A residential appeal lets a homeowner challenge an over-assessed home value. File it first with the Assessor, during your township's window of several weeks (42 to 47 days in 2026), and, if needed, with the Board of Review (the independent second level). Common evidence: comparable home sales, lower assessments on similar homes, photos of condition issues, and appraisals.
Back to all FAQs
What Is a Residential Property Tax Appeal in Cook County?
Are You Overpaying?
Most Cook County homeowners are over-assessed. Check your potential savings in under a minute.
WHY CHOOSE US?
70% higher success rate than average attorney appeal
Instant AI-powered property analysis
Licensed Illinois tax attorneys & CPAs
3-tier escalation: Assessor → BOR → PTAB
Risk-Free Service
$0 Upfront cost — you only pay if we winOur fee is just 25% of the first year's savings. No hidden fees, no surprises.
View Pricing DetailsGet In Touch
Phone Numbers
Text / SMS