The Will County Treasurer’s Office does not calculate your property tax bill.  A taxing district (such as your school district) files a levy, the township assessor assesses your property, and the county clerk extends (calculates) your taxes.  The Treasurer’s office only is responsible for mailing you a bill and collecting the tax.

If you don’t agree with your assessment, we strongly recommend that you discuss your assessment with your Township Assessor before you file a complaint (Click here for a list of Township Assessors).  If you would like to file a complaint after speaking with your assessor, you may file an appeal with the Will County Board of Review.

For details about filing an appeal, you should contact the Supervisor of Assessment.

Will County Supervisor of Assessment
302 North Chicago Street
Joliet, IL 60432-4059

You can read rules of the Assessment Appeals Process here.

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