How to revoke a power of attorney in Idaho

What Idaho law says about revoking a power of attorney, and a free letter you can fill in and print.

Checked against official sources: October 31, 2026.

Short answer

You can revoke a power of attorney or an agent's authority. The Act does not set a required method. Signing a new power of attorney does not revoke an earlier one unless the new one says so.

Words used in Idaho

In Idaho you name an agent for money and property in a power of attorney. For health care, Idaho law calls the document an advance care planning document; it can name a health care agent and give end-of-life instructions, and the state's form calls it an Advance Directive. If an adult cannot decide and has no documents, Idaho law lists who may consent to care, and a court can appoint a guardian or conservator.

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
Health care
Advance care planning document (ACPD), which may name a 'health care agent'; the state form is called an Advance Directive (durable power of attorney for health care plus living will)
Treatment wishes
Living will (part of the Advance Directive / advance care planning document)
Court-appointed decision-maker
Guardian (personal decisions) and conservator (property) of an 'incapacitated person'; limited guardianship

What Idaho law says about revoking a power of attorney

How to revoke

You can revoke a power of attorney or an agent's authority. The Act does not set a required method. Signing a new power of attorney does not revoke an earlier one unless the new one says so.

Telling others

Tell the agent and every bank or business that has a copy. An agent or other person who acts in good faith without actual knowledge that the power of attorney or the agent's authority has ended is protected.

Law: Idaho Code § 15-12-110

Source: Official text

Free letter: revoke a power of attorney

The date on the document you signed. If you are not sure, use your best estimate.

These names go into your letter only. They are never saved or sent to us.

Other formats

Sign the letter and keep a copy. This tool does not check whether your document is valid, and it is not legal advice.

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
  • The agent dies, becomes incapacitated or resigns, or you revoke the agent's authority, and no other agent is named
  • A court appoints a conservator (including a temporary conservator) or other fiduciary for some or all of your property, unless the court orders otherwise
  • An action is filed for dissolution, annulment or legal separation from an agent who is your spouse
Banks and other businesses

A person asked to accept a notarized (acknowledged) power of attorney must accept it, or within 7 business days ask for an agent's certification, an English translation or a lawyer's opinion, and then accept it within 5 business days after receiving it, unless a legal reason to refuse applies (for example, a good-faith belief it is invalid, or a report to the local adult protective services office). A person may not demand a different form. Wrongful refusal can lead to a court order and liability for reasonable attorney's fees and costs. A photocopy or electronically sent copy has the same effect as the original.

Law: Idaho Code §§ 15-12-119, 15-12-120; § 15-12-106(4)

Law: Idaho Code §§ 15-12-108(2), 15-12-110

Good to know in Idaho

  • Since 2023, an Idaho advance care planning document needs only your name, date of birth, phone, mailing address, signature and date; witnesses and a notary are optional.

    Law: Idaho Code § 39-4510, 2023 Idaho Sess. Laws ch. 307

  • Appointing a conservator ends a power of attorney unless the court orders otherwise.

    Law: Idaho Code § 15-12-108(2)

  • Idaho runs an online Healthcare Directive Registry for advance directives and POST forms.

    Law: Idaho Code § 39-4515

  • Idaho's guardianship law is replaced by the Uniform Guardianship, Conservatorship, and Other Protective Arrangements Act on January 1, 2027.

    Law: 2026 Idaho Sess. Laws ch. 79, S1240

Changes in 2024–2026

2026 Idaho Sess. Laws ch. 79 (Senate Bill 1240, signed March 20, 2026, effective January 1, 2027) repeals Title 15, Chapter 5 and enacts the Uniform Guardianship, Conservatorship, and Other Protective Arrangements Act (including 'less restrictive alternative' and 'supported decision-making' definitions), and makes conforming amendments to Idaho Code §§ 15-12-108 and 39-4504. 2023 Idaho Sess. Laws ch. 307 created the advance care planning document (ACPD) rules.

Free help in Idaho

Report abuse or exploitation

Idaho Commission on Aging - Adult Protective Services (reports go to your local Area Agency on Aging) · 1-877-471-2777

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