How to Adopt a Family Member’s Child: Consent, Petition, and Costs

To adopt a family member’s child, you have to end the biological parents’ legal rights, file an adoption petition in the county where you live, satisfy whatever home study your court requires, and finalize the adoption at a hearing where a judge signs the decree. Kinship adoptions follow the same legal framework as any other adoption, but relatives often get streamlined treatment on home studies and some procedural steps, which cuts both time and expense.

Costs range from a few hundred dollars for an uncontested case you handle yourself to $10,000 or more if a biological parent contests it. The rest of this guide walks through each stage in the order you’ll encounter it.

Ending the Biological Parents’ Rights

No adoption can move forward until the biological parents’ legal rights have been ended. This is the single biggest variable in the timeline and where most kinship adoptions hit obstacles. Rights end one of two ways: the parent consents, or a court terminates them over the parent’s objection.

Voluntary Consent

A cooperating biological parent signs a formal consent document, sometimes titled a “Final and Irrevocable Consent to Adoption” or similar depending on the state. Most states require the parent to sign in front of a judge or notary, and someone must explain that the decision is permanent.

Timing matters more than people realize. Many states impose a waiting period after the child’s birth before a parent can sign. About half of all states treat consent as irrevocable the moment it is signed. In the rest, the parent has a short window, sometimes just a few days, to change their mind. Once that revocation period closes, the only way to undo the consent is to prove it was obtained through fraud or coercion. Confirm your state’s specific consent and revocation rules before anyone signs anything.

Involuntary Termination

If a biological parent refuses to consent, you have to ask the court to terminate their rights. That means filing a separate petition and presenting evidence that the parent is unfit. Grounds recognized across states include chronic abuse or neglect, abandonment, long-term drug or alcohol dependency, failure to maintain contact with the child, and long-term mental illness that prevents the parent from caring for the child.1Child Welfare Information Gateway. Grounds for Involuntary Termination of Parental Rights The judge decides based on the child’s best interest, and courts treat involuntary termination seriously because it permanently severs the parent-child relationship.

These proceedings are adversarial. The biological parent has the right to appear, hire an attorney, and contest the termination. Cases can take several months and often require testimony from social workers, therapists, or law enforcement. An attorney is practically necessary for this stage even if you plan to handle other parts of the adoption yourself.

Unmarried Biological Fathers

When the biological parents were not married, the father’s rights get handled separately. Many states maintain a putative father registry where an unmarried man can formally assert paternity. If the father registered, he is entitled to notice of the adoption and must either consent or have his rights terminated. If he never registered and a diligent search of the registry turns up nothing, some states treat that failure as an implied waiver of his right to notice and consent. Other states without a registry require a reasonable investigation to identify and locate any potential father. Failing to properly address an unmarried father’s rights is one of the fastest ways to have an adoption overturned later, so this step deserves careful attention.

The Child’s Own Consent

Most states require children above a certain age to agree to their own adoption, with many setting the threshold at 12 or 14. The child usually consents in writing and sometimes directly to the judge at the hearing. This rarely creates an obstacle in kinship adoptions where the child already lives with the relative, but it is a legal requirement you cannot skip.

Preparing the Adoption Petition

Once parental rights are resolved, the next step is assembling your petition. Having everything organized before you file avoids delays from incomplete paperwork. You will need:

  • Full legal names, dates of birth, and current addresses for yourself, the child, and both biological parents, plus the child’s place of birth.
  • A certified copy of the child’s birth certificate, available from the vital records office in the state where the child was born.
  • Signed and notarized originals of any voluntary consent forms from the biological parents.
  • A certified copy of the termination order if a court involuntarily terminated parental rights.
  • The adoption petition form itself, usually downloadable from your county court’s website or available from the court clerk.

Some courts also require a marriage certificate if you’re married, proof of income, or a sworn statement about your relationship to the child. Check with your county clerk before filing so nothing is missing.

Filing, Notice, and the Home Study

Filing the Petition

You file with the court in the county where you live. Filing fees vary widely. Some counties charge under $100, others several hundred dollars. Many courts offer fee waivers for families below certain income thresholds, so ask the clerk if cost is a concern.

Notice to Interested Parties

After filing, the court requires that every person with a legal interest in the child receive formal notice of the proceedings. That always includes the biological parents and may include legal guardians, the child’s current custodian, and in some situations grandparents. A non-consenting parent who receives notice can appear and object, which leads to a contested hearing. Defective notice can invalidate the entire adoption, so this step has to be done right.

The Home Study

A home study evaluates whether your home is a safe and suitable environment for the child. It typically involves a social worker visiting your home, interviewing household members individually and together, and running criminal background checks on all adults in the house. The written report covers your family background, financial stability, parenting experience, and the condition of your home.

This is where kinship adoption diverges most from standard adoption. Roughly a quarter of states do not require a preplacement home study for relative adoptions unless a judge specifically orders one, and an even larger number of states allow judges to waive the post-placement investigation entirely.2Child Welfare Information Gateway. Home Study Requirements for Prospective Parents in Domestic Adoption Courts are most likely to waive or simplify the home study when the child has already been living with you. If your state does require one, a private agency home study typically costs between $1,000 and $4,000.

The Final Hearing

The adoption concludes with a court hearing where the judge reviews the documents, may ask you questions about your intentions and ability to care for the child, and decides whether the adoption serves the child’s best interest. If everything is in order, the judge signs an adoption decree that legally creates the parent-child relationship and terminates any remaining rights of the biological parents. In uncontested kinship cases with clean paperwork, this hearing is often brief.

If the Child Is a Member of a Native American Tribe

If the child is a member of, or eligible for membership in, a federally recognized Native American tribe, the Indian Child Welfare Act adds specific requirements that override standard state adoption procedures. Missing them can void the adoption entirely, even years later.

Federal law establishes a placement preference order for adoption of an Indian child: first, a member of the child’s extended family; second, other members of the child’s tribe; and third, other Indian families.3Office of the Law Revision Counsel. 25 USC 1915 – Placement of Indian Children As a relative, you already satisfy the highest preference, but the court still has to follow the proper process, which includes formal notice to the tribe and mandatory waiting periods before any hearing.4Office of the Law Revision Counsel. 25 USC 1912 – Pending Court Proceedings If ICWA applies to your case, use an attorney who has handled these proceedings before.

What Kinship Adoption Costs

Total cost depends heavily on whether you hire an attorney and whether the adoption is contested. An uncontested kinship adoption where you handle the paperwork yourself might cost a few hundred dollars in court filing fees. A contested case with an involuntary termination proceeding can run $10,000 or more in attorney fees alone.

The main expenses:

  • Court filing fees, which vary by county from nothing to several hundred dollars. Many jurisdictions offer fee waivers for low-income families.
  • Home study fees between $1,000 and $4,000 if a study is required. Some states cover this cost for children adopted from foster care.
  • Attorney fees, typically billed at an hourly rate between $200 and $500 or as a flat fee. Simple, uncontested cases with flat-fee billing tend to run between $1,500 and $5,000. Contested terminations push costs much higher.

If cost is a barrier, look into legal aid organizations in your area. Many provide free or reduced-cost representation for kinship adoptions, especially when the child is being adopted out of foster care.

Financial Assistance and Tax Benefits

If the child was previously in foster care and qualifies as having “special needs” under federal guidelines, you may be eligible for ongoing monthly adoption assistance payments through the Title IV-E program. Special needs does not necessarily mean a disability. It can also mean the child is older, part of a sibling group, or has a background that makes placement difficult. The monthly amount is negotiated between you and your state’s child welfare agency and cannot exceed what the state would have paid for foster care.5Office of the Law Revision Counsel. 42 USC 673 – Adoption and Guardianship Assistance Program Many children adopted by relatives from the child welfare system qualify, and payments can continue until the child turns 18, or 21 in some states.

The federal adoption tax credit lets you recover qualified adoption expenses, including court costs, attorney fees, and home study fees. For 2025, the maximum credit is $17,280 per child, adjusted annually for inflation.6Internal Revenue Service. Adoption Credit The credit begins phasing out for families with modified adjusted gross income above $259,190 and disappears entirely above $299,190 at 2025 thresholds.

Starting in tax year 2025, up to $5,000 of the credit is refundable, meaning you can receive that amount even if you owe no federal income tax. Any nonrefundable portion beyond $5,000 can be carried forward for up to five years.7Internal Revenue Service. Notable Changes to the Adoption Credit If you need to claim the child as a dependent while the adoption is still pending and you cannot get their Social Security number, the IRS issues an Adoption Taxpayer Identification Number through Form W-7A. Apply well before your filing deadline, because missing the due date without one means losing the child tax credit for that year permanently.8Internal Revenue Service. Instructions for Form W-7A

What to Handle After the Adoption Is Final

Amended Birth Certificate

With the signed adoption decree in hand, apply for an amended birth certificate through the vital records office in the state where the child was born. The new certificate lists you as the child’s legal parent. You’ll need it for school enrollment, passport applications, and numerous other purposes. Processing times and fees vary by state.

New Social Security Number

After finalization, apply for a new Social Security number for the child. Complete Form SS-5, available at ssa.gov or a local SSA office, and bring original documents proving the child’s citizenship, age, and identity along with your adoption decree.9Social Security Administration. Learn What Documents You Will Need to Get a Social Security Card Processing typically takes about two weeks. A new number protects the child’s privacy by severing the paper trail to prior records. If you used an ATIN for tax purposes, file IRS Form 15101 to notify the IRS of the new Social Security number.10Internal Revenue Service. Instructions for Form 15101

Health Insurance

Federal law gives you a special enrollment window to add an adopted child to your employer-sponsored health plan even outside open enrollment. You have at least 30 days from the date of adoption or placement for adoption to request enrollment, and coverage must begin no later than the date of adoption itself, not the date you submitted paperwork.11eCFR. 29 CFR 2590.701-6 – Special Enrollment Periods The plan must offer the child the same benefits and premiums available to any other dependent. Don’t wait until open enrollment; missing the 30-day window could leave the child uninsured for months.

Post-Adoption Contact With Biological Relatives

In many kinship adoptions, the child will keep seeing biological parents at family gatherings and other settings. Some states let families formalize this through a post-adoption contact agreement that spells out the type and frequency of visits, calls, or other communication. Enforceability varies. Some states make these agreements binding, others make them enforceable only for certain adoption types, and some do not recognize them at all. Even where they aren’t legally enforceable, a written understanding can reduce family conflict after the adoption is complete.