Access the CCAO Online

Many services with the Cook County Assessor’s Office can be accessed from the comfort of home, for free.

Online Services: 

Get information:


Have questions or need assistance from our office? 

Cook County Assessor’s Office staff will continue to provide services even if our office is closed to the public. At this time, all are encouraged to contact us online. Please note that our staff responds personally to every message. We appreciate your patience as we try to assist all taxpayers. 

In the suburbs, your local township Assessor may be able to assist you.