Updating Your Name or Address
When you buy or sell your home, the name and address on the tax bill are not automatically changed. The new owner must submit a Name/Address Change Application to the Cook County Treasurer's Office with acceptable identification. If this application is submitted by mail, your signature must be notarized.
Select from one of these three options to complete the name-change process:
- When paying your property tax bill, fill out the back portion of the tax bill stub with the new name and/or billing address. Have it notarized and mail it with your payment.
- Complete a mail-in application for change of name/address. Forms are available at our office or can be downloaded from this website under the "Forms" section. Mail-in forms must be notarized and addressed to our office.
- If you submit the form in person without notarization, you must bring your 14-digit Property Index Number (PIN) and TWO of the following forms of identification:
- Driver's license
- State identification card
- Social security card
- Birth certificate
- Military license or identification card
- Current certified copy of trust agreement with notarized letter
- Employee photo identification card with a check stub
- Copy of recorded deed to property or articles of agreement for deed
- Notarized power of attorney reciting authority to change name or address
NOTE: Our office cannot change the mailing address information to the address of a mortgage company, bank or other taxpaying agent who pays on behalf of the taxpayer. When a property owner pays through escrow, it is important that the owner receive the bill for payment monitoring purposes and so that he or she receives all important tax-reducing exemption, assessment and delinquency notices.
If the property location on your tax bill needs to be updated, contact the Cook County Assessor's Office at 312.603.7509, or go to the following website to obtain the form: www.cookcountyassessor.com.