Cook County: 2024 Second Installment Property Tax Bills

Cook County officials have confirmed that the long-delayed 2024 Second Installment property tax bills will be mailed on November 14, 2025, and will be due December 15, 2025.

The mailing of the second installment bills was delayed due to issues upgrading the county's property tax system, so the window between issuance and payment is tighter than normal.

Homeowners who are missing property tax exemptions and wish to receive an adjusted tax bill as soon as possible may submit an Exemption Certificate of Error (C/E) application to the Cook County Assessor’s Office (CCAO) Skokie branch, located at the Skokie Courthouse, 5600 W. Old Orchard Rd. While walk-in visits are accepted, appointments are strongly encouraged due to expected long wait times.

Evanston’s Property Tax Assessment Review Office will also be available to assist homeowners with submitting C/E applications; however, these adjusted tax bills are typically mailed within 2–3 weeks of approval (timeframe not guaranteed).

Property owners can pay their tax bills:

• Online at cookcountytreasurer.com for free if using your bank account (there is a fee if using a debit/credit card). 
• In-person at any Chase Bank location in Illinois, or pay at a participating community bank.
• By mail: Cook County Treasurer, PO Box 805436, Chicago, IL 60680
• In-person at the Treasurer’s Office located at 118 N. Clark St, Room 112, Chicago, Illinois 60602.

For more information or assistance, visit CookCountyTreasurer.com.