Who Inherits in Montana Without a Will? Intestate Succession Explained

When someone dies without a will in Montana, the estate does not go to the state — not unless there are absolutely no living relatives, which is genuinely rare. Instead, Montana's intestate succession laws step in and determine exactly who inherits, in what order, and in what proportions.

These rules apply automatically. There are no elections to make, no petitions to file to establish the hierarchy. Montana's Uniform Probate Code has already answered the question of who gets what. The more pressing question for families is understanding whether those statutory rules align with what they expected, and what the actual process of transferring assets looks like when there is no will guiding it.

The Basic Distribution Rule: Surviving Spouse and Children

The most common intestate scenario involves a surviving spouse, children, or both. Montana law handles these differently depending on the family structure:

Surviving spouse, no children: The surviving spouse inherits the entire probate estate.

Surviving spouse and children who are also the spouse's children: The surviving spouse inherits the entire probate estate. Montana does not split the estate between a spouse and shared children — the spouse gets everything.

Surviving spouse and children from a prior relationship: This is where things split. The surviving spouse inherits the first $225,000 of the estate plus half of the remainder. The decedent's children share the other half equally.

Children, no surviving spouse: The children divide the estate equally among themselves.

One child predeceased the decedent: That child's share passes to their own children (the decedent's grandchildren) by representation, meaning the grandchildren step into their parent's place.

Further Down the Line: If There's No Spouse or Children

If the decedent had no surviving spouse and no children, Montana's intestate succession rules continue down a defined chain of relatives:

1. Surviving parents — they share the estate equally, or one parent takes all if the other has also died
2. Siblings of the decedent — if both parents are gone, siblings divide the estate equally
3. Grandparents — if there are no parents or siblings, grandparents on both sides share the estate
4. Aunts, uncles, and their descendants — the search continues to more distant relatives if necessary

The chain of potential heirs in Montana reaches farther than most people expect. As long as there is a blood relative who can be identified and located, the estate passes to that person rather than escheating to the state.

Escheat to the state (the formal term for the estate passing to Montana's government) only occurs when there are truly no living relatives who can be found after a diligent search.

What "Probate Estate" Means Here

It is worth being precise about what passes by intestate succession. Only assets in the probate estate are governed by these rules. Non-probate assets pass completely outside this hierarchy, regardless of who the intestate heirs are:

• Life insurance with a named living beneficiary goes directly to that beneficiary
• Bank accounts titled as Payable on Death go directly to the named beneficiary
• Joint tenancy property passes automatically to the surviving joint owner
• Retirement accounts with designated beneficiaries pass to those beneficiaries
• Property transferred via a Transfer on Death deed passes to the named beneficiary

A family member could be the sole heir under intestate succession and still receive nothing — if the decedent held all meaningful assets in non-probate form. Conversely, a family member might be excluded from all non-probate transfers and still inherit through the probate estate.

The Process for Intestate Estates

Without a will, there is no nominated Personal Representative. Montana law establishes who has priority to apply for that role:

1. The surviving spouse
2. Other heirs (in the order of inheritance)
3. After 45 days have passed, creditors may also apply

The applicant files for informal probate with the clerk of the district court after the mandatory 120-hour (five-day) waiting period following death. For small estates where probate assets are $100,000 or less in total value, the heirs may be able to use the Collection by Affidavit process instead of opening formal probate, which bypasses the court entirely.

Once Letters of Authority are issued, the Personal Representative must notify creditors, compile an inventory of assets, satisfy valid debts, and distribute the remainder to the heirs according to the statutory formula.

Half-Blood Relatives and Adopted Children

Two situations that come up more frequently than people expect:

Half-siblings: A half-blood relative — someone who shares only one biological parent with the decedent — inherits the same share as a full-blood relative. Montana does not reduce the inheritance of half-blood heirs.

Adopted children: An adopted child has full inheritance rights from the adoptive parents, exactly the same as biological children. Adoption severs the legal relationship with the biological parents, so an adopted child generally does not inherit from biological relatives under intestate succession.

Stepchildren: Stepchildren who were not legally adopted do not inherit under intestate succession. Only legally adopted children have inheritance rights in an intestate estate.

Practical Next Steps

If you are the surviving spouse or a child of someone who died without a will in Montana, the first priority is understanding what assets exist and how they are titled. Work through this sequence:

1. Identify all non-probate assets (joint accounts, TOD designations, beneficiary designations) — these transfer independently
2. Total the probate estate value — if it is $100,000 or less, the affidavit shortcut may be available
3. Determine who has priority to serve as Personal Representative
4. If probate is necessary, file the application with the district court after the 120-hour waiting period

The Montana Estate Settlement Guide covers the full process for intestate estates — from the initial asset inventory through final distribution — including the specific forms and timelines for both the affidavit procedure and informal probate.

Dying without a will does not create chaos in Montana. The state's rules are clear. What families need is a working knowledge of those rules and the administrative sequence to apply them correctly.

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