Reviewed by Joshua P. Haid, Managing Partner
Custody Rights for Unmarried Mothers in Illinois
If you are an unmarried mother, here is something most guides to Illinois custody law will not tell you plainly, because most of them are written for fathers: you start from a position of strength. Under Illinois law, an unmarried mother is automatically her child’s legal parent from birth and holds sole parental responsibilities and parenting time — everything the law used to call “custody” — until the father takes legal steps to establish his own rights. The law is on your side from day one.
That does not mean there is nothing to think about. Establishing the father’s paternity is also how you secure child support, and once he does establish it, he can ask the court for parenting time. Knowing how all of this works lets you protect your children and make good decisions rather than anxious ones. The Women’s Divorce & Family Law Group by Haid and Teich LLP represents unmarried mothers across Chicagoland, and we make sure your rights are protected from the start.
Understand your rights and protect your position as a mother. Talk with a Chicago custody lawyer who represents women — free, confidential consultation, call 312-445-8830.
What are an unmarried mother’s custody rights in Illinois?
As an unmarried mother, you have full parental rights automatically. Because you gave birth to the child, your legal parentage is established without any further step, and until the father legally establishes his paternity, you hold sole decision-making authority and sole parenting time. In practical terms, that means you make the decisions about your child’s upbringing — schooling, health care, religion — and the child lives with you, without the father having a legal right to parenting time yet. An unmarried mother’s rights in Illinois are the same as a married mother’s; the difference lies entirely on the father’s side, in whether and how he establishes paternity.
How does an unmarried father get custody or parenting time?
He must first establish paternity — legal fatherhood — which he does not have automatically the way a husband does. Illinois provides a few paths, chiefly a Voluntary Acknowledgment of Parentage (a document both parents sign, often at the hospital, that establishes him as the legal father) or a paternity case in court, which can involve DNA testing (Illinois Parentage Act, 750 ILCS 46). Until he does one of these, he has no legal right to parenting time or decision-making. Once paternity is established, Illinois law treats both parents in a gender-neutral way: he can ask the court for parenting time and decision-making, and those are decided by the best interests of the child (750 ILCS 5/602.7). At that point you generally cannot simply withhold the child, so it is far better to have a clear court-ordered parenting arrangement than an informal one. (For how paternity is established in detail, see our paternity page.)
Securing child support as an unmarried mother
There is an important flip side to paternity: establishing it is also how you secure child support. A father has no legal obligation to pay support until his paternity is established, so if you are relying on informal payments, formalizing paternity protects you and your child. Once paternity is established, Illinois calculates child support using the income shares model, based on both parents’ incomes (750 ILCS 5/505), and the obligation is enforceable. For many unmarried mothers, establishing paternity is the single most important step toward reliable financial support for their child. (See our child support page.)
Protecting your rights as an unmarried mother
Your strong starting position is worth protecting with a clear legal footing rather than an informal arrangement that can unravel. We help unmarried mothers put a parenting plan and support order in place, establish the father’s paternity on terms that protect you and secure support, and respond if the father seeks parenting time, making sure any arrangement genuinely serves your child. One thing to know early: even without a court order, an unmarried parent generally needs the court’s approval to move a child out of state, so talk with us before planning a move. Whatever your situation, the goal is the same — to protect your children and your rights as their mother, from a position of strength.
Related: Child Custody · Paternity · Child Support · Mothers’ Rights · Relocation
Protect your position and your children from the start. Reach out for a free, confidential consultation.
