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State Tax Profile for Wisconsin


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POER's Chicago office represents clients' properties in the State of Wisconsin.


If you have any questions or concerns about property taxes in this state, visit the locations page

for our local contact information or send us an email through our contact us page.

state characteristics

Assessment Ratio: 100% 

Note: Local assessors appraise property at 100%. The State Department of Revenue performs a ratio study and publishes their results on each individual tax bill. The majority of jurisdictions are actually between 90-100%.
Fiscal Tax Year: 01/01 – 12/31
Valuation Authority: City
Collection Authority: City, Village or Town
Level One Appeal Name: Cities of Madison & Milwaukee: Board of Assessors
All others: City/Town/Village Board of Review
RE Rendition Required: No
PP Rendition Required: Yes
Consultant Certification or Licensing: Not Required
Non-Disclosure State? No
Real Estate Taxable? Yes
Personal Property Taxable? Yes
Inventory Taxable? No

key tax dates - real estate

Assessment Date: Jan 1  
Appeal Deadline: May - Oct

Apr 30

May 18
Depending on jurisdiction

City of Madison (Last Fri. of April)

City of Milwaukee
(3rd Monday of May)
Tax Bills Issued: Dec 1  
Tax Bills Due: Jan 31  

key tax dates - personal property

Assessment Date: Jan 1  
Tax Returns Due: Mar 1 Inventory exempt
Tax Bills Issued: Dec 1  
Tax Bills Due: Jan 31