Filing deadlines approaching

March 9, 2020

To: Gross Revenue Taxpayers, Ad Valorem Taxpayers

The Wisconsin Department of Revenue (DOR) would like to remind you of the upcoming filing deadlines.

March 16

Report due by March 16, 2020

April 1

Reports due by April 1, 2020 (Extended Due Date)

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