - Amended Returns

  1. How do I amend my Wisconsin income tax return?

  2. How long do I have to amend my Wisconsin income tax return to request a refund?

  3. The Internal Revenue Service (IRS) has adjusted my federal income tax return. What should I do for Wisconsin?

  4. What documentation do I need to submit with my amended Wisconsin income tax return?

  5. If I submit documentation with my amended Wisconsin income tax return, will this expedite the processing of my amended return?

  6. Should I submit a complete copy of my original and amended federal income tax returns and my original Wisconsin income tax return with my amended Wisconsin income tax return?

  7. I am amending my Wisconsin income tax return to increase/reduce my income. Are there any other changes that I need to make on my amended return?

  8. I am amending my Wisconsin income tax return to report additional income. Should I pay the additional tax with the amended return?

  9. I am filing an amended return and expect a refund. Will I receive interest on the tax refunded to me?

  10. Can I electronically file my amended return?


FOR MORE INFORMATION PLEASE CONTACT:

MS 5-77
WISCONSIN DEPARTMENT OF REVENUE
Customer Service Bureau
PO Box 8949
Madison, WI 53708-8949
Phone: (608) 266-2772
Fax: (608) 267-1030
Email additional questions to DORIncome@wisconsin.gov

October 24, 2018