Power of attorney, health care directive and guardianship in Montana
In Montana, the money document is called “power of attorney” and the health care document is called “durable health care power of attorney”. Signing: power of attorney — signed by you; the law requires no notary or witnesses; durable health care power of attorney — signed in front of two witnesses (no notary).
Checked against official sources: October 31, 2026. · Free signing checklist and letters ↓
Words used in Montana
In Montana you name an agent for money and property in a power of attorney. For health care, you can sign a durable health care power of attorney and a living will declaration, which can name someone to decide about life-sustaining treatment. If an adult cannot manage and less restrictive options will not work, a district court can appoint a full or limited guardian.
An agent (also called an attorney-in-fact) is the person you choose to act for you. You are the principal.
- Money and property
- Power of attorney; statutory form power of attorney
- The person you choose
- Agent (attorney-in-fact)
- Health care
- Durable health care power of attorney
- Treatment wishes
- Declaration relating to use of life-sustaining treatment (Montana Rights of the Terminally Ill Act), which may appoint a designee
- Court-appointed decision-maker
- Guardian of an incapacitated person (full or limited guardian; temporary guardian); conservator for property under protective proceedings
Financial power of attorney in Montana
Law and official form
- Law
- Uniform Power of Attorney Act
- Uniform Power of Attorney Act
- Yes (effective October 1, 2011)
- Official form
- Statutory Form Power of Attorney (MCA 72-31-353)Published by Montana Legislature; the Montana Judicial Branch end-of-life/guardianship forms pages link to it
You do not have to use it.
You do not have to use this form. It includes a notary acknowledgment block and an 'Important information for agent' section. It does not cover health care decisions.
Law: MCA 72-31-301 et seq. (Ch. 109, L. 2011); MCA 72-31-306(1); MCA 72-31-353
Signing rules
- How to sign
You must sign the power of attorney (or have someone sign for you in your presence at your direction). The Act does not require a notary or witnesses, but a signature acknowledged before a notary is presumed genuine, and the rules requiring businesses to accept a power of attorney apply to acknowledged ones.
- Who signs
Signed by you, or by another person who signs your name in your conscious presence at your direction.
- Notary
- Not required
- Witnesses
- None required
- Agent's acknowledgment
No separate acceptance form is required; an agent accepts by acting or by other conduct showing acceptance.
Law: MCA 72-31-318
- Electronic signing
A power of attorney can be an electronic 'record', and 'sign' includes an electronic signature.
Law: MCA 72-31-302
Law: MCA 72-31-305, 72-31-324, 72-31-325
Durable and springing
- Is it durable?
A power of attorney is durable unless it expressly says it ends when you become incapacitated.
Law: MCA 72-31-304
- Durable unless it says otherwise?
- Yes: it continues if you lose capacity unless it says otherwise.
- Starting later (springing)
It can start on a future date or event. If it starts on your incapacity and you named no one to decide, it starts when a physician determines in writing that you are incapacitated (or an attorney, judge or appropriate government official, if you are missing or outside the U.S.).
Law: MCA 72-31-309
What an agent can and cannot do
- Needs express permission
- Create, amend, revoke or terminate an inter vivos trust
- Make a gift
- Create or change rights of survivorship
- Create or change a beneficiary designation
- Delegate authority granted under the power of attorney
- Waive your right to be a beneficiary of a joint and survivor annuity, including a survivor benefit under a retirement plan
- Exercise fiduciary powers that you have authority to delegate
- Disclaim property, including a power of appointment
- Unless the document says otherwise, an agent who is not your ancestor, spouse or descendant may not use these powers to create an interest in your property for the agent or someone the agent must support
Law: MCA 72-31-336
Agent duties, pay and court review
- Agent duties
- Act in line with your reasonable expectations as far as the agent knows them, and otherwise in your best interest
- Act in good faith
- Act only within the authority the document gives
- Act loyally for your benefit and avoid conflicts of interest
- Act with care, competence and diligence
- Keep a record of all receipts, payments and transactions
- Cooperate with your health care decision-maker
- Try to preserve your estate plan if the agent knows it and it is in your best interest
- On request of you, a guardian, conservator, protective agency or (after death) your personal representative, disclose receipts and payments within 30 days
- Agent pay
Unless the power of attorney says otherwise, the agent is entitled to reimbursement of reasonable expenses and to compensation that is reasonable under the circumstances.
Law: MCA 72-31-317
- Asking a court to review an agent
You, your agent, a guardian or conservator, your health care decision-maker, your spouse, parent or descendant, a presumptive heir, a beneficiary, a government agency that protects your welfare, your caregiver or another interested person, or a person asked to accept the power of attorney may petition a court to construe it or review the agent's conduct.
Law: MCA 72-31-321
Law: MCA 72-31-319
When it ends and how to revoke it
- It ends when
- You die
- You become incapacitated, if the power of attorney is not durable
- You revoke it
- It says it ends, or its purpose is accomplished
- You revoke the agent's authority, or the agent dies, becomes incapacitated or resigns, and no other agent is named
- For the agent's authority: an action is filed to dissolve or annul the agent's marriage to you, or for legal separation, unless the document says otherwise
- Divorce ends a spouse's authority
- Yes · Divorce rules in Montana (Divorce Law Map)
- How to revoke
You can revoke the power of attorney or your agent's authority. The Act does not set a required method of revocation.
- Telling others
A revocation does not affect an agent or another person who, without actual knowledge of it, acts in good faith under the power of attorney. A new power of attorney does not revoke an earlier one unless it says so.
Law: MCA 72-31-310
Banks, other states and real estate
- Banks and other businesses
A person asked to accept an acknowledged power of attorney must accept it, or ask for an agent's certification, translation or lawyer's opinion, within 7 business days, and must then accept it within 5 business days after receiving it. They may not demand a different form. Exceptions include good-faith doubts and reports of suspected abuse to the Department of Public Health and Human Services. A person who wrongly refuses can be ordered to accept it and made to pay reasonable attorney fees and costs.
Law: MCA 72-31-324, 72-31-325
- Signed in another state
A power of attorney signed in another state is valid in Montana if its execution complied with the law of the place that governs it or with the federal military power of attorney rules. A photocopy or electronically sent copy has the same effect as the original.
Law: MCA 72-31-306
Health care directive in Montana
The document and its form
- Document
- Declaration (living will) under the Montana Rights of the Terminally Ill Act; durable health care power of attorney
- Official form
- Declaration forms (MCA 50-9-103(2) instructions to physician; 50-9-103(3) appointing a designee)Published by Montana Legislature (forms printed in the statute); Montana DPHHS also publishes Declaration of Living Will formsVersion: Statutory text last amended 2009
You do not have to use it.
- Living will
Declaration relating to use of life-sustaining treatment
The living will is a separate document.
An adult of sound mind can sign a declaration directing that life-sustaining treatment be withheld or withdrawn if they are in a terminal condition and cannot decide, and can name a designee to make those decisions. A health care power of attorney or court appointment that expressly authorizes life-sustaining treatment decisions also counts as a declaration naming someone to act for you.
Law: MCA 50-9-103; MCA 50-9-103, 50-9-105
Signing rules
- How to sign
A living will declaration must be signed by you (or someone at your direction) and witnessed by two individuals; a notary is not required. Montana's health care power of attorney statute requires only that you name your agent in writing; it sets no witness or notary requirement. A health care power of attorney keeps working if you become incapacitated only if it contains words showing that intent, such as 'This health care power of attorney is not affected by subsequent disability or incapacity of the principal or lapse of time'.
Law: MCA 50-9-103; MCA 72-5-501
- Who signs
The declaration must be signed by you or by another person at your direction.
- Notary
- Not required
- Witnesses
- 2
Law: MCA 50-9-103, 72-5-501
Who can be your agent and what the agent can do
- When the agent starts
A declaration becomes operative when it is given to your attending physician or APRN and you are determined to be in a terminal condition and no longer able to make decisions about life-sustaining treatment. A durable health care power of attorney can say it is not affected by later incapacity, or that it becomes effective on your incapacity.
Law: MCA 50-9-105; MCA 72-5-501
Revoking and conflicting documents
- Revoking your agent
Montana's health care power of attorney statute does not set a method for revoking it. A person who acts in good faith without actual knowledge of a revocation is protected, and an affidavit from the agent can prove that. If a guardian is appointed for you, the guardian has the same power to revoke or amend the health care power of attorney that you would have.
Law: MCA 72-5-501(2), 72-5-502
- Revoking your instructions
You can revoke a declaration at any time and in any manner, whatever your mental or physical condition. It is effective when communicated to your attending physician, APRN or other provider by you or a witness to the revocation.
Law: MCA 50-9-104
- Telling others
The provider must make the revocation part of your medical record; a provider or EMS worker who witnesses a revocation must tell the attending physician or APRN.
Law: MCA 50-9-104
Law: MCA 50-9-104, 72-5-501, 72-5-502
If you have no directive
- Who decides without a directive
Montana's statute is narrow: if you are in a terminal condition, cannot decide and have no declaration, these relatives in this order may give written consent, witnessed by two people, to withhold or withdraw life-sustaining treatment. A full guardian may also consent. An equal split in a class does not pass the decision to the next class, and a consent that conflicts with your expressed wishes is not valid. It cannot be used to withhold treatment from a pregnant patient if the fetus could probably develop to live birth.
- Spouse
- An adult child (if more than one, a majority of those reasonably available)
- Parents
- An adult sibling (if more than one, a majority of those reasonably available)
- The nearest other adult relative by blood or adoption who is reasonably available
Law: MCA 50-9-106
Other states, registry and medical orders
- Signed in another state
A declaration signed in another state in a manner substantially similar to Montana's rules and valid under that state's law is effective in Montana.
Law: MCA 50-9-111
- Registry
Health Care Declaration Registry (Montana Attorney General)
Law: MCA 50-9-501 to 50-9-505
Guardianship and conservatorship in Montana
What guardianship or conservatorship is
- What it is called
Full guardian, limited guardian, temporary guardian (of an incapacitated person); conservator for property under protective proceedings
- When a court may appoint one
The court may appoint a guardian only if it is satisfied that the person is incapacitated, that their identified needs cannot be met by a less restrictive alternative, and that court intervention is necessary to meet essential requirements for physical health or safety. If managing money would be enough, the court treats the case as a protective (conservatorship) proceeding. A 'less restrictive alternative' includes supported decision-making, appropriate technological assistance and a representative payee.
Law: MCA 72-5-305, 72-5-306, 72-5-316
- Kinds
- Full guardian
- Limited guardian (only the powers listed in the order)
- Temporary guardian (up to 6 months)
- Conservator or protective order for property
Law: MCA 72-5-305, 72-5-306, 72-5-312, 72-5-315, 72-5-316, 72-5-317; MCA 25-1-201
Who can ask, which court and your own choice
- Who may ask
The allegedly incapacitated person or any person interested in their welfare, including the county attorney.
Law: MCA 72-5-315(1)
- Court
Montana district court.
- Choosing your own
You can nominate a guardian or conservator in a power of attorney; the court follows your most recent nomination except for good cause or disqualification. You can nominate a guardian of the person in a durable health care power of attorney. A person you nominated has first priority if you had capacity to make a reasonably intelligent choice.
Law: MCA 72-31-308; MCA 72-5-501; MCA 72-5-312
- Effect on a power of attorney
If a conservator or guardian of your estate is appointed, your financial power of attorney continues and the agent is accountable to that fiduciary as well as to you, unless the court limits, suspends or terminates it. A guardian of your person can revoke or amend your health care power of attorney as you could.
Law: MCA 72-31-308; MCA 72-5-501
Cost, fee waiver and forms
- Filing fee
$70 clerk of district court fee to file a petition for the appointment of a guardian or conservator.
Law: MCA 25-1-201(1)(m)
- Fee waiver
Statement of Inability to Pay Court Costs and Fees.
Source: Montana Judicial Branch form
- Forms
- Steps
Other options and where to report abuse
- Supported decision-making
Montana has no supported decision-making law.
- Less restrictive options
- Supported decisionmaking: People the person chooses help them understand and communicate their own decisions.
- Appropriate technological assistance: Tools and technology that help the person manage on their own.
- Representative payee: A payee manages government benefit payments.
- Powers of attorney and health care declarations: Documents the person signs while able, naming who acts for them.
- Report abuse or exploitation
Montana DPHHS Adult Protective Services · 1-844-277-9300
Call or text the Eldercare Locator to find your local adult protective services: 1-800-677-1116 · eldercare.acl.gov
Law: MCA 72-5-305(3), (5); MCA 72-5-316
Free tools for Montana
These tools use only the rules on this page. They do not prepare your document and do not check whether it is valid.
Signing checklist
The signing steps in Montana law for your financial power of attorney, health care directive, or both.
Letter to revoke a power of attorney
A free letter to your agent, with copies to banks and businesses. Made in your browser.
Notice to revoke or change a health care directive
A free notice to your doctor, with copies to your agent and facility.
Official forms in Montana
Forms published by the state or its courts. You open them on the official site.
Financial power of attorney
- Statutory Form Power of Attorney (MCA 72-31-353) · Published by Montana Legislature; the Montana Judicial Branch end-of-life/guardianship forms pages link to it
Health care directive
- Declaration forms (MCA 50-9-103(2) instructions to physician; 50-9-103(3) appointing a designee) · Published by Montana Legislature (forms printed in the statute); Montana DPHHS also publishes Declaration of Living Will forms · Version: Statutory text last amended 2009
Living will
Guardianship / conservatorship
Free help in Montana
- MontanaLawHelp.org (Montana Legal Services Association)
- Montana DPHHS Aging Services - Legal Services
- Montana Judicial Branch: Guardianship & Conservatorship forms
- Montana Judicial Branch: End of life / probate forms
National help
- Legal Services Corporation (LSC) - Find legal aid
- LawHelp.org
- Eldercare Locator (Area Agencies on Aging) · 1-800-677-1116
- CFPB guides for financial caregivers
Report abuse or exploitation
Montana DPHHS Adult Protective Services · 1-844-277-9300
Call or text the Eldercare Locator to find your local adult protective services: 1-800-677-1116 · eldercare.acl.gov
Good to know in Montana
- Montana's living will (declaration) needs two witnesses and no notary, and can name a designee to decide about life-sustaining treatment.
Law: MCA 50-9-103
- Since 2021, a Montana court may appoint a guardian only if the person's needs cannot be met by a less restrictive alternative such as supported decisionmaking, technology or a representative payee.
Law: MCA 72-5-305, 72-5-316
- The statutory fee to file a guardianship or conservatorship petition is $70.
Law: MCA 25-1-201(1)(m)
- Living will declarations can be filed with the Attorney General's Health Care Declaration Registry; not filing does not affect validity.
Law: MCA 50-9-502
Questions about powers of attorney in Montana
What is a power of attorney called in Montana?
Power of attorney; statutory form power of attorney. In Montana you name an agent for money and property in a power of attorney. For health care, you can sign a durable health care power of attorney and a living will declaration, which can name someone to decide about life-sustaining treatment. If an adult cannot manage and less restrictive options will not work, a district court can appoint a full or limited guardian.
Does a power of attorney have to be notarized in Montana?
You must sign the power of attorney (or have someone sign for you in your presence at your direction). The Act does not require a notary or witnesses, but a signature acknowledged before a notary is presumed genuine, and the rules requiring businesses to accept a power of attorney apply to acknowledged ones.
Is a power of attorney durable in Montana?
A power of attorney is durable unless it expressly says it ends when you become incapacitated.
Is there an official power of attorney form in Montana?
Statutory Form Power of Attorney. You do not have to use it.
How do I revoke a power of attorney in Montana?
You can revoke the power of attorney or your agent's authority. The Act does not set a required method of revocation.
What can an agent not do without express permission in Montana?
Create, amend, revoke or terminate an inter vivos trust; Make a gift; Create or change rights of survivorship; Create or change a beneficiary designation; Delegate authority granted under the power of attorney; Waive your right to be a beneficiary of a joint and survivor annuity, including a survivor benefit under a retirement plan; Exercise fiduciary powers that you have authority to delegate; Disclaim property, including a power of appointment; Unless the document says otherwise, an agent who is not your ancestor, spouse or descendant may not use these powers to create an interest in your property for the agent or someone the agent must support.
How do I sign a health care directive in Montana?
A living will declaration must be signed by you (or someone at your direction) and witnessed by two individuals; a notary is not required. Montana's health care power of attorney statute requires only that you name your agent in writing; it sets no witness or notary requirement.
Who decides my health care if I have no directive in Montana?
Montana's statute is narrow: if you are in a terminal condition, cannot decide and have no declaration, these relatives in this order may give written consent, witnessed by two people, to withhold or withdraw life-sustaining treatment.
How does guardianship or conservatorship work in Montana?
The court may appoint a guardian only if it is satisfied that the person is incapacitated, that their identified needs cannot be met by a less restrictive alternative, and that court intervention is necessary to meet essential requirements for physical health or safety.
What does a guardianship or conservatorship cost in Montana?
$70 clerk of district court fee to file a petition for the appointment of a guardian or conservator.
What are the alternatives to guardianship in Montana?
Supported decisionmaking; Appropriate technological assistance; Representative payee; Powers of attorney and health care declarations.