A fiduciary account holds money that belongs to someone else, and the person managing it is legally required to act in their interest, not their own
A fiduciary account is a bank or investment account where one person (the fiduciary) holds and manages money on behalf of another person (the beneficiary). The fiduciary has a legal duty to use that money only for the beneficiary's benefit and to keep it separate from their own funds. The bank or brokerage knows the account is fiduciary and treats it differently from a regular personal account.
Common examples include a parent managing a minor child's inheritance, a guardian handling funds for someone unable to manage their own money, an executor distributing a deceased person's estate, or a trustee managing assets held in a trust. The key difference from a joint account or a personal account is the legal obligation: the fiduciary cannot spend the money on themselves, cannot mix it with their own funds, and must be able to show exactly how and why every dollar was spent.
If the fiduciary misuses the money—spending it on personal expenses, investing it recklessly, or simply losing track of it—they can be sued and forced to repay it, even if they meant well. Banks protect themselves and the beneficiary by requiring documentation that proves the fiduciary's authority and by flagging large or unusual withdrawals.
Key Takeaways
- A fiduciary account is opened in the fiduciary's name but the money belongs to and must be used only for the beneficiary.
- The fiduciary has a legal duty to act in the beneficiary's interest and keep detailed records of every transaction.
- Banks require proof of authority—such as a court order, trust document, or power of attorney—before opening a fiduciary account.
- Money in a fiduciary account is typically protected from the fiduciary's creditors because it is not legally the fiduciary's property.
- If a fiduciary misuses funds, they can be sued and forced to repay the money plus damages.
Types of fiduciary relationships and what each one means
Different situations create different fiduciary relationships, and each one comes with different rules about what the fiduciary can and cannot do.
A guardian is appointed by a court to manage money and make decisions for a minor child or an adult who cannot manage their own affairs. The guardian must file regular accountings with the court showing how the money was spent. A conservator is similar but typically handles only financial matters, while a guardian may also make personal or medical decisions.
An executor (or executrix, if female) is named in a will to distribute the deceased person's estate. The executor holds assets temporarily while paying debts and taxes, then distributes what remains to the heirs. An administrator does the same job when there is no will.
A trustee manages money held in a trust document. Unlike an executor, a trustee may manage the money for years or even indefinitely, following the instructions in the trust. A power of attorney gives one person the authority to act on another's behalf—for example, to pay bills or manage investments—while the original owner is still alive.
Each role has different reporting requirements. Guardians and conservators file with the court. Executors file with the probate court and the IRS. Trustees may file with beneficiaries and the IRS but not always with a court. Powers of attorney typically do not require court filings unless the document specifies it.
How banks set up and monitor fiduciary accounts
When you open a fiduciary account, the bank requires proof that you have the legal authority to act as a fiduciary. This proof varies by role. A guardian brings a court order. An executor brings a certified copy of the will and letters testamentary (a court document confirming the executor's authority). A trustee brings the trust document or a certification of trust. Someone with power of attorney brings the signed power of attorney document.
The account is opened in a name that makes the fiduciary relationship clear. For example, it might be titled "Jane Smith, Guardian for Michael Smith" or "Robert Jones, Executor of the Estate of Patricia Jones." This title tells anyone looking at the account—including the bank's compliance team—that the money is not Robert's or Jane's personal property.
Banks monitor fiduciary accounts more closely than personal accounts. Large withdrawals, transfers to the fiduciary's personal account, or spending patterns that seem inconsistent with the beneficiary's needs may trigger a review or a call to the fiduciary asking for an explanation. Some banks require the fiduciary to provide documentation—receipts, invoices, or court orders—before releasing large sums.
If the fiduciary tries to move money in a way that looks like theft or fraud, the bank may freeze the account and report it to law enforcement. Banks are required to report suspicious activity, and a fiduciary account is a common target for theft because it holds someone else's money.
What happens to fiduciary account money if the fiduciary dies or becomes unable to act
If the fiduciary dies or becomes incapacitated, the account does not automatically pass to anyone. The beneficiary or another interested party must petition the court to appoint a successor fiduciary. Until that happens, the money is frozen.
For guardianships and conservatorships, the court will appoint a replacement. For an estate being administered by an executor, if the executor dies before finishing, the court appoints an administrator to complete the work. For a trust, the successor trustee named in the trust document takes over automatically—no court order needed.
This is why fiduciaries are often required to name a successor or to keep the court informed of their health and plans. If you are a fiduciary and something happens to you, the beneficiary could lose access to their money for months while the court sorts out who has authority.
FDIC protection and creditor claims against fiduciary accounts
Money in a fiduciary account is covered by FDIC insurance, but the coverage is separate from the fiduciary's personal accounts. If you have a personal checking account with $250,000 and a fiduciary account with $250,000 at the same bank, both are fully covered up to $250,000 each.
If the fiduciary has personal debts—credit card debt, a lawsuit judgment, or a tax lien—creditors generally cannot seize money in a fiduciary account because it is not the fiduciary's property. However, if the fiduciary has mixed their own money with the beneficiary's money in the same account, creditors may argue they have a claim on part of it. This is one reason banks require fiduciary accounts to be kept separate.
If the fiduciary owes child support or alimony, some states allow those claims to reach a fiduciary account. Tax liens from the IRS can also attach to fiduciary accounts in some circumstances. The rules vary by state and by the type of debt, so a fiduciary facing creditor claims should consult an attorney.
Reporting requirements and tax treatment of fiduciary accounts
Fiduciary accounts generate income—interest, dividends, or capital gains—and that income must be reported and taxed. Who pays the tax depends on the type of account and the terms of the trust or guardianship.
For a guardianship or conservatorship, income is usually taxed to the beneficiary (the minor or incapacitated person). The guardian files a tax return on the beneficiary's behalf. For an estate, income earned while the estate is being administered is taxed to the estate itself, and the executor files an estate tax return (Form 1041). For a trust, income may be taxed to the trust or to the beneficiaries, depending on whether the income is distributed or retained in the trust.
Guardians and conservators must file annual accountings with the court, showing all money received, all money spent, and the balance remaining. Executors file a final accounting with the probate court before distributing the estate. Trustees may file accountings with beneficiaries but not always with a court, depending on the trust document and state law.
The IRS requires fiduciary accounts to have an Employer Identification Number (EIN) if they will earn income or exist for more than one tax year. The bank will ask for this number when you open the account.
Common mistakes fiduciaries make and how to avoid them
The most common mistake is mixing the beneficiary's money with the fiduciary's own money. This creates confusion about what belongs to whom, makes it hard to prove the fiduciary acted properly, and can expose the beneficiary's money to the fiduciary's creditors. Always keep a separate account with a title that makes clear it is fiduciary.
Another mistake is failing to keep records. Every deposit, withdrawal, and transfer should be documented. If the fiduciary cannot show where the money went, a court may assume it was stolen. Keep receipts, invoices, bank statements, and any court orders or trust documents that authorized the spending.
Some fiduciaries spend money on things they believe are in the beneficiary's interest but that the law does not allow. For example, a guardian cannot use a child's money to pay the guardian's own mortgage, even if the guardian is housing the child. The money must be spent on the child's direct needs: food, medical care, education, housing costs that are separate from the guardian's own living expenses.
Failing to file required accountings or tax returns is also common and can result in court sanctions, removal as fiduciary, or criminal charges. If you are a fiduciary, mark your calendar for filing deadlines and consult a tax professional or attorney if you are unsure what is required.
Frequently Asked Questions
Can a fiduciary take money from the account to pay themselves for their work?
It depends on the type of fiduciary role and what the court order or trust document says. Executors and trustees are often allowed to take a fee, but the amount must be reasonable and must be approved by the court or beneficiaries. Guardians are usually not allowed to take a fee unless the court approves it. A power of attorney typically does not allow payment unless the document specifically says so.
What if the beneficiary disagrees with how the fiduciary is spending the money?
The beneficiary can petition the court to remove the fiduciary and appoint someone else, or to order the fiduciary to repay money spent improperly. If the fiduciary is a trustee, beneficiaries can also sue the trustee directly for breach of fiduciary duty. The fiduciary must be able to show that every dollar was spent in the beneficiary's interest.
Can a fiduciary invest the money in stocks or other risky investments?
Yes, but only if the court order or trust document allows it and only if the investments are prudent. A fiduciary cannot take excessive risks with someone else's money. Most states have a "prudent investor" rule that requires fiduciaries to invest the way a reasonable person would—diversified, not speculative. If an investment loses money due to recklessness, the fiduciary can be sued to make up the loss.
Is a fiduciary account the same as a joint account?
No. In a joint account, both people own the money and can spend it however they want. In a fiduciary account, the fiduciary holds the money but does not own it—it belongs to the beneficiary. The fiduciary can only spend it for the beneficiary's benefit and must keep records. A joint account offers no legal protection to the beneficiary.
What happens to money left in a fiduciary account after the beneficiary dies?
For a guardianship, the money goes to the beneficiary's estate and is distributed according to their will or state law. For a trust, the money goes to whoever the trust document says should receive it. For an estate being administered by an executor, any remaining money goes to the heirs or beneficiaries named in the will. The fiduciary's job is to transfer the money to the right place and close the account.