Rich Township Township Gov Clerk/FOIA Office Assessor Highway Dept COVID-19 Latest News/Posts Property Tax Appeals The last day to file an appeal with the Cook County Assessor's Office for tax year 2021 is this Monday November 29th. The Rich Township Assessor's Office has no more appointments available at this time. You can file an appeal online at cookcountyassessor.com, then follow the prompts for filing an appeal. You will have until midnight on Monday, November 29th to file your appeal online. Please Note: The Cook County Assessor’s Office has been informed that taxpayers are being solicited by people claiming to work at their office. These solicitors have been notifying taxpayers that they have missing exemptions and are encouraging taxpayers to hire them to file Certificates of Error on their behalf. The Cook County Assessor, as well as the Township Assessor, wants taxpayers to be aware that they do not need outside legal representation to file for a Certificate of Error. Certificate of Error exemption forms may be requested by calling the Rich Township office and request that a Certificate of Error exemption form be mailed to them. If you have any questions please do not hesitate to call. DONATE Like Us On Facebook