Power of Attorney Explained

What Is a Power of Attorney?

A power of attorney (POA) is a legal document in which one person (called the principal) grants another person (called the agent or attorney-in-fact) the authority to act on their behalf. The agent can be authorized to make financial decisions, sign legal documents, manage property, and handle other affairs as specified in the document.

A power of attorney is a cornerstone of estate planning precisely because unexpected events — illness, accidents, or cognitive decline — can leave you unable to manage your own affairs. Without a POA in place, family members may have to go to court to obtain guardianship or conservatorship, a process that is expensive, time-consuming, and stressful during an already difficult time.

Types of Power of Attorney

There are several distinct types of POA, each serving different purposes:

• General power of attorney: Grants broad authority to the agent to handle a wide range of financial and legal matters on your behalf. This type typically becomes void if the principal becomes incapacitated, which limits its usefulness for long-term planning.
• Durable power of attorney: Like a general POA but includes language that keeps it in effect even if the principal becomes mentally incapacitated. This is the most commonly recommended type for estate planning purposes because it ensures someone can manage your affairs if you are unable to do so yourself.
• Limited (or special) power of attorney: Restricts the agent's authority to a specific task or time period. For example, you might grant a limited POA allowing someone to sell your car while you are out of the country.
• Springing power of attorney: Only becomes effective when a specific triggering event occurs, typically the incapacity of the principal as certified by a physician. While the delayed activation sounds protective, it can create logistical delays when the POA is urgently needed.
• Healthcare power of attorney: Specifically grants the agent authority to make medical decisions on your behalf if you cannot make them yourself. This is a separate document from a financial POA and is sometimes called a healthcare proxy or medical power of attorney.

What Can an Agent Do Under a Power of Attorney?

The scope of authority granted depends on how the document is drafted, but a durable financial POA can typically allow the agent to:

• Manage bank accounts and make deposits or withdrawals
• Pay bills and manage debts
• File tax returns
• Manage investments and retirement accounts
• Buy or sell real estate
• Apply for government benefits such as Social Security or Medicaid
• Manage a business

A well-drafted POA will specifically list the powers granted. Vague or overly broad documents can create problems, while documents that are too narrow may leave critical gaps.

What an Agent Cannot Do

An agent under a POA has important limitations, including:

• Cannot make decisions after the principal's death (the POA ends at death; the executor of the will takes over)
• Cannot change the principal's will or beneficiary designations (unless specifically authorized)
• Cannot act in their own self-interest at the principal's expense — agents have a fiduciary duty to act in the principal's best interest
• Cannot make gifts to themselves without explicit authorization in the document

Choosing the Right Agent

Selecting an agent is one of the most consequential decisions you will make in your estate plan. Your agent must be:

• Someone you trust completely with your finances and personal affairs
• Financially responsible and organized
• Willing and available to serve in the role
• A legal adult (18 or older in most states)

It's common to name a primary agent and a successor agent in case the primary is unable or unwilling to serve. This might be a spouse as primary and an adult child as successor, for example.

How to Create a Power of Attorney

Creating a POA typically requires:

1. Choosing the type of POA you need (durable financial and healthcare are recommended for most people)
2. Selecting your agent and successor agent
3. Drafting the document — you can use an estate planning attorney, online legal services like LegalZoom, or state-provided forms (many states provide free POA templates)
4. Signing the document in front of witnesses and/or a notary public, as required by your state's laws
5. Providing copies to your agent, financial institutions, doctors, and anyone else who may need to work with it

When Does a Power of Attorney End?

A POA can end in several ways: the principal dies, the principal revokes it in writing, the purpose of a limited POA is completed, or a court invalidates it. A durable POA survives incapacity but does not survive death. Once the principal dies, the executor of the will manages the estate, not the agent under the POA.