A trustee is the person (or institution) legally responsible for managing the assets held in a trust for the benefit of someone else. Under New York law, that role is not a casual favor — it is a fiduciary position, meaning the trustee must act with absolute loyalty, invest the trust’s assets prudently, keep meticulous records, and account to the beneficiaries. In short, a trustee holds and administers property that does not belong to them, and the law holds them to one of the highest standards of conduct it recognizes. New York’s rules for trusts and trustees come primarily from the Estates, Powers and Trusts Law (EPTL) Article 7, with the investment standard set by EPTL Article 11-A. This article explains exactly what a trustee does — and, just as importantly, the most common and costly mistakes that land trustees in court.
The Core Job: What a Trustee Actually Does
When a grantor creates a trust, they transfer assets into it and name a trustee to manage those assets according to the trust’s terms. Whether the trust is a revocable living trust the grantor controls during life, an irrevocable trust built for estate-tax or Medicaid planning, or a supplemental (special) needs trust for a disabled beneficiary, the trustee’s day-to-day responsibilities follow a consistent pattern:
- Take control of and safeguard trust assets — retitling property into the trust’s name and protecting it from loss.
- Invest prudently under New York’s Prudent Investor Act (EPTL Article 11-A).
- Make distributions to beneficiaries exactly as the trust document directs — not as the trustee personally thinks best.
- Keep complete records of every receipt, disbursement, and decision.
- File tax returns and pay any taxes the trust owes.
- Communicate with and account to beneficiaries, providing a clear financial picture of the trust.
To understand how these duties differ across trust types, see our Trusts Overview and our guide to Trust Administration.
The Three Fiduciary Duties Under New York Law
New York imposes three foundational fiduciary duties on every trustee. Failing any one of them can expose the trustee to personal liability.
1. The Duty of Loyalty
The trustee must act solely in the interest of the beneficiaries. This means no self-dealing — a trustee cannot buy trust property for themselves, lend trust money to their own business, or steer a transaction to benefit a friend or family member. Even an honest deal can be voided if it creates a conflict of interest.
2. The Prudent-Investor Duty
Under EPTL Article 11-A, the trustee must invest and manage trust assets as a “prudent investor” would — considering the trust’s purposes, the needs of current and future beneficiaries, risk and return, diversification, and the overall portfolio rather than any single investment in isolation. A trustee is not judged by hindsight on whether an investment went up or down, but on whether the process was reasonable.
3. The Duty to Account
The trustee must keep accurate records and account to the beneficiaries — showing what came in, what went out, and what remains. Beneficiaries have the right to this information, and a trustee who cannot produce a clean accounting is exposed in any dispute.
The Most Common — and Costly — Trustee Mistakes
Most trustee liability does not come from theft. It comes from well-meaning people who simply did not understand the rules. Here are the pitfalls we see most often in New York, and how to avoid each.
| Mistake | Why It’s Costly | How to Avoid It |
|---|---|---|
| Commingling funds | Mixing trust money with personal accounts breaches the duty of loyalty and destroys the audit trail. | Keep a separate trust bank account; never “borrow” from the trust. |
| Self-dealing | Buying trust property or doing business with the trust can be voided and trigger personal liability. | Avoid any transaction where you have a personal interest; get court or beneficiary approval first. |
| Failing to diversify / ignoring 11-A | Holding a single concentrated asset can violate the prudent-investor standard. | Build a diversified portfolio appropriate to the trust’s purposes; document your reasoning. |
| Poor recordkeeping | Without records, the trustee cannot account and loses every dispute. | Track every transaction contemporaneously; retain statements and receipts. |
| Treating beneficiaries unequally | Favoring one beneficiary breaches the duty of impartiality. | Follow the trust document precisely; do not substitute personal judgment. |
| Distributing from a Special Needs Trust improperly | A wrong distribution can disqualify a disabled beneficiary from Medicaid or SSI. | Understand the rules of EPTL 7-1.12 before any distribution; consult counsel. |
| Mishandling an irrevocable trust | Treating an irrevocable trust as flexible can blow Medicaid or estate-tax planning. | Respect the trust’s terms; the 5-year Medicaid look-back is unforgiving. |
| Missing tax deadlines | Penalties and interest come out of the trust — and the trustee may be personally liable. | Calendar all filing dates; engage a tax professional. |
A few of these deserve special emphasis because they involve New York’s most technical trusts.
The Special Needs Trust Trap
A supplemental needs trust under EPTL 7-1.12 exists to preserve means-tested benefits like Medicaid and SSI for a disabled beneficiary. A trustee who hands cash directly to the beneficiary — or pays for something the program counts as income — can inadvertently disqualify them from benefits. This is one of the highest-stakes areas of trust administration. Learn more on our Special Needs Trust page.
The Irrevocable Trust Discipline
An irrevocable trust is used for estate-tax reduction, asset protection, and Medicaid planning subject to the 5-year look-back. Because it generally cannot be amended, a trustee must administer it strictly by its terms. A trustee who treats it loosely — as if it were a revocable trust — can destroy the very tax or Medicaid protection it was created to provide. See our Irrevocable Trust overview for details.
Why the Trust Structure Matters to the Trustee
Different trusts carry different trustee obligations:
- A revocable living trust keeps the grantor in control and can be amended or revoked at any time. Its primary benefits are avoiding probate, privacy, and incapacity management — but it does not save estate tax, because the assets remain in the grantor’s taxable estate.
- An irrevocable trust removes assets from the taxable estate and is built for tax savings, asset protection, and Medicaid planning.
This matters for estate-tax planning. New York’s estate tax in 2026 uses a basic exclusion of $7,350,000, with a “cliff” at 105% — $7,717,500. An estate that exceeds the cliff loses the entire exemption, not just the excess. Because a revocable trust does nothing to reduce that exposure, trustees and grantors alike need to understand which structure achieves which goal.
Trust vs. Will: Why the Trustee’s Role Is Private
One reason families choose trusts is privacy. A trust avoids probate and remains private, while a will is a public document that must be probated in the Surrogate’s Court. That means a trustee can usually administer a trust without the court supervision, delay, and public exposure of probate — but it also means the trustee, not a judge, is responsible for getting the administration right. For a side-by-side comparison, read Trust vs. Will.
Frequently Asked Questions
Can a trustee be paid for their work?
Yes. New York recognizes statutory commission schedules under the SCPA and EPTL. We don’t quote specific figures here because they depend on the trust and the facts — but a trustee is generally entitled to reasonable, statutorily defined compensation.
Can a trustee also be a beneficiary?
Often, yes — for example, a surviving spouse may serve as trustee and beneficiary. But it heightens the risk of conflicts, so the duty of loyalty and impartiality must be followed with extra care.
What happens if a trustee breaches their duties?
A trustee who breaches fiduciary duties — through self-dealing, imprudent investing, or failure to account — can be held personally liable for losses, removed by the court, and required to repay the trust.
Do I need a lawyer to serve as a trustee in New York?
You are not legally required to, but trust administration involves prudent-investor rules, tax filings, accountings, and benefit-preservation traps. Most trustees retain counsel to avoid the costly mistakes described above.
Speak With a New York Trust Attorney
Serving as a trustee — or choosing one — is a serious responsibility under New York law. At Morgan Legal Group, Russel Morgan, Esq. and our team help trustees administer trusts correctly and help families build trusts that work. If you have questions about trustee duties, trust administration, or which trust is right for your goals, schedule a consultation.
Book your 30-minute consultation with Russel Morgan, Esq.
Further reading from Morgan Legal Group: how trusts work in New York.