The Core Duties of a Trustee in New York

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A client recently came into our Madison Avenue office with a thick binder. Her father, a lifelong Brooklyn resident, had passed away, and she had just learned he had named her as the successor trustee of his revocable trust. “I have no idea what to do first,” she told me. “Am I in charge of everything now? Am I liable if I make a mistake?”

Her questions are common. Many people named as a trustee—the person responsible for managing a trust’s assets—are honored but also overwhelmed. They often confuse the role with that of an executor, who administers a will through Surrogate’s Court. While both are fiduciaries, a trustee’s duties are distinct, guided by the trust document itself and a strict set of New York laws. Stewardship is the heart of the matter. You are not an owner—you are a custodian of someone else’s legacy.

First Steps: Marshalling Assets and Notifying Beneficiaries

Once you accept the role of trustee, your work begins immediately. The first duty is to take control of the trust’s assets. This process, often called “marshalling,” involves identifying everything the trust owns—bank accounts, brokerage accounts, real estate, business interests—and retitling them into your name, as trustee.

This is more than just paperwork. It is an act of securing the legacy the creator of the trust—the grantor—entrusted to you. You must locate the original trust document, read it carefully, and understand its specific instructions. Who are the beneficiaries? When and how should distributions be made? Are there any specific limitations on your powers?

At the same time, you have a duty to inform the beneficiaries that you are now the acting trustee. Clear, early communication can prevent a great deal of suspicion and conflict down the road. You do not need to provide a full accounting on day one, but a simple, formal notification sets a professional tone and fulfills a core obligation.

The Fiduciary Duty: An Uncompromising Standard

As a trustee, you are held to one of the highest legal standards: the fiduciary duty. This is not a vague guideline; it is a legally enforceable obligation to act solely in the best interests of the beneficiaries. This duty has two main components: the duty of loyalty and the duty of prudence.

The duty of loyalty means you cannot engage in self-dealing. You cannot sell trust property to yourself, borrow from the trust, or make any decision that benefits you at the expense of the beneficiaries. The duty of prudence requires you to manage the trust’s assets as a “prudent investor” would. This means making sound investment decisions, diversifying assets to manage risk, and avoiding speculation. It means keeping meticulous records of every transaction—every dollar in and every dollar out.

New York law takes this so seriously that certain attempts by a grantor to limit a trustee’s liability are void as against public policy. For example, under Estates, Powers and Trusts Law (EPTL) § 11-1.7, a trust document cannot exonerate a trustee from liability for failing to exercise “reasonable care, diligence and prudence.” The law demands accountability.

Administering the Trust: Accounting, Taxes, and Distribution

Managing a trust is an ongoing process. You are responsible for filing annual income tax returns for the trust and providing beneficiaries with the necessary tax forms, like a K-1. You must also provide regular accountings to the beneficiaries, showing all income, expenses, and distributions. Transparency is your best defense against future challenges.

Finally, your most visible duty is to distribute the trust assets according to the grantor’s instructions. This might be an immediate, outright distribution upon the grantor’s death. Or, the trust might require you to hold assets for years, distributing funds for a child’s education, supporting a special needs individual, or managing assets until a beneficiary reaches a certain age. Following these instructions is not optional—it is your legal mandate.

Serving as a trustee is a significant responsibility, not a ceremonial title. It requires diligence, impartiality, and a clear understanding of the rules. The work is demanding, but it is also a profound act of service to a family.

If you have been named a trustee and are unsure of your duties, the first step is to understand the scope of your responsibilities under the trust document. Our firm can schedule a fiduciary review to analyze the trust agreement and create a clear checklist of your legal obligations and a timeline for action.

DISCLAIMER: The information provided in this blog is for informational purposes only and should not be considered legal advice. The content of this blog may not reflect the most current legal developments. No attorney-client relationship is formed by reading this blog or contacting Morgan Legal Group PLLP.

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