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The Assessor's Office Wins National Awards for Transparency and Fairness

The Cook County Assessor’s Office received awards from national organizations for creating a new residential model that contributes to fairly and accurately assessing homes in Cook County.

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Missing Property Tax Exemptions? Homeowners can apply for Certificates of Error.

If a homeowner was eligible for a homestead exemption in tax years 2021, 2020, 2019, and 2018, and the exemption was not applied, a refund can be obtained through the Certificate of Error process.

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Check your current exemptions by entering your PIN

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