How Old Do You Have to Be to Adopt in Tennessee?

You must be at least 18 to adopt a child in Tennessee under state law, which is the short answer to how old you have to be to adopt in Tennessee. That floor comes from Tennessee Code 36-1-115(a) and applies to private, agency, and relative adoptions.¹ If you want to adopt through the state’s foster care system, the Department of Children’s Services sets a higher threshold: you must be at least 21.² There is no upper age limit in Tennessee statute.

Minimum Age Under Tennessee Law

Tennessee Code 36-1-115(a) allows any person over 18 to petition a chancery or circuit court to adopt.¹ That single threshold covers the full range of adoption types the state recognizes: adoptions arranged through a private agency, independent adoptions, adoptions by a stepparent, and adoptions by relatives such as grandparents, aunts, uncles, siblings, and first cousins.

If you are married, your spouse must join the petition unless they are legally incompetent, and both of you need to meet the age requirement. When the spouse joining the petition is already the child’s biological or legal parent, they sign as a co-petitioner and no separate surrender of parental rights is needed from them.¹ Single adults can adopt on their own.

The Foster Care Exception: 21 and Older

Adopting through the Department of Children’s Services runs on a separate track with its own baseline. DCS requires prospective adoptive parents to be at least 21, a Tennessee resident, and financially and emotionally able to meet their family’s needs. You can be married, single, or divorced, and you can rent or own your home.²

In practice, about 80 percent of children adopted from Tennessee’s foster care system are adopted by the families already caring for them as foster parents.² DCS does not actively recruit adopt-only homes. Most people who adopt through DCS enter the system as foster parents first, then adopt a child in their care who becomes legally free for adoption. Foster parents who have cared for a child for 12 or more consecutive months have a statutory preference to adopt that child.¹

Is There a Maximum Age To Adopt?

No. Tennessee statute does not set an upper age limit for adoptive parents. An applicant in their sixties or seventies is not disqualified by age alone.

What courts do consider is whether a particular adoption serves the child’s best interests, and an older applicant’s health and capacity to provide stable, long-term care can factor into that analysis. Tennessee Code 36-1-113(i) directs judges to weigh the child’s need for stability and continuity of placement, how a change in caregivers would affect the child emotionally and medically, and whether the child has formed a healthy attachment to the prospective adoptive family, among other factors.³ Age shows up only indirectly, through those practical questions.

Age Gap Between Parent and Child

Tennessee does not require a specific age gap between an adoptive parent and the child being adopted. Some states impose a minimum difference, often around 10 years, but Tennessee’s statute contains no such rule. The 18-year minimum age for the petitioner is the only numerical age requirement in the law.

Other Eligibility Rules That Matter More Than Age

Most adults who meet the age requirement will clear it easily. The eligibility rules that actually determine whether a Tennessee adoption moves forward tend to involve residency, custody, your home, and your record.

Residency

You must live in Tennessee and maintain your regular home here when you file the petition. Nonresidents can file only in limited circumstances, such as when a Tennessee court already granted them custody of the child. Active-duty military members get an exception if Tennessee was their home for at least six consecutive months before entering service, or if Tennessee is their state of legal residence as identified to the military.¹

Custody

You must have physical custody of the child, or show the court you have a legal right to receive custody, at the time you file the petition.¹

Home Study

Before you file an adoption petition in Tennessee, you generally need a home study completed through a licensed child-placing agency or a licensed clinical social worker. If you qualify as indigent under federal poverty guidelines, you can request the study through DCS instead.⁴ The court can waive the home study when the child is being adopted by a relative.

The study evaluates the suitability of your home and your readiness as an adoptive parent through interviews, a review of your household, and an assessment of your ability to meet a child’s needs. A full home study must have been completed or updated within one year of the court’s order of reference, and a preliminary study must be no more than 30 days old when the petition is filed.⁴ Private home study costs typically run from about $900 to $4,900 depending on the agency and the scope of the evaluation.

Criminal Background Checks

Every prospective adoptive parent in Tennessee goes through screening under Tennessee Code 71-3-507. That includes a fingerprint-based criminal and juvenile records check through the Tennessee Bureau of Investigation, a review of the Department of Health’s vulnerable persons registry, a check against the state sex offender registry, a review of child abuse and neglect records held by both DCS and the Department of Human Services, and equivalent reviews in any state where you have lived during the past five years.⁵

Some findings are automatic disqualifiers. You cannot be approved as an adoptive parent if your records show a conviction, guilty plea, or no-contest plea for child abuse or neglect, a crime of violence against any person, or any offense the department determines poses a threat to children’s safety. Appearing on the vulnerable persons registry, the sex offender registry, or in abuse and neglect records as an indicated perpetrator also bars approval.⁵ The Tennessee statute does not include a specific five-year lookback window for violent crimes, and the disqualifiers apply regardless of when the offense occurred.

Marital Status

Single adults can adopt. If you are married, your spouse joins the petition with you unless they are legally incompetent.¹

The age question itself is the easy part. If you are 18 and pursuing a private or relative adoption, or 21 and pursuing a foster care adoption, you clear the threshold. From there, the home study, the background check, and the court’s best-interests analysis do most of the work.

1
Justia. Tennessee Code 36-1-115 – Persons Eligible to File Adoption Petition
2
Tennessee Department of Children’s Services. How to Adopt
3
Child Welfare Information Gateway. Determining the Best Interests of the Child – Tennessee
4
FindLaw. Tennessee Code Title 36 Domestic Relations 36-1-116
5
Child Welfare Information Gateway. Background Checks for Prospective Foster, Adoptive, and Kinship Caregivers – Tennessee