2021 Forms Available

January 14, 2021

To: Gross Revenue Taxpayers, Ad Valorem Taxpayers

The 2021 online forms are now available on the Wisconsin Department of Revenue website. Important filing dates and information are listed below.

February 15, 2021 – forms due

March 1, 2021 – reports due

March 15, 2021 – report due

To request an extension

Note: DOR will apply a non-appealable late filing penalty to all reports filed after the due date with no extension.

If you have any questions, contact us at utility@wisconsin.gov.