The fiduciary of an estate is the person or institution a probate court authorizes to manage a deceased person’s property, pay their debts and taxes, and distribute what remains to the rightful heirs. The role carries a legal duty to put the beneficiaries’ interests ahead of the fiduciary’s own at every step, from the first bank statement opened to the final check written. Whether named in a will or appointed by a judge, this person steps into the deceased’s financial shoes for the length of the probate case.
Executor or Administrator
The title depends on whether there is a valid will. When a will exists and names someone to handle the estate, that person is called an executor, sometimes labeled a personal representative. The executor follows the instructions in the will about how property should be managed and distributed.
When someone dies without a will — known as dying intestate — no one automatically has authority over the estate. An interested person, usually a family member, must ask the probate court to appoint them as the administrator. The administrator does essentially the same job but follows the state’s default inheritance laws instead of a will.
Both roles carry identical legal weight and the same fiduciary obligations. If the appointed person dies, becomes incapacitated, or cannot continue, the court appoints a replacement. If urgent action is needed before a permanent appointment — say, to preserve a perishable asset — the court may authorize a temporary special administrator with limited powers for a specific purpose.
Who Can Serve
State laws set baseline qualifications designed to protect the estate from mismanagement. Specific rules vary, but the common requirements include:
- Age. At least 18 years old.
- Mental capacity. Capable of handling complex financial and legal decisions. Someone a court has declared incapacitated is ineligible.
- Criminal history. Many jurisdictions disqualify people with felony convictions, especially convictions involving dishonesty or financial crimes.
- Residency. A person who lives out of state may still serve, but some jurisdictions require them to name a local agent who can accept legal papers for the estate.
Banks, trust companies, and attorneys can also serve as professional fiduciaries. Estates with complicated assets or family disputes sometimes benefit from a neutral professional with no personal stake in the outcome.
Who Gets Priority
Courts follow a hierarchy. The person named in the will has the highest priority, since that reflects the deceased person’s own choice. If the will names no one, or there is no will, the typical order is surviving spouse, then adult children, then parents, then siblings, then other legal heirs. When more than one person at the same level wants to serve and the family cannot agree, the probate judge chooses after a hearing. In the rare case where no qualified family member is available or willing, a creditor of the estate or a public administrator may be appointed.
How the Fiduciary Gets Appointed
The process begins when someone files a petition with the probate court in the county where the deceased person lived. The petition package usually includes the original will if one exists, a certified death certificate, a list of heirs and beneficiaries with their addresses, and an estimated value of the deceased person’s personal property and real estate. The filing fee varies by jurisdiction and is often tied to the estimated value of the estate.
After filing, the court sends notice to interested parties — heirs, beneficiaries, and sometimes creditors — so they can object if they have grounds. A judge then holds a hearing, confirms the applicant is qualified, and issues official documents called Letters Testamentary (if there is a will) or Letters of Administration (if there is not). Those letters are the fiduciary’s proof of authority to access bank accounts, manage investments, pay bills, and eventually transfer property to beneficiaries.
EIN and Inventory
Once appointed, the fiduciary gets an Employer Identification Number (EIN) for the estate. The IRS requires this nine-digit number for the estate’s tax filings and financial accounts. Applications are free at IRS.gov and the number is issued immediately, or Form SS-4 can be filed by fax or mail.1Internal Revenue Service. Information for Executors
Next comes the inventory. The fiduciary has to locate and catalog every asset — bank accounts, real estate, vehicles, investments, personal property, and any debts owed to the deceased. Most states require a formal inventory to be filed with the court within two to three months of appointment, though the exact deadline varies. The inventory tells the court, beneficiaries, and creditors what the estate contains, and it anchors the fiduciary’s later accountings.
What the Fiduciary Actually Does
Day to day, the duties fall into a few overlapping categories, all rooted in the principle that beneficiaries come first.
Loyalty, Care, and Impartiality
The duty of loyalty prohibits self-dealing. The fiduciary cannot buy estate property at a discount, borrow from estate funds, or stand on both sides of a transaction, even one that looks fair.2Federal Deposit Insurance Corporation. Section 8 Compliance/Conflicts of Interest, Self-Dealing and Contingent Liabilities
The duty of care requires managing assets with the prudence a careful person would use for their own affairs: making reasonable investment decisions, keeping property from deteriorating, holding estate funds in separate accounts rather than mixing them with personal money, and keeping detailed records of every transaction.2Federal Deposit Insurance Corporation. Section 8 Compliance/Conflicts of Interest, Self-Dealing and Contingent Liabilities
When there is more than one beneficiary, the duty of impartiality requires treating them fairly. No beneficiary should get preferential treatment or a disproportionate share unless the will specifically says so.2Federal Deposit Insurance Corporation. Section 8 Compliance/Conflicts of Interest, Self-Dealing and Contingent Liabilities
Most probate courts also require the fiduciary to file periodic accountings showing all income received, all expenses and debts paid, and the balance available for distribution. These give the court and beneficiaries a transparent view of the estate and a chance to raise concerns before final distribution.
Notifying Creditors and Paying Debts
Early on, the fiduciary notifies creditors that the estate is open. That means sending direct notice to known creditors (mortgage companies, credit card issuers, medical providers) and publishing a notice in a local newspaper to catch any unknown ones. Publication starts a clock, and creditors who miss the state’s deadline generally lose the right to collect. Deadlines commonly fall between two and six months after notice.
The fiduciary reviews each claim, approves or rejects it, and pays approved debts from estate funds in the priority order state law sets, with funeral and administration costs at the top, then taxes, then secured debts, then unsecured debts. Distributing to beneficiaries before valid debts and expenses are settled is one of the fastest ways to create personal liability.
Taxes
The fiduciary is personally responsible for the estate’s tax filings. Missing a return or failing to pay can produce penalties against the estate and, in some cases, against the fiduciary personally.
Three filings tend to matter. The deceased person’s final individual income tax return (Form 1040) covers income from January 1 through the date of death and is due on the normal April date for the following year.3Internal Revenue Service. How to File a Final Tax Return for Someone Who Has Passed Away4Office of the Law Revision Counsel. 26 U.S. Code 6012 – Persons Required to Make Returns of Income5Internal Revenue Service. Forms 1041 and 1041-A: When to File A federal estate tax return on Form 706 is required only for larger estates; for people who die in 2026, the threshold is a gross estate above $15,000,000, and the return is due within nine months of death.6Internal Revenue Service. Estate Tax7Internal Revenue Service. Instructions for Form 706 Most estates fall well below the federal threshold, but some states impose their own estate or inheritance taxes at much lower levels.
Pay, Bonds, and Personal Risk
Serving as a fiduciary is a real commitment, and the person doing it is generally entitled to compensation from the estate. Some states set the fee by statute as a percentage of the estate’s value, commonly 2% to 5%; others allow “reasonable compensation” based on the estate’s complexity, the time involved, and the fiduciary’s skill. A will can set a different arrangement, including a flat fee or no fee at all. Family members who are also beneficiaries sometimes waive the fee. Whatever the amount, fiduciary fees are taxable income to the person who receives them, reported on a personal return in most cases and as self-employment income for professional fiduciaries.8Internal Revenue Service. Publication 559 – Survivors, Executors, and Administrators
A fiduciary bond is an insurance policy that protects the estate if the fiduciary steals assets, mismanages funds, or fails to carry out their duties. The court decides whether a bond is needed based on the estate’s value and circumstances. A will can waive the bond, but the court can still require one, particularly when there are minor beneficiaries or signs of risk. Premiums are a small percentage of the bond amount and are paid from estate funds. If the fiduciary causes a loss, the bonding company pays the estate up to the bond amount and then pursues the fiduciary personally.
That personal exposure is not just theoretical. A fiduciary who breaches their duties can be ordered to repay the estate from their own money, a remedy called a surcharge. Common triggers include self-dealing, negligent investment decisions, paying beneficiaries before settling creditor claims or taxes, mixing estate funds with personal accounts, and failing to file required accountings. Any interested party — beneficiary, co-fiduciary, or creditor — can petition the court to remove a fiduciary who has mismanaged assets, acted in their own interest, become ineligible, or ignored a court order. The court then appoints a replacement, who can sue the former fiduciary to recover losses caused by the misconduct.