Best Child Support in Illinois — 6 resources

About Child Support for Women

Child support is administered state-by-state under the federal Title IV-D program, with every state required to operate a Child Support Enforcement (CSE) agency. For custodial mothers, these agencies establish paternity, locate non-custodial parents, calculate orders under state guidelines, and enforce payments through wage garnishment, tax refund intercept, license suspension, and contempt actions. Services are free of charge. Mothers can also pursue retroactive support and modifications when income changes. The federal Office of Child Support Enforcement (OCSE) oversees the program. This directory includes each state's CSE agency, online support calculators, local enforcement offices, and modification resources.

Child Support in Illinois

Illinois handles family law through circuit courts in each of its 23 judicial circuits, with Cook County running its own Domestic Relations Division. The Division of Child Support Services handles enforcement. Chicago dominates the state; Aurora, Rockford, Joliet, Naperville, and Peoria follow. Legal Aid Chicago, Land of Lincoln Legal Aid, and the Illinois Coalition Against Domestic Violence support women.

6 Resources

1. Illinois Division of Child Support Services — Free

DCSS at HFS, 509 S 6th St in Springfield, is the state agency that establishes paternity, sets support orders, and enforces collection through wage withholding and tax intercept. Illinois mothers can open a case at no cost regardless of TANF status by calling (800) 447-4278 weekdays 8am-5pm. The agency uses the Illinois income-shares guideline adopted in 2017 and can pursue interstate enforcement against fathers in any state.

(800) 447-4278 · 509 S 6th St, Springfield, IL 62701 · Mon-Fri 8am-5pm · Visit Website

2. National Child Support Enforcement Association — Free

NCSEA is the professional association whose members include Illinois HFS DCSS caseworkers and Cook County State's Attorney's child-support staff. Its public-facing materials explain how Illinois fits into the federal IV-D program, why a TANF case opens automatic child support, and how the new federal pass-through rules affect Illinois mothers receiving cash assistance. Always free to read online.

Nationwide · Online · Visit Website

3. Find Your State Child Support Agency — Free

The federal OCSS state-contacts page lists Illinois HFS DCSS with its Springfield headquarters, regional field offices in Chicago and southern Illinois, and online portal links for case lookup. Mothers with a non-custodial parent who has moved to Indiana, Wisconsin, Iowa, or Missouri can use this page to find the receiving-state agency that will partner with Illinois under UIFSA.

Nationwide · Online · Visit Website

4. Single Mother Guide — Child Support — Free

Single Mother Guide is an independent online publication that breaks down each state's child-support process in plain language, with an Illinois-specific page covering income-shares calculations, the standard 28-day filing timeline, and tips for working with HFS DCSS. Articles include sample worksheets for Illinois's percentage-of-net-income formula and address questions mothers often raise about retroactive support and modification.

Nationwide · Online · Visit Website

5. Healthy Children — Child Support Basics — Free

Operated by the American Academy of Pediatrics, HealthyChildren.org explains the financial side of separation for parents, including how child support tracks with health-insurance orders that Illinois courts can enter alongside cash support. Pediatrician-authored articles help Illinois mothers understand why courts often include both KidCare/All Kids enrollment and private-insurance contribution in the same support order.

Nationwide · Online · Visit Website

6. National Family Support Network — Free

NFSN connects family-support practitioners and includes the Illinois Family Resource Center Network as a state affiliate. The public site offers research and policy briefs that inform how Illinois HFS designs services for low-income mothers, plus a member-finder tool to locate Illinois community-based family-support programs in Cook, DuPage, Peoria, and St. Clair counties.

Nationwide · Online · Visit Website

Frequently Asked

How many child support resources are in Illinois?
Women's Corner tracks 6 child support resources for women in Illinois.
Are child support resources in Illinois free?
6 of the 6 listed child support resources in Illinois are explicitly free or low-cost.
Which cities in Illinois have child support resources?
Listings span cities including Springfield.
What are some examples of child support resources in Illinois?
Featured entries include Illinois Division of Child Support Services, National Child Support Enforcement Association, Find Your State Child Support Agency, Single Mother Guide — Child Support, Healthy Children — Child Support Basics.
Do these listings include phone numbers?
1 of 6 Illinois child support listings include phone numbers.
How do I open a child support case?
Apply free through your state's Child Support Services agency — online, by mail, or in person at the local office. The agency establishes paternity if needed, locates the other parent, calculates the order, and enforces collection through wage garnishment, tax intercepts, and license suspension. You don't need the father's cooperation to open a case.
What if the father isn't paying?
Report non-payment to your state Child Support Services agency — they have enforcement tools you can't access alone, including wage garnishment, federal/state tax refund intercepts, passport denial, driver's license suspension, and contempt prosecution. Keep your contact info current with the agency so payments route to you correctly.
Can I get child support if we were never married?
Yes. You first establish paternity — voluntarily through an Acknowledgment of Paternity form, or through a court-ordered DNA test if the father disputes it. Once paternity is legal, the court issues a support order based on his income. The state agency handles the whole process at no cost.
What if my support order is too low?
File a Motion to Modify with the court if there's been a substantial change — his income went up, your costs went up, custody time changed, or it's been 3+ years since the last review. Your state Child Support agency will do a free review every 3 years on request. Modifications aren't retroactive, so file as soon as circumstances change.