You may see this in divorce papers, a financial affidavit, or a lawyer's letter asking whether a house, paycheck, bank account, retirement fund, or settlement is "marital" or "separate." Those labels decide whether property is shared between spouses or kept by one spouse alone. In general, marital property is property either spouse acquires during the marriage, while separate property belongs to one spouse because it was owned before the marriage or came to that spouse alone by gift or inheritance. Some assets can be partly both, especially when money gets mixed together.

The distinction matters because courts do not divide everything the same way. In Illinois, the Illinois Marriage and Dissolution of Marriage Act (750 ILCS 5/503) says marital property is divided in "just proportions," which means fairly, not always 50/50. Separate property is usually set aside to the spouse who owns it, unless it has been commingled or changed in character.

That can affect an injury claim more than people expect. A personal injury settlement may be partly separate and partly marital depending on what it pays for. Compensation for pain and suffering tied to one spouse may be treated differently from reimbursement for lost wages during the marriage or medical bills paid with marital funds. How the money is deposited, spent, or mixed with joint accounts can change the outcome.