Private Adoption in Washington State: Costs, Consent, and ICPC

Private adoption in Washington State runs through Chapter 26.33 of the Revised Code of Washington and typically takes nine to eighteen months from the start of the home study to the final decree. You can work with a licensed child-placing agency or arrange an independent placement directly with a birth parent, but both paths require the same court filings, background checks, and judicial approval. Budget somewhere between $20,000 and $50,000 for an agency-assisted adoption, and expect less for an independent one, though legal fees and the home study still add up quickly.

What It Costs

The total depends mostly on whether you go through an agency or arrange the placement yourself. Agency-assisted adoptions bundle matching, birth-parent counseling, and case management into a single fee structure. Independent adoptions skip that line item but still carry every other cost.

Home study: $2,000 to $5,000, depending on the evaluator and the household.
Agency placement fees: $10,000 to $30,000 when you use one.
Attorney fees and court costs through finalization: $2,000 to $5,000.
Birth-parent expenses: variable, from a few hundred dollars to several thousand, limited by law to the categories described below.

The federal adoption tax credit and, for service members, military reimbursement can give a meaningful share of this back after the fact.

Who Can Adopt

Any person who is at least eighteen and legally competent can petition to adopt.¹ You do not have to be married. Single petitioners qualify, married couples and registered domestic partners usually file jointly, and one spouse can petition alone.

Prospective adoptive parents must have lived in Washington for at least one year before filing the petition.² This keeps the case in a Washington Superior Court through finalization.

The Home Study

Before any child is placed in your home, a court-authorized person or agency must complete a pre-placement report, usually called a home study.³ It covers every adult in the household, not just the petitioner.

At minimum, the evaluator will collect:

Washington State Patrol and federal FBI fingerprint background checks for every adult in the home.³
Financial documentation such as tax returns, pay stubs, and statements of assets and debts.
Medical clearances for physical and mental fitness to parent.
Written personal references from people outside your family.
In-person interviews with everyone in the household and a safety walk-through of the home.

A completed report is valid for two years. If your adoption stretches past that, you’ll pay for a new report and a fresh criminal background check.³

Birth Parent Consent and Revocation

No adoption moves forward without proper consent from each birth parent whose rights have not already been terminated. Washington requires a mandatory 48-hour wait after the child’s birth before a birth parent can sign a consent.⁴ Any consent signed inside that 48-hour window is invalid. The written consent must be signed under penalty of perjury and state clearly that the parent is permanently giving up all legal rights.

Revocation is where many adoptive parents feel the most anxiety. Before the court approves the consent, a birth parent can revoke at any time by delivering or mailing a written notice to the clerk of the court.⁴ After the court approves it, revocation is far harder: only within one year, and only by proving fraud or duress by whoever requested the consent, or lack of mental competency at signing. After that one-year window, the consent is permanent.

When the Birth Father Is Unknown or Absent

Private adoptions often involve a birth father who is unknown, uninvolved, or unwilling to consent. An alleged father who has been properly served must respond within twenty days (thirty if served out of state). If he does not respond, that is grounds for the court to terminate his parental rights.⁵

Even if he does respond, the court can terminate his rights on clear and convincing evidence that it serves the child’s best interest and that he substantially failed to fulfill parental duties, or that he is withholding consent against the child’s welfare.⁶ Consent can also be dispensed with where the parent has been convicted of certain crimes, including rape or sexual assault that resulted in the child’s conception.

What You Can Pay a Birth Parent For

Washington draws a hard line between permitted adoption expenses and anything resembling the purchase of a child. Selling or purchasing a minor is a crime. The expenses adoptive parents are allowed to pay on behalf of a birth parent are limited to:

Prenatal, hospital, and medical expenses related to the birth.
Attorney fees and court costs connected to the transfer of custody.

Living expenses, gifts, and cash payments to a birth parent are not authorized and could jeopardize the adoption or trigger criminal liability.⁷ If a birth parent needs help that goes beyond medical and legal costs, talk to your attorney before paying anything.

Out-of-State Placements and the ICPC

If the birth parent lives in another state or the baby is born out of state, the Interstate Compact on the Placement of Children (ICPC) governs. Both the sending state and Washington must approve the placement before the child can cross state lines. Federal law gives the receiving state sixty calendar days to complete the home study review and send a written report back. ICPC approval expires after six months if placement has not occurred.

The practical consequence: you cannot pick the baby up at the hospital and drive home. Leaving the birth state before ICPC approval clears can lead to criminal charges and can derail the adoption. Plan on staying in the birth state anywhere from several days to several weeks while paperwork moves.

If the Child May Have Tribal Heritage

Every adoption petition filed in Washington must state whether the child is or may be an Indian child under the federal Indian Child Welfare Act.⁸ If ICWA applies, different rules govern notice to the tribe, placement preferences, and consent. Consent of a birth parent cannot be signed until more than ten days after birth (not 48 hours) and must be recorded before a court; it can be withdrawn for any reason until the final decree is entered.⁴ Noncompliance can invalidate the adoption even after it is finalized, so get an attorney experienced in ICWA cases whenever tribal affiliation is a possibility.

Filing the Petition and Finalizing

Once the child is placed, you file a formal adoption petition in Superior Court. It must include background information on the child and the adoptive parents, confirmation that consents are valid or have been properly dispensed with, and a statement about possible tribal affiliation.⁵

A post-placement supervision period follows. A court-approved evaluator visits the home, confirms the child is adjusting, and writes a report. The court then sets a finalization hearing. At that hearing, the judge makes two core findings: that all required consents are valid or have been legally dispensed with, and that the adoption serves the child’s best interest.⁹ The judge then enters a final decree, which creates the legal parent-child relationship as if the child had been born to you. The court notifies the Washington State Department of Health, which issues a new birth certificate listing the adoptive parents.

Open Adoption Agreements

Many birth parents and adoptive families want continuing contact after finalization. Washington allows written agreements covering communication, visits, or other contact.¹⁰

Here is the detail many families miss: an open adoption agreement is only legally enforceable if the court enters it as an order. To get that order, it must be signed by the adoptive parents, any birth parent whose rights have not been terminated, and the child’s attorney or guardian ad litem if one has been appointed, and the court must find the contact serves the child’s best interest. If someone later stops honoring a court-ordered agreement, the other side can sue to enforce it and may recover attorney fees, but the adoption itself cannot be undone over broken contact.¹⁰

Getting Money Back: Federal Tax Credit and Military Reimbursement

The federal adoption tax credit can offset a large share of your costs. For the 2026 tax year, the maximum credit is $17,670 per child, and up to $5,120 of it is refundable, meaning you can receive it even if you owe no federal income tax.¹¹ Qualified expenses include adoption fees, court costs, attorney fees, travel, and other costs directly tied to the legal adoption of an eligible child. The credit phases out above a modified adjusted gross income threshold; for 2025 the phase-out began at $259,190 in MAGI and eliminated the credit entirely above $299,190, with 2026 figures expected to be slightly higher.¹² You claim the credit on IRS Form 8839, and for a domestic private adoption you generally claim qualified expenses in the tax year after you pay them, unless the adoption finalizes in the same year. Keep thorough records.

Active-duty service members, including reserve and National Guard members called to active duty for 180 or more consecutive days, can also seek reimbursement from the Department of Defense for qualifying adoption expenses, up to $2,000 per child and no more than $5,000 per calendar year.¹³ You file DoD Form 2675 through the Defense Finance and Accounting Service within two years of finalization. This reimbursement stacks with the federal tax credit.

1
Washington State Legislature. RCW 26.33.040 – Petitions
2
Washington State Legislature. Revised Code of Washington Chapter 26.33 – Adoption
3
Washington State Legislature. RCW 26.33.190 – Preplacement Report – Requirements – Fees
4
Washington State Legislature. RCW 26.33.160 – Consent to Adoption – When Revocable – Procedure
5
Washington State Legislature. Revised Code of Washington 26.33.110 – Petition for Adoption
6
U.S. Department of Health and Human Services. Consent to Adoption – Washington
7
U.S. Department of Health and Human Services. Regulation of Private Domestic Adoption Expenses – Washington
8
Washington State Legislature. Revised Code of Washington 26.33.040 – Petitions
9
Washington State Legislature. RCW 26.33.240 – Hearing on Petition
10
Washington State Legislature. RCW 26.33.295 – Agreements Regarding Communication and Contact
11
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
12
Internal Revenue Service. Adoption Credit
13
Military OneSource. Department of Defense Adoption Reimbursement