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What evidence should I submit?

A strong appeal clearly explains why your assessed value is too high and includes supporting documents.

Common evidence includes:

  • Assessment notice

  • Property record card

  • Interior and exterior photos

  • Repair or maintenance estimates

  • Comparable sales or assessments

  • Professional appraisal, if available

  • For commercial property, income and expense data when relevant

Your evidence should:

  • Be clear and organized

  • Directly support your claim

  • Address valuation errors or property condition issues

Well-prepared documentation can make a significant difference in the outcome.

Cook County Tax Appeals prepares complete residential and commercial appeal packages designed to meet Board of Review requirements.

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