Most of what adult children need to know about Montana estate and incapacity planning is concentrated in a small number of documents and a handful of state-specific rules. Montana's adoption of multiple uniform acts makes its baseline framework relatively clean. The complications for many Montana families are around agricultural property and the practical challenge of getting good legal counsel in rural counties.
The four documents to have in place
1. Montana Durable Power of Attorney (Mont. Code Ann. §72-31-301 et seq.)
Montana adopted the Uniform Power of Attorney Act, which provides a clean statutory framework for Powers of Attorney.1 The statute distinguishes between general and specific authority, sets out execution requirements (notarization is required for the POA to be effective, and most institutions require it), and provides default rules where the document is silent.
Important features:
- The POA is durableby default under the Uniform Act — it survives the principal's incapacity unless the document specifies otherwise. This is the opposite of the older common-law default, and most families want durability.
- Certain "hot powers" (gift authority, the power to create or amend trusts, the power to change beneficiary designations) must be specifically granted in the document. A POA without explicit gift authority may not allow the agent to make gifts for Medicaid planning or family transfers.
- The statutory short-form template (in the Code) can be used directly, though a tailored Montana POA from a local attorney is often worthwhile.
Cost to draft a Montana DPOA typically runs $200–$600.
2. Montana Declaration of Health Care (Mont. Code Ann. §50-9)
Montana's Rights of the Terminally Ill Act provides for written advance directives expressing your parent's preferences about life-sustaining treatment.2 The Declaration of Health Care can be combined with a designation of a healthcare agent. Most Montana attorneys integrate these into a single instrument.
Execution requires the principal's signature with either two qualifying witnesses or notarization. Montana DPHHS publishes a model form free of charge.
3. Last Will and Testament
A Montana will needs to be in writing, signed by the testator, and witnessed by two credible witnesses (Mont. Code Ann. §72-2-522). Montana allows self-proving wills with a notarized self-proving affidavit. Montana also recognizes holographic (handwritten) wills if the material provisions are in the testator's handwriting and signed by them (Mont. Code Ann. §72-2-523) — though formally executed wills are strongly preferable.
Without a will, intestacy under the Montana Uniform Probate Code (Mont. Code Ann. §72-2-111 et seq.) governs — not always the result your parent would have chosen, especially in blended-family situations.
4. Montana Transfer-on-Death Deed (Mont. Code Ann. §72-6-401 et seq.)
Montana adopted the Uniform Real Property Transfer on Death Act, allowing real estate to transfer at death outside probate when properly executed and recorded.3The deed names a beneficiary who receives title automatically upon the owner's death; the owner retains full control during life — can revoke, sell, or modify the deed.
To be effective, the deed must be:
- In writing and signed by the owner
- Notarized
- Recorded with the County Clerk and Recorder during the owner's lifetime
Ranch and farm planning — Montana's distinctive challenge
Many Montana families' largest single asset is agricultural land. Planning for ranch and farm property involves issues that an ordinary estate plan doesn't cover:
- Operational continuity. Who runs the ranch after the parent dies or becomes incapacitated? Multiple children, only one of whom is in the operation, is a common fact pattern that needs careful planning.
- Water rights. Montana water law is complex (prior-appropriation doctrine) and water rights tied to the land have significant value and require specific transfer planning.
- Co-ownership and partnership structure. Ranches owned in partnership, LLC, or family-limited-partnership structures require their own transfer planning.
- Medicaid look-back. Transferring agricultural land to children can trigger Medicaid look-back penalties (see our Montana Medicaid guide), so timing and structure matter.
Most Montana ranch families benefit from working with both an elder-law attorney and an agricultural-law attorney. Cost for a thorough ranch-planning engagement typically runs $3,000–$8,000+ depending on complexity.
No state estate tax, no state inheritance tax
Montana has neither a state estate tax nor a state inheritance tax. This leaves only the federal estate tax, which applies to estates exceeding the federal exemption (~$13.99M per individual in 2025; check current federal exemption before relying on a specific number).4 For Montana families below the federal threshold — the vast majority — estate planning is about probate avoidance, operational continuity, and incapacity planning, not tax minimization.
Montana probate
Montana adopted the Uniform Probate Code. There are several procedural paths:
- Informal probate. The personal representative manages the estate with limited court supervision. The most common path for uncontested estates.
- Formal probate. Required when the will is contested or court-ordered authority is needed.
- Small estate affidavit.Available for estates with personal property under approximately $50,000 and at least 30 days after death. Real estate generally cannot be transferred this way — but a TOD Deed (recorded during life) handles real estate without probate.
Updating an out-of-state estate plan after moving to Montana
Out-of-state wills are generally valid in Montana if they were valid where executed (Mont. Code Ann. §72-2-525) — but they're often suboptimal under Montana law. Most common issues:
- A POA from another state without Montana's explicit hot-power requirements
- An estate plan that doesn't use the Montana TOD Deed to avoid probate on the family home
- A plan that doesn't address ranch or agricultural land properly under Montana water and property law
A Montana review of an out-of-state plan typically runs $300–$600 and catches most issues. For ranch families, budget for a more substantial engagement.5
What to do this quarter
- Locate (or create) your parent's four documents: POA, Declaration of Health Care, Will, and (where applicable) Transfer-on-Death Deed.
- If documents exist but are more than five years old, have them reviewed.
- Confirm beneficiary designations on bank, retirement, and life-insurance accounts.
- For ranch and farm families, schedule a planning engagement with both an elder-law attorney and an agricultural-law attorney.
- For the Medicaid planning picture, see the Montana Medicaid guide.