I often meet with couples who have done the responsible thing: they have a will. They believe their estate is in order. But then I ask a simple question. If you were both to pass away tomorrow, what happens to the inheritance you’ve designated for your 18-year-old son? The answer is often a sudden, uncomfortable silence. An outright inheritance, given to a young adult with little financial experience, can vanish in a matter of months.
This is where a simple will falls short. A will is excellent at answering who gets your assets. It is less effective at controlling how and when they receive them. For that, we turn to a more deliberate instrument of stewardship: the testamentary trust.
What a Testamentary Trust Is—and Isn’t
A testamentary trust is not a separate document you sign and file away. It is a trust written directly into the text of your Last Will and Testament. It has no legal existence while you are alive. It is a contingency plan, dormant until your will is admitted to probate in New York’s Surrogate’s Court. Only then does the trust spring to life.
This is a critical distinction from a living trust (or inter vivos trust), which is created and funded during your lifetime, largely to avoid the probate process. A testamentary trust, by contrast, is an integral part of the probate process. Your assets will still pass through Surrogate’s Court, but instead of being distributed outright to a beneficiary, they will be directed into the trust you designed.
Think of it this way: your will is the set of instructions for your executor. The testamentary trust is a detailed sub-chapter of those instructions, creating a protective vessel for certain assets and certain beneficiaries, managed by a trustee you hand-pick.
When Is This Structure Prudent?
I recommend testamentary trusts in a few common scenarios. The goal is always the same: to protect the legacy you’ve built from being squandered or lost, and to provide for your loved ones in a structured, intentional way.
Protecting Minor Children or Young Adults
This is the classic and most compelling reason for a testamentary trust. You can direct your chosen trustee to manage the inheritance for your children’s benefit. The trustee can be instructed to pay for their health, education, and general welfare. More importantly, you decide when your children receive the principal. Perhaps they get one-third at age 25, half of the remainder at 30, and the rest at 35. This staggered distribution gives them a chance to mature financially before taking full control of a significant inheritance.
Caring for a Beneficiary with Special Needs
An outright inheritance can be devastating for a loved one who relies on government benefits like Medicaid or Supplemental Security Income (SSI). A large cash gift could disqualify them from the very programs they need for medical care and housing. A properly structured Supplemental Needs Trust—a specific type of testamentary trust—holds the assets for the beneficiary’s benefit without legally counting as their own resource. The funds can be used to pay for supplemental needs that government benefits don’t cover, preserving their quality of life without disrupting their eligibility.
Generational Wealth and Spendthrift Concerns
Sometimes, the concern isn’t a beneficiary’s age, but their judgment. If you have a child or other heir who struggles with managing money, a testamentary trust can provide a lifetime of support without giving them direct access to the principal. The trustee can make distributions based on the guidelines you set, protecting the inheritance from creditors or a pattern of poor financial decisions. It ensures your legacy supports them for decades, rather than disappearing in a few years.
The Trustee and Surrogate’s Court Oversight
The person or institution you name as trustee is the custodian of your legacy. This is not a role to be assigned lightly. The trustee has a profound fiduciary duty—the highest standard of care under the law—to manage the trust assets prudently and solely in the best interests of the beneficiaries.
Because a testamentary trust is created under the authority of the court, the trustee is accountable to it. The Surrogate’s Court in the county where the will is probated—whether in Manhattan or elsewhere in New York—retains jurisdiction over the trust. Under the Surrogate’s Court Procedure Act (SCPA), the court can require the trustee to provide a formal accounting of their actions. For example, SCPA § 2205 gives the court the power to compel an accounting on its own initiative or upon a petition from a beneficiary. This judicial oversight provides a powerful layer of protection for the beneficiaries.
While this court involvement means the trust’s affairs are not entirely private, it also means there is a legal backstop if a trustee is not acting appropriately. For many of my clients, that trade-off is well worth it.
A will is the foundation of an estate plan. But for many families, it’s only the first step. A testamentary trust builds on that foundation, adding the structure needed to protect your assets and provide for your family across generations.
The first step in this process is a deliberate review of your current will’s provisions for your heirs. I invite you to schedule a confidential review of your existing documents with our firm, where we can determine if your plan fully aligns with your long-term intentions.
