Odds, risk & outcomes
Can appealing raise my property assessment?
Filing an appeal with the Cook County Assessor does not raise your assessment — the Assessor does not increase values on appeal. The Board of Review has authority to increase an assessment, but does so only rarely and only after notice. For a typical residential appeal supported by comparables, the practical downside is close to zero.
Check your address — freeSee your own assessment math before you file. You keep 100%.