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How often can I appeal?

You can usually file one appeal per tax year during your township’s open filing window with the Cook County Board of Review.

Important points to understand:

  • Appeals are filed according to the township

  • Each township has a limited annual filing period

  • You must file during that open window for the current tax year

  • Once the window closes, you generally must wait until the next year

Because deadlines change every year and vary by township, always confirm your filing window at:

Cook County Property Tax Appeal Deadlines page..

For homeowners and business owners who want to meet the deadline, Cook County Tax Appeals can help. We will prepare and submit your appeal on time.

Are You Overpaying?

Most Cook County homeowners are. Stop guessing and start saving.

Why Use Us?

  • 70% Higher Success Rate than the average attorney appeal (2025).

  • Instant Analysis of your property.

OUR FEE STRUCTURE

We work on a contingency basis:

  • 10% of your tax savings per year.

  • Max Fee: Capped at 25% total.

  • $0 Due if we don't lower your taxes.

FAST & EASY START

  1. Check your potential savings instantly.
  2. Sign Up with zero paperwork.
  3. Relax—we handle the Assessor, Board of Review & PTAB.

Precision. Persistence. Professionalism.

Find Your Township’s Cook County Property Tax Appeal DeadlineCheck Your Tax Evaluation

Precision. Persistence. Professionalism.

Find Your Township’s Cook County Property Tax Appeal DeadlineCheck Your Tax Evaluation