Montana uses the term "dissolution of marriage" rather than "divorce." The sole ground for dissolution under Montana Code § 40-4-102 is that the marriage is irretrievably broken. Montana is a no-fault jurisdiction, meaning neither party needs to prove wrongdoing or misconduct. The irretrievable breakdown is the only basis required for a decree of dissolution.
To initiate dissolution proceedings in Montana, one spouse files a Petition for Dissolution of Marriage with the District Court in the county where either party resides. The petitioner must provide proper notice to the other spouse. The respondent has an opportunity to respond. In uncontested cases where both parties agree on all material terms, the case can proceed more quickly with a joint petition or stipulated agreement. In contested cases, the court holds hearings to resolve disputes over property division, custody, and support.
Under Montana Code § 40-4-103, either you or your spouse must be domiciled in Montana or have been stationed on active military duty in Montana for at least 90 days immediately before filing. Montana courts interpret "domiciled" to mean having a fixed permanent home with the intent to remain. Military personnel are accorded special consideration for residency purposes. The 90-day requirement is strictly applied.
Montana follows the equitable distribution principle under Montana Code § 40-4-202. The court divides marital property in a manner it considers just and equitable. Just and equitable does not necessarily mean equal; rather, it means fair under the circumstances of the particular case.
The court considers the contributions of each spouse to the acquisition, preservation, and appreciation of marital property. Non-monetary contributions, such as homemaking and child rearing, are valued alongside financial contributions. The court evaluates the age and health of each party and their ability to earn income in the future. The court considers whether one party contributed to the education or professional development of the other. The court examines the length of the marriage and how long the parties have been separated. The court may consider the conduct of the parties when it is relevant to the case, though misconduct is not automatically a determining factor.
Marital property includes all property acquired during the marriage, regardless of whose name appears on the title. Property owned before marriage, received through gift or inheritance, or excluded by valid agreement is separate property. Separate property is not divided between the parties. If separate property is commingled with marital property or is enhanced through marital efforts, it may be treated as marital property or only the enhancement may be divided.
Montana law refers to custody as "parental rights and responsibilities" under Montana Code § 40-4-212. The court determines parenting arrangements based on the best interests of the child. The court evaluates the existing relationship between the child and each parent, the preference of the parents regarding custody, and the preference of the child if the child is of sufficient age and capacity to express a meaningful preference.
Montana courts consider the love and affection existing between the child and each parent. The court evaluates the ability of each parent to provide the child with adequate food, shelter, and supervision. The court considers the quality of the relationship between the child and each parent. The stability and permanence of the home each parent can offer are important factors. The adjustment of the child to the current home, school, and community is relevant. Any history of abuse, neglect, or substance abuse by either parent is considered. Montana also considers any special needs of the child and how well each parent can meet them.
Montana permits joint parental rights and responsibilities (joint custody) and sole parental rights and responsibilities (sole custody). The court creates a parenting plan that specifies the schedule for parenting time, decision-making authority, and communication between parents. Joint parenting arrangements are favored when both parents are capable and willing to share responsibilities.
Montana's statutory framework uses the terminology "dissolution of marriage" rather than "divorce" as defined in Montana Code § 40-4-101. This terminology reflects Montana's approach to ending marriages. The legal effect is the same as divorce in other states; it terminates the marriage and addresses property division, custody, and support.
Montana Code § 40-4-109 requires a minimum 21-day waiting period after service of the summons on the respondent before a decree of dissolution can be entered. This waiting period applies to all dissolutions, whether contested or uncontested. Montana courts have no discretion to waive or shorten this period. The 21 days is measured from when the respondent is served, not from filing.
If separate property appreciates in value during the marriage, the appreciation may be subject to division. If the appreciation is due to efforts of both parties or investment of marital property, the increase is typically treated as marital property or at least subject to equitable division. However, appreciation due solely to market forces without any marital effort may remain the separate property of the owning spouse.
Montana Code § 40-4-212 requires that a parent seeking to relocate with a child must obtain consent from the other parent or court approval. The court considers factors including the quality of the relationship with the non-moving parent, educational opportunities, and whether the move is in the best interests of the child. Court approval is necessary if the other parent objects to the relocation.