Tax Code Reference
Effective Rate: 1.88%
Illinois
Property Tax Code
Illinois Property Tax Code (35 ILCS 200) — Complete reference for assessment procedures, appeal rights, exemptions, and key statutes governing property taxation in Illinois.
Quick Facts
Assessment Authority
Township/County Assessor
Appeal Board
Board of Review
Assessment Ratio
33.33% of fair market value (1/3 of market value)
Assessment Cycle
Triennial (Cook County); varies by county
Appeal Deadline
30 days from PUBLICATION of the assessment list outside Cook County; per-township dates in Cook
Assessment System
Governing CodeIllinois Property Tax Code (35 ILCS 200)
Assessment AuthorityTownship/County Assessor
Assessment Ratio33.33% of fair market value (1/3 of market value)
Assessment CycleTriennial (Cook County); varies by county
Appeal System
Appeal BoardBoard of Review / Property Tax Appeal Board (PTAB)
Appeal Deadline30 days from PUBLICATION of the assessment list outside Cook County; per-township dates in Cook
Key Notes for Illinois
Illinois has one of the highest effective property tax rates in the nation. Cook County (Chicago) uses a triennial reassessment cycle. The EAV (Equalized Assessed Value) is the assessed value multiplied by the state equalization factor.
Hearing Types Available
1
Assessor review2
Board of Review3
Property Tax Appeal Board (PTAB)4
Circuit CourtValid Grounds for Appeal
Overvaluation
Unequal assessment
Incorrect classification
Denial of exemption