Glossary/Wealth planning

Power of Attorney

Also known as POA, Financial power of attorney

A power of attorney is legal authority granted by one person to an agent to act on specified financial, property, legal, or other matters.

Editorially reviewed 2026-07-30

Why power of attorney matters

It can support continuity during absence or incapacity, while creating serious authority, abuse, and oversight risks.

How it is applied

Specify the governing jurisdiction, principal, appointed agent, scope of authority, effective date, duration, revocation process, and whether authority continues after incapacity. Coordinate the document with banks, brokers, care plans, trusts, and estate documents. Use local legal advice and choose an agent with ability, availability, and integrity.

Portfolio example

An older investor grants a daughter durable authority to pay bills and manage an investment account if capacity is lost, while requiring two agents to approve property sales. A separate health-care document may govern medical decisions. The broker reviews its own acceptance procedure before an emergency occurs.

How to interpret it

A power of attorney allows another person to act for the principal within defined limits. Ordinary authority may end on incapacity, while a durable or lasting form can continue, depending on local law. The agent generally owes duties but does not become owner of the principal’s assets.

Limitations and common misconceptions

Forms and terminology vary widely. An overly broad power creates abuse risk; an overly narrow one may be unusable. Institutions can reject stale or noncompliant documents, co-agents can disagree, and authority normally ends at death. Capacity disputes and cross-border assets add complexity. Review the appointment after relationship, residence, health, or institutional changes. Discuss preferences with the agent and maintain safeguards such as recordkeeping, reporting, or independent oversight. Online templates can miss mandatory execution rules, so educational content should never imply that one form works globally. Financial institutions should receive and review the document while the principal can resolve questions. The principal may consider successor agents, compensation, gifting authority, business interests, digital assets, and the ability to change beneficiaries, each of which can have serious consequences. Monitoring can include periodic statements to another trusted person or professional. The agent should keep the principal’s property separate and preserve records of every decision. A power of attorney does not replace a will, and the executor usually assumes responsibility only after death. Periodic confirmation that the agent remains willing and reachable prevents a dormant plan from failing at the moment it is needed. Revoked copies should be withdrawn from institutions.

Sources and further reading