Power of Attorney Basics

Aug 9, 2026

A power of attorney (POA) is a legal document that lets you name someone — your "agent" or "attorney-in-fact" — to act on your behalf. It is one of the most important, and most often neglected, pieces of a complete estate plan, because it addresses incapacity while you are alive, not distribution of assets after death.

Financial vs. Healthcare Power of Attorney

Most estate plans include two separate powers of attorney:

• A financial (or "durable") power of attorney authorizes your agent to manage financial matters — paying bills, managing investment accounts, filing taxes, handling real estate — on your behalf.
• A healthcare power of attorney (sometimes called a healthcare proxy) authorizes your agent to make medical decisions on your behalf if you are unable to communicate your own wishes.

These are often paired with a living will or advance healthcare directive, which states your own wishes about end-of-life care directly, giving your healthcare agent guidance rather than leaving every decision to their judgment alone.

"Durable" Matters

A power of attorney that is not explicitly durable typically becomes invalid the moment you become incapacitated — precisely when it would be needed most. A durable power of attorney remains in effect through incapacity, which is why estate planning documents almost always specify durability explicitly.

Springing vs. Immediate

A financial power of attorney can be drafted to take effect immediately upon signing, or as a "springing" power that only takes effect upon a determination of incapacity (often requiring one or more physician certifications). Immediate powers avoid the delay and potential dispute involved in certifying incapacity, but require full trust in your agent from day one, since they can act even while you remain fully capable yourself.

Without a Power of Attorney

If you become incapacitated without a valid power of attorney in place, your family typically cannot simply step in to manage your finances or make medical decisions. Instead, they generally must petition a court for guardianship or conservatorship — a public, often slow and costly process that gives a court ongoing oversight of decisions a power of attorney would otherwise have let a trusted person make privately and immediately.

Choosing an Agent

• Choose someone you trust completely with significant authority, since a financial agent can generally access and move your money.
• Name a successor agent in case your first choice is unavailable or unwilling when needed.
• Discuss your wishes with your chosen agent in advance, particularly for healthcare decisions, rather than leaving them to guess.
• Review and update your documents periodically, and after any major life change, since some institutions are reluctant to honor an outdated document.

A power of attorney is inexpensive relative to the protection it provides, and unlike many estate planning tools, it is relevant at every adult age — not just for people who consider themselves "old" or already retired.

Sample content for demonstration purposes — not financial advice.