The Cook County Property Tax Portal, created and maintained by the Cook County Treasurer’s Office, consolidates information from the elected officials who take part in the property tax system and delivers Cook County taxpayers a one-stop customer service website.

The Cook County Property Tax Portal is the result of collaboration among the elected officials who take part in the property tax system; the Portal consolidates information and delivers Cook County taxpayers a one-stop customer service website.

Important: This site provides access to the Cook County Assessor’s Office property records database. To access the records, you can search by your Property Index Number (PIN) or by Address.

Fritz Kaegi, Cook County Assessor. 118 North Clark Street • Third Floor, Room #320 • Chicago, IL 60602. Local Township Assessors • CCAO Office Locations • Cook County Government Offices

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.

To Property records Search Important: This site provides access to the Assessment and Tax office property records database in Cook County, Illinois. To access public records, search by street address or PIN.

The Assessor's Office released an enhanced tool that shows a greater level of detail for each property located in Cook County. A property owner can visit the Assessor’s website, enter their PIN, or address, and obtain information such as the estimated market value, assessed value, and property characteristics.

The Cook County Assessor’s Office makes every effort to maintain the most accurate information possible. No warranties, expressed or implied, are provided for the data herein, its accuracy, use, completeness or interpretation.

The Cook County Property Treasurer's Office make every effort to maintain the most accurate information possible. No warranties, expressed or implied are provided for the data herein, its use or interpretation.

You also can check and update key information about your property, such as: Mailing address; Property tax exemptions; Access the 20-Year Property Tax History: Read "The Pappas Study" Search your property tax history; Use interactive maps; View Taxing District Debt Attributed to Your Property: Read the Executive Summary; Read the Debt Report