Arizona Power of Attorney Explained: Financial, Medical & Mental Health POA

Arizona law recognizes three separate powers of attorney: a durable financial power of attorney, a health care (medical) power of attorney, and a mental health care power of attorney. Each one is created under its own statute, has its own signing rules, and covers a different part of your life if you cannot make decisions for yourself.

This guide explains what each document does, exactly how Arizona requires it to be signed, what happens if you do not have one, and what it costs to have all three prepared. It is general legal information about how Arizona law works, not advice about which choices are right for you.

The Three Types of Power of Attorney in Arizona

A financial power of attorney covers money and property, a health care power of attorney covers medical treatment, and a mental health care power of attorney covers psychiatric and mental health treatment. Most complete Arizona estate plans include all three, because an agent named in one document has no authority under the others.

Durable Financial Power of Attorney (A.R.S. § 14-5501)

A durable financial power of attorney lets the person you choose — your agent — manage your money and property, and it keeps working if you become incapacitated. The word “durable” matters: Arizona requires the document to contain language showing that the agent’s authority continues if you later become disabled or incapacitated. Without that language, the power could stop at exactly the moment your family needs it.

Arizona sets strict signing rules for financial powers of attorney. The document must be signed by you, witnessed by one adult who is not the agent, the agent’s spouse, the agent’s children or the notary, and acknowledged before a notary public. A financial power of attorney that skips either the witness or the notary does not meet the statute. Because a notary is always part of the signing, you will also place your right thumbprint in the notary's journal under the rule that took effect September 12, 2026. An agent can typically handle banking, pay bills, manage real estate and deal with government agencies, within the powers the document grants.

A power of attorney does not control what happens after death. At that point your will or living trust governs your estate.

Health Care (Medical) Power of Attorney (A.R.S. § 36-3221)

A health care power of attorney names an adult to make medical decisions for you when you cannot make them yourself. Arizona requires the document to be dated and signed by you and either notarized or witnessed by at least one adult who affirms you appeared to be of sound mind and free from duress.

• The notary or witness cannot be your health care agent or anyone directly involved in providing your health care.
• If you use only one witness, that person cannot be related to you by blood, marriage or adoption and cannot be entitled to any part of your estate.
• If you are physically unable to sign, the witness or notary must confirm you directly indicated the document expresses your wishes.

A health care power of attorney is often paired with a living will, which states your wishes about end-of-life treatment, and a HIPAA authorization, which allows doctors to share medical information with the people you name. Dynasty’s trust package includes a Declaration of Living Will and a HIPAA Privacy Authorization alongside the medical power of attorney.

Mental Health Care Power of Attorney (A.R.S. §§ 36-3281, 36-3282)

A mental health care power of attorney names an agent to make mental health treatment decisions if you become incapable of making them. Arizona treats this as a separate document from the medical power of attorney. Under A.R.S. § 36-3281, you are considered “incapable” only after an evaluation by a licensed physician who specializes in psychiatry or neurology, or by a licensed psychologist, finds you cannot give informed consent.

The execution rules in A.R.S. § 36-3282 mirror the medical power of attorney: you must sign while you are not incapable, and the document must be notarized or witnessed by at least one qualifying adult. If you want to give your agent authority to admit you to an inpatient psychiatric facility, each paragraph granting that authority must be separately initialed by you. The agent cannot be a provider directly involved in your care when you sign.

New 2026 Rule: Thumbprint Required When a Power of Attorney Is Notarized

Starting September 12, 2026, an Arizona notary must have you place your right thumbprint in the notary's journal before notarizing a power of attorney. Senate Bill 1479 added this requirement to A.R.S. § 41-254(C) as part of a broader law aimed at deed and title fraud. The same rule covers deeds, quitclaim deeds, deeds of trust and other documents that affect real property.

• If your right thumb is not available, the notary uses your left thumb or any available finger and notes that in the journal.
• If you are physically unable to give any print, the notary records that in the journal along with an explanation of the physical condition.
• Remote online notarization is exempt when the notary records your identification credential number in the journal and keeps the audiovisual recording for at least seven years.
• Foreclosure trustee's deeds and deeds of release and reconveyance are also exempt.

The law did not make notarization mandatory for every power of attorney. A durable financial power of attorney already had to be notarized, so it now always involves a thumbprint. A health care or mental health care power of attorney can still be signed before one qualifying witness instead of a notary under A.R.S. §§ 36-3221 and 36-3282. The thumbprint applies only when a notary is used.

The rule changes how a notary records a notarization. Nothing in Senate Bill 1479 requires people to re-sign powers of attorney that were notarized before September 12, 2026. It also matters for trust clients: the Warranty Deed that moves your house into your trust affects real property, so it now requires a thumbprint too.

What Happens If You Do Not Have a Power of Attorney?

If you become incapacitated without powers of attorney, your family may need to petition the Superior Court to appoint a guardian or a conservator before anyone can act for you. A guardian makes personal and health care decisions, and a conservator manages money and property. Both are court proceedings with filings, hearings and ongoing court oversight, which take time and cost more than preparing powers of attorney in advance.

• Guardianship — personal, medical and living decisions for an incapacitated adult (A.R.S. § 14-5303 sets the court procedure). Dynasty prepares guardianship documents.
• Conservatorship — control of finances and property for a protected person. Dynasty prepares conservatorship documents.

Powers of attorney signed while you have capacity let the people you trust act without asking a judge first.

How Much Does a Power of Attorney Cost in Arizona?

At Dynasty Legal Documents, all three Arizona powers of attorney are included in the Revocable Living Trust package: $1,200 for a single trust or $1,500 for a couple. The package is delivered as a complete Trust Binder, so the powers of attorney are prepared together with the rest of your estate plan instead of as separate one-off forms.

Every Dynasty trust package includes the following documents:

• Revocable Living Trust
• Certificate of Trust
• Pour-Over Will
• Durable Financial Power of Attorney
• Medical Power of Attorney
• Mental Power of Attorney
• Declaration of Living Will
• HIPAA Privacy Authorization
• Warranty Deed to put your House into Trust
• Separate Writing Pages-Trust and Will
• Letters to Institutions
• Administration Memorandum
• Trust Schedule
• Assignment of Chattels
• Funding Letter
• Instruction for use of Personal Property Memorandum
• Letter of Last Instructions

Read more about the trust package on our Arizona living trust page, see how much a living trust costs in Arizona, or visit our Arizona power of attorney page.

Out-of-State Documents and the Arizona Health Care Directives Registry

A health care directive signed in another state is valid in Arizona if it was valid where and when it was signed, under A.R.S. § 36-3208. That matters in the East Valley, where many retirees and seasonal residents bring documents from their home state. That statute covers health care directives only, not financial powers of attorney, so many people moving to Arizona choose to sign an Arizona durable financial power of attorney that meets A.R.S. § 14-5501.

Arizona also offers a statewide registry for health care directives. The registry that the Arizona Secretary of State used to run has moved to AzHDR, Arizona’s health information exchange, where you can register advance directives such as a health care power of attorney so providers can find them.

Frequently Asked Questions

Does a power of attorney need to be notarized in Arizona?

It depends on the type. A durable financial power of attorney must be witnessed by one qualifying adult and notarized under A.R.S. § 14-5501. A health care power of attorney or a mental health care power of attorney must be either notarized or witnessed by one qualifying adult under A.R.S. §§ 36-3221 and 36-3282. Since September 12, 2026, whenever a power of attorney is notarized, the notary must also take the signer's right thumbprint in the notary journal.

Do I have to give a fingerprint to notarize a power of attorney in Arizona?

Yes, for notarizations on or after September 12, 2026. A.R.S. § 41-254(C), added by Senate Bill 1479, requires the notary to have you place your right thumbprint in the notary's journal for any power of attorney or deed. If your right thumb is unavailable, another finger is used; if you cannot give a print, the notary notes the physical condition. Remote online notarizations are exempt when the notary records your ID number and keeps the video for seven years.

How much does it cost to get a power of attorney in Arizona?

Dynasty Legal Documents includes a durable financial, medical and mental power of attorney in every Revocable Living Trust package, which costs $1,200 for a single trust or $1,500 for a couple. Powers of attorney prepared on their own are quoted individually; call 602.892.2218 for pricing.

What is the difference between a power of attorney and a health care power of attorney?

A durable financial power of attorney lets your agent handle money and property, such as bank accounts, bills and real estate. A health care power of attorney lets your agent make medical treatment decisions when you cannot. Arizona treats them as separate documents with different signing rules, and a mental health care power of attorney is a third, separate document.

Does Arizona recognize a power of attorney from another state?

Under A.R.S. § 36-3208, a health care directive signed in another state is valid in Arizona if it was valid where and when it was signed. That statute does not cover financial powers of attorney, so many people who move to Arizona sign a new durable financial power of attorney that meets A.R.S. § 14-5501.

Can you get a power of attorney for someone with mental illness in Arizona?

A person can sign a power of attorney only while they have the capacity to understand it; a mental health care power of attorney must be signed while the person is not incapable (A.R.S. § 36-3282). If someone has already lost capacity and has no power of attorney, family members generally must ask the court to appoint a guardian or conservator.

Who can be a witness to a power of attorney in Arizona?

For a financial power of attorney, the witness cannot be the agent, the agent's spouse, the agent's children or the notary. For health care and mental health care powers of attorney, the witness or notary cannot be the agent or a provider directly involved in your care, and a sole witness cannot be related to you or entitled to any part of your estate.

Does a power of attorney end when the person dies?

A power of attorney governs decisions during your lifetime. After death, your will or living trust controls how your property is handled, and a personal representative or successor trustee takes over.

Arizona Resources

• A.R.S. § 14-5501 — Durable power of attorney; creation; validity
• A.R.S. § 36-3221 — Health care power of attorney
• A.R.S. § 36-3281 — Mental health care power of attorney
• A.R.S. § 36-3282 — Mental health care power of attorney; execution
• A.R.S. § 36-3208 — Health care directives from other states
• A.R.S. § 41-254 — Notary personal appearance and thumbprint requirement
• Senate Bill 1479 (2026) — bill text
• Arizona Judicial Branch — Powers of Attorney forms and information
• AzHDR — Register advance directives

Arizona Supreme Court Certified — CLDP #81830 & #81440