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Estate Tax Rules for Non-US Citizen Spouses

Written by Koh Fujimoto | Feb 16, 2025 8:37:19 PM

Navigating the intricate landscape of estate tax rules can be especially challenging for non-US citizen spouses, who face unique legal hurdles and tax implications.

Understanding the Basics of Estate Tax for Non-US Citizen Spouses

Estate tax is a tax on the transfer of the estate of a deceased person. In the United States, this tax is applied to the fair market value of the decedent's assets at the time of their death. For non-US citizen spouses, the rules can be significantly more complicated.

Unlike US citizen spouses, who benefit from an unlimited marital deduction, non-US citizen spouses must navigate a series of restrictions. This means that a surviving spouse who is not a US citizen may face immediate taxation on jointly-owned assets unless they can prove their financial contributions to these assets. For a comprehensive understanding of how domicile and residency affect cross-border individuals and their families under the US tax perspective, it's important to consult with tax professionals.

Differences Between US Citizen and Non-US Citizen Spouses in Estate Tax

The estate tax rules differ notably between US citizens and non-US citizens. Under Section 2040(b)(1), assets owned jointly by US citizens are typically split 50-50 for estate tax purposes. However, this rule does not apply to non-US citizens.

Additionally, Section 2056(d)(1)(B) stipulates that non-US citizen spouses cannot benefit from the unlimited marital deduction. This can result in a larger portion of the estate being subject to taxation. Instead, non-US citizen spouses may need to use qualified domestic trusts (QDOTs) to defer estate taxes.

Strategies to Minimize Estate Tax for Non-US Citizen Spouses

Non-US citizen spouses can employ several strategies to minimize estate taxes. One approach is to make lifetime gifts, which can reduce the size of the taxable estate. This strategy leverages the annual gift tax exclusion to transfer assets out of the estate without incurring gift taxes. However, the US will include the value of those transferred U.S. assets within the three years before death. See Code Section 2104(b). 

Another effective strategy is to utilize Qualified Domestic Trusts (QDOTs). These trusts allow the estate to qualify for the marital deduction, thereby deferring the estate tax until the surviving spouse passes away or withdraws the principal from the trust.

Legal Tools and Trusts for Non-US Citizen Spouses

Qualified Domestic Trusts (QDOTs) are an essential tool for non-US citizen spouses. By placing assets into a QDOT, the estate can take advantage of the marital deduction, deferring estate taxes until distributions are made from the trust or the surviving spouse dies.

Additionally, other trusts and legal instruments, such as irrevocable life insurance trusts (ILITs), can help in estate planning. These tools can provide liquidity to pay estate taxes and protect assets from immediate taxation.

Consulting Financial Advisors for Personalized Estate Planning

Given the complexity of estate tax laws, it is crucial for non-US citizen spouses to consult with financial advisors who specialize in estate planning. These professionals can provide personalized advice tailored to your specific situation, helping you to navigate the legal landscape and minimize tax liabilities.

Financial advisors can also help establish the necessary legal structures, such as QDOTs and other trusts, to ensure that your estate plan is tax-efficient and compliant with US laws.

Disclaimer

We are not a law firm and do not provide legal services. Instead, we provide tax advice to help you navigate your cross-border life journey. In addition, the information in this blog is very general and should not be considered legal advice.

We disclaim any responsibility for any consequences that may arise from the use of this information. For personalized legal advice, please consult a qualified attorney. We also can work with an excellent international estate planning attorney to help you plan for the estate taxes.