Five thousand acres of ranch land outside of Billings. Two barns, a working cattle operation, water rights, mineral rights, and three siblings who haven’t agreed on anything since 1987.
You’re dead.
The ranch has been in the family for 60 years. You ran it. Your brother in Seattle wants to sell. Your sister in Bozeman wants to keep it but doesn’t want to deal with cattle. Your other brother still lives down the road and has been working the place for two decades. He figured he’d get it. You always meant to put that in writing.
You didn’t.
Montana’s intestacy laws just divided your ranch equally among your three siblings. What happens next is the kind of family dispute that generates legal fees, lasting resentment, and sometimes a forced sale of land that took generations to build.
A will would have cost you $69. The ranch dispute will cost your family hundreds of thousands in legal fees, family relationships, and heartache. Welcome to dying without a will in Montana.
Montana’s Intestate Succession Law
Montana follows the Uniform Probate Code (UPC) — Title 72 of the Montana Code Annotated. This gives Montana a relatively modern, standardized framework that reflects what most people actually want. “Most people,” of course, is not you specifically.
If you’re married with children who are also your spouse’s children:
Your surviving spouse inherits everything. Clean and simple.
If you’re married and have children from a prior relationship:
Your spouse gets $225,000 plus three-quarters of anything above that amount. Your children from the prior relationship split the remaining one-quarter. On a $1 million estate: your spouse gets $225,000 + $581,250 = $806,250. Your prior kids split $193,750. Probably not what anyone expected.
If you’re married with no children:
Your spouse inherits everything.
If you have children but no spouse:
Your children inherit in equal shares. If a child died before you, their share passes to their children (your grandchildren) per stirpes.
If you have no spouse and no children:
- Your parents (equally, or the surviving parent takes all)
- Your siblings (if both parents are dead)
- More distant relatives
- The state of Montana (escheat)
Unmarried partners: Montana intestacy law gives them nothing. Not a dollar. Doesn’t matter how long you’ve been together. Without a will, your partner is legally invisible.
Adopted children: Treated exactly like biological children.
Half-siblings: Inherit equally with full siblings in Montana.
What Probate Looks Like in Montana
Montana probate runs through the District Court in the county where you lived. Montana’s UPC adoption means both formal and informal probate procedures are available.
Informal probate: A simpler process administered by the court clerk/registrar without formal hearings. Faster and less expensive. Works well when heirs agree and the estate is straightforward.
Formal probate: Involves court hearings and a judge. Required when disputes arise, heirs can’t agree, or the estate is complex. More time-consuming and expensive.
Timeline:
- Informal probate: 6 to 12 months for typical estates
- Formal probate: 12 to 24 months or more
- If heirs dispute the distribution (very common with ranch properties): potentially years
Costs: Attorney fees, court costs, bond premiums, and administrative expenses typically run 3% to 6% of gross estate value. For a Montana ranch worth $2 million, that’s $60,000 to $120,000 in administrative costs — before the family gets anything. And that’s before any dispute-related legal fees.
Small estate affidavit: Montana allows a simplified collection process for small estates. If the total personal property value is under $50,000 and at least 30 days have passed since death, heirs can use an affidavit to collect assets without formal probate. Real estate — including ranch land — requires formal probate.
Notice to creditors: Published in a local newspaper. Creditors have a set period to file claims. This timeline cannot be rushed.
Montana-Specific Quirks
The Ranch/Agricultural Land Problem
This deserves special attention because it’s so common and so catastrophic in Montana.
Agricultural land in Montana can be worth millions. When that land passes through intestacy to multiple heirs who disagree about what to do with it, the results are predictable and painful:
Scenario 1: Forced partition. One sibling files a partition action with the court, demanding their fractional interest be separated out. For agricultural land, partition-in-kind (physically dividing the land) is often impractical. The court orders a partition sale — the land goes to auction, often below market value, and the family loses the property entirely.
Scenario 2: Dysfunctional co-ownership. Nobody forces a partition, but nobody can agree on anything either. The sibling running the operation can’t make major decisions without everyone’s consent. The siblings not on-site demand their share of profits but don’t want to contribute to expenses. It’s a slow-motion disaster that can last decades.
Scenario 3: Estate sales under pressure. The estate is open for a year or more, administrative costs are mounting, and heirs — some of whom need cash — agree to sell just to close the estate. The ranch that took 60 years to build sells in a rushed transaction at less than full value.
A will can designate exactly who gets the ranch, specify that it should continue as a working operation, create a buyout mechanism for other heirs, or establish a trust to hold it. Intestacy does none of this.
Water Rights
In Montana, water rights are property rights — and they’re complex. Agricultural operations depend on water rights, which can be worth significant money and are governed by Montana’s prior appropriation doctrine (“first in time, first in right”). When a ranch goes through intestacy and ultimately through a partition or forced sale, water rights have to be addressed separately, adding legal complexity and cost.
Mineral Rights
Montana has oil, gas, coal, and hard rock mining. If you own mineral rights (separately from surface rights, as is common in Montana), they’re part of your estate and go through intestacy separately. Multiple heirs owning fractional interests in mineral rights is a recipe for complexity — royalty checks get split, decisions about leasing require consent from all parties, and disputes over development are common.
No Estate or Inheritance Tax
Montana has no state estate tax and no inheritance tax. This is straightforwardly good news. The federal estate tax only applies to estates over $13.6 million in 2026. Many Montana ranch families have significant land values but may still be under this threshold — though the estate tax is worth monitoring as land values continue to increase.
How to Avoid This
The ranch scenario at the top of this article isn’t hypothetical. It plays out in Montana constantly. The state bar association has seen it. The District Courts have seen it. The outcome is almost always painful, expensive, and irreversible.
A will isn’t complicated. You say: the ranch goes to the sibling who’s been working it, with a buyout provision for the others. Or: the ranch goes into a family LLC. Or: sell it and split the proceeds. Whatever you actually want. Written down. Legal.
Killswitch makes this happen for $69 one-time. Valid in all 50 states including Montana. Legally enforceable. Takes about an hour.
You spent decades building something. Spend one hour making sure it goes where you want it to go.
killswitch.rip — because “I meant to get around to it” is not an estate plan.
Frequently Asked Questions
Q: Can my ranch go through probate in Montana without going to court?
A: Possibly — if heirs agree and the estate qualifies for informal probate under Montana’s UPC procedures. A court registrar can handle straightforward intestate estates without formal hearings. However, if heirs disagree (very common with high-value ranch property), if there are creditors or disputes, or if the estate is complex, formal court involvement is required. Real estate always requires some probate process — it can’t be transferred via the small estate affidavit.
Q: What happens to my water rights if I die without a will in Montana?
A: Water rights in Montana are property rights that pass through your estate like other property. Without a will, they’re distributed according to intestacy — meaning multiple heirs could end up with fractional interests in the same water rights. This creates complications for agricultural operations that depend on those rights. A will lets you keep water rights with the land and the person who needs them.
Q: Does Montana recognize common-law marriage?
A: Montana does recognize common-law marriage — but only if both parties intended to be married, lived together as a married couple, and held themselves out publicly as married. This is a higher bar than just “living together.” If you’re in a common-law marriage that Montana recognizes, your spouse has inheritance rights. If you’re just cohabiting without meeting the common-law marriage standard, your partner gets nothing under intestacy. A will eliminates all ambiguity.
Q: What’s Montana’s small estate threshold?
A: Montana allows an affidavit process to collect personal property if the estate is under $50,000 and 30 days have passed since death. This doesn’t cover real estate, ranch land, or livestock — those require formal probate. Most Montana agricultural estates will need to go through the full probate process.
Q: How do I keep my ranch from being sold after I die?
A: You need a will at minimum, and possibly a more sophisticated structure like a family LLC or trust. In your will, you can designate who inherits the ranch, specify that it should be maintained as a working operation, and create a mechanism for other heirs to receive their fair share without forcing a sale (for example, by giving the ranch to one heir and leaving other assets or a buyout obligation to the others). Killswitch handles the will; talk to a Montana estate attorney about whether a trust or business structure makes sense for your specific situation.
