New Illinois Appellate Decision in In re Marriage of Williams (2026) Clarifies Parenting Time Modifications
Family law in Illinois constantly evolves, and a recent appellate decision out of the Fifth District has important lessons for parents navigating parenting time disputes after divorce. In In re Marriage of Williams, 2026 IL App (5th) 241260, the Illinois Appellate Court reviewed a trial court’s order that added new terms and conditions to a father’s parenting time, and it reversed and sent the case back for further proceedings.
Here’s what Illinois families should know about this case and its implications.
📌 Background: What Happened in the Williams Case
Abigail and Jeremy Williams were divorced after nearly a decade of marriage and shared parenting time of their two children. In their agreed parenting plan, the parties set out detailed schedules and responsibilities for parenting time, including during certain seasonal work periods.
Later, the mother petitioned the circuit court to enforce the parenting plan and asked the court to find the father in contempt, claiming he didn’t comply with the parenting time terms during busy work seasons. Instead of finding contempt, the circuit court imposed additional conditions and restrictions on the father’s parenting time, effectively modifying the original parenting plan.
Jeremy Williams appealed, arguing that the trial court lacked authority to impose these new terms under the relevant sections of the Illinois Marriage and Dissolution of Marriage Act.
🧠 What the Appellate Court Decided
The Illinois Appellate Court (Fifth District) reversed and remanded the trial court’s ruling. It found that the trial court went beyond its lawful authority when it imposed “additional terms and conditions” that effectively modified the existing parenting time order without properly following the statutory requirements for modification.
In plain English:
- The court can enforce an existing parenting plan, including finding a parent in contempt for non-compliance.
- But a court may not change parenting time terms by adding new restrictions or conditions unless the legal standard for modification is met, such as showing a substantial change in circumstances and demonstrating that a change is in the children’s best interests under 750 ILCS 5/610.5(c).
Because the trial court essentially changed the plan without going through the proper statutory process, the appellate court sent the case back for proceedings consistent with the law.
📍 Why This Matters for Illinois Parents
This decision reinforces a few important principles in Illinois family law:
- Trial courts must respect the boundaries between enforcement and modification of agreed parenting plans.
- Modification requires proper proof, including evidence of a substantial change in circumstances after the agreement or judgment. Simply alleging non-compliance isn’t enough.
- Parents and lawyers should be careful to frame petitions correctly, enforcement and contempt on one hand versus modification on the other, because courts have different standards and permissible relief for each.
In practical terms, if a parenting plan isn’t being followed, a parent may pursue enforcement under section 607.5 of the Dissolution Act (which covers enforcing allocated time), but altering parenting time itself usually requires a separate modification petition under section 610.5(c) showing changed circumstances.
📌 Takeaway
In re Marriage of Williams serves as a reminder: Illinois courts generally won’t rewrite a parenting plan without proper statutory justification. Enforcement and modification are distinct legal paths, and choosing the right one, and proving your case, matters.
If you have questions about parenting plans, enforcement, or modifications under Illinois law, the Law Office of Jonathan W. Cole P.C. can help guide you through the process with clarity and care.
📞 (708) 529-7794 | Law Office of Jonathan W. Cole P.C. — “Your Neighborhood Law Firm.”
