A couple I met last year had spent two decades building a successful business in Brooklyn. They arrived as students, became lawful permanent residents, and raised two American-born children. They owned their brownstone, a portfolio of U.S. stocks, and the business itself. They assumed their planning needs were the same as their neighbors’. They were mistaken. For non-U.S. citizens, even those here legally for decades, the rules of legacy are fundamentally different—and the financial consequences of inaction can be devastating.
The core issue is often a painful surprise for families. While a U.S. citizen currently enjoys a federal estate tax exemption of over $13 million, a non-citizen who is not legally “domiciled” in the U.S. is granted an exemption of only $60,000. The gap between those two numbers can consume a lifetime of work.
The Domicile Test and the Tax Trap
Everything hinges on the legal concept of “domicile.” This is not the same as residency or visa status. Domicile is about intent—it is the place you consider your permanent home, the one you intend to return to even when you are away. The IRS examines several factors to determine this: the location of your family, your community ties, the address on your driver’s license, and where you are registered to vote. A person can have many residences, but only one domicile.
For a non-citizen resident of New York, this creates a dangerous ambiguity. If the government determines your domicile was your country of origin, your U.S.-based assets—real estate, stocks held in a U.S. brokerage, business interests—above that $60,000 threshold are subject to federal estate tax. For the Brooklyn family I mentioned, this would have meant a forced sale of assets simply to pay an unexpected tax bill, jeopardizing the stability they worked so hard to create for their children.
This is not a theoretical problem. It is a practical one that plays out in families across our city every year. Intentional planning is the only way to establish clear evidence of domicile and protect your estate from this risk.
Preserving Your Legacy for a Non-Citizen Spouse
A second critical issue arises when one spouse is a U.S. citizen and the other is not. Typically, a U.S. citizen can leave an unlimited amount to their citizen spouse tax-free through the unlimited marital deduction. This deduction does not automatically apply if the surviving spouse is not a U.S. citizen. The government’s concern is that the non-citizen spouse could leave the country with the assets, beyond the reach of the U.S. estate tax system.
The primary legal instrument we use to address this is the Qualified Domestic Trust, or QDOT. By transferring assets into this specific type of trust, you can defer the estate tax until the surviving non-citizen spouse passes away or withdraws principal from the trust. A QDOT allows the non-citizen spouse to benefit from the assets during their lifetime while ensuring the IRS can collect any tax due later.
Setting up a QDOT has strict requirements. For example, at least one trustee must be a U.S. citizen or a U.S. bank. This is a deliberate, formal structure that provides a clear path for generational stewardship when a family has international ties.
Guardianship Across Borders
Beyond financial matters, the most personal aspect of any estate plan is providing for minor children. For immigrant families, this often involves relatives who live outside the United States. Naming a sister in Dublin or a brother in Tel Aviv as the guardian for your New York-based children is possible, but it requires careful and deliberate planning.
A simple declaration in a will may not be enough. The New York Surrogate’s Court must approve the appointment, a process governed by the Surrogate’s Court Procedure Act (SCPA). Under SCPA § 1701, the court’s primary duty is to act in the best interest of the child. A judge will have questions about an international guardian’s ability to care for the child, the logistics of a potential move, and the legal status of the proposed guardian. We must build a clear, compelling case within the will and supporting documents that this designation is a sound and prudent choice for the children’s future.
Without this foresight, the court could appoint a local guardian who was not the parents’ choice. This is perhaps the most important contingency to plan for—the continuity and stability of your children’s lives.
The laws surrounding estate planning for non-citizens are not designed to be punitive, but they are unforgiving of ambiguity. Your status as a resident is not the same as your status for tax purposes, and the difference demands a plan that is both intentional and technically precise. It is about ensuring the legacy you have built here can be passed on, fully and securely, to the next generation.
The first step is to clarify your legal domicile and inventory your U.S. assets. For non-citizen residents who have built a life in New York, the next prudent step is a formal review of your asset structure and domicile status. This analysis determines exactly which rules apply to your family and your legacy.
