The Assessor's Office is responsible for setting fair and accurate values for 1.8 million parcels of Cook County property. The value of these properties is not determined on an individual basis, …

In areas outside the City of Chicago, assistance may be available at local township assessors' offices. Our office will be closed on the following designated holidays.

A study was published by the University of Chicago that found our Office has made great progress in improving the fairness of residential assessments. We encourage you to read the study and …

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After a Certificate of Error application is received, it must be processed through the Assessor’s Office. If the property’s assessment has been previously reviewed by the Board of Review, the …

The Cook County's Assessor's Office is responsible for valuing the more than 1.8 million parcels in Cook County. Illinois law requires that the estimated property value and assessed valuation …

Feb 13, 2025 · The need for property tax relief became urgent after homeowners in Cook County’s south and west suburbs saw significant bill increases in the summer of 2024. The …

After estimating the market value of a home, the Assessor’s Office calculates the home’s Assessed Value based on its Level of Assessment. Levels of Assessment are set by Cook …

*Applicant’s signature _______________________________________ *Date Instructions: Mail (or submit in person) this application and supporting documents to a Cook County Assessor’s …

The Cook County Assessor is an elected government official who is responsible for establishing fair and accurate property assessments. Valuation of the county's 1.8 million parcels of …