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MARIA PAPPAS
COOK COUNTY TREASURER
MARIA PAPPAS
COOK COUNTY TREASURER
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Michael Puccinelli
Director of Media & Public Relations • Communications
312.603.3211
mpuccinelli@cookcountytreasurer.com
Erika Maldonado
Hispanic Liaison
312.603.5057
emaldonado@cookcountytreasurer.com
Office of Cook County Treasurer Maria Pappas
118 North Clark Street, Room 212
Chicago, Illinois 60602
312.603.6202
news@cookcountytreasurer.com
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Third-party notices tell you if a relative or anyone you know misses a tax payment
Cook County Treasurer's Office - 11/14/2025

Each year thousands of property owners in Cook County are late paying their taxes, putting their homes in danger of being included in the annual state-mandated tax sale. That’s a problem we want to help you avoid.

So, since 2005 my office has allowed you to sign up a relative or anyone you choose to receive copies of certified delinquency notices a month before the Annual Tax Sale. That way, you’re more likely to act and prevent your taxes from being sold.

If you register for the Third-Party Notification program, the person you designate will receive a mailed copy of your delinquency notice from my office.

The program is designed for all homeowners and may be particularly helpful for:

  • Relatives
  • Senior citizens
  • People with disabilities or special needs
  • People with long-term, serious health issues
  • People who are away from their homes for extended periods of time.

You can enroll in the program by downloading a short form at cookcountytreasurer.com. Simply print the form, fill it out and mail it to my office at 118 N. Clark Street, Room 112, Chicago, IL 60602.

The program is a safety net for family members and other trusted individuals and institutions such as churches, temples, mosques or not-for-profit organizations that can also be designated third parties. The program isn’t for use by mortgage companies or banks.

Enroll at any time. However, applications received less than two weeks prior to the mailing of certified notices of delinquent taxes may not be processed before delinquency notifications are mailed.

The Annual Tax Sale must occur about 13 months after your Second Installment tax due date. Once that date is set, my office will send certified notices to property owners whose unpaid tax bills will be auctioned off unless paid in full before the sale.

The third party you designate to receive duplicate copies of delinquency notices assumes no liability for paying your taxes. You, as a property owner, are still responsible. The hope is that the third-party designee will follow up with you to determine whether you received your delinquency notice and are arranging to pay your taxes before they’re offered at the tax sale.

The program renews automatically and is free to all residential property owners. Under state law, there’s a $5 registration fee for nonresidential properties. You may designate only one person or entity to receive third-party notices, and you may cancel at any time.

Registering for the Third-Party Notification program is a simple measure that takes minutes but could prevent hours of aggravation if your taxes are sold.

COOK COUNTY TREASURER'S OFFICE
Cook County Treasurer's Office
118 North Clark Street, Room 112
Chicago, Illinois 60602
(312) 443-5100
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Payments
Payment Plan Calculator
Check Your Payment Status or Make an Online Payment
Pay by Mail or in Person
Pay At Chase Bank
Pay At Your Local Community Bank
Get a Copy of Your Tax Bill
Returned Checks
Information about Prior Year Property Taxes
If Taxes Were Sold
Single or Multiple Payments Via ACH
Multiple Payments Via Wire Transfer
Exemptions and Savings
Exemption History Search
Homeowner Exemption
Senior Citizen Homestead Exemption
Senior Citizen Assessment Freeze Exemption
Persons with Disability Exemption
Home Improvement Exemption
Property Tax Relief for Military Personnel
Disabled Veteran Homestead Exemption
First Responder's Surviving Spouse Tax Abatement
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Refund Informational Videos
Overpayment Refund Search
Overpayment Refund Status Search
How to Apply for a Property Tax Refund
Uncashed Check Search
Property Tax Appeal Board Decisions
Estate Search
Services for Seniors
Exemptions
The Senior Citizen Real Estate Tax Deferral Program
Third-Party Notification
Disabled Veteran Homestead Exemption
Understanding Your Taxes
How the Illinois Property Tax System Works
Cómo Funciona el Sistema de Impuestos a la Propiedad en Illinois
Understanding Your Tax Bill
Get a Copy of Your Tax Bill
About Your Property Index Number (PIN)
Update Your Name or Mailing Address
Monitoring Your Mortgage
Taxing Districts' Financial Statements and Disclosures
Receive Your Tax Bill By Email
Sign In to Your Electronic Billing Account
20-Year Tax Bill History
View Taxing District Debt Attributed to Your Property
Tax and Scavenger Sales
General Information
Search to See If Your Property Has Sold Taxes
Foreign Language Brochures
Foreign Language Brochures
Forms
Update Your Name or Mailing Address
Duplicate or Overpayment Refund
Property Tax Appeal Board Decisions
Certificate of Error Refund
Third Party Notification Request
Property Tax Relief for Military Personnel
Freedom of Information Act (FOIA) Request
The Senior Citizen Real Estate Tax Deferral Program
About the Office
Duties and Responsibilities of the Cook County Treasurer
Maria Pappas, Cook County Treasurer's Biography
Maria Pappas, Cook County Treasurer's Resume
Freedom of Information Requests
State of the Office
Investment Policy
Frequently Asked Questions
News and Press Videos
News and Press Videos
Important Dates
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