Official property records
PINs, assessment values, parcel addresses, and property characteristics come from Cook County assessment records.
Data and sources
Simple Tax Appeal uses public Cook County property and assessment records. The result page shows the assessment year and data snapshot used for your search.
How Simple Tax Appeal compares homes
Simple Tax Appeal ranks nearby homes with similar physical characteristics and compares the building assessment per square foot so differences in land value do not distort the match.
Before you file
Simple Tax Appeal gives you the source PINs and assessment details so you can verify the selected properties against the official Cook County record before submitting an appeal.
Simple Tax Appeal is independent and is not affiliated with Cook County or any government agency.