If you or your spouse owns a business, that ownership interest is property a Montana court can divide. Under MCA § 40-4-202(1) the court equitably apportions the assets of either or both spouses, whoever holds title. A business is harder than a bank account for three reasons: nobody knows its value until someone works it out, it usually cannot be cut in half, and it has to keep operating while the divorce is pending. This page is part of our Montana Divorce Guide.
A Business Interest Is Property
The disclosure statutes define an asset as "any real or personal property of any nature however and whenever acquired," tangible or intangible (MCA § 40-4-251(1)). Shares in a corporation, a membership interest in an LLC, a partnership interest, and a sole proprietorship's equipment, accounts, and name all fit.
What the court does with it is governed by the same factors as any other asset. See how property is divided in Montana. Several of those factors bear directly on a business: each spouse's occupation, vocational skills, and sources of income, the opportunity of each for future acquisition of capital assets and income, and the contribution of a spouse as a homemaker or to the family unit. A spouse who kept the household running while the other built the company has made a contribution the statute tells the court to consider.
Valuation in General Terms
Montana's statute requires disclosure of value but does not say how to calculate it. Business appraisers generally group their methods into three approaches. This table describes them at a high level. It is background, not a legal rule.
| Approach | What it does | Often used for |
|---|---|---|
| Asset approach | Adds up what the business owns and subtracts what it owes. | Businesses whose worth is mostly in equipment, inventory, or real estate |
| Income approach | Estimates value from the earnings or cash flow the business is expected to produce. | Operating businesses with a track record of earnings |
| Market approach | Compares the business with sales of similar businesses. | Businesses in fields where comparable sales data exists |
Questions that can drive disagreement include the date as of which the business is valued, how much of its earnings are really the owner's pay for working there, and whether any discount applies to an interest that cannot easily be sold. The statute does not answer them. They depend on the facts, and a valuation professional and your lawyer should work through them together.
Spouses may agree on one neutral appraiser instead of hiring one each. That fits an amicable or cooperative process, and nothing in the statutes prevents it.
Who Keeps the Business
The statute does not list outcomes, but in practice there are three:
- One spouse keeps it. The other receives different property, a payment, or payments over time. This fits when one spouse runs the business and the other does not.
- Both keep an interest. Spouses who work well together sometimes remain co-owners. That requires clear written terms on control, pay, and what happens if one wants out later, and it means continuing a financial relationship after the divorce.
- The business is sold. The proceeds are divided. This may be the only fair option when neither spouse can buy out the other and there is not enough other property to balance the award.
The court also considers whether a property award is in lieu of or in addition to maintenance, so a buyout and maintenance are best considered together.
Structuring a Buyout
When the buyout is paid over time, the spouse receiving payments is in effect lending money to the other. The terms that protect both sides are the ones any lender would ask about: the amount, the schedule, interest, what secures the debt, and what happens on a missed payment, a sale of the business, or a death. Terms of a separation agreement that are set out in the decree are enforceable by all remedies available for enforcing a judgment, including contempt, and as contract terms (MCA § 40-4-201(5)).
Property terms are very hard to change later. A court may revoke or modify them only on the written consent of both spouses or on grounds that would justify reopening a judgment (MCA § 40-4-208(3)). A payout schedule should therefore be one the business can actually sustain.
Running the Business While the Case Is Pending
The automatic economic restraining orderrestrains both spouses from transferring, encumbering, concealing, or disposing of marital property without written consent or a court order. It makes an exception for transactions "in the customary and usual course of operating an existing business" (MCA § 40-4-126(1), order paragraph 1(b)). Paying suppliers and employees, buying inventory, and collecting receivables are ordinary operations.
For anything out of the ordinary, the order sets a notice procedure. A spouse proposing an extraordinary expenditure must file a notice at least 14 days before acting, the other spouse may object, and the burden of justifying the action is on the spouse proposing it. If you are unsure which side of the line a transaction falls on, ask before you act. A court may also consider what the filing spouse did within a reasonable time before filing that would have violated the order (order paragraph 9).
Records and Disclosure
Both spouses owe each other full financial disclosure. The final declaration must include all material facts and information about the valuation of all assets that are contended to be marital or in which the marital estate is contended to have an interest (MCA § 40-4-253(2)(b)). For a business, the records that bear on value include tax returns, financial statements, and ownership documents.
The disclosure statutes do not replace formal discovery, and they do not impede the court's power to issue protective orders (MCA § 40-4-258). A spouse who owns a business can ask the court to protect trade secrets and customer information from wider circulation. That is a request to limit who sees the information, not permission to withhold it. The consequences of leaving assets or income out are covered in hidden assets and dissipation.
When to Bring in Other Professionals
A divorce decree divides the spouses' interests. It does not rewrite the company's operating agreement, bylaws, buy-sell agreement, loan documents, or licenses, and those documents may restrict who can own an interest or require consent to a transfer. The tax treatment of a buyout or a sale is its own subject.
A&M Law is a family law firm and does not practice business law. For entity, contract, and lender questions you need a business attorney, and for tax questions a CPA or tax attorney. We work alongside those advisers on the divorce side. If the business is agricultural, see farms and ranches in divorce.
This page explains Montana law in general as of the 2025 Montana Code Annotated. It is not legal, tax, or valuation advice about your specific case.