A client recently told me about the moment he was named a trustee. His sister called from her home in Brooklyn and said, “I’ve put you in charge of the kids’ trust if anything happens to me.” He felt a swell of pride—she was placing her family’s future in his hands. That feeling was quickly followed by a quiet sense of dread. He was a successful architect, not a financier or an attorney. What did being “in charge” actually mean? What was he legally required to do?
In estate planning, we often talk about trust in personal terms—the faith you have in a sibling, a child, or a close friend. But once that person is named as a trustee in a legal document, personal trust is transformed into something far more rigorous: a fiduciary duty. This is the highest standard of care under the law, and it carries a series of non-negotiable obligations.
Stewardship. That is the heart of a trustee’s role. You are not an owner; you are a custodian, legally bound to protect and manage assets for the benefit of others. Understanding this distinction is the first step for anyone who accepts this profound responsibility.
The Fiduciary Standard: Trust Made Law
When you agree to act as a trustee in New York, you subject yourself to the jurisdiction of the Surrogate’s Court and a body of law designed to protect beneficiaries. Your actions are no longer judged by good intentions. They are measured against a strict set of legal duties. A breach of these duties can lead to serious consequences, including personal financial liability for any losses the trust incurs.
We counsel new trustees because the role is so frequently misunderstood. It is not an honorary title. It is an active, demanding job with legally defined responsibilities. The core duties are not suggestions; they are mandates.
The Duty of Loyalty
This is the bedrock principle of fiduciary responsibility. As trustee, you must act solely in the interest of the beneficiaries. Period. Any action that benefits you personally—or benefits a third party at the expense of the trust—is prohibited. This is known as self-dealing. For example, a trustee cannot sell a trust-owned property to themselves for a below-market price or invest trust funds into their own business venture. The loyalty must be undivided.
The Duty of Prudence
A trustee must manage the trust’s assets with the care, skill, and caution that a prudent person would use in managing their own affairs. This does not mean you must be a Wall Street expert, but it does mean you cannot be reckless. You must make informed decisions, diversify investments to manage risk, and avoid speculation.
New York codifies this standard in the Prudent Investor Act, found in Estates, Powers and Trusts Law (EPTL) §11-2.3. The statute requires a trustee to pursue an “overall investment strategy” and consider factors like economic conditions, inflation, tax consequences, and the unique needs of the beneficiaries. Simply putting all the trust funds into a savings account—or into one volatile stock—would likely be a breach of this duty.
Accountability and Communication
Being a trustee is not a silent role. Two other duties are critical to fulfilling your obligations and maintaining the confidence of the beneficiaries you serve.
The Duty to Account
A trustee must keep meticulous and accurate records of every transaction—every dollar in, every dollar out. You are accountable to the beneficiaries for the administration of the trust. They have a right to know how their assets are being managed, and you have a legal obligation to provide them with regular accountings. This transparency is not optional. It is a fundamental part of the job and the best defense against future disputes.
The Duty of Impartiality
Many trusts have more than one beneficiary, often with competing interests. A surviving spouse might be entitled to income from the trust for their lifetime (the “income beneficiary”), while the children are entitled to whatever remains after the spouse passes away (the “remainder beneficiaries”). A trustee cannot favor one over the other. Investment and distribution decisions must be balanced, treating all beneficiaries fairly according to the terms of the trust document. This can be one of the most challenging parts of the role, requiring careful judgment.
Being chosen as a trustee is a significant honor. It signifies the ultimate confidence in your judgment and integrity. But that personal trust comes with a legal framework that must be respected. The duties are not punitive; they are designed to ensure that the person who created the trust—the grantor—has their wishes for their family carried out faithfully for generations to come.
If you have been named a trustee or are considering whom to appoint in your own estate plan, the first step is to understand these duties in full. We often schedule a Trustee Review meeting to walk a new fiduciary through the specific terms of their trust document, outline their legal responsibilities, and establish a clear administrative plan from day one.
