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Certificates of Error Filings for Valuations

 If your Certificate of Error for valuation corrections has been approved and you are waiting for a refund, please check with the Cook County Treasurer’s Office for updates on timing of refunds. Check this alert banner for regular updates.  

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Form Documents

Category Form
Reports Media Guide
Reports 2021 Rogers Park Commercial Assessment Report
Reports 2021 West Chicago Township Commercial Reassessment Report
Reports Cook County Property Tax Simulator (through 2019, Chicago only)
Reports Rogers Park 2021 Commercial Property Revaluation Workbooks
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Reports Hyde Park Township 2021 Commercial Property Revaluation Workbooks
Reports Jefferson Township 2021 Commercial Property Revaluation Workbooks
Reports Lake Township 2021 Commercial Property Revaluation Workbooks
Reports Lake View Township 2021 Commercial Property Revaluation Workbooks
Reports North Chicago Township 2021 Commercial Property Revaluation Workbooks
Reports South Chicago Township 2021 Commercial Property Revaluation Workbooks
Reports 2021 City of Chicago Tax Base Report
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Fritz Kaegi, Cook County Assessor

118 North Clark Street • Third Floor, Room #320 • Chicago, IL 60602

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