What should I do if I think my property is over-assessed?

Asked 3 months ago
If a property owner believes their property has been over-assessed, they have the right to appeal the property assessment. The first step is to review the property tax assessment notice to understand the assessed value and any relevant details. Comparing one's property to similar properties in the area, also known as comparable sales, can provide insights into whether the assessment is accurate. Next, property owners can gather evidence to support their claim. This may include photographs, repair estimates, or information about comparable properties that have lower assessments. Once the necessary documentation is prepared, the property owner can file an appeal with the Cook County Assessor's Office. It is also important to be aware of the deadlines for appeals, as these are usually established by the Assessor's Office and may vary by assessment year. Those interested in the appeal process can find comprehensive information regarding guidelines and required forms on the Cook County Assessor's Office Online website. There, property owners can also find any specific contact information they may need for further inquiries.
Jeff Whelpley is the editor / author responsible for this content.
Answered Aug 25, 2025

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