Fiduciary Duty as Power of Attorney for an Elderly Parent

You Accepted the Role — Now What Does It Require

Being named as agent under your parent's power of attorney is a legal role with legal obligations. The document gives you authority to manage your parent's financial and legal affairs. But that authority comes with a fiduciary duty — the highest standard of care the law imposes on one person acting on behalf of another.

Most families accept the role without fully understanding what it demands. Mistakes made out of good intentions — using your parent's money to cover a family expense, co-mingling funds, failing to keep receipts — can lead to accusations of financial exploitation, removal as agent, or personal liability for losses.

The Core Obligations

Fiduciary duty under a POA breaks down into several specific requirements. These apply regardless of whether your parent's POA is a boilerplate document from an online service or a custom instrument drafted by an elder law attorney.

Duty of loyalty. Every decision you make must serve your parent's interests, not your own. You can't use your parent's money to invest in your business, loan funds to yourself, or direct assets to benefit yourself even indirectly. This prohibition on self-dealing is absolute unless the POA document explicitly authorizes specific exceptions (and even then, courts scrutinize them).

Duty of care. You must manage your parent's affairs with the same prudence a reasonable person would exercise with their own assets — and arguably more carefully, since you're managing someone else's. This means making informed decisions, seeking professional advice when needed (tax, investment, healthcare), and not taking unreasonable risks with your parent's money.

Duty to account. You must maintain detailed records of every financial transaction you conduct on your parent's behalf. Income received, bills paid, assets managed, expenses incurred. If anyone challenges your management — a sibling, a court, Adult Protective Services — your records are your defense.

Duty to preserve assets. Your parent's money should be used for your parent's benefit and preserved for their future needs. You can't make gifts from your parent's assets (to yourself, to siblings, to charities) unless the POA specifically authorizes gift-giving. Even then, gifts should be consistent with your parent's prior established pattern — if your parent never gave $10,000 annual gifts to family members while competent, starting that practice now will raise red flags.

Duty to keep assets separate. Your parent's money goes in your parent's accounts. Your money goes in yours. Never deposit your parent's income into your personal checking account, even temporarily. Never use your parent's credit card for your own purchases, even if you plan to reimburse. Co-mingling funds is the single most common basis for removal of a POA agent and for allegations of financial exploitation.

How to Keep Records That Protect You

Good recordkeeping isn't just an obligation — it's your shield against liability claims. Here's what a defensible accounting looks like:

• A dedicated checking account for your parent's funds, titled in your parent's name with you as agent (not a joint account). All income goes in; all expenses come out. One account, one paper trail.
• Receipts for every expenditure. Keep a running log with date, amount, payee, and purpose. "Groceries for Mom — Safeway — $87.42" is adequate. "Cash — $200" with no further explanation is a problem.
• Monthly statements showing the opening balance, all transactions, and the closing balance.
• Supporting documentation for any major decision: the home repair invoice, the insurance premium notice, the medical bill statement, the property tax assessment.
• A record of any professional fees — elder law attorney, accountant, geriatric care manager — paid from your parent's funds. These are legitimate expenses, but they need documentation.

If a sibling or a court ever asks you to account for your management, handing over a clean, organized file of monthly statements and receipts is the fastest way to resolve the inquiry. Handing over a shoebox of loose receipts and saying "I kept track in my head" is the fastest way to lose your authority.

Common Mistakes That Create Liability

Paying yourself for caregiving without authorization. If you're providing full-time care for your parent and want to be compensated from their assets, you need a written caregiver agreement — ideally reviewed by an elder law attorney — that specifies the services, the rate, and the payment schedule. Informal "I'll just take what's fair" arrangements look indistinguishable from self-dealing.

Making Medicaid-disqualifying transfers. Using your authority to transfer your parent's assets to family members — even with good intentions, like protecting assets from nursing home costs — can trigger Medicaid lookback penalties. If your parent later needs Medicaid, those transfers create a disqualification period that can cost the family tens of thousands of dollars. Always consult a Medicaid planning specialist before moving assets.

Failing to file tax returns. If the POA authorizes tax matters, you should arrange for your parent's income tax returns to be filed. The tax liability generally remains the parent's; personal liability for an agent depends on applicable law and the agent's own conduct.

Ignoring the POA's scope. Read the document. Some POAs grant broad authority over all financial matters. Others are limited to specific accounts, specific types of transactions, or specific time periods. Acting outside the scope of the POA's grant — selling a property when the POA only covers bank accounts, for example — exposes you to personal liability for unauthorized transactions.

When Another Family Member Challenges You

If a sibling accuses you of mismanaging your parent's assets, the situation escalates quickly. They can petition the court to order an accounting, to remove you as agent, or to appoint a guardian who supersedes your authority.

Your best defense is the records you've been keeping. Produce the complete accounting, demonstrate that every dollar went to your parent's benefit, and the challenge typically collapses.

If you haven't been keeping records, engage an elder law attorney immediately. You may be able to reconstruct the accounting from bank statements and receipts, but the longer you wait, the harder it gets.

The Managing Incapacity toolkit includes the POA financial tracking templates, the monthly accounting worksheet, and the caregiver agreement framework — everything you need to exercise your fiduciary duty cleanly from day one, with records that hold up if challenged.