You can notify DOR by mail. Steps include:
Taxpayer Information Changes Wisconsin Department of Revenue PO Box 8949 Madison, WI 53708-8949
When completing the form, include:
You can notify the Wisconsin Department of Revenue in one of the following ways:
Name Change & FEIN Change
Note: A corporation, limited liability company filing as a corporation or partnership, or limited partnership that is required to register with the Wisconsin Department of Financial Institutions (DFI) may change its name by writing to the Wisconsin Department of Financial Institutions, PO Box 7846, Madison, WI 53707-7846 or calling (608) 261-7577.
Send changes to DOR using one of these methods:
You must include:
If you have questions on how to update contact information for
government officials, contact us at (608) 266-8207.
To sign up for one of the department's email distribution lists, visit
Subscribe to DOR E-News.
This form is only for government entities. Businesses must update their bank information through
My Tax Account.
MS 5-77WISCONSIN DEPARTMENT OF REVENUE Customer Service Bureau PO Box 8949 Madison, WI 53708-8949 Phone: (608) 266-2776 Fax: (608) 327-0232 Email additional questions to
December 9, 2019