CookCountyPropertyTaxPortal
About Us
The Cook County Property Tax Portal, created and maintained by the Cook County Treasurer’s Office, combines property tax information from the Cook County Assessor’s Office, the Board of Review, the Clerk’s Office, and the Treasurer’s Office into one unified site. This site will allow residents to have online access to comprehensive information about their properties such as appeal or exemption opportunities or liens, saving time and promoting efficiency for taxpayers.
On this website, a property owner will enter a PIN or address and get five years of history, in linear form and on a single screen, without having to visit various websites to determine what is owed, paid and what refunds might be available. Owners can also get information to begin the process of appealing their property taxes or apply for a missed exemption.
This portal compiles information that will hopefully be more sensitive to your needs, more convenient for use and more efficient for residents of Cook County.
The Property Tax System
1. PROPERTY TAX BASE
The Assessor assesses all real estate located throughout the County and establishes a fair market value for each property.
2. APPEALS
Appeals are accepted and decisions reached on changes to a property’s assessment, classification, or exemptions.
3. PROPERTY TAX RATES
The Clerk determines the tax rates based on the levy ordinances passed by taxing agencies and applies the rates to the assessments received for the Assessor to determine the amount of property tax owed.
4. BILLING AND PAYMENT
The Treasurer mails out property tax bills and collects the money.
5. FUNDING OF LOCAL TAXING AUTHORITIES
The Treasurer distributes the money to over 2200 local taxing agencies, including the County, cities, schools and special districts.