Dealing with Deadbeat Parents in Illinois

 Posted on June 22, 2026 in Child Support

Even after a divorce is final, child custody agreements are settled, and support payments are ordered, a family can still face uncertainty. This is especially true when one parent stops receiving the child support payments they count on to help raise their children.

If your ex is behind on child support payments, you might feel panicky and worried about whether you will be able to keep a roof over your family’s head. In Illinois, the law is on your side. Our Kane County child support attorneys know the law and are ready to help you get the child support you need.

How Does Illinois Calculate Child Support?

Before looking at enforcement, it helps to understand how Illinois sets child support amounts in the first place. Illinois uses the Income Shares model under 750 ILCS 5/505 of the Illinois Marriage and Dissolution of Marriage Act. This law looks at the combined net income of both parents and estimates using a formula to come up with payments based on the share of the total income each parent earns.

The Income Shares model replaced an older system that based support solely on the paying parent's income. The current approach is designed to be more fair by including what both parents earn and can pay. It also takes into account additional expenses like health insurance, child care, and extracurricular costs.

This model of calculating child support payments makes it easier for a parent who is genuinely unemployed or making less money through no fault of their own to afford child support. However, the law is unforgiving for parents who simply stop making payments or take a worse job to lower support payments on purpose.

What Can You Do When Your Ex Stops Paying Child Support?

For years, many parents felt like they had little to no options when an ex suddenly stopped making monthly child support payments. Although this makes things tough for the parent who isn’t receiving payments, ultimately the kids are the ones who suffer the most. Illinois family law is concerned, more than anything, with the best interests of children.

So to help parents pursue unpaid child support and encourage continued payment, Illinois put in place a series of enforcement programs. These laws apply to both parents:

• Income withholding: All Illinois employers are required to report new hires to the state. Those reports are shared with the Department of Healthcare and Family Services. Orders to withhold income for child support are submitted to the employer if a new employee is not making payments.
• Driver's license suspension: The Illinois Secretary of State's office can suspend the driver's license of anyone who is more than 90 days late on child support payments.
• Jail time: If a judge finds the non-custodial parent is withholding payments on purpose, that parent can be held in contempt of court and ordered to pay. Failure to comply with the judge's order can result in jail time.
• Credit reporting: Late child support payments can be reported to credit bureaus, making it difficult for the non-paying parent to buy a car, get a loan, or do other financial transactions.
• Extended collection window: Custodial parents have as long as it takes after their child's 18th birthday to pursue and collect past-due child support payments under Illinois law.

As of 2026, these enforcement tools remain fully in effect. The Illinois Department of Healthcare and Family Services actively helps custodial parents go after late payments even without having an attorney. That being said, working with a child support lawyer makes the process faster and more effective.

Can You Modify a Child Support Order in Illinois?

Illinois courts can modify an existing child support order when there has been a "substantial change in circumstances." Common reasons to seek a modification include a significant change in either parent's income, a job loss, a change in the child's needs, or a change in the amount of parenting time each parent has.

Either parent can ask the court to review and modify the support order. In Kane County, those petitions are filed through the Kane County Circuit Court's family law division. Modifications are not retroactive. They only take effect from the date of the petition forward, not from when the circumstances changed. That is one reason it is important not to delay if something has shifted in your situation.

It is also worth noting that informal agreements between parents to change payment amounts without going back to court are not enforceable. If your ex-spouse has agreed to accept less, or has promised to pay more, that agreement has no legal standing unless it is formalized through the court.

What Happens if a Parent Lives in Another State and Stops Paying Child Support?

Child support enforcement becomes more complicated when the non-custodial parent has moved out of Illinois, but it’s not impossible. Illinois participates in the Uniform Interstate Family Support Act, or UIFSA, which allows states to enforce child support orders across state lines. Under UIFSA, Illinois can work with other states to garnish wages, take tax refunds, and use other methods against a parent who has moved.

An attorney who knows how to handle interstate enforcement from Illinois can help you navigate that process without having to start over in another state's court system.

Do We Have to Fight it Out in Court if My Ex Won’t Pay Child Support? 

Many child support disputes can be handled through mediation rather than litigation. Mediation brings both parents together with a neutral third party to work toward a resolution outside of the courtroom. When it works, it tends to be faster, less expensive, and less damaging to the co-parenting relationship than a contested court proceeding.

At The Law Office of Matthew M. Williams, P.C., we are committed to finding approaches that reduce conflict when possible. However, mediation is not always the right path, particularly when one parent has shown they are not interested in working fairly. Sometimes, you really do have to go to court to get child support. However, doing so is worth it when it comes to making sure your kids have what they need.

Call Our Aurora Child Support Lawyer Today

If your ex is behind on court-ordered child support payments, the law is on your side and gives you options to pursue what you and your children are owed. Contact a Kane County family law attorney with The Law Office of Matthew M. Williams, P.C. at 630-409-8184 to schedule a free initial consultation and discuss your options.