What Are the Responsibilities of a POA Agent?

Being named someone's agent under a power of attorney is a serious act of trust, and it comes with real legal duties that most people never fully appreciate until they are already serving. The Law Office of Chad Foster helps Snohomish County clients with power-of-attorney planning.

What a POA Agent Actually Is

When a person, called the principal, signs a power of attorney, they hand another person the legal ability to act on their behalf. That other person is the agent, sometimes called the attorney-in-fact. The agent might pay bills, manage bank accounts, handle real estate, or make decisions about the principal's property and finances. It sounds like a simple favor, but in Washington the agent steps into a role the law treats with a great deal of gravity. An agent is a fiduciary, which is the highest standard of responsibility the law imposes on someone acting for another person.

The confusion many families run into is assuming the role is casual because the person named is a spouse, an adult child, or a close friend. The relationship is personal, but the duties are not informal. Washington's Uniform Power of Attorney Act, found at chapter 11.125 RCW, spells out exactly what an agent must do once they accept the appointment. For related guidance, see What Happens If My POA Agent Becomes Incapacitated.

The Core Duties Every Agent Owes

Once an agent accepts the role, RCW 11.125.140 sets out the baseline responsibilities that apply no matter what the document says. The agent must act in accordance with the principal's reasonable expectations to the extent the agent actually knows them, and otherwise in the principal's best interest. The agent must act in good faith. And the agent must act only within the scope of the authority the power of attorney actually grants. That last point matters more than people expect. An agent who takes actions the document never authorized is stepping outside the law, even if the agent believes the action was helpful. For related guidance, see Can a Guardian Delegate Responsibilities.

Beyond those baseline duties, the same statute layers on additional obligations that apply unless the power of attorney specifically says otherwise. The agent must act loyally, purely for the principal's benefit rather than the agent's own. The agent must avoid creating a conflict of interest that would impair the agent's ability to act impartially for the principal. The agent must act with the care, competence, and diligence that agents in similar situations ordinarily use. And, importantly, the agent must keep a record of all receipts, disbursements, and transactions made on the principal's behalf. That recordkeeping duty is not busywork. It is the paper trail that proves the agent handled the principal's money honestly.

The statute also asks the agent to try to preserve the principal's estate plan when doing so is consistent with the principal's best interest. If the principal set up a plan for how their property should pass at death, the agent should not casually undo it while managing day-to-day affairs.

The Fiduciary Standard and What It Demands

Calling the agent a fiduciary is not a formality. It means the agent must always put the principal's interests ahead of their own. An agent cannot treat the principal's bank account as a personal line of credit, cannot make gifts to themselves unless the document clearly allows it, and cannot use the principal's assets to benefit the agent's family at the principal's expense. Washington law does recognize that an agent who acts with care, competence, and diligence for the principal's benefit is not automatically liable simply because the agent happens to also benefit from an action or holds a conflicting interest, but that protection assumes the agent was genuinely acting for the principal in the first place.

The fiduciary standard is why the recordkeeping duty carries so much weight. If a family member later questions how the principal's money was spent, clean records answer the question. Missing or vague records raise it.

Accountability and Who Can Ask Questions

Agents sometimes assume they answer to no one because the principal chose them. That is not how the law works. Under RCW 11.125.140, an agent generally must disclose receipts, disbursements, and transactions when requested in writing by the principal, a guardian or conservator, another fiduciary acting for the principal, a governmental agency with authority to protect the principal's welfare, or, after the principal dies, the personal representative or successor in interest of the estate. A court can also order the agent to account. When a proper request comes in, the agent generally has thirty days to comply or to explain in writing why more time is needed, and then an additional thirty days to finish.

This accountability is a feature, not a threat. It protects vulnerable principals from being taken advantage of, and it protects honest agents by giving them a clear way to show they did the job right.

A Snohomish County Perspective

In Snohomish County, we frequently see powers of attorney become active during a family crisis, often when an aging parent's health declines and an adult child steps in to manage finances. These situations tend to overlap with family law and estate matters, especially when siblings disagree about how a parent's care and money are being handled. An agent who understands the duties in chapter 11.125 RCW from the start, and who keeps careful records, is far better positioned when questions arise than one who treated the role loosely. Understanding the responsibilities before acting is one of the best ways to protect both the principal and yourself.

Moving Forward With Confidence

Serving as an agent under a power of attorney is an honor and a legal obligation at the same time. The duties of good faith, loyalty, careful management, and honest recordkeeping are not optional, and the accountability built into Washington law exists to keep everyone protected. If you have been named as an agent, or you are deciding who should serve as yours, understanding these responsibilities up front prevents painful surprises later. The Law Office of Chad Foster helps individuals and families across Snohomish County set up powers of attorney and understand the duties that come with them, and we welcome the chance to talk through your situation.

This article is for general informational purposes only and does not constitute legal advice. For guidance on your specific circumstances, please consult a qualified attorney.