How to Change Your Address, Name, or Taxpayer Identification Number


​​​Contact Us

MS 5-77
Wisconsin Department of Revenue​
Customer Service Bureau
PO Box 8949
Madison, WI 53708-8949
Phone: (608) 266-2776
Fax: (608) 267-1030
Email: ​ ​ DORBusinessTax@wisconsin.gov

February 11, 2021​