How Tennessee Courts Decide Child Custody: What the Best Interest Standard Really Means

Disclaimer: This post is for general informational purposes only and does not constitute legal advice. If you or someone you know is facing a family law matter, consult a licensed Tennessee attorney immediately.

When parents separate, the question that keeps most of them awake at night is some version of the same one: what happens to my time with my kids? A lot of people walk into that question assuming custody is a contest, where the parent who hires the most aggressive lawyer or builds the longest list of complaints about the other parent comes out ahead. Tennessee law works differently, and understanding how it actually works changes how a parent should prepare from the very first conversation with an attorney.

Tennessee judges decide custody under a single governing standard, the best interest of the child, set out in T.C.A. § 36-6-106. The statute does not ask which parent is more sympathetic or which one is angrier about the breakup. It directs the court to weigh a specific list of factors about the child’s life and each parent’s role in it, and then to build a custody arrangement that lets both parents participate in the child’s life as much as the circumstances reasonably allow.

The Tennessee legislature also revised that list of factors effective July 1, 2025, which means some of what parents may have heard from friends who went through custody cases a few years ago is now out of date.

Here is what the law actually says, and what it means for a parent heading into a custody dispute in Middle Tennessee.

What “Best Interest of the Child” Means in Tennessee

Under T.C.A. § 36-6-106(a), any time a court has to make a custody decision about a minor child, whether in a divorce, a paternity case, or another proceeding, it has to make that decision based on the best interest of the child.

The statute goes a step further and tells judges to order an arrangement that “permits both parents to enjoy the maximum participation possible in the life of the child,” measured against the listed factors, the location of each parent’s home, and the child’s need for stability.

That framing matters because it sets the default expectation. Tennessee starts from the premise that a child generally benefits from a meaningful relationship with both parents, and the court’s job is to shape that relationship around the realities of the family rather than to award one parent a prize.

The factors are how a judge gets from that general premise to a specific plan for a specific child.

What Changed on July 1, 2025

The 2025 amendment to the statute re-outlines what the court examines and in what order. The court now first looks at the factors listed in T.C.A. § 36-6-406 and decides whether there has been any willful abandonment, refusal to perform parenting responsibilities, or physical, sexual, or emotional abuse of the child, parent, or of another person living with the child.

Additionally, the courts examine whether either parent resides with an individual who has engaged in physical, sexual, or a pattern of emotional abuse, whether either parent is a sexual offender, whether either parent has failed to pay court ordered child support, drug or alcohol impairments, etc.

Only if these factors are not dispositive does a judge go on to weigh the other best interest factors.

The Factors a Judge Weighs

The statute lists the factors a court considers, and while a judge does not give every factor equal weight in every case, the list is a fair map of what evidence matters.

The best interest factors include the strength and stability of the child’s relationship with each parent, including which parent has handled the majority of day-to-day parenting responsibilities, and each parent’s willingness to support and encourage the child’s relationship with the other parent. A parent who has quietly done the homework help, the doctor visits, and the bedtime routines for years is bringing something the statute specifically asks the court to look at.

Beyond the caregiving history, the court looks at each parent’s ability to provide food, clothing, medical care, and education; the love and emotional ties between the child and each parent; the child’s emotional needs and developmental stage; and the moral, physical, mental, and emotional fitness of each parent as it bears on parenting. The statute also directs the court to consider the child’s relationships with siblings and others, the importance of continuity and how long the child has lived in a stable environment, any evidence of physical or emotional abuse to the child or to another person in the home, and the character of other people who live in or frequent each parent’s home.

Two factors tend to come up in almost every consultation. The first is the child’s own preference, which a court may consider once the child is twelve or older, with the preferences of older children normally given more weight than those of younger ones. A child’s wishes are part of the picture, not the deciding vote, and a judge is not required to follow them. The second is each parent’s work schedule, which the court can take into account and even build accommodations around, because a parenting plan has to function in the real world of shift work, travel, and school calendars.

What this means if you are facing a custody dispute

The practical lesson in the factor list is that custody cases are won on specifics rather than on volume. A judge is far more persuaded by a clear, documented account of who has been doing the parenting, how the child is doing in school and at home, and what each parent’s week actually looks like than by a general narrative about the other parent being difficult. A parent who can speak concretely to the factors the statute names walks into court in a much stronger position than one who has spent the run-up to the hearing collecting grievances.

How Custody and the Parenting Plan Fit Together

Tennessee does not hand one parent “custody” in the all-or-nothing sense people often imagine. Instead, the court enters a permanent parenting plan that names a primary residential parent, sets out a residential schedule for how the child’s time is divided, and allocates decision-making authority over things like education, health care, and religious upbringing. The best interest factors drive every piece of that plan.

A parent can be the primary residential parent on paper while the other parent still has substantial parenting time and a real voice in major decisions, depending on what the factors support.

Because the plan is a court order rather than a private understanding, changing it later requires going back to court and meeting a separate legal standard. Parents who expect their circumstances to shift, because of a move, a new job, or a child’s changing needs, should understand the modification process before they sign, and that is its own topic worth reading about in full.

Frequently Asked Questions About Child Custody in Tennessee

Does Tennessee favor mothers over fathers in custody cases?

No. Tennessee’s custody statute is written in gender-neutral terms, and T.C.A. § 36-6-106 directs courts to decide custody based on the best interest factors rather than on the sex of either parent. The parent who has handled more of the day-to-day caregiving may have an advantage on certain factors, but that advantage comes from the caregiving history the statute asks about, not from being the mother or the father.

At what age can my child decide which parent to live with in Tennessee?

A child does not get to decide on their own at any age. Under T.C.A. § 36-6-106(a), a court may consider the reasonable preference of a child who is twelve or older, and the preferences of older children are normally given greater weight. The judge weighs that preference alongside every other factor and is never bound to follow it.

What is the difference between the primary residential parent and joint custody?

Tennessee uses the term primary residential parent to describe the parent with whom the child lives the majority of the time under the parenting plan, but that designation does not strip the other parent of involvement. The plan separately sets the residential schedule and divides decision-making authority, so a parenting plan can give both parents significant time and shared authority over major decisions even though one parent carries the primary residential parent label. So, although one parent is named as the primary residential parent, both parents can be granted joint custody of the child.

Can both parents get equal parenting time in Tennessee?

Yes, an equal or near-equal schedule is possible when the best interest factors support it and the arrangement is workable given where the parents live and their schedules. The statute’s instruction that both parents enjoy the maximum participation possible leaves room for equal time, but the court will still measure any proposed schedule against the child’s need for stability and the practical realities of the family.

Will a judge consider whether a parent fell behind on child support?

Yes. As of the July 1, 2025 update to T.C.A. § 36-6-106(a), a court may consider whether a parent has failed to pay court-ordered child support, and the change removed the prior requirement that the nonpayment span three years or more before it became relevant. Falling behind is now a factor a court can weigh even over a shorter period.

Does it matter which parent files for custody first?

Filing first does not give a parent a legal advantage on the merits, because the court decides custody on the best interest factors regardless of who initiated the case. Filing can affect the timing and logistics of temporary arrangements while the case is pending, which is one of several reasons to talk with an attorney early rather than waiting.

The Stakes Are Higher Than Most People Realize

A custody decision shapes years of a parent’s life and a child’s, and the parenting plan a court enters is difficult to change once it is in place. Parents who treat the case as a fight to be won often spend their energy on the wrong things, while parents who understand the best interest factors can put together evidence that actually moves a judge.

The recent changes to the statute only sharpen that point, because there are now more ways for past conduct to affect the outcome. Getting clear early on how Tennessee courts decide these cases is the difference between reacting to the process and shaping it.

Carolanne King (Partner) and Marissa Knight (Associate) are both attorneys at Freeman & Fuson in Nashville, Tennessee, handling divorce, custody, and parenting plan matters across Middle Tennessee. If you have questions about a custody dispute or are facing a divorce involving children, call our office at (615) 298-7272.

This article is intended for general informational purposes and is not legal advice. Every situation is different. Please consult an attorney regarding your specific circumstances.