Download Important 2021 Calendar Events

January 21, 2021

To: SLF Customers

The Wisconsin Department of Revenue (DOR) would like to inform you that you can now download important 2021 calendar items (ex: filing due dates, payment dates) to your calendar from the DOR website.

To download a calendar event:

2021 calendars currently available on the DOR website:

If you have questions, contact us at