Contact Us

Although the downtown and suburban offices of the Cook County Assessor's Office are currently closed to in-person visits, you can: 

• find assistance on our website and social media channels
• call us at (312) 443-7550 between 9am and 4:30pm
• email us below, but please expect a week before a response.

Things to know:

• Looking for property tax refunds? If you think you and your mortgage company both paid the taxes for the same installment, resulting in a double-payment, you may be eligible for a property tax refund. Search for refunds and learn more about the Treasurer's "Black & Latino Houses Matter" program by calling the Treasurer's Office at (312) 603-5105 or visiting cookcountytreasurer.com. Please note: the Treasurer's Office issues, collects, distributes, and refunds property tax bills. The Assessor's Office does not have access to this payment information. 
   
• Have you recently applied for an exemption online? Please wait 2-3 weeks. Our staff must review your application and documents and verify your eligibility. When this process is complete, you will receive an email from our Office that will say whether the application has been accepted ("Completed") or had to be denied ("Declined"). Learn more about exemptions administered by the Assessor's Office.
   
• Changes to assessed value (from reassessment, appeals, and/or COVID adjustments) will be incorporated on second-installment property tax bills sent this summer. 
   
• More frequently asked questions