To adopt your niece, you’ll need her legal parents to consent (or have a court terminate their rights), pass a home study, file an adoption petition in family or probate court, and receive a final decree from a judge. The framework is the same one that governs any adoption, but courts favor keeping children with relatives, and many states waive or streamline requirements for kinship placements. Start to finish usually runs three to twelve months.
Whether You Qualify
Every state sets baseline eligibility rules, and being a relative already puts you ahead on the question of whether you have a meaningful bond with the child.
Most states require adoptive parents to be at least 18, though some set the floor at 21 or 25. A minimum age gap between you and your niece may also apply, so a court can see a parent-child dynamic rather than a sibling-like one. Check your state’s adoption statute for the exact number.
You’ll also need to show established residency in the state where you file. Requirements range from a few months to a year. A lease, utility bills, or similar documentation is what courts want to see.
Getting Consent From Her Parents
Consent is where kinship adoptions most often stall. Both of your niece’s legal parents must voluntarily relinquish their rights or have those rights terminated by a court before the adoption can be finalized.
When Parents Agree
Parents who agree sign a formal consent or relinquishment. Most states impose a waiting period after birth before that consent becomes valid, and many allow a revocation window that can run from hours to months. Until that window closes, the adoption cannot be finalized. Once it closes, the parent generally cannot undo the decision.
When a Parent Refuses or Cannot Be Found
If a parent won’t consent, you’ll need to pursue involuntary termination of parental rights. That’s a separate court proceeding, and it can add months. Courts recognize grounds including:
- Abandonment, meaning no contact with or support for the child over a prolonged period.
- Severe abuse or neglect, with documented harm or failure to provide basic care.
- Chronic substance abuse or mental illness that makes safe parenting impossible over the long term.
- Failure to correct the conditions that led to the child’s removal after being given services and time to do so.
Courts will only terminate parental rights when the parent has failed to correct those conditions and cannot provide a safe home, even after reasonable efforts to help the family.1Child Welfare Information Gateway. Grounds for Involuntary Termination of Parental Rights If a parent simply cannot be located, most states require a diligent search followed by notice through publication in a local newspaper before the case can move forward without that parent.
Putative Fathers
If your niece’s biological father isn’t on her birth certificate and wasn’t married to her mother, he may still be entitled to notice. About half of U.S. states maintain putative father registries where unmarried men can record potential paternity. Before finalization, the registry is searched. A registered man must receive notice and can appear in court. If no one is registered, the adoption can typically proceed without notice to an unknown father, and in many states failure to register is treated as implied consent or abandonment.
Your Niece’s Own Consent
Most states require children above a certain age to consent to their own adoption, commonly somewhere between 10 and 14. A judge can sometimes waive this when a waiver serves the child’s best interests, but in practice courts want to hear from older children.
The Home Study
Every state requires a home study, and kinship placements are no exception. A licensed social worker or agency representative conducts it. Expect interviews with you and other household members about your parenting experience, motivation, and relationship with your niece; a home visit checking for safety and adequate space; a review of pay stubs, tax returns, and bank statements to confirm you can support another family member; references from people outside the family; and criminal history and child abuse registry checks for every adult in the household. The social worker writes it all up in a report with a recommendation for the court.2AdoptUSKids. Home Study
Kinship Waivers
Because you’re a relative, the study can be less intensive than what a stranger-adoption family faces. Several states grant waivers for non-safety-related licensing requirements in kinship placements, such as training hours, vehicle ownership, proximity to certain facilities, and sleeping arrangement standards. Safety checks always still apply. Ask the social worker or your attorney which kinship-specific waivers your state allows, because they aren’t automatic.
Criminal History That Can Disqualify You
Federal law requires criminal background checks for any prospective foster or adoptive parent when federal adoption assistance is involved. Certain felony convictions are permanent disqualifiers: child abuse or neglect, crimes against children (including child pornography), sexual assault, and violent crimes like rape or homicide. A felony conviction for physical assault, battery, or a drug offense within the past five years also blocks approval.3Office of the Law Revision Counsel. 42 USC 671 – State Plan for Foster Care and Adoption Assistance Even in private kinship adoptions that don’t involve federal funds, most states apply similar rules through their own statutes. If you have any criminal history, raise it with your attorney at the very beginning.
When Your Niece Lives in Another State
If your niece lives in a different state, the Interstate Compact on the Placement of Children applies. The ICPC is a binding agreement among all 50 states, the District of Columbia, and the U.S. Virgin Islands that governs moving a child across state lines for adoption. Both the sending state and the receiving state must approve the placement before she can physically move to your home.
The caseworker or attorney in the sending state assembles a packet and submits it to that state’s central ICPC office, which transmits it to the receiving state’s ICPC office, which then routes it to a local agency for a home study. Only after both states sign off can your niece move. Moving her early can get her sent back and can jeopardize the entire adoption. Plan on weeks or months of added time.
If Your Niece Is a Native American Child
If your niece is a member of or eligible for membership in a federally recognized tribe, the Indian Child Welfare Act applies regardless of where she lives. The tribe must be notified of the adoption by registered mail with return receipt requested, and it has the right to intervene. Federal law sets a placement preference order for Indian children: first the child’s extended family, then other members of the child’s tribe, then other Indian families.4Office of the Law Revision Counsel. 25 USC 1915 – Placement of Indian Children As an aunt or uncle, you fall within that first preference, which works in your favor. The tribe can set its own preference order by resolution, and courts must also consider the prevailing social and cultural standards of the Indian community. Failure to comply with ICWA can invalidate an adoption, so treat these requirements as non-optional.
Filing the Petition and Going to Court
Once consent is in hand or termination is underway, you file an adoption petition in the family or probate court for the county where you or your niece lives. The petition identifies you, your niece, and the biological parents, and it comes with the consent forms, her birth certificate, proof of your identity and residency, financial information, and a criminal background check. An incomplete filing can push the whole case back by weeks, so having an experienced family law attorney prepare the papers is worth the cost.
After the paperwork is accepted, the court holds a hearing. You and your attorney attend, and in many courts your niece attends too, especially if she’s old enough to speak to her own wishes. The judge reviews the home study, consents, and background checks, and asks about your relationship with your niece, your plans for her care and education, and how you’ll keep her connected to her biological family. The central question is whether the adoption is in her best interests.
Some states impose a supervisory or waiting period between the hearing and finalization, during which a social worker may visit to see how the placement is going. That period generally runs three to nine months after placement.5AdoptUSKids. Finalizing an Adoption
When the judge is satisfied, the court issues a final decree of adoption. That decree permanently makes you your niece’s legal parent, with full authority over medical, educational, and religious decisions, and gives your niece inheritance rights and every other legal benefit of being your child. The state seals her original birth certificate and issues a new one listing you as the parent, usually within four to twelve weeks of receiving the court’s paperwork.
What It Costs
Kinship adoption is typically much less expensive than agency or international adoption, but it isn’t free. Common expenses include:
- Court filing fees, ranging from under $100 to several hundred dollars depending on the jurisdiction.
- Home study fees, usually $1,000 to $3,000.
- Attorney fees, which can be a few thousand dollars for a straightforward case where both parents consent, and significantly more if termination of parental rights is contested.
- Background check fees, generally modest but state-specific.
- Any pre-adoption counseling or parenting classes the court requires.
The Federal Adoption Tax Credit
The federal adoption tax credit offsets qualified adoption expenses including court costs, attorney fees, travel, and home study fees. For 2025, the maximum credit is $17,280 per eligible child, and the amount is adjusted for inflation each year.6Internal Revenue Service. Adoption Credit The credit phases out at higher incomes; for 2025 the phase-out starts at a modified adjusted gross income of $259,190 and is fully gone above $299,190.7Internal Revenue Service. Instructions for Form 8839 Claim it on IRS Form 8839 with the return for the year the adoption becomes final. Unused credit can generally be carried forward.
Adoption Assistance for Children With Special Needs
If your niece was in foster care or has been determined to have special needs, she may qualify for Title IV-E adoption assistance, which provides monthly subsidy payments and Medicaid. To qualify, the state must have determined that she cannot or should not be returned to the birth parents, that a specific factor (such as age, medical condition, or membership in a sibling group) makes placement difficult, and that reasonable efforts to place her without a subsidy have not succeeded.8Child Welfare Policy Manual. Title IV-E Adoption Assistance Program – Eligibility Your state’s Department of Social Services or child welfare agency can tell you whether she qualifies.
After the Decree Is Signed
The decree is the legal finish line, but a few practical tasks still have deadlines.
You can apply for a new Social Security number for your niece with Form SS-5, submitting the adoption decree and other identity documents. Processing usually takes about two weeks once the SSA has everything.9Internal Revenue Service. Provide a Social Security Number for Adoptive Child A new SSN is optional, but many adoptive families request one.
Federal law gives you a special enrollment period to add her to your employer-sponsored health plan outside of open enrollment. You have at least 30 days from the date of adoption or placement for adoption to enroll her, and the plan must make coverage effective no later than the adoption date itself.10eCFR. 29 CFR 2590.701-6 – Special Enrollment Periods Miss that window and you’ll wait until the next open enrollment.
Once the adoption is final, your niece is your child for Social Security purposes. If you become disabled, retire, or die, she’s eligible for dependent or survivor benefits on your work record just as a biological child would be, as long as she’s unmarried and either under 18, a full-time student under 19, or disabled with a condition that began before age 22.11Social Security Administration. 20 CFR 404.362 – When Is a Legally Adopted Child Dependent