Missouri POA Fiduciary Duties: What Agents Must and Cannot Do Under RSMo § 404.714

What the Law Requires of a POA Agent in Missouri

Accepting a power of attorney isn't just accepting authority — it's accepting a legal obligation. Under RSMo § 404.714, an agent acting under a Missouri durable power of attorney owes fiduciary duties to the principal. That means you must act in the principal's best interest, not your own, and a breach can expose you to personal liability.

The core duties:

Loyalty: Every decision you make with your parent's assets must benefit your parent. You cannot use their money to pay your mortgage, fund your child's tuition, or cover your own expenses — even temporarily, even if you intend to pay it back.

Care: You must manage your parent's affairs with the degree of care a prudent person would use when handling another person's property. This doesn't mean you need professional financial expertise, but it does mean you can't leave accounts unmonitored, ignore bills, or make speculative investments with your parent's savings.

Good faith accounting: You must keep detailed records of every transaction — income received, expenses paid, and how assets are held. If a sibling, the court, or Medicaid asks to see where the money went, you need receipts, bank statements, and a clear paper trail.

The Sibling Lawsuit Trap

Most POA fiduciary disputes in Missouri aren't brought by strangers. They're brought by siblings. The typical pattern:

1. One child is named as agent and moves money, sells property, or compensates themselves for caregiving
2. Another sibling learns about the transactions — often after the parent dies — and files a petition to compel accounting or a civil lawsuit alleging breach of fiduciary duty
3. The agent is forced to justify every dollar, and any transaction that can't be documented or that appears self-dealing can create personal liability

Common flash points:

• Self-compensation for caregiving: If you're the POA agent and also the primary caregiver, paying yourself from your parent's funds for caregiving services is one of the most common triggers for sibling lawsuits. Missouri law doesn't prohibit it, but use a written personal care agreement before receiving payment, with specific hours, duties, and a rate consistent with market wages for home care in your area.
• Gifting: Under RSMo § 404.710.6, an agent cannot make gifts of the principal's property unless gifting authority is explicitly written into the DPOA. If your parent's document uses a generic template that doesn't include this clause, every birthday check and holiday gift you write from their account is technically unauthorized.
• Commingling funds: Depositing your parent's Social Security check into your joint checking account — even for convenience — creates a commingling problem that makes it nearly impossible to prove you didn't use the money for personal expenses.

How to Protect Yourself

If you're serving as your parent's POA agent, these practices protect both your parent and you:

Keep separate accounts: Your parent's money should be in accounts titled in their name, with you listed as agent. Never deposit their funds into your personal accounts.

Document every transaction: Save receipts, keep a running ledger, and note the purpose of every expenditure. "Mom's electricity bill — $147.50 — June 2026" takes five seconds to write and can save you months of litigation.

Sign properly: When signing on your parent's behalf, always sign as "Parent's Name, by Your Name as Attorney-in-Fact." Never sign just your own name on documents involving your parent's assets or medical care. The correct signature format establishes that you're acting in a representative capacity, not a personal one.

Get a personal care agreement in writing: If you're providing caregiving services and plan to be compensated from your parent's assets, draft a written agreement before you start. Include specific duties, hours, and a reasonable hourly rate. This is also critical for Medicaid planning — payments that cannot be documented as fair-market-value compensation may be treated as transfers for less than fair market value during the 60-month look-back period and can trigger a penalty period.

Don't make unauthorized gifts: If the DPOA doesn't explicitly grant gifting authority under § 404.710.6, don't make gifts. If you need gifting authority for Medicaid spend-down planning or normal family obligations, consult an elder law attorney about whether the document needs to be re-executed with expanded powers while your parent still has capacity.

What Happens When an Agent Violates Their Duties

Any interested person — a sibling, the principal themselves if they regain capacity, or a court-appointed guardian — can petition the probate court to compel the agent to provide an accounting. If the accounting reveals unauthorized transactions, the court can:

• Order delivery of the principal's property and relevant records to a successor agent or legal representative
• Modify or terminate the durable power of attorney or remove the agent

Suspected financial exploitation can also trigger Missouri's adult-abuse reporting process, including the Adult Abuse and Neglect Hotline at 1-800-392-0210.

The Bottom Line

Being named POA agent is a responsibility, not a reward. The authority is broad, but the accountability is strict. Keeping clean records, maintaining separate accounts, and never mixing your parent's interests with your own are the basics — and they're what separate agents who serve well from agents who end up in court.

Our Missouri Power of Attorney & Guardianship Kit includes an agency communication log, financial inventory worksheet, and execution checklists designed around Missouri's fiduciary requirements — so you have the documentation framework before you need it.

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