I'm Darrin Mish. For 32 years I've practiced federal tax litigation — routine audits, Tax Court cases, and everything in between. If you're facing an IRS issue, here's what you need to know first.
The Question Every Cross-Border Family Asks
A U.S. citizen has grown children living in Europe, Asia, or Latin America. The parent owns U.S. real estate, U.S. bank accounts, U.S. retirement plans, and an interest in a U.S. business. The parent wants to leave everything to the children. The question: does the foreign citizenship of the children change the U.S. tax treatment?
The short answer is that the children’s foreign status creates several tax friction points – some manageable, some severe – that drive how the estate plan should be structured. Leaving U.S. property to foreign heirs without planning often produces tax outcomes the parent did not intend.
The U.S. Estate Tax on the Parent’s Estate
The starting point is the U.S. estate tax owed by the parent’s estate, before anything passes to the children. For a U.S. citizen or resident, the federal estate tax exemption is approximately $13.99 million for 2026 (indexed annually). Above that, estate tax applies at rates up to 40 percent.
The exemption applies regardless of the heirs’ citizenship. A U.S. citizen with a $5 million estate passing everything to foreign children pays no federal estate tax because the estate is below the exemption.
For larger estates, the exemption can be partially or fully consumed by the value above the threshold. The plain mechanics of the federal exemption do not change based on the heirs.
The Marital Deduction Trap
The first major issue arises when the surviving spouse is a foreign person. The U.S. marital deduction under IRC Section 2056 allows unlimited transfer to a U.S. citizen spouse free of estate tax. But the deduction does not apply when the surviving spouse is a non-U.S. citizen.
For a U.S. citizen who is married to a non-U.S. citizen spouse, the marital deduction is generally not available. Estate tax may apply to amounts that would have been free of tax with a U.S. citizen spouse.
The solution is the Qualified Domestic Trust (QDOT) under IRC Section 2056A. A QDOT is a trust meeting specific requirements that holds property for the non-citizen spouse. Property passing to the QDOT qualifies for the marital deduction. The trust is administered with the trustee being a U.S. person, and U.S. estate tax is collected as distributions are made from the QDOT.
The QDOT defers estate tax rather than eliminating it. The eventual distributions trigger estate tax. But the deferral mechanism allows the surviving spouse to live on the income from the trust without an immediate estate tax bill.
The Gift Tax Issues During the Parent’s Life
Outright lifetime gifts of U.S. property to foreign children are subject to U.S. gift tax under the same rules that apply to gifts to U.S. children – up to the lifetime exemption (currently combined with the estate tax exemption at approximately $13.99 million for 2026).
Annual exclusion gifts (currently $19,000 per donee for 2025, indexed annually) are available for gifts to non-U.S. citizen children, the same as for U.S. citizen children.
Gifts to a non-U.S. citizen spouse have a special annual exclusion of $190,000 (for 2025, indexed annually) – higher than the standard exclusion but lower than the unlimited marital deduction available for gifts to U.S. citizen spouses.
U.S. Real Estate Inherited by Foreign Children
When U.S. real estate passes from a U.S. parent to foreign children, the children become foreign owners of U.S. real estate. This creates ongoing U.S. tax obligations for the children.
The children file annual Form 1040-NR if they collect rental income or sell the property. The U.S.-source rental income is taxable to the foreign children at U.S. rates (typically with the IRC Section 871(d) election to treat the rental income as effectively connected to a U.S. trade or business, allowing net income taxation rather than the default 30 percent withholding on gross rent).
When the children eventually sell the inherited U.S. property, FIRPTA withholding applies. The 15 percent of gross sales price is withheld by the buyer and the foreign children must file Form 1040-NR to recover any overwithholding.
The children also face U.S. estate tax exposure on the inherited U.S. real estate at their own deaths. As nonresident aliens, their estate tax exemption is only $60,000 on U.S.-situs property. Estate tax up to 40 percent applies to amounts above that.
U.S. Retirement Accounts Inherited by Foreign Beneficiaries
U.S. retirement accounts (401(k), IRA, Roth IRA, pension plans) inherited by foreign beneficiaries present complex distribution rules.
The custodian must withhold U.S. tax on distributions to foreign beneficiaries. The withholding rate is 30 percent of the gross distribution under IRC Section 1441, reduced to treaty rates (often 15 percent for pensions, sometimes lower for IRAs) where treaties apply.
The foreign beneficiary may need to file Form 1040-NR to recover overwithholding or claim treaty benefits. Some treaties classify IRAs as pensions for treaty purposes; others do not.
The required minimum distribution rules apply to inherited retirement accounts. The SECURE Act significantly changed the inheritance rules – most non-spouse beneficiaries (including foreign children) must fully distribute the account within 10 years of the original owner’s death.
U.S. Stocks and Bonds Inherited by Foreign Children
U.S. stocks and bonds inherited by foreign children become foreign-owned U.S. securities. The tax treatment differs based on the type of security:
Dividends from U.S. stocks paid to foreign beneficiaries are subject to U.S. withholding at 30 percent (reduced to treaty rates, typically 15 percent, where applicable).
Interest from U.S. bonds is generally exempt from U.S. withholding under the portfolio interest exemption of IRC Section 871(h), assuming the foreign beneficiary holds less than 10 percent of the bonds and other requirements are met.
Capital gains on disposition of U.S. stocks by foreign beneficiaries are generally not subject to U.S. tax – the U.S. does not tax capital gains of nonresident aliens on U.S. securities (with exceptions for U.S. real property interests, which include stock in U.S. real property holding corporations).
The estate tax exposure on the children’s death: U.S. stocks owned by a nonresident alien at death are subject to U.S. estate tax. U.S. corporate bonds may or may not be subject to estate tax depending on the specific type (portfolio debt is exempt).
Structuring to Avoid the $60,000 Exemption Trap
The most painful estate tax problem in cross-border families is that nonresident aliens have only a $60,000 estate tax exemption on U.S.-situs property. A foreign child who inherits $500,000 of U.S. real estate and dies before selling it leaves their own estate to pay U.S. estate tax on $440,000 of value at rates up to 40 percent – a $150,000+ tax bill for the next generation.
Planning techniques to mitigate this include:
Holding U.S. real estate through a non-U.S. corporation. The foreign child inherits shares of the foreign corporation rather than the U.S. real estate directly. Foreign corporate stock is generally not U.S.-situs for estate tax purposes. Income tax consequences of the corporate structure must be evaluated separately.
Holding U.S. real estate through a U.S. LLC owned by a non-U.S. trust. Carefully structured, the LLC can shift situs for estate tax purposes. The structuring is complex and requires ongoing compliance.
Lifetime gifts during the parent’s life. Annual exclusion gifts and exemption-using gifts can transfer wealth before the parent’s death without triggering estate tax. The recipient’s later estate tax exposure on the gifted asset still applies.
Insurance products and trust structures designed specifically for cross-border wealth transfer.
The Foreign Country’s Tax
The U.S. tax is one piece. The children’s country of residence may impose its own inheritance tax, gift tax, wealth tax, or income tax on the inheritance. Coordination across the two systems matters.
Some countries have estate or inheritance tax treaties with the U.S. that coordinate the tax treatment and prevent double taxation. Most countries do not – the U.S. has estate tax treaties with only about 15 countries.
For inheritances flowing to countries without an estate tax treaty, the planning needs to account for potential double taxation – U.S. estate tax on the parent’s estate, plus the foreign country’s inheritance tax on the children’s receipt.
Three Steps for Cross-Border Estate Planning
First, identify every U.S. asset and every non-U.S. asset. The estate plan turns on situs and ownership structure.
Second, evaluate the marital deduction situation. If a surviving spouse is foreign, a QDOT may be needed.
Third, structure U.S.-situs assets to reduce the next generation’s estate tax exposure. Foreign corporations, U.S. LLCs, lifetime gifts, and trust structures all have roles depending on the specific facts.
Get the Plan Right
After 32 years of cross-border tax work, the estate planning for U.S. citizens with foreign heirs is one of the highest-impact areas where careful structuring saves substantial tax. Contact the Law Offices of Darrin T. Mish, P.A. at (813) 229-7100. We coordinate the U.S. estate plan with the foreign country’s tax system and structure the wealth transfer to minimize tax across generations.