Power of Attorney Agent Duties in Washington State

Being named as an agent under a Washington power of attorney isn't an honor — it's a legal obligation. The moment you accept the role, you take on fiduciary duties that Washington law enforces with real consequences. An agent who doesn't understand these duties risks personal liability, court-ordered damages, and potential criminal charges for financial exploitation.

Here's what the law actually requires of you.

Core Fiduciary Duties Under RCW 11.125.140

Washington's Uniform Power of Attorney Act imposes five fundamental duties on every agent:

Act in good faith. Every decision must be made honestly, without deception, and with genuine concern for the principal's welfare. You cannot use your authority to benefit yourself at the principal's expense.

Act with care, competence, and diligence. This doesn't mean you need professional financial expertise, but you must exercise the same level of care that a reasonably prudent person would apply to managing their own affairs. Ignoring bills, missing deadlines, or making careless financial decisions can create liability.

Act loyally for the principal's sole benefit. The principal's interests come first — always. You cannot use the principal's funds for your own benefit, even if you intend to repay them later. Self-dealing is a breach of fiduciary duty regardless of your intentions.

Avoid conflicts of interest. You cannot enter into transactions where your personal interests conflict with the principal's. Buying the principal's property from yourself (even at fair market value), lending the principal's money to your own business, or paying yourself above-market compensation are all conflicts.

Keep detailed records. You must maintain a contemporaneous record of all receipts, disbursements, and transactions made on the principal's behalf. "Contemporaneous" means at the time of the transaction — not reconstructed from memory months later when someone asks questions.

Record-Keeping: The Most Underestimated Duty

Most new agents understand they shouldn't steal. What they underestimate is the record-keeping requirement. Washington law requires detailed documentation of every financial action you take as agent:

• Bank deposits and withdrawals with dates and amounts
• Bills paid, to whom, and from which account
• Investment transactions with supporting documentation
• Property management expenses and income
• Any gifts made (if authorized by hot powers) with recipient names and amounts

The importance of records becomes clear when a family member questions your management, or when the court requests an accounting under RCW 11.125.160. Without contemporaneous records, you cannot defend your actions — and the legal presumption shifts against you.

Keep the principal's finances completely separate from your own. Maintain a dedicated filing system. Use the principal's bank accounts exclusively for the principal's expenses. Never commingle funds.

Cooperating With Healthcare Agents

Under RCW 11.125.140, a financial agent must cooperate with any individual who holds separate authority to make healthcare decisions for the principal. In practice, this means coordinating with the person named in the principal's Durable Power of Attorney for Health Care (DPAHC).

If the healthcare agent decides the principal needs in-home care or a move to assisted living, the financial agent must facilitate payment. If the healthcare agent needs access to medical insurance or Medicare documentation, the financial agent should provide it. Turf wars between financial and healthcare agents leave the principal caught in the middle.

Agent Compensation

Under RCW 11.125.120, agents are entitled to:

• Reimbursement for reasonable expenses incurred on the principal's behalf (mileage, postage, filing fees)
• Reasonable compensation for their time and services, unless the POA document explicitly says otherwise

What counts as "reasonable" isn't defined by statute — it depends on the complexity of the work, the time involved, and prevailing rates for similar services. Family members serving as agents often don't charge anything. Professional agents or those managing complex estates typically charge hourly rates comparable to bookkeepers or financial managers.

If you plan to compensate yourself, document the time spent, the tasks performed, and the rate charged. Unexplained or excessive compensation is a red flag in any accounting review.

Liability for Breach

An agent who violates their fiduciary duties faces several forms of accountability:

• Court-ordered accounting and removal — interested parties can petition under RCW 11.125.160 to force an accounting, restrict authority, or terminate the agent entirely
• Actual damages — the agent may be ordered to repay losses caused by their breach, plus the principal's attorney's fees and court costs
• Criminal prosecution — if the breach rises to financial exploitation under the Vulnerable Adults Act (RCW 74.34), criminal charges are possible

The standard isn't perfection — it's the care a reasonable person would exercise. Honest mistakes made in good faith while trying to serve the principal's interests are generally defensible. Carelessness, self-dealing, and neglect are not.

Resources for New Agents

The Washington Power of Attorney Kit includes an Agent Instruction Guide that breaks down each fiduciary duty into practical steps, with record-keeping templates, compensation documentation forms, and a checklist for the first 30 days after accepting the role.

See more Washington guides →