If you are creating a power of attorney (POA), one of the most important questions is whether it needs to be notarized. For most financial and durable powers of attorney, the answer is yes — and even when the law does not strictly require it, banks and other institutions usually will. This article explains the notarization rules by POA type, why institutions insist on it, and how you can notarize a power of attorney online.
The general rule
A durable financial power of attorney almost always needs to be notarized to be effective, and many states also require witnesses. The reason is the stakes: a POA can give the agent broad control over money and property, so the law surrounds it with safeguards. Notarization confirms the principal signed willingly and is who they claim to be, which is exactly the assurance a bank needs before letting an agent act.
Rules by power of attorney type
Because requirements differ by state and document, the safest approach is to confirm what your state and your situation require before signing.
What a power of attorney does
A power of attorney is a document in which one person, the principal, authorizes another, the agent or attorney-in-fact, to act on their behalf. The authority can be broad or narrow and can cover financial matters, property, or healthcare decisions. Because the agent may control significant assets or make important decisions, the document is taken seriously by the law and by the institutions that rely on it — which is exactly why proper execution, including notarization, matters so much.
When a power of attorney takes effect
Timing affects notarization planning. Many powers of attorney are effective as soon as they are signed and notarized, giving the agent immediate authority. A springing power of attorney, by contrast, takes effect only when a defined event occurs, typically the principal’s incapacity certified by a physician. A durable power of attorney remains effective even after the principal becomes incapacitated, which is why it is the standard choice for long-term planning. Whichever you choose, it must be properly executed up front, because a principal who has lost capacity can no longer sign.
Why institutions require notarization
Even where a statute does not strictly demand it, the practical reality is that banks, brokerages, title companies, and government offices routinely refuse to honor a power of attorney that is not notarized. They need confidence that the principal genuinely granted the authority, and a notarized signature provides that. A POA that is not notarized is often a POA that gets rejected at the counter — so notarization is effectively essential regardless of the minimum legal requirement.
Notarization vs. witnesses
These are different safeguards, and some states require both. Notarization involves a notary verifying identity and witnessing the signature; witnessing involves disinterested individuals observing the signing. Witness requirements vary widely, which is part of why the Uniform Power of Attorney Act was created to bring more consistency, though not every state has adopted it. Check whether your POA needs witnesses in addition to a notary.
Why a durable POA is the standard
Most people who set up a power of attorney for planning purposes choose a durable one, and notarization is central to it. A durable POA stays in effect even if the principal later becomes incapacitated — precisely the moment when an agent’s authority is most needed. Because it must remain valid through incapacity, it has to be executed correctly while the principal is still competent, which almost always means notarization and, in many states, witnesses. A POA that fails on a technicality at the moment of incapacity defeats its entire purpose, so getting the execution right is essential.
Acceptance can hinge on notarization
It is worth repeating that acceptance, not just legal validity, often determines whether a POA works in practice. A financial institution may have internal policies that go beyond the statutory minimum, including requiring notarization, their own form, or a recently dated document. Because the agent will need the institution to honor the POA, it is wise to confirm the institution’s specific requirements early — ideally when the POA is created — rather than discovering a problem when the agent tries to act.
Can you notarize a power of attorney online?
In states that permit remote online notarization, a financial or durable POA can generally be notarized over a secure video session — often with a witness in the same session when one is required. Our notarize a power of attorney online page walks through the process. Healthcare directives can be an exception, with their own execution rules, so confirm the requirements for a medical POA before choosing the online route.
What you need to notarize a POA online
- A valid, unexpired government-issued photo ID.
- A device with a camera and microphone, and a stable internet connection.
- Your completed POA document, unsigned.
- Knowledge of whether your state requires witnesses for your POA type.
If a witness is required, arrange for one before the session so the appointment is not interrupted; in many cases a qualified witness can join the same online session. And as with any notarization, leave the signature blank until the notary is watching, since the principal must sign in the notary’s presence for the act to be valid.
Confirm your institution’s requirements
Before relying on a POA, check with the bank, brokerage, or agency that will act on it. Some prefer their own POA forms, and some will not honor a document older than a certain age. Confirming acceptance — and that they recognize an online notarization — before you need the POA prevents a frustrating surprise when timing matters most, such as during a medical event or a closing.
How much does it cost to notarize a POA online?
Fees are set per notarial act by the notary’s commissioning state, and platforms may add a small technology charge; a required witness may add a modest fee. For a document as consequential as a power of attorney, the cost is minor relative to the protection it provides — and notarizing online avoids the time and travel of an in-person appointment, which matters when a POA is needed during a medical situation or an approaching deadline.
Common mistakes to avoid
- Assuming a POA never needs notarization — most do, and institutions usually require it.
- Forgetting witnesses where your state requires them in addition to the notary.
- Signing before the notary session begins.
- Using a healthcare POA form with execution rules unsuitable for remote notarization.
The bottom line
In most cases, a power of attorney needs to be notarized to be effective and to be accepted by the institutions that will rely on it, and many states also require witnesses. Durable and financial POAs are the most likely to require notarization; healthcare directives often follow their own rules. Confirm your state’s requirements and your institution’s preferences, and in states that permit remote online notarization you can complete the entire process online — often with a witness in the same session — in just a few minutes.
Frequently Asked Questions
Does a power of attorney have to be notarized?
In most cases, yes. A durable or financial power of attorney generally must be notarized to be effective, and many states also require witnesses. Even where notarization is not strictly required by statute, banks and other institutions usually refuse to honor a POA that is not notarized.
Do all types of power of attorney need notarization?
Requirements vary by type and state. Durable and financial POAs are the most likely to require notarization and sometimes witnesses. Medical or healthcare POAs often emphasize witnesses and may have their own rules. Confirm what your state and document require before signing.
Can I notarize a power of attorney online?
In states that permit remote online notarization, yes. A financial or durable POA can be notarized over a secure video session, often with a witness in the same session if required. Healthcare directives may have separate execution rules, so confirm those before choosing the online route.
Why do banks require a notarized power of attorney?
Banks and other institutions need confidence that the principal genuinely granted the authority before letting an agent act on their accounts. A notarized signature provides that assurance, which is why a POA that is not notarized is often rejected even when the law does not strictly require it.
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About This Page
Written by the remoteonlinenotary.com/ team. Reviewed by a commissioned online notary public. Last updated: June 15, 2026.
Disclaimer: This article is for general information only and is not legal advice. Notarization and document requirements vary by state and document type. For guidance on a specific matter, consult a qualified attorney or title professional.
Sources (linked inline above): Uniform Power of Attorney Act (ULC) · National Notary Association