Open Book/Board of Review Calendar

​​​​The Open Book/Board of Review Calendar lists the Open Book and Board of Review dates a municipality provides the Wisconsin Department of Revenue. For your convenience, it also contains local clerk and assessor contact information. There are two separate portals, one for property owners and one for municipalities.

Each municipality in Wisconsin must hold an Open Book and Board of Review (BOR) session.

Open Book and Board of Review sessions generally take place late May to mid-June; however, some may occur later.

For more information, review the Guide for Property Owners.

Property Owner Lookup

Look up: Open Book, BOR, local Clerk and Assessor information

Lookup - ​2024​ information

Municipality Access

Enter: Open Book and BOR information

Access - 2024​ calendar

Note: You must be authorized by the municipal clerk to enter information in the calendar. Review MyDORGov information.