How do I adopt my stepson or stepdaughter in Missouri?

You adopt your stepchild in Missouri by filing a stepparent adoption petition with the Circuit Court in your county and completing the court's process, which typically takes about 3-6 months. Missouri's adoption law is in the Revised Statutes of Missouri Chapter 453, and the process is simple and clear.

Where you file: Adoptions are handled by the Circuit Court. Missouri has 115 counties, so your petition goes to the Circuit Court in your county. Kansas City, St. Louis, Springfield, Columbia and Independence families all follow the same statute, but each court can have its own forms and filing details, so the clerk is a good resource.

Residency: Missouri sets no minimum residency period for adopting (RSMo § 453.010). You do not have to wait out a set number of months before filing.

Consent: A child who is 14 or older has a consent role under RSMo § 453.030. Who else must consent depends on your family's situation, especially whether the other legal parent is involved, absent or unknown. Missouri also addresses abandonment, using a 6-month period (RSMo § 453.040). If your case involves a parent who will not consent or cannot be found, ask the Circuit Court clerk or an attorney about your specific facts.

Home study: For stepparent adoptions, the home study is waived under RSMo § 453.070. Missouri does require background checks to protect children, including a criminal background check for the stepparent. The clerk can confirm any other checks your county requires.

Basic steps:

• Gather the documents about your family, such as the child's birth certificate and your marriage information.
• Prepare the petition and the consent forms, using the language the court expects.
• File with the Circuit Court clerk and pay the filing fee.
• Complete the background check and attend the court hearing.
• After the adoption is final, contact the Missouri Department of Health and Senior Services Bureau of Vital Records about the child's birth record.

Cost: Court filing fees typically run $200-$500, and the total cost of a stepparent adoption is typically under $1,000 when you handle the filing yourself. Hiring an attorney commonly costs $3,000-$5,000 or more.

Timeline: A stepparent adoption in Missouri typically takes 3-6 months from filing to finalization.

If your stepchild is an adult: Missouri allows adult adoption. An adult who is 18 or older can give written consent on their own behalf, and the process is often quicker, at about 4-8 weeks. The statute does not require the child home study for adults. Your clerk can confirm the details for your county.

Forms matter: Missouri requires specific forms and language, and a court can reject paperwork that is wrong, which adds delay. Get the paperwork right before you file.