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What is pre-registration?

Pre-registration allows you to get ready before your township’s appeal window opens.

This helps you:

  • Organize your property information early

  • Review your assessment in advance

  • File quickly once the window begins

To prepare, you typically need:

  • Township name

  • Property address

  • Permanent Index Number (P.I.N.)

Pre-registration is very helpful for business owners or those with multiple properties. It helps them stay organized and avoid delays.

To check when your township opens, visit:

Cook County Property Tax Appeal Deadlines page..

If you would like assistance preparing in advance and filing on time, Cook County Tax Appeals can manage the process for you.

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:

  • 25% of your tax savings for the first year

  • $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