Child Custody Laws in Illinois for Unmarried Parents

Many people assume that marriage determines who has legal custody rights over a child. For unmarried parents in Illinois, the process works differently, and the details matter.

Illinois law does not automatically give an unmarried father the same legal rights as a married father until certain steps are taken. At the same time, an unmarried mother does not have unlimited authority over parenting decisions once parentage is legally established for both parents.

Understanding how custody, parenting time, and decision-making responsibilities work for unmarried parents can help you protect your relationship with your child and avoid unnecessary conflict.

At Conniff & Keleher, LLC, our Chicago and Oak Park attorneys help unmarried parents understand their rights and navigate parentage and custody matters under Illinois law.

If you are an unmarried parent trying to understand your custody rights in Illinois, here is what you should know.

Custody Rights for Unmarried Parents in Illinois

Illinois family law no longer uses the term “custody” on its own. Under the Illinois Marriage and Dissolution of Marriage Act (750 ILCS 5), courts address two separate concepts instead: the allocation of parental responsibilities and parenting time.

For unmarried parents, an important starting point is legal parentage. An unmarried mother generally has sole parental responsibility by default until the child’s father establishes legal parentage. Once parentage is legally established for an unmarried father, he can ask the court to allocate parenting time and decision-making responsibilities, just as a married father could in a divorce case.

In other words, marital status affects the starting point, but it does not determine the final outcome. Once parentage is established, Illinois law generally treats unmarried and married parents the same way when allocating parental responsibilities.

Establishing Legal Parentage

Before an unmarried father can seek parenting time or a role in decision-making, legal parentage generally needs to be established first.

There are two common paths to establishing parentage in Illinois:

• Voluntary Acknowledgment of Parentage (VAP): Both parents sign this form, often at the hospital after the child is born or later through the Illinois Department of Healthcare and Family Services.
• Court action under the Illinois Parentage Act of 2015: Either parent can ask a court to establish parentage, which may involve genetic testing if parentage is disputed.

Until legal parentage is established, an unmarried father does not have legally enforceable custody or parenting time rights, even if he has been involved in the child’s life.

Parenting Time and Decision-Making Responsibilities

Once parentage is established, Illinois courts address two separate categories for unmarried parents, the same as they would for divorcing parents:

• Parenting time: The schedule for when the child is with each parent.
• Decision-making responsibilities: Authority over major decisions such as education, health care, religion, and extracurricular activities.

Courts base these decisions on the best interests of the child. Common factors include the wishes of the child and each parent, the child’s adjustment to home, school, and community, each parent’s willingness to support the child’s relationship with the other parent, any history of abuse or neglect, and the distance between the parents’ homes.

Decision-making responsibilities can be allocated solely to one parent or shared jointly, depending on the parents’ circumstances and ability to cooperate.

Can Unmarried Parents Share Custody?

Yes. Once parentage is established, Illinois law does not presume against unmarried parents sharing parenting time or decision-making responsibilities.

Courts can allocate significant parenting time to both parents and joint decision-making responsibilities when doing so serves the child’s best interests. This can look similar to what a married couple would receive in a divorce.

Whether responsibilities end up shared or allocated primarily to one parent depends on the specific facts of the case, not on whether the parents were married.

What Happens if Parents Disagree?

If unmarried parents cannot agree on parenting time or decision-making responsibilities, either parent can file a petition asking the court to allocate parental responsibilities.

Many Illinois counties require or encourage mediation before a contested parenting matter goes to trial, giving parents a chance to resolve disagreements without a judge deciding for them.

If mediation is unsuccessful or is not appropriate for the situation, the court will decide based on the best interest factors described above. Existing parenting orders can also be modified later if there has been a substantial change in circumstances.

When to Speak With a Family Law Attorney

Unmarried parents should consider speaking with an attorney when the child is born or sooner but, most importantly, before signing a Voluntary Acknowledgment of Parentage, or as soon as a disagreement arises about parenting time or decision-making responsibilities.

An attorney can help explain what legal parentage means for your specific situation, help you file or respond to a parentage or parenting time petition, and prepare you for court if the matter cannot be resolved by agreement.

At Conniff & Keleher, LLC, we help unmarried parents in Chicago, Oak Park, and throughout Illinois understand their rights and work toward parenting arrangements that reflect their child’s best interests. To learn more about custody and parentage matters as an unmarried parent, contact Conniff & Keleher to discuss your situation.

FAQs

This article is for educational purposes only and does not constitute legal advice. Custody and parentage outcomes depend on individual facts and the application of Illinois law.