Quick answer: In Montana, at what age can a child decide custody is one of the most misunderstood questions in family law. The answer is: there is no set age. Montana law does not give a child at any specific age the right to choose which parent they live with. A child’s wishes are one factor a judge considers — not the deciding factor — and no child under 18 can unilaterally decide their living arrangements. This article explains exactly how the process works, what really gives a child’s preference more weight, and what parents should — and should never — do. Because every custody case is different, schedule a free consultation with Stephanie DeBoer to discuss how these rules apply to your specific situation.
At What Age Can a Child Decide Custody in Montana?
The Myth of the Magic Age: Why “14” Is Not in Montana Law
Ask any parent going through a custody dispute in Missoula, and they’ve almost certainly heard this: “Once your kid turns 14, they get to choose.”
It is not true. There is no Montana law that gives a 14-year-old — or a child of any other age — the automatic right to decide where they live.
What the law actually says is this: a child’s wishes are one of many factors a judge weighs when deciding a parenting plan. The law is found at Montana Code Annotated § 40-4-212, the state’s best-interest-of-the-child statute. That statute lists the child’s wishes among more than a dozen factors — but it gives no instruction about a minimum age, and it gives the child’s preference no automatic priority over any other factor.
The “14 rule” appears to come from the general practice of many Montana judges giving meaningful weight to the preferences of teenagers. But that is judicial discretion — not a law. A different judge, a different child, or different circumstances could produce an entirely different result.
The only number that matters legally: 18. That is when a person becomes a legal adult in Montana (MCA § 41-1-101) and can decide for themselves where to live, with no court involved at all.
What Montana Law Actually Says About a Child’s Preference
Montana’s best-interest statute (MCA § 40-4-212) lists the factors a court must consider when creating or modifying a parenting plan. Among those factors is item (b): “the wishes of the child.”
That is the full extent of what the statute says on the topic. No age threshold. No automatic weight. Just: the child’s wishes are a factor.
The complete list of factors includes:
- The wishes of each parent
- The wishes of the child
- The child’s relationship with each parent, siblings, and other significant people
- The child’s adjustment to home, school, and community
- The mental and physical health of everyone involved
- Any history of physical abuse or threat of abuse by either parent
- Chemical dependency or substance abuse by either parent
- Continuity and stability of care
- The developmental needs of the child
- Whether either parent has failed to pay child support, they were able to pay
- Whether the child has frequent and continuing contact with both parents
- The adverse effects of repeated, frivolous parenting plan changes on the child
The child’s wish is item (b) on a list of twelve or more factors. Every factor matters. None automatically outweighs the others. The judge looks at the full picture.
This is why the answer to “can my 13-year-old just pick which parent to live with?” is always: it depends on your specific case. The judge has wide discretion, and the outcome turns on facts — not just your child’s age.
How a Judge Actually Hears What a Child Wants
Children do not testify in open court in Montana custody cases. The courtroom is an intimidating place for adults — for children, it can be genuinely frightening. Montana law provides two main ways for a judge to learn a child’s preferences without putting the child through that experience.
Option 1: The Chambers Interview (MCA § 40-4-214)
A judge can interview a child privately in the judge’s chambers — their office, away from the courtroom and away from both parents. Under MCA § 40-4-214:
- The judge may conduct this interview — it is not required
- Attorneys for both parents may be present
- A court reporter makes a record of the interview
- That record becomes part of the official case file
The judge asks the child about their living preferences and their relationship with each parent. The conversation is kept as low-pressure as possible. The child speaks directly with the judge, not in front of both parents.
Whether a judge chooses to hold this interview depends on the case. For a young child, a judge may decide it is unnecessary or would be more harmful than helpful. For a teenager with strong views, a chambers interview can be an important part of the process.
Option 2: Guardian Ad Litem or Parenting Evaluator
A judge does not have to interview a child personally to consider their wishes. The court can also appoint:
- A guardian ad litem (MCA § 40-4-205) — typically an attorney who represents the child’s interests independently of both parents. The guardian interviews the child, investigates the family situation, and gives the court a recommendation.
- A parenting evaluator — a mental health professional who conducts a more in-depth assessment of both parents and the child, then writes a report with recommendations for the court.
Both of these approaches allow the child to share their views in a lower-stakes setting with a professional trained to talk with children. The written report then goes to the judge.
Real Montana Cases: What Actually Happened
Montana courts have published decisions that give a clearer picture of how judges handle child preferences in practice.
When the Court Did NOT Follow the Child’s Wishes
In one Montana case, a judge declined to consider the preferences of children aged 5 and 8. The judge determined that neither child was old enough to form an independent, reasoned preference about where they should live. The judge did not even conduct a chambers interview, concluding it would not be meaningful or productive given the children’s ages. The parenting plan was determined entirely by other best-interest factors.
When the Court DID Follow the Child’s Wishes
In another Montana case, two girls aged 11 and 13 were found by the court to be “of sufficient age to formulate intelligent and reasoned opinions.” The court gave their preferences serious weight — and granted their request to live with their father, changing the primary residential arrangement. The children’s preferences, clearly expressed and independently held, were a deciding factor in the outcome.
What these two cases show is that age alone is not the standard. The 5- and 8-year-olds were too young. The 11- and 13-year-olds were considered capable of reasoned judgment. The difference was maturity, clarity of expression, and the independence of their views — not a magic number.
The Real Factors That Give a Child’s Preference More Weight
If you want to understand whether your child’s stated preference will carry weight in a Missoula District Court, the question is not “how old are they?” It is:
1. Can the child give a real reason?
“I want to live with Dad because he lets me stay up later” carries very little weight. “I want to live with Dad because Mom and her boyfriend fight a lot, and it scares me” carries much more. A preference backed by specific, observable reasons is treated as more credible.
2. Does the preference appear independent?
Judges are experienced at recognizing when a child’s stated preference reflects what a parent has told them to say. A child who uses adult legal language, who gives practiced-sounding answers, or who can’t explain their own stated preference in their own words raises red flags immediately. An independent preference — one that the child can explain in their own words, from their own experience — is taken more seriously.
3. How mature is this child specifically?
Two 12-year-olds can differ greatly in emotional and intellectual maturity. Judges look at the individual child in front of them, not a category. A judge may give substantial weight to an unusually mature 11-year-old’s preference while giving little weight to an immature 15-year-old’s.
4. Is the preference consistent?
A child who expresses the same clear preference to both parents, to the guardian ad litem, and to the judge in chambers is more credible than a child who says different things to different people. Consistency signals genuine feeling rather than coaching.
5. Does following the preference serve the child’s actual best interests?
Even a mature, independent, clearly-reasoned preference can be overridden if following it would not actually serve the child’s well-being. A teenager who wants to live full-time with the more permissive parent to avoid rules is expressing a genuine wish — but a judge might decide that structure, school stability, and relationships with siblings outweigh that preference.
Can a Child Refuse to Follow the Parenting Plan?
This question comes up constantly, especially with teenagers. The answer is clear under Montana law: no.
Under Montana law (MCA § 41-1-101), anyone under 18 is a minor. A minor does not have the legal authority to override a court order. When a judge signs a parenting plan, both parents are legally required to follow it. The plan is not optional — for parents or children.
If a child refuses to go to the other parent’s home, the parent responsible for that parenting-time exchange must still comply with the order. That parent must make a genuine effort to get the child to the exchange. Failing to do so can put the parent at risk of contempt of court.
Violating a court-ordered parenting plan is punishable by contempt of court and may be a criminal offense under MCA § 45-5-631, with penalties including a fine of up to $500 or imprisonment in the county jail.
If your teenager is refusing to follow the parenting plan — whether because they want to change their living arrangements or because of a safety concern — the right step is to return to court, not simply let the plan slide. A family law attorney can help you pursue a modification through the proper legal process.
What Parents Should Never Do
The most damaging thing a parent can do in a custody case is put the child in the middle. This comes in many forms:
Do not coach your child on what to say.
Montana judges hear custody cases every week. They are very good at recognizing coached answers. A child who uses phrases that sound rehearsed, who can’t give their own explanation in their own words, or who parrots adult legal concepts is a signal to an experienced judge that something is wrong. Coaching can destroy your credibility with the court — and harm your child.
Do not ask your child to keep secrets from the other parent.
Telling a child not to tell the other parent something you’ve said or done is a form of involving the child in adult conflict. Courts view this as harmful to children and take it seriously.
Do not put your child in the position of reporting on the other parent.
Asking a child to tell you what goes on at the other parent’s house, what the other parent says, or who the other parent spends time with places an adult burden on a child. It also creates a dynamic that courts recognize as harmful — and that works against the parent doing it.
Do not tell your child they get to choose.
Even if your child is 16 and has strong views, telling them “you get to decide” sets an expectation the law does not support. If the court does not follow your child’s preference, that child is left feeling betrayed by a system they were told would follow their wishes. That is an unfair position to put any child in.
The parents who do best in Montana custody cases are the ones who demonstrate to the court that they put their child’s well-being above their own desire to “win.” That is the standard a Missoula judge is applying every time they read a parenting plan.
What to Do If Your Child Wants to Change the Parenting Plan
If your child has expressed a genuine, strong preference to change where they primarily live, that preference can be a meaningful part of a modification case — but it cannot be the only part.
To modify an existing parenting plan in Montana, a parent must generally show:
- There has been a significant change in circumstances since the plan was ordered, and
- The change is necessary to serve the best interests of the child (MCA § 40-4-219)
A child’s growing preference to live with the other parent — especially if the child is older and the preference is mature and independent — can be a relevant change of circumstance. But it needs to be presented to the court properly, through the legal process, not by simply allowing the child to stop following the current plan.
If you believe a modification is appropriate and your child’s preferences are part of that, talk to a family law attorney before doing anything. Acting unilaterally — by letting your child skip parenting time with the other parent — can result in you being held in contempt of court, which will make your modification case much harder.
How Stephanie DeBoer Can Help
Stephanie DeBoer has practiced family law in the Missoula area for over 15 years and graduated with honors from the University of Montana’s Alexander Blewett III School of Law in 2010. She handles child custody and parenting plan cases throughout Western Montana and has extensive experience with the Missoula County District Court.
Questions about how a child’s preference fits into your specific case — whether you’re creating an initial parenting plan or seeking a modification — depend entirely on the facts of your situation: your child’s age, maturity, what they are expressing, and how that fits alongside the other best-interest factors. This is not a question you should try to answer from an article alone.
Stephanie’s first consultation is always free. You will leave with a clear, honest understanding of where your child’s preference stands in the law — and what your realistic options are.
Frequently Asked Questions
At what age can a child decide custody in Montana?
No set age exists in Montana law. A child’s wishes are one factor a judge considers under MCA § 40-4-212, weighed against all other best-interest factors. No child under 18 can unilaterally choose which parent they live with. The weight the court gives to a child’s preference depends on the child’s maturity, the independence of their views, and the specific facts of the case, not a specific birthday.
Is it true that a 14-year-old gets to choose in Montana?
No. This is a very common misconception. Montana law does not give 14-year-olds — or children of any other specific age — automatic authority to decide custody. The number 14 stems from the general practice of some judges giving greater weight to teenagers’ preferences, but no statute establishes 14 as a threshold. A judge may give significant weight to a mature 12-year-old’s preference and minimal weight to an immature 16-year-old’s. Every case is different.
How does the judge hear what my child wants without putting them in the courtroom?
Under MCA § 40-4-214, a judge can interview the child privately in chambers — in the judge’s office, away from the courtroom. Attorneys may attend, and a court reporter makes a record. The judge can also appoint a guardian ad litem (an attorney for the child) or a parenting evaluator to gather the child’s views and report back to the court.
Can my teenager refuse to go to the other parent’s house?
No. Under Montana law, anyone under 18 is a minor and cannot override a court-ordered parenting plan. Both parents must follow the plan. If a child refuses, the parent responsible for that parenting exchange must still make a genuine effort to comply. Failing to comply can result in contempt of court under MCA § 45-5-631. If the parenting plan needs to change, the right step is to file a formal modification through the court — not to simply let the plan slide.
Will coaching my child to say they prefer me help my case?
No — and it can seriously backfire. Experienced Montana judges quickly recognize coached answers. A child who uses rehearsed language, can’t explain their preference in their own words, or gives inconsistent answers to different people is a warning sign to the court. Coaching typically hurts the coaching parent’s credibility and may lead the judge to give the child’s stated preference less weight, not more.
My child wants to change which parent they live with. What can I do?
A child’s growing and genuine preference — especially in an older, more mature child — can be a relevant factor in a parenting plan modification. To pursue a modification in Montana, you generally need to show a significant change in circumstances since the original plan was ordered (MCA § 40-4-219). A family law attorney can help you evaluate whether your situation meets that standard and how to present your child’s preference to the court effectively. Do not simply allow the current plan to be ignored — that can result in contempt of court and make your modification case harder to pursue.
This article is for general information only. It is not legal advice and does not create an attorney-client relationship. Every situation is different. Contact a licensed Montana family law attorney for advice specific to your circumstances. S. DeBoer Attorney at Law — 619 SW Higgins Ave Suite K, Missoula, MT 59803 — (406) 728-0905.