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Homeowners have until Sept. 11 to apply for missing property tax exemptions

Deadline approaching to receive adjusted property tax bills

Information provided by the Cook County Assessor’s Office

CHICAGO, Ill. (September 2, 2020) – Homeowners in Cook County have until September 11, 2020 to apply for missing property tax exemptions on their 2019 second-installment property tax bills. By meeting this deadline, homeowners can receive corrected property tax bills by mail before the October 1, 2020, deadline to pay without incurring penalties and interest.

How does a property owner know if they are missing an exemption? 

Homeowners can look at the bottom left corner of the second-installment property tax bill, available at, under the Tax Calculator section. If homeowners believe they are entitled to an exemption that is not listed, they can apply for a Certificate of Error by submitting an application and copies of supporting documentation online at, on paper, or in person. Please see the full list of property tax exemptions administered by our office at

If homeowners apply for Certificates of Error after September 11, 2020, they are responsible for paying the entirety of the second-installment tax bills to the Cook County Treasurer’s Office by October 1, 2020. If the Certificate of Error application is granted, a refund for the difference will be issued.

To further assist homeowners, the Cook County Assessor’s Office is hosting a virtual meeting on how to apply for a Certificate of Error on September 10, 2020 at 6:00 p.m. that can be accessed on Facebook and YouTube.

The Lansing Journal
The Lansing Journal
The Lansing Journal publishes news releases from state, county, and local officials who provide information that impacts local community life. The particular contributor of each post is indicated in the byline.