Paternity Law in Wisconsin 2026

A paternity primer

There’s a father’s name on the birth certificate, and both parents signed a voluntary acknowledgment at the hospital. They’ve been sharing time with the child informally for years. Suddenly, a dispute arises, and now everyone is asking the same question: Who has custody?

At Paternity Law in Wisconsin, you’ll take a focused look at how courts address parentage, decision-making authority, and placement in cases involving children born outside of marriage. Through practical discussion and examples drawn from real Wisconsin disputes, you’ll learn:

• The difference between legal custody and physical placement (and why a written order matters)
• How Wisconsin courts apply the 15 statutory “best interest” factors when determining custody and placement
• Default rights when no court order has been entered, and how they shape filing decisions, leverage, and hearing strategy
• The two primary methods of establishing fatherhood, including the scope and limits of a voluntary acknowledgment
• When and how child support obligations arise, and what must be addressed in a written judgment

Cut through common areas of confusion, including access to school and medical records, the legal weight of informal agreements, and the risks of proceeding without a defined court order.

Whether you represent mothers or fathers pursuing custody or placement, or you serve as a guardian ad litem, Paternity Law in Wisconsin will sharpen how you evaluate and present these claims.