An agency account is a financial account where you stay the legal owner of the money or investments inside it, but you give another person written authority to manage it on your behalf. That other person, the agent, can sign checks, place trades, pay bills, or handle whatever specific tasks the paperwork allows. They cannot treat the assets as their own. People use agency accounts when illness, travel, military deployment, or the sheer complexity of their finances makes it impractical to handle everything personally.
Who Owns the Money and Who Can Touch It
Three roles sit inside every agency account. You are the principal, meaning the owner and the source of all authority. Your agent is the person you have authorized to act. The third parties are the banks, brokerages, buyers, and sellers your agent deals with on your behalf.
The agent’s power comes in two flavors. Actual authority is whatever you explicitly grant in a written document, usually a power of attorney or custodial agreement. That document spells out which transactions the agent can handle. Implied authority covers the practical steps reasonably necessary to carry out the stated duties. Authorizing someone to manage a rental property, for example, implicitly lets them hire a plumber when a pipe bursts.
There is also apparent authority, which exists to protect the people your agent deals with. If your words or conduct lead a reasonable outsider to believe your agent has certain powers, you can be bound by what the agent does even if you never actually granted those powers. This matters most when you want to end the arrangement. Telling the agent to stop is not enough. The banks and brokerages that have been dealing with the agent also need to be notified in writing, or you may still be on the hook for what the agent continues to do.
What the Law Requires of Your Agent
Your agent is a fiduciary. The law holds fiduciaries to a higher standard than ordinary business counterparts, and these duties attach automatically the moment the agency relationship is created. An agent who violates them is personally liable.
- Loyalty. The agent must act solely in your interest. Self-dealing, secret profits, and conflicts of interest are prohibited, even if you did not suffer an obvious financial loss.
- Care. The agent must manage your assets with the kind of prudence and attention a sensible person would bring to their own finances.
- Obedience. The agent must follow your lawful instructions and stay within the authority you granted. An agent authorized to manage a savings account cannot move the money into speculative investments on their own.
- Accounting. The agent must keep accurate records of every transaction and be ready to show you where the money went. Sloppy recordkeeping is itself a breach, even when nothing is missing.
Common Forms an Agency Account Takes
Custodial Brokerage Accounts
When you open a brokerage account, the broker-dealer typically acts as custodian. The firm holds your securities, executes trades, and collects your dividends, but every share remains yours. In a discretionary account, where the broker can make trading decisions without checking with you first on each trade, a signed authorization has to be on file.
Escrow Accounts
An escrow account is a narrow agency arrangement. A neutral third party holds funds or property until specific conditions are met, most familiarly at a real estate closing where the escrow agent holds the buyer’s deposit and releases it to the seller only after the contract’s requirements are satisfied. The escrow agent’s authority is tightly limited to the terms of the escrow agreement.
Power of Attorney Accounts
A power of attorney (POA) is the document most commonly used to create an agency relationship for personal financial management. A general POA grants broad authority over your financial affairs. A special or limited POA restricts the agent to specific tasks, such as selling a particular property or managing a single bank account.
Durability is the detail that catches people out. Under the Uniform Power of Attorney Act, adopted in a majority of states, a power of attorney is durable by default, meaning it stays effective even if you later become mentally incapacitated. In states that have not adopted the uniform act, you typically have to include specific language making the POA durable. A non-durable POA terminates the moment you lose capacity, which is precisely when you are most likely to need it.
How Agency Accounts Differ From Joint Accounts and Trusts
People often weigh an agency account against two alternatives. The differences in ownership are what matter.
A joint bank account makes both people co-owners with equal access. Either can withdraw or spend without the other’s permission. Both are equally responsible for any debts tied to the account. In most states and account types, the surviving co-owner inherits the balance automatically when one owner dies. An agency account gives the agent none of that. The agent manages the money but has no ownership claim, and the agent’s personal creditors cannot reach your funds.
Trusts are a different structure entirely. When you create a trust, you transfer assets into a separate legal entity governed by a trust document, and the trustee manages those assets according to its terms. The trust continues after your death. An agency relationship ends at your death. If you need your affairs handled beyond your lifetime, a trust is the right tool. If you need someone to run your bank account while you recover from surgery, an agency account is simpler and cheaper to put in place.
Taxes and Liability
Ownership drives both. Everything in the account belongs to you, so all interest, dividends, capital gains, and other income are taxable to you and reported on your personal return, regardless of who physically manages the account. When the account is set up in your name and Social Security number, financial institutions issue Forms 1099 directly to you. In some arrangements the agent may receive 1099s as a nominee and then file nominee 1099 returns with the IRS, allocating the income back to you and sending you a copy.1Internal Revenue Service. 2025 General Instructions for Certain Information Returns
Liability also tracks the authority you granted. When your agent acts within the scope of their authority, you bear the contractual consequences. A lease the agent signs on your behalf is your obligation. When an agent steps outside the authority you granted, you may not be bound by the unauthorized transaction at all, and the agent can face personal liability to the third party, because the agent is treated as having implicitly warranted that they had the power to make the deal. The agent is also personally liable to you for any breach of fiduciary duty, which can include restoring the property to the value it would have had without the violation plus reimbursing your legal costs.
Setting Up an Agency Account
The process starts with a legal document that creates the agency relationship, typically a power of attorney or a custodial agreement. The document should clearly define what the agent can and cannot do. Vague language invites disputes. If you want the agent to trade stocks but not withdraw cash, the document should say exactly that.
The financial institution will verify both your identity and the agent’s before opening the account. Federal banking rules require collecting each person’s name, date of birth, address, and taxpayer identification number, and verification usually means producing an unexpired government-issued photo ID.2eCFR. 31 CFR 1020.220 – Customer Identification Program Individual institutions often ask for more. The compliance department will review the executed documents, keep a certified or original copy of the POA on file, and give the agent operational access that matches the authority in the paperwork, whether that is check-writing, online banking, or trading privileges.
Name a Successor Agent
One detail people routinely skip: naming a successor. If your primary agent becomes unable or unwilling to serve and no backup is designated, the POA can become useless at the worst possible time. Including a successor provision keeps the document effective if the first agent steps down and spares you the cost and delay of drafting a new POA from scratch.
How the Arrangement Ends
An agency relationship is not permanent, and the way it ends matters as much as the way it starts.
You can revoke the agency at any time by notifying the agent in writing. Revoking the agent’s actual authority is only half the work. You also need to notify every third party that has been dealing with the agent, such as banks, brokerages, and insurance companies, because until they receive notice they may reasonably keep honoring the agent’s transactions. Some jurisdictions require filing a formal revocation notice with a government office, so checking local requirements before you start is worth the time.
Death ends the agency immediately. A power of attorney, even a durable one, expires the moment the principal dies. The agent has no authority to close accounts, pay bills, or make any decision after that. Handling a deceased person’s finances requires a different legal role, such as being named executor or being appointed administrator by a court. This is where families most often run into trouble: the agent who has managed an aging parent’s finances for years suddenly has zero authority the day the parent passes away.
Incapacity ends a non-durable POA automatically. A durable POA was designed to survive incapacity and keeps working. If no durable POA exists when someone loses mental capacity, the usual alternative is a court-supervised guardianship or conservatorship, which is far more expensive and slower than putting a durable POA in place would have been.
Protecting Yourself From an Agent Who Misbehaves
Giving someone agency authority over your finances carries real risk. An agent with broad powers can drain accounts, sell property, and redirect investments. If the agent is dishonest, recovering the money can be hard or impossible.
The legal system offers several layers of recourse. An agent who breaches their fiduciary duties can be ordered to restore your property to its prior value and to reimburse your attorney fees and costs. Courts can review an agent’s conduct at the request of any person with a sufficient interest in your welfare, which includes family members and, in many states, adult protective services agencies. Banks and other third parties have the right to refuse to honor a POA when they have a good-faith suspicion of abuse.
Practical safeguards reduce the risk from the start:
- Grant only the authority the agent actually needs. A special POA for a single transaction is safer than a general POA covering everything you own.
- Name co-agents who must act together for large transactions. That creates a built-in check on each one’s behavior.
- Require periodic accountings. Build a provision into the POA that forces the agent to send regular financial statements to a designated third party, such as another family member or an attorney.
- Choose the right person. No legal safeguard substitutes for picking an agent you genuinely trust. Courts are full of cases where families chose agents for convenience rather than character.
If you suspect misuse, revoke the POA immediately and notify every financial institution in writing. Criminal remedies exist in most states under statutes covering financial exploitation, embezzlement, and fraud, and adult protective services agencies can investigate suspected financial abuse of vulnerable adults.