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  • 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.
Elizabeth M. Whitehorn, Director

Illinois Child Support Estimator

The Illinois Child Support Estimator is designed to provide a general idea of a child support amount based on the Illinois child support guidelines (750 ILCS 5/505) and the information entered regarding specific circumstances.  This estimator is for informational purposes only.  The Department of Healthcare and Family Services-Division of Child Support Services assumes no responsibility for the accuracy of the child support amount determined based upon the usage of this estimator.

The child support amount that you determine may not be the same amount that the Department or the court may establish.

This amount is meant to be an estimate and is not a guarantee of the amount of child support awarded.

Many factors affect the amount of child support and each situation is different.

The child support amount may be higher or lower depending on the income figures you use in this estimator.

For information regarding Legal Notices, Disclaimers, Security and Privacy, see the State of Illinois Privacy Policy https://www.illinois.gov/about/privacy.html

Visit the Child Support Estimator {web address}.