Cook County Appeal Checker
Is your Cook County assessment too high?
Compare your home with the most similar homes nearby, using the Assessor's own public data. Free, no sign-up. If it looks high, you get the evidence to appeal and you file it yourself.
- 1. We find your parcel and its 5 to 10 closest matches by size, age, lot and class.
- 2. We compare assessed value per square foot. If yours is higher than theirs, that's a uniformity case.
- 3. You get the evidence kit and your deadline. Filing is free at both the Assessor and the Board of Review.