When going through a divorce, one of the most important and often confusing issues is how property will be divided. Illinois follows the principle of “equitable distribution,” which means that marital property is divided fairly but not always equally between spouses. An important part of the process is determining which assets belong to the marriage and which are considered separate. However, the line between the two can become blurred, especially when assets have been combined or shared during the marriage. This is known as co-mingling.
Understanding co-mingled property and its potential impact on your divorce settlement is crucial to protecting your financial interests.
Defining Co-Mingled Property
Co-mingled property refers to non-marital property that has been mixed with marital property in such a way that it may lose its original classification. In other words, when one spouse brings property into the marriage that was originally theirs alone, such as an inheritance, gift, or asset acquired before the marriage, and that property becomes intertwined with marital assets, it may be considered co-mingled.
In Illinois, co-mingling can occur in several common ways, and the court’s handling of it depends heavily on the specifics of the case and whether the original asset can still be traced.
Example of Co-Mingled Property
To better understand how this works in practice, the following is a real-world example:
Mixing Bank Accounts
Let’s say you received a $10,000 inheritance from a relative before your marriage. If you kept that money in a separate account in your name only, it would likely be considered non-marital property. However, if you deposited it into a joint bank account and regularly used it for household expenses, it may become co-mingled and potentially subject to division.
Illinois Law on Property Classification
Under the Illinois Marriage and Dissolution of Marriage Act (750 ILCS 5/503), property acquired during the marriage is presumed to be marital, regardless of who holds the title. However, non-marital property includes:
- Property acquired before the marriage
- Inheritances received by one spouse
- Gifts received by one spouse
- Property acquired in exchange for non-marital property
- Property excluded by valid agreement such as a prenuptial agreement
But once non-marital property becomes co-mingled, the classification can change.
If the non-marital property cannot be clearly traced back to its original source, it may be treated as entirely marital property. If it can be traced, courts may determine that a portion remains non-marital while the rest is marital.
Tracing the Source of Funds
The burden of proving that an asset is non-marital rests with the spouse claiming it. This often requires detailed records, such as bank statements, receipts, or other documentation showing the original source of the funds and how they were used.
Illinois courts apply a principle known as “transmutation” when determining whether a non-marital asset has been converted into a marital one. This occurs when the actions of one or both spouses demonstrate the intention to treat the asset as marital property, for instance, by titling it jointly or using it for mutual benefit.
Protecting Non-Marital Property
If you’re concerned about protecting non-marital property, here are a few best practices:
- Keep assets separate
- Do not deposit non-marital funds into joint accounts or use them for shared expenses without documentation.
- Maintain clear records
- Save all relevant financial documents and create a paper trail
- Consider a prenuptial or postnuptial agreement
These documents can specify how property will be handled in the event of divorce.
Even if you’re already married, a postnuptial agreement may offer some protection if you want to clearly define what is and isn’t marital property.
Why It Matters
Failing to recognize and address co-mingled property early in the divorce process can lead to costly surprises. Whether you believe you have a right to retain certain assets or are unsure about how to divide shared property, speaking with a knowledgeable family law attorney is essential.
We’re Here to Help
At Sterk Family Law, we understand how stressful and overwhelming property division can feel, especially when the lines between marital and non-marital assets have blurred. Our team is here to provide clarity, explain your options, and advocate for what’s fair. If you have questions about co-mingled property or need guidance through your divorce, contact us today to schedule a consultation.
Let us help you understand what’s yours, what may be shared, and how to move forward with confidence.