Deadlines & how it works
How do I appeal my Cook County property taxes?
You appeal in up to two free stages: first to the Cook County Assessor during your township’s open window, then, if needed, to the Cook County Board of Review. You file as the property owner, attach comparable properties or recent sales as evidence, and submit online. Neither body charges to file.
The full walkthrough covers each click. Read the step-by-step guide →
Check your address — freeSee your own assessment math before you file. You keep 100%.