Per the Will County Treasurer website: 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.