Montana Maintenance (Alimony) Laws: How It Works (2026)

Montana uses the term "maintenance" rather than alimony. A court can order one spouse to pay maintenance to the other during or after a divorce, but only after the requesting spouse clears a two-part legal threshold. Even then, no formula dictates the amount or length of payments. Every decision is discretionary, guided by six statutory factors under Mont. Code Ann. (MCA) 40-4-203.

Information last verified on June 1, 2026.

Estimate your situation: Try our free Montana alimony calculator to estimate spousal support and see the factors a Montana court weighs.

What Is Maintenance in Montana?

When a Montana marriage ends through dissolution or legal separation, the court may order one spouse to pay the other a regular sum of money to help cover living expenses. Montana statutes label this payment "maintenance." The older term "alimony" is still used conversationally, but the statute and court forms consistently say maintenance.

Maintenance is separate from the division of marital property and from any child support obligation. A spouse can receive both maintenance and a share of marital assets, though the court will consider property received when evaluating whether maintenance is appropriate.

Either spouse can request maintenance, regardless of gender. The court decides based on each spouse's financial situation, not on who filed for divorce or what happened during the marriage.

The Two-Part Threshold Test

Before a Montana court even considers how much maintenance to award, the requesting spouse must meet both parts of a threshold test found in MCA 40-4-203(1). A court may grant maintenance only if the requesting spouse:

1. Lacks sufficient property, including any marital property awarded in the divorce, to provide for his or her reasonable needs; and
2. Is unable to support himself or herself through appropriate employment, or is the custodian of a child whose condition or circumstances make it appropriate that the custodian not be required to seek employment outside the home.

Both conditions must be present. Meeting only one is not enough.

The first prong looks at whether the property awarded in the divorce, plus any separate property the spouse already holds, is sufficient to cover basic needs. If a spouse receives substantial assets and those assets generate enough income or can be converted to meet reasonable expenses, the threshold may not be met.

The second prong focuses on earning capacity. If a spouse is currently employed or could reasonably obtain employment that meets their needs, maintenance is unlikely to be awarded. The exception is for a spouse who is the primary caregiver of a young child or a child with special needs where working outside the home would not be appropriate given the circumstances.

The "reasonable needs" and "appropriate employment" standards are not defined by formula. Judges apply them to the specific facts of each case.

How Courts Decide Amount and Duration

If both parts of the threshold are satisfied, the court moves to the second stage: setting the amount and length of maintenance. Under MCA 40-4-203(2), the court must consider six factors. No single factor controls, and there is no statewide guideline worksheet like the ones used for child support.

Factor 1: Financial Resources of the Requesting Spouse

The court looks at the requesting spouse's total financial picture after the divorce, including income from employment, investment income, retirement assets, and the property received in the settlement. The goal is to understand the gap between what that spouse has and what they need.

Factor 2: Time Needed for Education or Training

If the requesting spouse is not currently employable at a sufficient wage but could become self-supporting with additional schooling or job training, the court may award shorter-term rehabilitative maintenance. The duration would be set to cover roughly the time it would realistically take to complete that education or training and find employment.

Factor 3: Standard of Living During the Marriage

Courts consider the lifestyle both spouses shared while married. This does not mean the lower-earning spouse is guaranteed to maintain that exact standard, but it is a reference point. A very long marriage with a high standard of living weighs toward a more substantial award.

Factor 4: Duration of the Marriage

Longer marriages generally support larger or longer maintenance awards. A short marriage of a few years may produce little or no maintenance, even if a disparity exists. A marriage of twenty or thirty years gives the court more reason to award indefinite or long-term maintenance, particularly if one spouse left the workforce for an extended period.

Factor 5: Age and Physical or Emotional Condition

A spouse who is older, in poor health, or dealing with a disability that limits earning capacity is less likely to become fully self-supporting. These facts weigh toward a more substantial or open-ended award. A younger, healthy spouse who can retrain and re-enter the workforce may receive only temporary support.

Factor 6: Ability of the Paying Spouse to Meet Their Own Needs

The court will not order maintenance if doing so would leave the paying spouse unable to meet their own reasonable living expenses. Both spouses' financial circumstances matter. The payer's income, obligations, and realistic budget all factor into what the court considers a workable maintenance amount.

No Formula: Pure Judicial Discretion

Montana has no worksheet, no percentage guideline, and no minimum or maximum maintenance payment. Judges in different counties may reach different results on similar facts. The outcome depends heavily on the credibility of testimony, the quality of financial documentation presented, and the specific judge assigned to the case.

When Maintenance Ends or Can Be Changed

Automatic Termination

Under MCA 40-4-208(4), unless the divorce decree or a written agreement between the parties says otherwise, the obligation to pay maintenance ends automatically when:

• Either spouse dies; or
• The receiving spouse remarries.

The paying spouse does not need to go back to court to stop payments in these circumstances. If the receiving spouse remarries and the payer continues paying by mistake, recovery of those overpayments can be complicated, so it is wise to confirm the change in status promptly.

Some decrees include cohabitation clauses that reduce or end maintenance if the receiving spouse lives with a new partner, but Montana law does not impose this automatically. It must be written into the order.

Modification for Changed Circumstances

Either spouse can ask a court to modify the amount or duration of maintenance under MCA 40-4-208(1). The standard is demanding. The requesting party must show that circumstances have changed in a way that is both substantial and continuing, and that continuing to enforce the original terms would be unconscionable.

A short-term financial setback typically does not meet this standard. Courts look for permanent or long-term changes, such as a serious illness, a significant and lasting change in income, or disability. The modification only applies to payments that come due after the other spouse receives actual notice of the motion. It does not reach payments that have already accrued.

Property Division Cannot Be Changed

Montana law treats property division as final. Under MCA 40-4-208(1), courts cannot reopen the property settlement except by written agreement of both parties or in limited circumstances that justify reopening a final judgment. This is distinct from maintenance, which can be modified.

Federal Tax Rules on Maintenance

The federal tax treatment of maintenance payments changed significantly for agreements signed after December 31, 2018, following the Tax Cuts and Jobs Act of 2017.

For divorces finalized or maintenance agreements executed after that date:

• The paying spouse cannot deduct maintenance payments from federal taxable income.
• The receiving spouse does not include maintenance payments in federal gross income.

For divorces finalized on or before December 31, 2018, the old rules still apply unless the parties modify their agreement after that date and the modification expressly opts into the new treatment. Under the old rules, payments were deductible by the payer and taxable to the recipient.

Montana follows federal adjusted gross income as a starting point for its state income tax. Because maintenance is not included in federal gross income under post-2018 agreements, it is generally also not subject to Montana state income tax for the recipient.

Tax rules are complex and fact-specific. Consult a qualified tax professional about the consequences in your individual case.

How Maintenance Differs from Montana Child Support

Maintenance and child support are separate legal obligations in Montana, governed by different statutes and calculated by different methods.

Child support in Montana follows statewide guidelines and an income shares formula under MCA 40-4-204. The amount is calculated using both parents' incomes and a set schedule, giving a presumptive number that the court can deviate from only with written findings.

Maintenance has no formula. It is entirely discretionary after the threshold test is satisfied. The two obligations also end differently. Child support continues until a child reaches adulthood (or longer if a child has a qualifying disability). Maintenance ends on death or remarriage unless the decree provides otherwise.

You can learn more about how Montana calculates child support on the Montana child support laws page.

For a full comparison of maintenance rules across all fifty states, see the Alimony laws by state hub.

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The information on this page covers Montana law under MCA 40-4-203 and 40-4-208 and federal tax rules under the Tax Cuts and Jobs Act. It is for general informational purposes only and does not constitute legal advice. Laws can change. Consult a licensed Montana family law attorney for guidance on your specific situation.

Last updated: June 1, 2026.

More Montana Laws

• Montana Child Custody Laws
• Montana Child Support Laws
• Montana Common Law Marriage Laws
• Montana Divorce Laws