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Chicago Divorce Lawyer Russell D. Knight Explains "Substantial Change In Circumstances" In Illinois Divorce Modifications

12-10-2025 06:40 PM CET | Politics, Law & Society

Press release from: ABNewswire

Chicago Divorce Lawyer Russell D. Knight Explains "Substantial

Chicago, Illinois - Chicago divorce lawyer Russell D. Knight of the Law Office of Russell D. Knight (https://rdklegal.com/what-is-a-substantial-change-in-circumstances-in-an-illinois-divorce) is highlighting how Illinois courts define and apply the standard of a "substantial change in circumstances" in divorce modifications, providing clarity for former spouses seeking to adjust parenting time, decision-making, child support, or maintenance after a judgment is finalized.

In Illinois, most post-decree modifications require a showing of a substantial change in circumstances before a judge will revisit existing orders. Chicago divorce lawyer Russell D. Knight underscores that while property division and waivers of maintenance are usually final, matters such as parenting time, parental responsibilities, child support, and maintenance remain open to modification when circumstances materially evolve. The Illinois Marriage and Dissolution of Marriage Act, and a long line of appellate decisions, guide courts in assessing when a change is significant enough to justify judicial review.

For parenting time, the standard is comparatively flexible. The Allocation of Parental Responsibilities and Parenting Time may be modified upon a showing of changed circumstances that make modification necessary to serve the best interests of the child. Chicago divorce lawyer Russell D. Knight notes that the statute refers to "changed circumstances," not "substantial change in circumstances," and that courts look at the totality of the circumstances, including the child's evolving needs, existing schedules, and real-world caregiving arrangements. In limited situations, such as when parties have already informally followed a new schedule for at least six months, courts may adjust parenting time without any formal showing of changed circumstances.

Parental decision-making, however, is subject to stricter limitations. An action to modify decision-making generally cannot be brought within two years of the last order unless affidavits show that the child's present environment may seriously endanger the child's health or emotional development. After two years, a court may modify decision-making only when facts arising after the original order, or previously unknown facts, establish a substantial change in circumstances and a modification is necessary to serve the child's best interests. Chicago divorce lawyer Russell D. Knight emphasizes that mere aging of the children, by itself, rarely satisfies this standard.

Financial issues are analyzed through a different but related lens. Child support may be modified upon a showing of a substantial change in circumstances or when guideline calculations would differ by at least 20 percent or ten dollars per month from the current order. Courts evaluate changes in the child's needs, the paying parent's ability to pay, and the financial circumstances of both parents. They examine whether income shifts are material or relatively minor, and may also consider increases in living expenses, educational needs, and the standard of living that would have existed had the marriage continued.

Maintenance modifications follow the substantial change in circumstances test as well. Illinois law directs courts to evaluate employment changes, efforts toward self-sufficiency, impairments in earning capacity, tax effects, duration of payments, property allocations, and post-judgment acquisitions. Case law often treats income changes of 25 percent or more as strong indicators of a substantial change, although judges retain broad discretion. Positive developments, such as improved earnings or unexpected financial gains, can be just as relevant as setbacks.

Importantly, statutory amendments alone do not constitute a substantial change in circumstances, and foreseeable developments may be excluded from later modification if expressly addressed in the parties' original agreement. The party seeking a modification bears the burden of proving that a substantial and legally meaningful shift has occurred before the court may consider altering the existing order.

About Law Office of Russell D. Knight:

The Law Office of Russell D. Knight is a Chicago family law firm focused on Illinois divorce and post-decree matters, including parenting time, parental responsibilities, child support, and maintenance. Led by Chicago Divorce Lawyer Russell D. Knight, the firm represents clients throughout the Chicago area in contested and uncontested divorce, modification, and enforcement proceedings. The practice provides detailed, statute-driven guidance to individuals navigating Illinois family law courts. Interested parties may contact the Law Office of Russell D. Knight to schedule a consultation and learn more about divorce and post-judgment representation in Chicago and the surrounding communities.

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Email: russell@rdklegal.com

Website: https://rdklegal.com/

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Company Name: Law Office of Russell D. Knight
Contact Person: Russell D. Knight
Email:Send Email [https://www.abnewswire.com/email_contact_us.php?pr=chicago-divorce-lawyer-russell-d-knight-explains-substantial-change-in-circumstances-in-illinois-divorce-modifications]
Phone: (773) 334-6311
Address:1165 N Clark St #700
City: Chicago
State: Illinois 60610
Country: United States
Website: https://rdklegal.com/

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