If you move out of Montana while your divorce is pending, the Montana case continues. The statute measures the domicile requirement at the time the action was commenced, so one spouse leaving afterward does not undo it. What changes is the practical side: you still have to meet deadlines, follow the court's orders, and appear when required. If children are involved, a move raises separate questions about notice, the parenting plan, and which state's court decides. This page is part of our Montana Divorce Guide.
Does the Montana Court Keep the Case?
The court shall enter a decree of dissolution if it finds that one of the parties, at the time the action was commenced, was domiciled in Montana or stationed here in the armed services, and that the domicile or military presence had been maintained for 90 days preceding the filing (MCA § 40-4-104(1)(a)). The test looks back from the filing date. Nothing in that section requires either spouse to stay in Montana until the decree. Reading the statute that way is our interpretation of its wording, and you should confirm how it applies to your facts.
The court's power over the marriage is one thing. Its power to order a spouse to pay money or divide property located elsewhere can depend on personal jurisdiction over that spouse and on where the property is. Those issues are covered in divorce when your spouse lives in another state and divorce when you own property in another state.
What Still Binds You After You Move
- The automatic economic restraining order. It binds the petitioner on filing and the respondent on service, and stays in place until the decree or dismissal unless the court changes it (MCA § 40-4-126).
- Financial disclosure. Declarations of disclosure are still due on the statutory schedule (MCA §§ 40-4-252, 40-4-253).
- Temporary orders. Orders for temporary support, an injunction, or an interim parenting plan remain in force wherever you live.
- Keeping the court informed. Make sure the court and the other side have a current address for service, unless a safety order protects it.
Children and the Home State Rule
For children, Montana follows the Uniform Child Custody Jurisdiction and Enforcement Act, at Title 40, chapter 7. A Montana court has jurisdiction to make an initial child custody determination if Montana is the child's home state on the date the proceeding is commenced, or was the home state within 6 months before then and the child is absent but a parent continues to live in Montana (MCA § 40-7-201(1)(a)). "Home state" means the state where the child lived with a parent for at least 6 consecutive months immediately before the proceeding began. A period of temporary absence counts as part of that time (MCA § 40-7-103(7)).
Two consequences follow. First, taking a child to another state after a Montana case is filed does not move the case. Physical presence of a party or a child is neither necessary nor sufficient to make a child custody determination (MCA § 40-7-201(3)). Second, once a Montana court has made a custody determination, it keeps exclusive, continuing jurisdiction until a court decides that the child and parents no longer have a significant connection with Montana, or that neither the child nor any parent presently resides here (MCA § 40-7-202(1)).
A Montana court can decline to use its jurisdiction if it finds that it is an inconvenient forum and another state's court is more appropriate. The factors include whether domestic violence has occurred and which state could best protect the parties and the child, how long the child has lived outside Montana, and where the evidence is (MCA § 40-7-108). More in which state decides custody.
Relocation Notice When You Have Children
Montana's notice statute applies to a parent who intends to change residence. That parent shall provide written notice to the other parent, unless the parenting plan statute precludes it (MCA § 40-4-217(1)).
If the change in residence will significantly affect the child's contact with the other parent, more is required. The moving parent must file a motion to amend the residential schedule, with a proposed revised schedule, in the court that adopted the schedule. The motion must be served personally or by certified mail on the other parent not less than 30 days before the proposed move, and it must contain the warning language set out in the statute (MCA § 40-4-217(2)). The other parent has 21 days after service to respond, and failing to respond within that time constitutes acceptance of the proposed schedule (MCA § 40-4-217(3), (4)).
That procedure refers to a residential schedule a court has already adopted. Early in a divorce there may be no schedule yet. In that situation the safer course is the same: give written notice, and get either the other parent's written agreement or an interim parenting plan before a child's residence changes. The court can enjoin removal of a child from its jurisdiction (MCA § 40-4-121(2)(d)), and when a move is part of the parenting dispute the court looks at the reasons for it and whether the moving parent has shown a willingness to promote the child's relationship with the other parent (MCA § 40-4-219(1)(b)). See relocating with a child and our relocation page.
Appearing From Another State
| Event | What the rule says | Source |
|---|---|---|
| Testimony at trial | Taken in open court. For good cause in compelling circumstances and with appropriate safeguards, the court may permit testimony by live transmission from another location. | M. R. Civ. P. 43(a) |
| Testimony in a child custody proceeding | A Montana court may permit a person residing in another state to be deposed or to testify by telephone, audiovisual means, or other electronic means. | MCA § 40-7-119(2) |
| Depositions | The parties may agree, or the court may order, that a deposition be taken by telephone or other remote means. | M. R. Civ. P. 30(b)(4) |
| Agreed final decree | The court may enter a decree without a hearing on affidavits when the statutory conditions are met, but may require a hearing for any reason. | MCA § 40-4-108(4) |
| Summary dissolution | The statute calls for a hearing at which both parties must be present. | MCA § 40-4-133 |
None of these gives a party a right to appear remotely. Each leaves the decision to the court. In a child custody proceeding the court may also direct a party who is outside Montana to appear personally, with or without the child, and may require another party to pay reasonable and necessary travel expenses (MCA § 40-7-112). See divorce court in Missoula Countyfor what the Fourth Judicial District's rules say about video appearances.
If You Are Leaving for Safety
The law recognizes that some people have to leave quickly. When a petitioner has fled the parties' residence, notice of the new residence must be withheld except by court order for good cause (MCA § 40-4-121(9)). The right to petition for an order of protection may not be denied because the petitioner left the residence to avoid abuse, and a petition may be filed in the county where the petitioner currently or temporarily resides (MCA § 40-15-301(4), (5)). Domestic violence is also one of the factors a court weighs in deciding which state should hear a custody matter (MCA § 40-7-108(2)(a)).
Anyone in danger should call 911. The National Domestic Violence Hotline is 1-800-799-7233. See orders of protection during a divorce.
Before You Go
- Tell your lawyer the date and destination as early as you can.
- If you have children, do nothing until notice has been given and you have an agreement in writing or a court order.
- Check the scheduling order for deadlines and hearing dates that fall after your move, and ask about remote attendance well ahead of time.
- Keep following every temporary order exactly as written.
This page explains Montana law in general as of the 2025 Montana Code Annotated and the current Montana Rules of Civil Procedure. Jurisdiction questions depend heavily on facts and may involve another state's law. It is not legal advice about your specific case.