When Is Discovery Needed in an Illinois Divorce?

 Posted on August 13, 2026 in Division of Assets

Getting a divorce comes with difficult financial questions. Depending on your situation, you and your spouse might own many valuable assets. To make sure everything is accounted for during property division, you might have to go through formal discovery. Discovery is the formal process spouses use to exchange information and documents during a divorce. This can seem overwhelming, but a Naperville, IL divorce lawyer can help make sure your interests are protected.

At Calabrese Associates, P.C., we provide clients with one-on-one assistance during the discovery process. With over 30 years of experience, we know what questions to ask and what steps need to be taken to uncover hidden assets. If we can’t help you reach a property settlement outside of court, we can fight for you in a divorce trial.

Is Financial Disclosure Mandatory in an Illinois Divorce?

Financial disclosure is an important, often required part of the divorce process in Illinois. This is when both spouses need to share accurate information about their income, debts, property, and expenses. In some cases, this includes completing sworn financial affidavits and providing documents to support the information they report.

Formal discovery is a separate process that can be used when the information already provided does not answer every question or needs to be verified. It may be needed when financial information is missing, one spouse suspects that assets or income are being hidden, or the couple owns complicated assets such as a business or multiple properties. Discovery lets each spouse request documents, ask written questions, or question the other spouse under oath. It gives both sides a way to check what was disclosed and find anything that was left out, so they have a clear picture of the couple’s property and finances before decisions are made about property or support.

Full disclosure also helps prevent one spouse from hiding assets or downplaying income. A spouse who knowingly gives false or misleading information on a financial affidavit can face serious court penalties (750 ILCS 5/501).

What Assets Do You Need to Look For in Discovery?

Discovery should cover every asset and debt tied to the marriage. Common items include bank accounts, retirement accounts, pensions, and investment portfolios. Real estate, vehicles, and business interests should also be reviewed closely, along with any income from a side job or rental property.

Debts deserve just as much attention as assets. Credit card balances, personal loans, and mortgages all factor into the final settlement. Spouses should also look for hidden or overlooked property, such as cryptocurrency, collectibles, or stock options through an employer.

A thorough review can reveal assets that one spouse did not know existed. Bank statements, tax returns, and pay stubs often uncover details that would otherwise stay hidden. Missing even one asset can lead to an unfair settlement, so a careful approach is worth the effort.

Business ownership deserves special attention. A spouse who owns a company or holds a share in one may need a formal valuation to determine its value. This process can involve reviewing profit and loss statements, contracts, and business bank accounts.

What Tools Can You Use During Discovery in 2026?

Illinois divorce law gives spouses several formal tools to gather information during discovery. Each tool serves a different purpose, and an attorney can help decide which ones fit a case. Simple cases may only need a few written questions and documents, while cases involving a business or multiple properties often call for several tools at once.

Interrogatories

Interrogatories are written questions sent from one spouse to the other. The spouse who receives them must answer in writing and under oath. These questions often focus on income sources, account balances, property ownership, and other financial details. Interrogatories are useful for gathering basic facts early in the case.

Requests for Production

A request for production asks the other spouse to hand over specific documents. These may include bank statements, tax returns, pay stubs, retirement account statements, or business records. Requests for production help confirm that the answers given in interrogatories match the paper trail.

Deposition

A deposition is an interview conducted under oath, usually with an attorney present for both sides. The person being questioned must answer honestly, and their responses are recorded by a court reporter. Depositions allow attorneys to ask follow-up questions and observe how a witness responds, which is not possible with written discovery alone.

Can You Settle a Divorce After Discovery?

Many divorces settle once discovery is complete. Once both sides have a full picture of the marital estate, negotiations often become easier. Spouses and their attorneys can review the disclosed information and work toward a fair division of property, debt, and support obligations.

Settling after discovery can save time, reduce legal costs, and lower the stress that comes with a courtroom trial. A settlement also gives both spouses more control over the outcome, rather than leaving major decisions in the hands of a judge. Many spouses find it easier to reach an agreement once they no longer suspect the other side of hiding information, since discovery removes much of the guesswork from the negotiation process.

Even so, some cases still need to go to trial, especially when one spouse disputes the disclosed information or the parties cannot agree on a fair outcome. Mediation can also serve as a middle step, giving both sides a chance to work with a neutral third party before deciding whether to go to trial.

How Long Does Discovery Take?

The length of discovery depends on the complexity of the case. A simple divorce with few assets might finish discovery in a couple of months. A case involving a business, multiple properties, or hidden assets can take much longer, sometimes stretching past a year.

Delays can happen when one spouse is slow to respond, withholds documents, or argues that a request asks for too much information. Courts can step in to resolve these disputes and set deadlines to keep the case moving. Staying organized and responsive throughout the process can help avoid unnecessary delays and additional legal costs. An attorney who knows what to request and how to respond to opposing requests can keep the process on track.

Contact Our Naperville, IL Family Law Attorney

Discovery plays a central role in reaching a fair divorce settlement, and missing even one asset can affect the outcome for years to come. If you are heading into a divorce and want to protect your financial future, contact our Naperville, Illinois divorce lawyer at Calabrese Associates, P.C.. Call 630-393-3111 to schedule a consultation.