Assessor Services

River Forest Township Assessor Services can answer many questions about real estate and property tax bills. Property values are determined by the Cook County Assessor’s Office.
Our part-time office is open. We are here to assist you. You may call our office at 708-366-2787. Please leave your name, address, phone number, and concern or email us at: assessor@riverforesttownship.org.
Walk in appointments are not available at this time.
Assessor News and Updates
File for Missing Exemptions
Certificates of Error for Exemption applications are available online. The River Forest Township Assessor's Office is available to help with your Certificate of Error.
Application Assistance for River Forest Residents
Or file your Certificate of Error for Exemptions directly with the Cook County Assessor using the link below.
Second Installment Tax Bills Are Delayed - Here’s What to Know
This year the mailing and due date for second installment tax bills are delayed.
The County has not published any information regarding when they will be mailed or due. We will send out a constant contact email when information is available. Sign up for constant contact notifications here.
When Cook County's second installment property tax bills are sent on time, tax bills hit mailboxes in late June and are due around August 1.
For decades, the county agencies involved in preparing property tax bills have been using a 1980’s-era mainframe computer system. The county has been phasing out the old mainframe for the last few years, but 2025 marks the first year in which the old system will phased out completely. This year’s tax bills will be calculated in their entirety under the new system.
The problems associated with the final transition to the new system are the reason for the delay in this year’s tax bills.
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Overview of Services
The 2023 tax year exemption filing period now requires a Certificate of Error.
We are here to help with any questions or concerns. Call or email us for assistance. (708)366-2787 or assessor@riverforesettownship.org
Tax Year Exemption Applications
Property Tax Cycle
The new year introduces the start of a new property tax cycle. We will continue to have appeal sessions with the Cook County Assessor and the Board of Review. Exemption applications will be processed, tax levies will be determined by taxing bodies and 2024 property tax bills calculated, sent and due all before the end of 2025.
Property Tax Exemptions
To verify which exemptions were received last year, homeowners can visit the Cook County Property Tax Portal at cookcountypropertyinfo.com, enter their PIN and look under the exemption tab.
For first-time applicants, the tax year exemption filing period will begin in the first quarter of the year. Homeowner are encouraged to file online. To learn more about property tax exemptions and eligibility, visit cookcountyassessor.com/exemptions.
Early Payment for 2025 First Installment Tax Bill
The Cook County Treasurer may make it available to pay one’s 2025’s first installment tax bill in December. If you choose to make your payment early, follow this link