An attorney-in-fact is a person you authorize, through a legal document called a power of attorney, to act on your behalf. Despite the name, an attorney-in-fact does not have to be a lawyer. It can be an adult child, a trusted friend, a financial advisor, or anyone else you choose. The word “attorney” here carries its older meaning: a person appointed to act for another. If you see the term on a document, read it as “authorized agent.”
The distinction matters because the role is often confused with an attorney-at-law, who is a licensed lawyer admitted to the bar. An attorney-in-fact needs no legal training. What they need is your trust, because once appointed, they owe you a fiduciary duty and can bind you to decisions within the scope of authority you’ve granted.
What an Attorney-in-Fact Can Do
The powers an attorney-in-fact holds come entirely from the power of attorney document itself. Different types grant different scopes of authority.
General Power of Attorney
A general power of attorney gives broad authority over your affairs. The agent can pay your bills, manage bank accounts, file taxes, buy or sell investments, and sign contracts for you. It suits situations where you need wide help with finances, but it carries a significant catch: it automatically becomes invalid if you lose mental capacity.
Limited (or Special) Power of Attorney
A limited power of attorney restricts the agent to one or a few specific tasks. You might authorize someone solely to close on a real estate sale while you’re abroad, or to manage a single investment account. Once the task is complete, the authority ends.
Durable Power of Attorney
Under the traditional common law rule, any power of attorney terminates the moment the principal becomes mentally incapacitated. A durable power of attorney overrides that rule by including language stating that the agent’s authority survives the principal’s incapacity. For most long-term planning this is the critical type, because the whole purpose of naming an agent is often to have someone ready if you can no longer manage your own affairs. Without the durability clause, the document stops working at exactly the moment it’s needed.
Springing Power of Attorney
A springing power of attorney stays dormant until a triggering event, usually a physician’s certification that you’ve become incapacitated. The agent has no authority while you can handle things yourself. The tradeoff is that proving the trigger can slow things down in urgent moments, since banks and other institutions may want written medical certification before honoring the document.
Healthcare Power of Attorney
A healthcare power of attorney is a separate document from a financial one. It lets your agent make medical decisions on your behalf, including consenting to or refusing treatment, choosing providers, and making end-of-life decisions. You can name the same person for both roles, but you need two documents. Healthcare powers of attorney are governed by different state laws, and medical providers will expect to see a document specifically granting medical authority.
The Duties That Come With the Role
Accepting appointment as someone’s attorney-in-fact is not just a favor. It creates a fiduciary relationship, the highest standard of obligation the law recognizes. The agent must put the principal’s interests above their own in every decision and transaction.
Loyalty and Good Faith
An agent must act loyally for the principal’s benefit and in good faith. That rules out self-dealing, steering transactions to benefit the agent’s own finances, or taking advantage of the principal’s trust. The agent must also stay within the scope the document actually grants. If the power of attorney only authorizes managing a bank account, the agent cannot start selling the principal’s house.
Standard of Care
The law generally requires an agent to act with the care, competence, and diligence that a prudent person would use when dealing with someone else’s property. That doesn’t demand perfection, but it does demand thoughtful, informed decisions. Reckless investments or ignoring obvious financial problems fall short.
Record-Keeping and Accounting
An agent must keep reasonable records of every transaction made for the principal: receipts, bank statements, a log of disbursements. The principal, a court, or certain other authorized parties can request a full accounting at any time, and the agent must provide one. Sloppy records look suspicious even when nothing improper happened, and they make it hard to defend yourself if someone raises questions.
No Commingling of Assets
The principal’s money and property must stay completely separate from the agent’s. Mixing funds in a shared account, even with good intentions, creates the exact conflict of interest the fiduciary duty is designed to prevent. Separate accounts, separate records, no blurred lines.
Consequences for Breaching These Duties
An agent who violates fiduciary duties faces real consequences. Courts can order the agent to repay misused funds and return property. In serious cases involving theft, fraud, or exploitation, criminal charges are possible. Prosecutors and adult protective services agencies treat elder financial abuse through power of attorney misuse as a priority.
What an Attorney-in-Fact Cannot Do
Even a general power of attorney does not make the agent a stand-in for every part of your life. Certain actions are off-limits regardless of how the document reads.
An attorney-in-fact cannot create or change your will. They cannot change beneficiaries on life insurance policies or retirement accounts unless the power of attorney specifically grants that authority, and even then some institutions resist it. They cannot vote in elections on your behalf. Their authority ends the instant you die; after that, only the executor named in your will or appointed by the probate court has legal authority over your estate.
An agent also cannot delegate their job to someone else unless the power of attorney expressly permits it. If you named your daughter and she gets overwhelmed, she cannot simply hand the role to her husband without authorization in the original document or a court order.
Tax Representation Requires a Separate IRS Filing
A general power of attorney does not automatically let your agent represent you before the IRS. If you need someone to handle tax matters, the IRS requires a separate Form 2848, Power of Attorney and Declaration of Representative. The person you authorize must also be someone eligible to practice before the IRS, such as a licensed attorney, a certified public accountant, an enrolled agent, or in limited cases a family member or qualifying student in a tax clinic program.1Internal Revenue Service. About Form 2848, Power of Attorney and Declaration of Representative
The IRS will accept a non-Form 2848 power of attorney if it meets certain requirements, but it cannot be recorded on the IRS’s Centralized Authorization File unless a completed Form 2848 is also attached.2Internal Revenue Service. Instructions for Form 2848
Getting Paid for the Work
Unless the power of attorney document says otherwise, an agent is generally entitled to reasonable compensation for the work they perform and reimbursement for out-of-pocket expenses incurred on the principal’s behalf. What counts as reasonable depends on the complexity of the work, the time involved, and local norms. A family member paying a parent’s bills might take nothing. A professional fiduciary handling a large estate typically charges fees comparable to a financial advisor or trustee.
The limiting word is reasonable. An agent who pays themselves an excessive salary from the principal’s funds is breaching the fiduciary duty. If you’re serving as someone’s agent, document your time, keep receipts, and make sure any compensation you take would hold up to a judge reviewing your records.
When the Authority Ends
A power of attorney does not last forever. Several events will terminate the agent’s authority, some automatically and some by deliberate action.
- Revocation by the principal. A mentally competent principal can revoke a power of attorney at any time. The revocation should be in writing and the agent must be notified. If the original was recorded with a government office, record the revocation there too.
- Death of the principal. The agent’s authority ends immediately. The executor or personal representative then takes over the estate.
- Completion of purpose. If the document was created for a specific task, authority ends when the task is done.
- Incapacity of the principal, for non-durable powers of attorney only. Without a durability clause, authority ends when the principal becomes mentally incapacitated.
- Agent resignation, death, or incapacity. If the document names a successor agent, that person steps in. If not, the power of attorney ends.
- Divorce. In many states, if the agent is the principal’s spouse, filing for divorce automatically terminates the spouse’s authority.
- Court order. A court can invalidate a power of attorney created through fraud or undue influence, or where the agent has abused their authority.
Why Appoint an Attorney-in-Fact Instead of Waiting
A power of attorney is something you set up voluntarily while you still have mental capacity. A guardianship or conservatorship is what a court imposes after someone has already lost capacity and has no agent in place. The difference is significant.
With a power of attorney, you choose your own agent, define the scope of their authority, and can revoke the arrangement whenever you want. A guardianship strips those choices away. A judge decides who will manage your affairs, and the person under guardianship generally cannot overrule the guardian or end the arrangement without a formal legal challenge. Guardianship proceedings are expensive, time-consuming, and public.
That is the practical case for creating a durable power of attorney while you’re healthy. It lets you pick your own agent on your own terms. Without one, your family may have no choice but to petition a court, and a judge who has never met you will decide who controls your finances and medical care.