Divorce and Custody in Illinois

When you have children and your marriage is ending, the questions multiply. How will the divorce process work? What happens to custody? Will you lose time with your kids? These concerns are natural, and understanding how Illinois handles divorce and parental responsibilities can help you navigate what lies ahead.

Illinois takes a specific approach to divorce when children are involved. The state’s no-fault system means you won’t argue about who caused the marriage to fail. Instead, the focus shifts to what arrangement serves your children’s best interests. Most parents find ways to reach agreement without extended court battles—and the statistics support this. Knowing what to expect from the process can reduce uncertainty and help you make informed decisions about your family’s future.

How Does Divorce Work in Illinois When You Have Children?

Divorce in Illinois follows a structured process, and when children are part of the equation, additional considerations come into play. Understanding the basics of how Illinois approaches both divorce and child-related decisions will help you prepare for what’s ahead.

Illinois Is a No-Fault Divorce State

Illinois eliminated fault-based divorce grounds effective January 1, 2016. Today, the sole ground for dissolution is that irreconcilable differences have caused the irretrievable breakdown of the marriage under 750 ILCS 5/401(a). This means neither spouse needs to prove wrongdoing like adultery or abandonment. If one person believes the marriage cannot be saved, courts generally accept this as sufficient.

This no-fault approach affects how divorce proceeds when you have children. Instead of spending time and resources arguing about marital misconduct, the process can focus on forward-looking questions: How will parenting time be divided? Who will make major decisions about the children’s education, healthcare, and activities?

Residency and Filing Requirements

Before filing for divorce in Illinois, you must meet certain jurisdictional requirements. These ensure that Illinois courts have authority over your case:

• At least one spouse must have been an Illinois resident for 90 days before filing or before the court enters judgment
• A six-month separation period creates an irrebuttable presumption of irreconcilable differences, though this period may be waived by stipulation of both parties
• “Separate and apart” can include living in the same household if you are no longer living together as spouses
• The divorce should be filed in the county where either spouse resides, though venue is waivable

According to CDC/NCHS data (2024), Illinois has a divorce rate of 1.2 per 1,000 population—among the lowest in the nation and half the national average of 2.4 per 1,000.

Why Illinois Uses “Parental Responsibilities” Instead of Custody

Illinois changed its terminology in 2016. What most people call “custody” is now officially known as “allocation of parental responsibilities.” This isn’t just a semantic change. The new framework emphasizes two distinct components: decision-making responsibility (who makes major decisions about the child) and parenting time (the schedule of when each parent has the child).

While searchers still use the term “custody,” understanding Illinois’s terminology helps when reading court documents or discussing your case with attorneys. The shift reflects a broader focus on shared parenting and the recognition that both parents typically remain involved in their children’s lives after divorce.

What Happens to Custody During the Divorce Process?

From the moment a divorce petition is filed until the final judgment is entered, courts can issue temporary orders addressing parental responsibilities. These orders help maintain stability for children while the divorce is pending.

Temporary Orders While Your Divorce Is Pending

Under 750 ILCS 5/603.5(a), courts have authority to enter temporary orders allocating parental responsibilities during the divorce proceedings. These orders address immediate questions: Where will the children live? How will parenting time work during the school year? Who will make decisions about medical care or extracurricular activities while the divorce is being finalized?

Temporary orders serve an important function. As the Illinois Appellate Court recognized in In re Marriage of Greenberg, 102 Ill. App. 3d 938, 429 N.E.2d 1334 (Ill. App. 1st Dist. 1981), courts have “wide latitude” in setting temporary arrangements. The principal purpose is “to balance the equities between the parties as fairly as possible while the dissolution case is pending.”

How Courts Evaluate Parenting Arrangements

When parents cannot agree, courts evaluate proposed parenting arrangements based on the child’s best interests. This standard appears throughout Illinois family law and requires courts to consider factors like each parent’s relationship with the child, the child’s adjustment to home and community, and the mental and physical health of everyone involved.

Courts do not apply a formula or automatically favor one parent over another. Instead, they examine the specific circumstances of each family. Illinois law explicitly values the contributions of both parents and recognizes that children generally benefit from meaningful relationships with both their mother and father.

Status Quo and Early Decisions

One practical reality parents should understand: the arrangements made early in the divorce process often influence final outcomes. If one parent becomes the primary caretaker during the separation period, courts may be reluctant to disrupt that stability when entering final orders.

This doesn’t mean temporary orders prejudice the final determination as a matter of law—they don’t. But as a practical matter, demonstrating consistent, quality parenting time from the beginning of the divorce process matters. Parents who remain actively involved with their children during the divorce typically have stronger positions when negotiating or litigating final arrangements.

Do Most Custody Cases Go to Trial?

One of the most common concerns parents have about divorce is whether they’ll end up in a prolonged courtroom battle over their children. The statistics offer some reassurance.

What the Numbers Show About Custody Disputes

The vast majority of custody disputes resolve without trial. According to research published in The Macksey Journal (2024), 90% of custody cases are resolved without court trials. Industry data cited by the U.S. Census Bureau indicates that approximately 95% of divorces overall are uncontested, with only about 4% of custody cases requiring a trial to resolve.

These numbers reflect an important truth about divorce with children: most parents eventually find ways to agree on parenting arrangements. Whether through direct negotiation, mediation, or attorney-assisted settlement discussions, the majority of families reach resolution without asking a judge to decide how they will raise their children.

Common Ways Parents Reach Agreement

Parents have several paths to settlement that avoid the uncertainty and expense of trial:

• Direct negotiation between parents, sometimes with informal guidance from attorneys
• Attorney-assisted negotiation, where lawyers communicate and propose arrangements on behalf of their clients
• Mediation with a neutral third party who helps facilitate discussion and compromise
• Collaborative divorce, where both parties and their attorneys commit to reaching settlement without litigation
• Settlement conferences, either informal or court-supervised, designed to narrow issues and encourage agreement

Each approach has advantages depending on the level of conflict between parents, the complexity of the issues, and the family’s financial resources.

When Court Intervention Becomes Necessary

Some cases do require judicial intervention. When parents fundamentally disagree about where children should live, who should make major decisions, or how parenting time should be structured, a trial may be unavoidable. Cases involving allegations of abuse, substance abuse, or mental health concerns often require court involvement to protect children’s safety.

One of the first steps courts take in these situations is appointing a guardian ad litem (GAL) under 750 ILCS 5/506. A GAL is an attorney appointed to represent the child’s best interests — not the interests of either parent. GAL appointments are common in divorce cases involving children, and they give the court an independent perspective on what arrangement will best serve the family.

The GAL conducts a thorough investigation that typically includes interviewing both parents, speaking with the children when age-appropriate, visiting each parent’s home, and consulting with teachers, therapists, or other relevant professionals. After completing this investigation, the GAL files a written report with the court and makes recommendations regarding how parental responsibilities should be allocated. Judges give significant weight to these recommendations because the GAL has spent time with the family in ways the court cannot during a hearing. 

Even in contested cases, however, many issues often narrow before trial. Parents may agree on some aspects of parenting while asking the court to decide specific disputes.

Who Usually Gets Custody in Illinois?

Questions about gender and custody outcomes are common among divorcing parents. Both mothers and fathers often worry about whether courts will treat them fairly.

National Trends in Custody Arrangements

According to the U.S. Census Bureau’s 2025 report on custodial parents (reporting 2022 data), 78.2% of custodial parents are mothers while 21.8% are fathers. These national figures reflect the reality that mothers more often serve as primary residential parents following divorce.

However, context matters. These statistics capture outcomes, not court decisions. Many factors influence which parent becomes the primary custodian, including pre-divorce caregiving patterns, work schedules, and parental preferences. When parents settle custody privately—as most do—their agreements reflect their own circumstances rather than court-imposed outcomes.

Illinois Courts Focus on the Child’s Best Interests

Illinois law does not favor mothers or fathers. The statutory framework requires courts to allocate parental responsibilities based on the child’s best interests, considering factors that apply equally to both parents. Courts examine each parent’s relationship with the child, their ability to cooperate, their willingness to support the child’s relationship with the other parent, and many other relevant circumstances.

Gender, by itself, is not a factor in determining parental responsibilities under Illinois law. Courts evaluate each parent as an individual, not as a representative of their gender.

Fathers Are Receiving Custody More Often

The trend shows increasing father involvement in primary custody arrangements. According to the same Census Bureau data, the share of custodial fathers has risen from 16% in 1994 to 21.8% in 2022. This shift reflects changing social expectations, more fathers taking active caregiving roles during marriage, and family courts’ evolving approaches to shared parenting.

For fathers concerned about their position in custody disputes, these trends offer some encouragement. Active involvement in children’s daily lives—before, during, and after divorce—remains the most important factor in custody outcomes.

What Documents and Disclosures Are Required?

Divorce with children involves substantial paperwork and mandatory disclosures. Understanding these requirements helps you prepare and avoid complications.

Mandatory Financial Affidavits

Under 750 ILCS 5/501(a)(1), both parties in an Illinois divorce must complete and exchange financial affidavits on statewide standardized forms. These documents require detailed information about income, expenses, assets, and debts. Courts rely on this information to make decisions about child support, parental responsibilities, and property division.

Required financial documentation typically includes:

• Recent federal and state tax returns (typically three years)
• Current pay stubs or other income documentation
• Bank and investment account statements
• Retirement account statements
• Documentation of monthly living expenses

Financial affidavits are exchanged between the parties but are not filed with the court clerk. This protects sensitive financial information from becoming part of the public record.

The Discovery Process in Divorce

Beyond mandatory disclosures, Illinois allows full civil discovery in divorce cases. This means either party can request additional documents, send written questions (interrogatories), and take depositions. Discovery helps ensure both spouses have access to complete financial information before negotiating settlement or going to trial.

As the Illinois Supreme Court recognized in Williams v. A.E. Staley Manufacturing Co., 83 Ill. 2d 559 (Ill. 1981), discovery is intended as “a cooperative undertaking” rather than a tactical game. Both parties benefit when financial information flows freely, allowing for fair negotiations and accurate support calculations.

Why Full Disclosure Matters

Illinois courts take disclosure obligations seriously. Intentional or reckless inaccuracies in financial affidavits can result in sanctions, and concealed assets can lead to judgments being reopened years later. In In re Marriage of Brubaker, 2022 IL App (2d) 200160, 198 N.E.3d 341 (Ill. App. 2nd Dist. 2022), a divorce judgment was reopened due to fraudulent concealment of a major asset—demonstrating that hidden information can come back to haunt dishonest spouses.

Complete disclosure also facilitates settlement. When both parties trust the financial picture, they can negotiate with confidence. Hidden information breeds suspicion and makes agreement more difficult.

Can You Settle Custody Without Going to Court?

Given that most custody cases resolve without trial, understanding how settlement works is essential for divorcing parents.

Marital Settlement Agreements Explained

A marital settlement agreement (MSA) is a binding contract between divorcing spouses that resolves some or all issues in their divorce. Under 750 ILCS 5/502(a), parties may enter written agreements covering property division, maintenance, and parental responsibilities. Once incorporated into the divorce judgment, these agreements become enforceable as court orders.

The advantages of settlement are significant. Parents who reach their own agreements retain control over outcomes rather than leaving decisions to a judge who knows far less about their family. Settlements also typically cost less, take less time, and create less conflict than litigation—all factors that benefit children watching their parents divorce.

Creating a Parenting Plan

Illinois requires divorcing parents to submit a parenting plan addressing allocation of parental responsibilities. This plan should cover decision-making authority, parenting time schedules, transportation arrangements, communication protocols, and methods for resolving future disputes.

Parents can create parenting plans together, with assistance from attorneys or mediators. A well-crafted parenting plan anticipates common issues and reduces the likelihood of post-divorce conflict. Plans often address holidays, school breaks, vacation time, communication between parents, and procedures for modifying arrangements as children grow.

How Agreements Become Enforceable

Under 750 ILCS 5/502(e), marital settlement agreements incorporated into divorce judgments are enforceable by all remedies available for court orders, including contempt, and as contract terms. This dual enforceability gives both parents recourse if the other fails to honor the agreement.

Courts will approve settlement agreements unless they find the terms unconscionable. As explained in In re Marriage of Bielawski, 328 Ill. App. 3d 243, 764 N.E.2d 1254 (Ill. App. 1st Dist. 2002), “all presumptions are in favor of the validity of the settlement.” Courts recognize that parents typically know their children and circumstances better than any judge, and settlements reflecting parental agreement deserve respect.

What Should You Do First?

If you’re facing divorce and have children, taking organized steps early in the process can make a significant difference in how smoothly things proceed.

Gather Important Documents

Before meeting with an attorney or beginning the divorce process, collect key documents:

• Your marriage certificate
• Birth certificates for all children
• Recent tax returns (at least three years)
• Bank statements, pay stubs, and other financial records
• Retirement account statements
• Documentation of children’s schedules, schools, activities, and medical providers
• A preliminary list of marital assets and debts

Having this information organized saves time and reduces stress once the process begins.

Understand the Timeline

Illinois divorce with children takes time. The 90-day residency requirement must be met. If you haven’t lived separately, the six-month separation period applies unless both parties agree to waive it. Temporary orders addressing parental responsibilities may be entered early, but final orders typically take months to complete—longer if issues are contested.

Understanding this timeline helps set realistic expectations. Divorce with custody issues rarely resolves in weeks. Planning for a process measured in months allows you to make better decisions and avoid rushing into unfavorable agreements.

Prioritize Your Children’s Stability

Children experience divorce differently than adults. They may feel caught in the middle, worried about loyalty to both parents, or anxious about changes in their daily lives. Throughout the divorce process, maintaining their routines, avoiding conflict in their presence, and reassuring them of both parents’ love helps minimize the impact on their wellbeing.

Courts notice which parents prioritize children’s stability. Demonstrating child-focused decision-making from the start of the divorce process strengthens your position and, more importantly, benefits your children.

Frequently Asked Questions

How long does a divorce with custody issues take in Illinois?

The timeline varies based on whether issues are contested. At minimum, at least one spouse must have been an Illinois resident for 90 days. The six-month separation period can be waived by agreement. Uncontested divorces where parents agree on custody may finalize in a few months. Contested cases can take a year or longer. Temporary orders can address custody while the divorce is pending, providing structure during the process.

Can both parents share custody equally in Illinois?

Yes. Illinois law allows for equal or near-equal parenting time arrangements when appropriate for the children involved. Courts don’t require one parent to be designated “primary.” The allocation of parental responsibilities can divide decision-making authority and parenting time in whatever manner serves the children’s best interests, including arrangements that give both parents substantial and equal involvement.

What if we agree on custody but not on other issues?

Illinois courts can address different issues on different timelines. Under In re Marriage of Cohn, 93 Ill. 2d 190, 443 N.E.2d 541 (Ill. 1982), courts have authority to reserve certain issues while entering orders on others. Parents who agree on parental responsibilities can formalize that agreement even while property division or other issues remain in dispute.

Does Illinois favor mothers in custody decisions?

Illinois law is gender-neutral. Courts are required to allocate parental responsibilities based on the child’s best interests, not parental gender. While mothers more often serve as primary custodial parents nationally, this reflects many factors beyond court bias—including pre-divorce caregiving patterns and parental choices during settlement. The percentage of fathers serving as custodial parents has increased from 16% in 1994 to nearly 22% in 2022.

What is the difference between custody and parental responsibilities?

Illinois replaced the term “custody” with “allocation of parental responsibilities” in 2016. The new framework divides traditional custody into two components: decision-making responsibility (authority to make major decisions about education, healthcare, religion, and extracurricular activities) and parenting time (the schedule determining when children are with each parent). The terminology change reflects Illinois’s focus on shared parenting and both parents’ continued involvement.

Moving Forward

Divorce with children involves both legal process and deeply personal decisions about your family’s future. Illinois’s no-fault system allows you to focus on what matters most—your children’s wellbeing and your relationship with them going forward.

The statistics show that most parents find ways to reach agreement on custody without prolonged court battles. Understanding Illinois’s approach to parental responsibilities, the importance of early involvement, and the options available for settlement can help you navigate this transition more effectively.

If you have questions about divorce and custody in Illinois, contact Lafata Law to discuss your situation.