To file for divorce in Montana you must have lived in the state for a minimum of 90 days prior to filing for divorce. If you have children under the age of 18, the children must have
lived in Montana for at least six months before you can file for divorce. There are a few exceptions, but, generally, Montana courts do not have jurisdiction to make judgments regarding minor children unless they have lived in the state for at least six months.

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In Montana the ground for divorce is irretrievable breakdown of the marriage. In
order to show that there is an irretrievable breakdown of the marriage, you must assure the court that either you have lived separate and apart from your spouse for 180 days prior to filing for divorce or there is serious marital discord which adversely affects the attitude of you or your spouse.

Example of a Montana Divorce Form

Montana Divorce Forms

Montana provides convenient packets of divorce forms along with instructions for the forms. Depending on the circumstances of he case, you may not need to file all of the forms.