Was your property assessed incorrectly?

Mistakes happen — the Cook County Assessor’s data often contains errors that can lead to unfair property values. It’s a good idea to periodically review your own assessment and compare it to similar homes in your area.

You have two chances each year to appeal your assessed value:
1. At the Cook County Assessor’s Office
2. At the Cook County Board of Review

Each office sets its own opening and closing dates, and deadlines are strict — if you miss them, you’ll have to wait until next year.