Power of Attorney vs. Advance Directive: Which Is Right for Me?

A power of attorney covers finances and legal matters, while advance directives specify healthcare preferences. For many, it makes sense to have both. 

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Updated on: February 12, 2025
Read time: 6 min

Estate planning helps ensure your wishes are followed—both during your lifetime and after. While many people first think of wills and trusts, equally important are the documents that protect your interests while you're alive, including powers of attorney and advance directives. 

Here's what you should know about each estate planning tool and why you might create one over the other—or both. 

A lawyer explaining the differences between power of attorney and advance directive.

What is a power of attorney (POA)?

A power of attorney gives someone (known as the agent or attorney-in-fact) the authority to make financial or legal decisions on behalf of another person—the principal. You can specify exactly how you want the POA to work, including when the powers take effect (if not immediately), what your agent can handle, and any conditions that terminate the powers.

Elements of a POA

While state laws and terminology may vary, these are some of the most common elements you can include in a POA. 

  • General POA: Grants broad authority to handle all financial and legal matters, from banking to real estate transactions.
  • Special or limited POA: Restricts authority to specific tasks or timeframes, such as only managing your investments or completing a single transaction.
  • Durable POA: Continues even if you become incapacitated.
  • Springing POA: Only takes effect under predetermined conditions, like incapacitation or during extended travel when you're unavailable. If the POA isn’t springing, it typically takes effect immediately after signing.

Keep in mind that these features aren't permanent—you can change or revoke your POA as your circumstances change.

What is an advance directive (AD)?

An advance directive specifies your health care or treatment preferences in the event you can't communicate them yourself. Unlike a POA, an AD doesn't necessarily need to specify an agent to act on your behalf. Instead, its primary purpose is to outline your medical wishes for doctors and practitioners. 

Components of an advance directive

An AD might include some or all of the following components, depending on your preferences. 

  • Living will: Specifies your wishes for medical treatments in end-of-life care, such as preferences for procedures or pain management. 
  • Healthcare proxy or medical POA: Names a trusted person who makes medical decisions on your behalf and communicates with healthcare providers when you can't. 

Whether you create a power of attorney, advance directive, or both, you should consider consulting an attorney or work with a reputable service like LegalZoom to confirm the document(s) meets your expectations and the state's requirements.

Power of attorney vs. advance directive: Key differences

While both legal documents help protect your interests when you can't act for yourself, they have different purposes and abilities, including the following. 

Scope of authority

A POA can give your agent broad authority to handle all financial and legal matters, such as paying bills, handling investments, or managing your business. Some states (such as Florida) even allow POAs to specify medical preferences, but this isn't always the case. 

In comparison, an AD only focuses on healthcare decisions and advance care planning. While it can have several components (such as a living will and healthcare proxy), an AD can't give anyone power over your finances or legal affairs. 

Activation timing

A POA can go into effect immediately, at a specified time, or when certain conditions are met. For example, you might give your agent temporary authority to oversee your business while you bond with a newborn. However, an AD typically only takes effect when you can't communicate your own healthcare wishes. This might be due to temporary unconsciousness, incapacity, or any serious illness that affects your ability to make decisions or express your preferences.

Decision-making authority

With a POA, your agent can act within the scope you've defined. In other words, you give them permission to essentially step into your shoes and handle the matters you specify—whether broad or narrow. 

While an AD may include a healthcare power or proxy, its primary purpose is to document your medical preferences as a contingency. Moreover, any proxy you name is generally expected to follow your stated wishes rather than make independent decisions. 

State recognition

All states recognize powers of attorneys and advance directives, but specific requirements and laws vary. Some states have standardized statutory forms, while others are more lenient in how you word or draft the documents. 

The requirements to make either document legally valid may also vary. For instance, some states require document notarization, specific witnessing procedures, or particular language or phrases to be included. 

How POA and AD work together

Medical emergencies rarely affect just your health. Bills still need to be paid, work obligations must be met, and financial decisions can't wait. In these kinds of situations, a POA can handle the practical matters while your healthcare providers follow your advance directive's instructions for treatment. 

Moreover, without clear documentation of your preferences and who you trust to make decisions, relatives might disagree or act in ways that don't honor your desires. With both a POA and AD, however, you can protect sensitive financial matters and ensure your wishes are known. 

How to establish a POA and advance directive

You can create a power of attorney and advance directive on your own or work with professionals—whether an attorney or estate planning service like LegalZoom. Here's a breakdown of the general process to create both an advance directive and a POA.  

  1. Consider your needs. Think about your medical preferences for your AD and which powers you want to grant in your POA (along with any special features). 
  2. Choose your representatives. Choose an agent or proxy who understands and respects your wishes. 
  3. Draft the documents. Following your state's laws, either use pre-approved forms or gather all the required information to create your own documents. Be sure to follow any witnessing or notarization requirements, too. 
  4. Consult legal professionals. It's highly recommended to consult a local attorney or use a reputable estate planning service like LegalZoom to ensure your POA and AD function as intended. 
  5. Store and distribute properly. Keep the original documents safe and provide copies to relevant parties (e.g., medical professionals, your healthcare facility, or family members). 
  6. Review regularly. Periodically review and update each document as circumstances change. 

These are both estate planning tools you'll want to prioritize while you're healthy and able to express your wishes. Regardless of how you create them, be sure that your chosen agent or proxy understands their responsibilities and is willing to act on your behalf if ever needed. 

FAQs

What happens if I don't have a POA or AD?

Without a POA or AD, courts may need to intervene and appoint someone (known as a guardian or conservator) to make decisions on your behalf. Keep in mind this process can be expensive, time-consuming, and may not reflect your personal preferences.

Can I use the same person as my agent for a POA and AD?

Yes, you can appoint the same person for both roles if you want them to handle financial and medical decisions. However, you should consider whether dividing these responsibilities between a financial and healthcare agent might be more manageable. 

Can a medical POA override an advance directive?

Generally no. An advance directive usually takes precedence since it contains your explicit healthcare wishes. That said, if the documents were executed at different times or contain conflicting instructions, state laws may determine which one to follow. 

Why would a physician not honor an advance directive?

According to the National Institute on Aging, a physician might not follow an advance directive if the requested treatment violates medical standards, institutional policies, or professional ethics. If so, the physician must notify the patient's healthcare proxy, update their medical record, and may need to assign them to a different medical care team.

Can a family member override a patient's wishes in their advance directive? 

No. A properly executed advance directive takes precedence over family members' preferences. Although a named medical power may have some authority, they must still honor your treatment or medical instructions outlined in a living will. 

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This article is for informational purposes. This content is not legal advice, it is the expression of the author and has not been evaluated by LegalZoom for accuracy or changes in the law.

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