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Can I adopt my stepchild who is a newborn or infant in Washington?

3 min readHelping families since 2001Washington
In this answer · 7 sections

Yes. In Washington you can pursue a stepparent adoption of a stepchild who is a newborn or infant, filing in the Superior Court in your county. What matters is meeting the state's requirements and sorting out the other parent's role, not the baby's age.

Residency and timing:

  • Washington has no minimum residency period before you can file (RCW 26.33.030).
  • Washington doesn't specify a minimum length of marriage, so a recent marriage is not a barrier on that point.
  • Stepparent adoptions here typically take about 3-6 months from filing.
  • A baby can't consent, and Washington only requires a child's consent at age 14 or older (RCW § 26.33.160). For an infant, the question is whether the other parent's consent is needed.
  • Parental consent is required for anyone under 18 (RCW 26.33.160(1)). So if the other legal parent is involved, you will usually be asking for that parent's consent.
  • If the other parent won't consent, abandonment may come into play (RCW § 26.33.120). Washington sets no fixed number of months for it. The court looks at the parent's overall conduct.
  • Because a newborn's life has been short, whether a parent's conduct amounts to abandonment depends on the specific facts. If the other parent is unknown, unreachable or disputes the adoption, talk to the Superior Court clerk or an attorney about that particular situation.

Background checks and home study:

  • Washington requires criminal background checks for adoptive parents.
  • Home study requirements are covered by RCW 26.33.220. Washington allows courts to waive the home study in some stepparent adoptions, but whether it applies to your family is something the Superior Court clerk can confirm.

Birth records:

After an adoption, a child's birth record is handled through the Washington State Department of Health Center for Health Statistics. The clerk can tell you how that works once your decree is entered.

Why families adopt early:

  • Your legal role is settled from the start, including decisions about medical care and insurance.
  • Your child grows up with the same legal family they have always known.
  • It brings added security, such as potential Social Security survivor benefits.

What it costs:

Court filing fees in Washington typically run $200-$500, and the total typically comes to under $1,000. Hiring an attorney commonly costs $3,000-$5,000 or more.

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 county.

Stepparent adoption in Washington at a glance

Court
Superior Court
Residency before filing
No minimum period
Typical timeline
3-6 months
Court filing fee
$200-$500
Child must consent at age
14
Home study
May be required
Washington families we've helped
1,104

Full Washington guide →

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Published by Douglas Brown & the StepParent Adoption 360 team

Adoption document specialists · 25+ years of experience · 34,000+ families helped.

Page layout updated . Individual answers have different research histories. This is general information; court requirements and individual circumstances can differ. Document preparation service, not a law firm.

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