To assist Cook County residents in obtaining unclaimed funds, the Cook County Treasurer's Office ("CCTO") posts information related to uncashed checks issued by the CCTO in the regular course of its business.

You may search by 14-digit Property Index Number (PIN) or by Payee Name for information regarding checks that remain uncashed for one (1) or more years following the date of their issuance by the CCTO.

Note: You may only search this site for uncashed checks issued by the CCTO in the regular course of its business. If you believe that you are the payee of an uncashed check issued by a Cook County agency other than the CCTO, please click here for an internet directory of Cook County governmental agencies and visit the website of the appropriate agency in order to obtain further information regarding the procedure(s) for recovering those funds.

Uncashed Check Search: Use the fields below to search for any Uncashed Check Information. We will e-mail your uncashed check information. * Indicates required field You may search for uncashed checks by Property Index Number or Payee Name. Search Method:   Search by PIN (Property Index Number)   Search by Payee Name You must search by PIN in order to locate uncashed property tax payment refund checks. * PIN (Property Index Number): - - - - * Your First Name: * Your Last Name: * Your E-mail Address: (example: username@domain.com) * Verify Your E-mail (Please re-type your e-mail address): Remember my information on this computer Please type in the 6-letter security code below exactly as you see it displayed, and then click Search & E-mail me.   For information on locating a PIN, please visit Locating Your Property Index Number (PIN) section.

If you believe that you are legally entitled to an uncashed check, please e-mail us by clicking here. You can also mail your request to:

Finance Department
Cook County Treasurer’s Office
118 North Clark Street, Room 212
Chicago, IL 60602

You will be required to complete an application and a notarized affidavit and to supply other information in order for the check to be reissued to you.