Montana · Family Court
Montana family court: 90 days in state before filing to file for divorce, fee $170+. Custody, support, and property division guide.
Court Name
Montana District Court
Filing Fee
$170
Response Deadline
21 days after service
Hearing Timeline
30–90 days after filing
Statute
MCA §40-4-101 et seq.
✓ Verified as of 2026-03-30
Montana District Court handles family law matters. Cases here include dissolution of marriage, parenting plans and custody, child support, maintenance (alimony), property and debt division, and orders of protection. Family court proceedings are among the most consequential civil matters a person navigates — decisions made here affect children, property, and financial stability for years. ThreadLock helps you organize the documentation that family court decisions depend on: incident records, communication logs, financial records, and a chronological account of events — the kind of organized case file that moves proceedings forward and supports your position.
Either spouse may file for divorce or family law relief in Montana. Unmarried parents may also file custody and support cases without a divorce proceeding. Residency requirement: 90 days in state before filing. Only one spouse needs to meet the residency requirement. Fee waivers are available for those who cannot afford the filing fee. Self-represented litigants (pro se) are permitted in Montana family court. If children are involved, the court will also consider their best interests independently, regardless of what the parties agree to.
To begin a family court case in Montana, file the petition or complaint for divorce, custody, or support with the Montana District Court. The filing fee is $170. After filing, serve the petition on the other party.
Waiting period: 20 days after filing before final hearing. The respondent has 21 days after service to file a response or answer. If the respondent does not respond, you may seek a default judgment. If they respond and contested issues remain, the court will schedule conferences and hearings.
Contested matters proceed through hearings, and complex cases may go to trial. Uncontested cases — where all issues are agreed in writing — resolve significantly faster. Typical timeline from filing to resolution: 30–90 days after filing.
All agreements on custody, support, and property division must be approved by the court — parties cannot simply agree privately and consider the matter closed. Orders and decrees are legally enforceable, and violations can result in contempt proceedings.
Family court decisions depend heavily on documentation. The Montana District Court considers evidence of parenting history, financial circumstances, living conditions, and the pattern of the relationship when making orders about dissolution of marriage, parenting plans and custody, child support, maintenance (alimony), property and debt division, and orders of protection.
The most important documents in family court cases include: the marriage certificate, financial statements (income, assets, debts), tax returns, property records, communications between parties (emails, texts), records of parenting time and exchanges, documentation of any incidents of domestic violence or substance abuse, and evidence of each parent's relationship with the children.
The most overlooked evidence in custody and parenting cases is the contemporaneous record — notes written at the time of an incident, not reconstructed afterward. Courts give more weight to records that were created in real time than to summaries written later. ThreadLock's incident journal lets you log events the day they happen, attach photos or documents, and build a timestamped record that holds up to scrutiny. The timeline builder organizes those entries chronologically, and the exhibit export tool packages everything into a labeled PDF ready for court or mediation.
How long must I live in Montana before I can file for divorce?
90 days in state before filing. Filing before meeting this requirement will result in the court dismissing your case for lack of jurisdiction. Only one spouse needs to meet the residency requirement.
How long does the divorce process take in Montana?
Waiting period: 20 days after filing before final hearing. After that, an uncontested divorce can often finalize quickly if all issues are agreed. Contested divorces involving children or disputed property can take significantly longer.
How does Montana determine child custody?
Montana family courts use the best interests of the child standard. Factors include each parent's relationship with the child, the child's current living situation and stability, each parent's ability to meet the child's needs, and the child's own preferences (depending on age and maturity). Courts generally prefer arrangements that allow children to maintain relationships with both parents unless safety concerns require otherwise.
How is property divided in a Montana divorce?
Montana uses equitable distribution — courts divide marital property in a way that is fair, which does not always mean equal. Factors include the length of the marriage, each spouse's income and financial contributions, and the economic circumstances of each party after divorce. Property owned before the marriage or received as a gift or inheritance may be treated as separate.
What does it cost to file for divorce in Montana?
The court filing fee is $170. This does not include attorney fees, mediation costs, or other court fees that may apply. Fee waivers are available for those who qualify based on financial hardship — ask the court clerk for the application.
ThreadLock helps you document incidents, organize evidence, and prepare court-ready materials, so you walk in prepared.
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