The $60K Estate Tax Trap for Non-US Citizens Holding US Assets

Hui-chin Chen, CFP®, is the managing partner of Jade & Cowry and has spent her career working with globally mobile families across Asia-Pacific; including her own, as the spouse of a US diplomat who has lived across multiple countries and tax systems. She is one of a small number of practitioners who understands both the technical US tax obligations that reach across borders and the cultural dynamics that make compliance so difficult to achieve.

This episode covers the compliance traps that consistently catch non-US citizens, US-connected individuals, and globally mobile families who never anticipated owing anything to the IRS.

Key Takeaways

The $60,000 US Estate Tax Threshold for Non-Citizens

The US estate tax exemption for non-resident aliens is $60,000. US citizens receive $13.99 million. The threshold has never been indexed for inflation. Any US situs assets (stocks, real estate, RSUs from a US employer) above that amount are taxed at rates up to 40% upon death. A non-US citizen holding $500,000 in employer equity faces a $176,000 bill for their surviving family. Most non-citizens holding US assets have no awareness this exposure exists until it is too late to plan around it.

The Non-US Spouse Filing Election Trap

A US citizen filing jointly with a non-US spouse to reduce tax liability pulls that spouse's worldwide income, foreign accounts, and financial relationships into the US reporting system. A spouse with a foreign business, family joint accounts, or signatory authority on a family holding company now has FBAR and FATCA obligations they did not create and may not know about. The one-year tax saving consistently costs more to unwind than it was worth.

Joint Accounts, Family Business Signatory Authority, and FBAR

In many Asian families, joint accounts with parents and signatory authority on family business accounts are standard estate planning tools. A US citizen or green card holder who becomes a signatory on a parent's account (even informally) has created a reportable foreign financial interest under FBAR rules. The reporting obligation exists regardless of whether the account holds their money.

Planned US Citizenship and What It Obligates the Whole Family To

When affluent Asian families acquire US citizenship for the next generation without concurrent financial restructuring, that generation inherits a passport alongside years of unfiled returns, undisclosed accounts, and family business structures that trigger reporting obligations they have no framework to understand. The planning has to begin when the citizenship decision is made, not when the compliance problem surfaces.

Frequently Asked Questions

Who owes US estate tax if they are not a US citizen?

Non-US citizens holding US situs assets (US stocks, real estate, employer equity) are subject to US estate tax upon death. The exemption is $60,000. Assets above that are taxed at up to 40%, regardless of whether the individual ever lived in the US.

Does the US have estate tax treaties with Asian countries?

Very few. The US has estate tax treaties with approximately 16 countries, most of them European. Japan has one. Singapore, Malaysia, China, South Korea, and India do not. Without a treaty, the $60,000 threshold and 40% rate apply in full.

Can a non-US spouse be pulled into the US tax system through their partner's filing?

Yes. Joint filing elections and dependent spouse elections bring the non-US spouse's worldwide income and foreign financial accounts into the US tax and reporting system. Unwinding these elections requires amended returns and, in some cases, creates obligations that cannot be cleanly removed.

How early should cross-border tax planning begin before a move?

Hui-chin recommends four to six months minimum, longer for anyone with family account involvement, business signatory authority, or joint financial structures. The audit needs to cover every account where the individual has any form of access, not only accounts held in their name.

Find a Vetted Expat Advisor

• Find a cross-border financial advisor or tax professional specializing in US expat investing and tax planning at the Passport to Wealth directory
• Qualified professionals serving US expats are welcome to apply to join the directory