Medicaid Provider Alert: Provider revalidation has begun and those not completing the process risk disenrollment. Check your account now to learn when your revalidation is due. More information here.

The Cook Central Office, 36 South Wabash Avenue, Chicago, will close 02/03/2025. The new Cook Central Office will open at 115 South LaSalle, Chicago, for in-person service on 02/10/2025.
UPDATE: The State Disbursement Unit (SDU) is processing all payments received. To verify the status of your payment, please log into the SDU parent portal or contact the SDU Customer Service Call Center at 877.225.7077. For SDU business hours, click here.

Contact The Child Support Program

Online Services

Access your case online 24/7

If you have an active child support case, you can access your case information 24 hours a day, 7 days a week. Services are available by computer (full website) or smart phone (mobile website), see below:

FULL WEBSITE

MOBILE WEBSITE

Email Us

For general questions, use the "Ask Child Support" button below. You may also find answers to your questions by visiting our frequently asked questions (FAQs). If you have case-specific questions, please sign in to your online account or call 800.447.4278.

ASK CHILD SUPPORT

Mail

If you have comments, questions, or need case information and prefer to send by regular mail, please use one of the addresses provided below. Requests made by mail could experience extended delays.

Cook County
IL Department of Healthcare and Family Services
Division of Child Support Services
P.O. Box 64629
Chicago, IL 60664-0629

All Other Counties
IL Department of Healthcare and Family Services
Division of Child Support Services
Client Services Unit
P.O. Box # 19405
Springfield, IL 62794-9405