By the Attorneys at Greenberg & Sinkovits, LLC | Chicago Divorce Attorneys | Illinois Family Law

If you are thinking about divorce in Chicago, you are probably searching for answers to questions you never expected to have. What happens first? How long will this take? What about your children, your home, your finances? These are the questions that keep people up at night, and they are the same questions we hear from clients across Chicago, Naperville, Park Ridge, and the surrounding communities every week. Understanding the divorce process in Illinois does not have to feel overwhelming. This guide walks you through each stage of a Chicago divorce from start to finish so you know what to expect before you take a single step.
If you have questions about your situation right now, our team is here to help. Reach us by phone at 312.548.6368or through our online contact form to get clear answers and a plan that works for your circumstances.
Filing For Divorce In Illinois: What Does It Actually Take To Get Started?
The first formal step in the divorce process is filing a Petition for Dissolution of Marriage with the circuit court in the county where you or your spouse lives. If you are in Chicago, that means Cook County. If you are in Naperville or the surrounding western suburbs, DuPage County handles your case. Illinois requires that at least one spouse has lived in the state (or been stationed here in the armed forces) for 90 days. This is a requirement that can be met either before filing or before the final judgment is entered.
Illinois is a no-fault divorce state. You do not need to prove that your spouse did anything wrong. Under the Illinois Marriage and Dissolution of Marriage Act (IMDMA), the only recognized grounds for divorce are irreconcilable differences, which means the marriage has broken down with no reasonable chance of being restored. This removes a significant emotional burden from the process and allows both parties to focus on practical decisions rather than assigning blame.
Once the petition is filed, your spouse must be formally served with the documents. After service within Illinois, your spouse has 30 days to respond. This is the point where the legal process officially begins and where having clear guidance matters most.
Temporary Orders In Illinois: How Are Immediate Issues Handled While Your Case Is Pending?
Divorce cases in Cook County and DuPage County can take months or longer to fully resolve, so Illinois courts have a process for addressing urgent matters while the case is pending. These are called temporary orders, and they cover things like who lives in the marital home, how bills and financial obligations are managed during the process, and how time with children is structured.
When children are involved, the IMDMA uses parental responsibilities as the umbrella term for everything that was once called custody and visitation. It covers two distinct components:
- Significant Decision-Making Responsibilities: The authority to make major decisions about the child's education, healthcare, religion, and extracurricular activities. These responsibilities can be allocated to one parent or divided between both.
- Parenting Time: The actual schedule and physical time the child spends with each parent.
Illinois retired the older terms custody and visitation in 2016, and using the correct terminology matters in a legal setting. Understanding what each concept covers helps you participate meaningfully in conversations about your children's future.
One important update: under an amendment to the IMDMA effective January 1, 2025, a parenting plan or allocation judgment approved by the court during a divorce is no longer treated as a temporary order. Once entered, it is considered final for purposes of modification and appeal, meaning the stricter legal standards for changing it apply right away, and it can be appealed. The one exception is if the underlying case is later dismissed, in which case the parenting plan becomes void and unenforceable. Other temporary orders, such as those addressing the marital home or financial obligations, still simply give your family structure while the broader case moves forward. However, decisions about your children now carry lasting legal weight earlier in the process than many parents expect. This makes thoughtful preparation before agreeing to a parenting plan more important than ever.
Financial Disclosure And Discovery: Why Transparency Is Critical In An Illinois Divorce?
One of the most important phases of any Chicago divorce is financial disclosure. Both spouses are required to provide complete and accurate information about their income, assets, debts, and expenses, and Illinois law imposes penalties for intentionally false or misleading financial affidavits. Courts in Illinois rely on this information to make decisions about property division, spousal maintenance, and child support.
In high-asset cases, particularly those involving business ownership, investment portfolios, or significant real estate, the discovery phase often requires coordination with forensic accountants, appraisers, and business valuation professionals. At Greenberg & Sinkovits, LLC, we approach these cases the way a project manager would, ensuring the right professionals are engaged at the right time to protect what our clients have spent years building.
A critical concern for business owners is the risk of commingling finances. If business and personal accounts are not kept strictly separate, a court may determine that what started as a non-marital business has taken on a marital character through a concept known under Illinois law as transmutation. Using marital funds to pay a business debt, for example, typically entitles the marital estate to reimbursement. In cases where commingling is extensive enough that contributions lose their separate identity, it can change how a court classifies the asset entirely. Addressing this issue properly during the divorce process requires careful documentation and a strategic approach to valuation.
Dividing Property In Illinois: What Does Equitable Distribution Actually Mean For You?
Illinois is an equitable distribution state. Marital property is divided fairly based on the circumstances of the marriage, but fair does not automatically mean equal. A judge considers many factors, including the length of the marriage, each spouse's current financial situation, the contributions each spouse made to the household, and the economic impact of each possible division.
For high-asset divorces in Chicago, Naperville, and the North Shore communities, property division often involves negotiations around real estate, retirement accounts, business interests, and investment portfolios. Courts in Cook County and DuPage County often prefer to award a functioning business to the spouse who operates it and offset that value by assigning other assets, such as the marital home or retirement accounts, to the other spouse. This approach keeps the business intact while achieving a fair overall result.
Illinois courts also examine the difference between enterprise goodwill and personal goodwill when a business is being valued. Enterprise goodwill is attached to the business itself and would survive if the owner left the company. Personal goodwill is tied to the owner's individual relationships, skill, and reputation. These two forms of goodwill are treated differently under Illinois law: personal goodwill is not divisible marital property, while enterprise goodwill can be included in the value of the business. Drawing that distinction accurately can significantly affect the outcome of property division for business owners.
Spousal Maintenance In Illinois: How Is Financial Support Determined After Divorce?
Illinois uses the term spousal maintenance rather than alimony. Whether maintenance is awarded, and for how long, depends on factors outlined in the IMDMA. These include the income and earning capacity of each spouse, the length of the marriage, the standard of living established during the marriage, and each party's contributions to the other's career or education.
Illinois provides a statutory formula for calculating maintenance amounts and duration, but it applies only when two conditions are met: the couple's combined gross annual income is under $500,000, and the paying spouse has no existing child support or maintenance obligation from a prior relationship. When either condition is not met, judges have broad discretion to set aside the formula and design an arrangement that reflects the family's actual financial circumstances and established lifestyle. This level of judicial discretion makes preparation and documentation particularly important in high-asset cases.
Federal tax treatment is another consideration. For divorces finalized after December 31, 2018, maintenance payments are not tax-deductible for the paying spouse and are not taxable income to the recipient, a change made by the 2017 Tax Cuts and Jobs Act. Older maintenance orders keep their original tax treatment even if modified, unless both parties expressly agree in the modification order that the new rules apply. This makes thoughtful settlement structuring more consequential for higher earners in Chicago and the surrounding communities.
Children And Divorce In Illinois: What Standard Guides Every Decision A Court Makes?
When children are part of a divorce, Illinois courts apply one overriding standard to every decision: the best interests of the child. Under the IMDMA, judges evaluate a defined set of statutory factors to determine how significant decision-making responsibilities and parenting time should be structured. These factors include the child's adjustment to home, school, and community; the mental and physical health of all parties; each parent's willingness to support the child's relationship with the other parent; and the child's own preferences depending on age and maturity.
One point that every parent should understand clearly: child support belongs to the child under Illinois law. Parents cannot waive child support in a prenuptial agreement, and they cannot trade parenting time for a reduction in support. These matters are always decided based on the child's best interests at the time of the divorce, regardless of any prior agreement between the spouses.
Reaching A Settlement Or Going To Trial: What Are Your Options In The Chicago Divorce Process?
The majority of Illinois divorce cases, including those filed in Cook County and DuPage County, are resolved through negotiation and settlement rather than a courtroom trial. Mediation is a commonly used process in which a neutral third party helps both spouses work through disagreements on property, parenting, and support in a structured and private setting.
An uncontested divorce, where both spouses agree on all major terms, can often move significantly faster than a contested case. Contested divorces, particularly those involving complex finances or disputed parenting arrangements, take longer and require more thorough preparation. If a case does proceed to trial, a judge reviews the evidence and rules on any unresolved issues. The quality of preparation, the strength of the documentation, and the depth of professional support behind your case all have a direct impact on how that process unfolds.
Practical Next Steps: What Should You Do After The Divorce Decree Is Entered In Illinois?
Once a divorce decree is entered in Illinois, the legal proceedings are formally complete. But important practical steps follow. Retirement accounts divided in a divorce often require a separate court order called a Qualified Domestic Relations Order, or QDRO, to properly transfer funds to the receiving spouse. Property deeds need to be updated to reflect new ownership. Beneficiary designations on life insurance policies, retirement plans, and financial accounts should be reviewed and changed where appropriate.
For clients in Chicago, Naperville, Park Ridge, and throughout the Chicago metropolitan area, these post-decree steps are easy to overlook in the relief that follows a difficult process. Addressing them promptly ensures that the terms of your decree are properly carried out and that your financial life is fully restructured for what comes next.
Frequently Asked Questions About The Chicago Divorce Process
How long does the divorce process take in Chicago?
The timeline depends on whether the divorce is contested or uncontested. An uncontested divorce in Cook County can sometimes be finalized within a few months. Contested divorces involving complex assets, business interests, or parenting disputes often take a year or longer depending on the specific circumstances of the case.
Do I need to prove fault to get divorced in Illinois?
No. Illinois is a no-fault divorce state. Under the IMDMA, the only grounds for divorce are irreconcilable differences. You do not need to show that your spouse did anything wrong to file for divorce in Chicago or anywhere else in Illinois.
How is property divided in a Chicago divorce?
Illinois is an equitable distribution state. Marital property is divided fairly based on the circumstances of the marriage, but this does not automatically mean a 50/50 split. The length of the marriage, each spouse's financial situation, and the contributions of each party all factor into how assets are allocated by the court.
Can a prenuptial agreement affect the divorce process in Naperville or Chicago?
In many cases, yes. Prenuptial agreements in Illinois must be entered into voluntarily, and an agreement can be challenged if it was unconscionable when signed and the challenging party did not receive fair financial disclosure, waive that disclosure in writing, or otherwise have adequate knowledge of the other spouse's finances, which is why full and fair disclosure at signing is strongly advised. Even a valid prenuptial agreement cannot predetermine parental responsibilities or child support. Those decisions are always made based on the child's best interests at the time of the divorce.
Ready To Take The Next Step? Greenberg & Sinkovits, LLC Is Here To Help

The divorce process in Illinois involves real legal complexity, and clear guidance from the start makes a meaningful difference in how things unfold. Whether your situation involves children, a family business, significant assets, or simply a marriage that has run its course, you deserve to move forward with a full understanding of your rights and a thoughtful approach to protecting what matters most.
If you are facing a divorce in Chicago, Naperville, Park Ridge, or the surrounding communities, reach the team at Greenberg & Sinkovits, LLC by phone at 312.548.6368 or through our online contact form. We are here to help you understand your options, plan your next steps, and move forward with confidence.
Disclaimer: This blog is intended for informational purposes only and does not establish an attorney-client relationship. It should not be considered as legal advice. For personalized legal assistance, please consult our team directly.
