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If you have already registered your business with the Wisconsin Department of Revenue (DOR), you may sign up for My Tax Account to file and pay your business taxes. If you need to register your business with us, use our online Wisconsin Business Tax Registration.
If you are a business owner (owner of a corporation, partnership, LLC or a sole proprietorship) or a business employee, select option (1) below.
If you are a third party preparer (an independent accountant or an owner or employee of an accounting firm), select option (2) below.
FOR MORE INFORMATION, PLEASE CONTACT:
WISCONSIN DEPARTMENT OF REVENUE
Customer Service Bureau
Mail Stop 5-77
PO Box 8949
Madison, WI 53708-8949
Phone: (608) 261-5338
Fax: (608) 267-1030
Page last updated January 21, 2014