Do I need the biological father's consent for stepparent adoption in Wisconsin?

Wisconsin has a six-month abandonment period in Wis. Stat. § 48.415, so the biological father's signature is the simplest route to a stepparent adoption but not necessarily the only one. What applies to you depends on your family's facts, including how involved he has been.

If he agrees: A father who supports the adoption can sign a voluntary consent. This is usually the most straightforward path, because there is nothing for the court to decide about his role.

If he has not been involved: Wis. Stat. § 48.415 addresses abandonment and uses a six-month period. Wisconsin's rules do not treat termination of parental rights as a separate step for stepparent adoptions, so the question is addressed within your adoption case. Whether your situation meets the abandonment standard is a fact-specific question for the Circuit Court, and the clerk in your county can tell you how to present it.

If he objects: A contested case turns on the details of your family's history. If he opposes the adoption, or you are unsure where he is or who the legal father is, talk with the Circuit Court clerk or a family law attorney about that specific issue.

Other Wisconsin points that may matter to you:

• Court: Your case is filed in the Circuit Court in your county. Wisconsin has 72 counties.
• Residency: Wisconsin sets no minimum residency period. Under Wis. Stat. § 48.82, the adopting stepparent must be a Wisconsin resident, married to the child's parent.
• Child's consent: Wisconsin does not require the child's consent. A child 14 or older attends the hearing unless the court orders otherwise.
• Home study: It is waived for stepparent adoptions under Wis. Stat. § 48.88.
• Timeline: Stepparent adoptions in Wisconsin typically take 3-6 months.
• Filing fee: The amount is set locally. The clerk in your county can confirm the current fee.

What to do next: Think through the father's history with your child. Consider whether he has been in touch, for how long he has been absent, and whether you know how to reach him. Those facts will tell you whether you are preparing a consent-based case or one that relies on abandonment. If you are unsure, the clerk's office can explain local procedure, and an attorney can advise on your particular situation.

How we help: StepParent Adoption 360 is a document preparation service, not a law firm. You answer questions online, and we prepare the complete court document package for your Wisconsin county. You then file it yourself, without an attorney. The cost is $349 for the first child and $99 for each additional child. Court-ready documents arrive within 24-48 hours after you finish the questions, and we back them with a 100% court acceptance guarantee. We have helped 385 Wisconsin families and more than 34,000 families nationally since 2001.