Reviewed July 2026
Filing for Divorce in Montana
A plain-language look at how divorce works under Montana law: who can file, how long it takes, what it costs, and where Montana's own court forms and self-help resources are.
Virdix's document-preparation product currently prepares divorce paperwork for California cases only. This page explains how the process works under Montana law, using Montana's own court forms and self-help resources, for people researching before they file. It is not legal advice, and Virdix does not prepare or file Montana divorce paperwork. See how Virdix works for California divorces.
Montana is unusual in that a petitioner can establish the required 'irretrievable breakdown' with zero separation time at all, alleging 'serious marital discord' is a standalone ground under MCA 40-4-104 that doesn't require the 180-day separation period many readers might expect from a fault-adjacent framing. Montana also runs a statewide e-filing portal that reads, on paper, like full modern infrastructure, but the courts' own instructions confirm it is not enabled for self-represented litigants, so pro se Montanans still file on paper at the county Clerk of District Court even though attorneys e-file. Montana's summary dissolution track under MCA 40-4-130 is broader than many states' simplified-divorce options: it can be used even when the couple has minor children, as long as a parenting plan and child/medical support have already been agreed and judicially or administratively determined before the summary petition is filed, rather than being limited to short, childless marriages the way some states cap it.
Grounds for divorce in Montana
No-fault grounds
- The marriage is irretrievably broken, shown by 180+ days of separation or serious marital discord, the sole ground
Montana abolished fault-based divorce.
Source: mca.legmt.gov
Who can file: residency rules
At least one spouse must have been domiciled in Montana, or stationed there on active military duty, for at least 90 days immediately before the petition is filed. This is a jurisdictional requirement: the district court cannot grant a dissolution if neither spouse meets it.
MCA 40-4-104(1)(a)
Source: mca.legmt.gov
How long it takes
No fixed statutory cooling-off period after filing. To establish that the marriage is irretrievably broken, a petitioner shows either that the spouses have lived separate and apart for more than 180 days, or that there is serious marital discord adversely affecting one or both parties' attitude toward the marriage, the second ground requires no separation period at all. After the respondent is served, they have 21 days to file a response before the case can proceed toward a hearing or default.
MCA 40-4-104(1)(b)
Source: mca.legmt.gov
That figure is the statutory floor, not a promise. Service, exchanging financial disclosures, and the court's own hearing calendar routinely add time on top of it, and a contested case takes longer than an uncontested one regardless of the minimum. California, by comparison, requires a mandatory six month waiting period from the date of service.
Cost and filing fees
$200 to file the Petition for Dissolution of Marriage (this single fee covers summary and joint dissolution filings too), plus a separate $50 judgment fee charged when the decree is entered, $250 total. This is a statewide fee set by the Clerks of District Court fee schedule; it is uniform across all counties (unlike some states where fees are set county-by-county).
Source: courts.mt.gov
California's own statewide filing fee is generally $435 to $450 statewide, with a fee waiver available for those who qualify.
Divorce forms and papers
The petition
Petition for Dissolution of Marriage Without Minor Children (MP 112), or the equivalent form in the "Dissolution with Children" packet. Montana uses a numbered self-help form system (the "MP" series, e.g., MP 112 petition, MP 400 summons, MP 500 proposed property distribution, MP 713 decree) published as part of step-by-step self-help packets, not a single standalone Judicial-Council-style form the way California uses FL-100.
Source: courts.mt.gov
Fee waiver
Statement/Affidavit of Inability to Pay Filing Fees and Other Costs (unnumbered write-in form, sometimes called "Affidavit of Inability to Pay Filing Fee" in self-help materials), authorized under MCA 25-10-404 through 25-10-406. Must be approved by a district court judge before the petition is accepted for filing without payment.
Source: courts.mt.gov
Montana publishes fillable forms for this process.
California uses standardized Judicial Council forms, starting with the Petition (Form FL-100), across every county. See California's own divorce forms.
Filing online
Statewide e-filing system exists (mtefile.courts.mt.gov) but is effectively attorney-only, the Montana courts' own e-filing instructions state e-filing is not enabled for self-represented (pro se) litigants at this time. Self-represented filers file paper documents in person, by mail, or in some counties by email directly with the Clerk of District Court in the county where either spouse lives.
Source: courts.mt.gov
Uncontested and simplified divorce
Montana offers a distinct simplified or summary track.
Source: mca.legmt.gov
California's equivalent is uncontested divorce in California, which uses the same statewide forms as any other case but moves faster once both spouses agree on every term.
Filing without a lawyer
Montana allows self-represented filers, and most divorces filed in the state proceed this way. Because Virdix prepares paperwork for California cases only, a Montana filer handling their own case works directly from Montana's own forms and self-help materials rather than a Virdix-prepared packet. Montana's official self-help resources are the direct source for the current forms and instructions.
For how self-representation works in the state Virdix does serve, see divorce without a lawyer in California and DIY divorce vs. hiring a lawyer.
More about divorce in Montana
How property is divided
Equitable distribution (MCA 40-4-202). The court equitably apportions marital property considering factors like the marriage's duration, each spouse's age, health, income, and employability, and non-financial contributions such as homemaking; there is no presumption of an equal 50/50 split.
Source: mca.legmt.gov
Court structure
Montana has a single trial court of general jurisdiction, the District Court, organized into 22 judicial districts covering all counties; there is no separate statewide family court division. Dissolution cases are filed with the Clerk of District Court in the county where either spouse resides and sit on the same docket as other civil matters, though some districts use standing masters or dedicated family law calendars as a matter of local practice.
Source: courts.mt.gov
Spousal support
No formulaic guideline. "Maintenance" is awarded at the court's discretion under MCA 40-4-203, based on the requesting spouse's need and the other spouse's ability to pay, considering factors like financial resources, time needed for education/training, standard of living, and marriage duration.
Source: mca.legmt.gov
Child support guideline
Income Shares Model, implemented through the Montana Child Support Guidelines under Mont. Admin. R. 37.62. Both parents' combined income is run against a statewide guidelines table, with the total obligation split proportionally by each parent's share of that combined income.
Source: dphhs.mt.gov
Parenting class requirement
Not independently confirmedNot required by statute statewide.
Not a single uniform statewide mandate. MCA 40-4-226 authorizes courts to require parents in cases involving minor children to complete a parenting education program (often called "Parenting Through Divorce/Separation"), and many individual judicial districts order it as local practice, but whether it's required and which provider is accepted varies by district, confirm with the specific district court.
Source: mca.legmt.gov
Residency exceptions
Active-duty military members stationed in Montana satisfy the residency requirement the same as civilian domiciliaries under MCA 40-4-104, there is no separate carve-out beyond that built-in equivalence.
California is the only state on this site with a full county-by-county breakdown. See how California's divorce process compares across its 58 counties.
This page is general information about Montana divorce procedure, not legal advice for your situation. Laws, fees, and forms change over time; confirm current details with Montana's own courts before relying on anything here. Virdix is not a law firm, is not licensed to practice law in Montana, and does not prepare or file Montana divorce paperwork. It is not a substitute for an attorney licensed in Montana.