2020 Manufacturing and Telecommunication Notification Rolls

February 14, 2020

To: Certified Assessors, Public Assessor List, County Real Property Listers, Treasurers, Clerks, Registers of Deeds, Municipal Clerks, and Treasurers

The Wisconsin Department of Revenue (DOR) posted the 2020 notification rolls to our website.

Note: DOR no longer mails manufacturing and telecommunication notification rolls to municipalities.

Manufacturing Notification Roll

The manufacturing notification roll identifies all real estate and personal property in your municipality currently classified as Manufacturing (Class 3) for assessment purposes as of February 15th. DOR will assess the properties in the notification roll in 2020.


  • New manufacturers must contact us by March 2, 2020, for manufacturing classification approval for assessment year 2020
  • DOR may add or remove parcels and businesses until it finalizes the assessment roll
  • 2020 Assessment rolls are available in three formats:
    • Adobe PDF – by county
    • Data file – comma separated values (CSV)
    • Web view – HTML

Steps to take

Telecommunications Company (Telco) Assessment System Notification Rolls

Telco property assessed by DOR is exempt from general property taxes (sec. 70.112(4)(b), Wis. Stats.).

Telco Real Estate Notification Roll

Telco Personal Property List

If you have questions, contact the Manufacturing & Utility Bureau District Office in your area.

Thank you for your cooperation and assistance in developing a fair, equitable and accurate assessment roll.