What Is a Foreign Express Trust: Tests, Filings, and Penalties

A foreign express trust is a trust that someone deliberately set up under a written instrument and that the IRS classifies as foreign because it fails one or both of the tests in Section 7701 for domestic status. The label matters because it drops the U.S. people connected to the trust — the person who funded it, the person who owns it for tax purposes, and any U.S. beneficiary — into a separate tax regime with its own income rules, its own reporting forms, and penalties that start at 35% of the amounts involved.

The “Express” Part: A Trust Someone Meant to Create

An express trust is one created on purpose, in contrast to constructive trusts a court imposes to fix an unfair result or resulting trusts that arise by implication from someone’s conduct. Four elements have to come together: a clear intention to create the trust, identifiable property to fund it, named or identifiable beneficiaries, and a trustee to manage the assets. Miss any one of them and no valid trust exists.

The intention is usually documented in a written trust deed or agreement that names the trustee, identifies the beneficiaries, sets out the trustee’s powers, and controls how and when distributions happen. Once the settlor transfers assets in, legal ownership shifts to the trustee.

The “Foreign” Part: Why the IRS Classifies It That Way

Where the trust document was signed and where the settlor lives are not what determine foreign status. Two statutory tests do, and a trust has to pass both to be domestic. Fail either one, and it’s foreign.¹

The Court Test

A court within the 50 states or the District of Columbia must be able to exercise primary supervision over the trust’s administration. Courts in U.S. territories, U.S. possessions, or foreign countries don’t count.²

The Control Test

One or more U.S. persons must have authority to control all substantial decisions of the trust.¹ Substantial decisions include whether and when to distribute, how much to distribute, selecting beneficiaries, ending the trust, investment decisions, litigation choices, and adding or removing trustees.² Routine bookkeeping and executing decisions someone else has already made are ministerial and don’t count. If a non-U.S. person controls even one substantial decision and no U.S. person can override it, the trust is foreign.

The Grantor Trust Result Most People Don’t Expect

This is where planning around a foreign express trust usually goes wrong. If a U.S. person transfers property to a foreign trust and the trust has any U.S. beneficiary, the IRS treats the transferor as the owner of the trust for income tax purposes.³ Every dollar of trust income flows onto the U.S. grantor’s personal return, whether or not any distributions actually go out.

You can’t defer U.S. income tax by moving assets into a foreign trust for U.S. beneficiaries. Set one up for your U.S. citizen children and you owe tax on the trust’s income each year, even if the trustee reinvests all of it.

Making the trust irrevocable doesn’t change this. Section 679 applies regardless of whether the settlor kept any power to amend or revoke. The trigger is a U.S. transferor plus a U.S. beneficiary, not the settlor’s control.

The Throwback Tax When Accumulated Income Comes Out

When a foreign trust accumulates income for several years and then makes a large distribution to a U.S. beneficiary, the accumulation distribution rules apply. The income is spread back over the years it was earned and taxed at the beneficiary’s rates for those years, plus an interest charge computed using IRS underpayment rates for the full accumulation period.⁴

The interest charge is not deductible.⁴ After 15 or 20 years of accumulation, the combined tax and interest on a single distribution can eat a startling share of what actually reaches the beneficiary. That’s by design; the rule exists to stop indefinite deferral.

What You Have to File

Being a grantor, owner, or beneficiary of a foreign express trust triggers overlapping reports, each with its own form and deadline.

Form 3520

A U.S. person files Form 3520 to report the creation of a foreign trust, transfers of money or property to one, the death of a U.S. citizen or resident who was treated as the trust’s owner or whose estate included trust assets, and distributions received from a foreign trust by a U.S. beneficiary.⁵ It’s due by the 15th day of the fourth month after your tax year ends — April 15 for most calendar-year filers. U.S. persons living and working abroad get to the 15th day of the sixth month, and an extension of your income tax return extends Form 3520 to October 15.⁶

Form 3520-A

A foreign trust with a U.S. owner files Form 3520-A each year to account for its activities. The U.S. owner is personally responsible for making sure it gets filed and that annual statements go to U.S. owners and beneficiaries. If the foreign trustee refuses, the U.S. owner has to complete a substitute Form 3520-A and attach it to their own Form 3520. The return is due the 15th day of the third month after the trust’s tax year ends — March 15 for a calendar-year trust. Form 7004 gets an automatic extension, but extending the owner’s personal return does not extend this one.⁷

FBAR

If the trust holds financial accounts outside the United States and a U.S. person has a financial interest in or signature authority over them, that person files an FBAR (FinCEN Report 114) when the aggregate value of all foreign financial accounts exceeds $10,000 at any point in the calendar year.⁸ The FBAR goes to FinCEN, not the IRS, and runs on its own deadline.

Form 8938

FATCA adds Form 8938 for U.S. taxpayers whose specified foreign financial assets, including interests in foreign trusts, exceed certain thresholds. Living in the United States, single filers report at $50,000 on the last day of the year or $75,000 at any point during it; married filing jointly, those double to $100,000 and $150,000. Living abroad, the thresholds rise to $200,000 and $300,000 for single filers and $400,000 and $600,000 for joint filers.⁹

What Missing Those Filings Costs

Foreign trust penalties are heavy and they stack.

Failure to report the creation of a foreign trust or a transfer to one carries a penalty of 35% of the gross value of the property involved, and failure to report distributions received from a foreign trust carries 35% of the gross distribution.¹⁰ The initial penalty is the greater of $10,000 or 35% of the reportable amount.⁶ If the IRS sends a notice and you still don’t file within 90 days, another $10,000 accrues every 30 days, and the total can reach 100% of the gross reportable amount.

For Form 3520-A, the penalty is 5% of the gross value of the portion of the trust’s assets treated as owned by the U.S. person, assessed for each missing year, with the same $10,000-per-30-days continuation penalty after IRS notice.¹⁰

On the FBAR side, non-willful failures carry a statutory penalty of up to $10,000 per report, adjusted for inflation. Willful violations jump to the greater of $100,000 (also inflation-adjusted) or 50% of the account balance at the time of the violation, with criminal prosecution possible in extreme cases.¹¹

One more consequence is easy to miss. If you don’t file a complete Form 3520, the statute of limitations on any tax related to those trust transactions never starts running. It stays open until three years after you actually report.⁶ The IRS can come back to those years indefinitely.

Why People Still Use Them

Given all that, foreign express trusts still have legitimate uses. Cross-border families use them to hold assets in one jurisdiction while distributing to beneficiaries in another under a single structure. Settlors with property in countries that impose forced heirship rules use trusts in jurisdictions that don’t recognize those claims to keep their intended distribution plan intact. Charitable giving directed to specific countries and asset protection under regimes with short creditor-claim windows or no recognition of U.S. judgments are other common motivations.

Trusts That Escape the Full Regime

Not every foreign trust triggers the full compliance load. Certain Canadian registered retirement savings plans and registered retirement income funds are exempt from Form 3520-A. Tax-favored foreign trusts operated exclusively or almost exclusively for pension, retirement, medical, disability, or educational benefits can qualify for exemptions under IRS guidance.⁷ If your foreign trust is really an employer-sponsored retirement plan, check whether it fits an exemption before assuming you owe the full filing package.

1
Office of the Law Revision Counsel. 26 USC 7701 – Definitions
2
eCFR. 26 CFR 301.7701-7 – Trusts, Domestic and Foreign
3
Office of the Law Revision Counsel. 26 USC 679 – Foreign Trusts Having One or More United States Beneficiaries
4
Office of the Law Revision Counsel. 26 USC 668 – Interest Charge on Accumulation Distributions From Foreign Trusts
5
Office of the Law Revision Counsel. 26 USC 6048 – Information With Respect to Certain Foreign Trusts
6
Internal Revenue Service. Instructions for Form 3520
7
Internal Revenue Service. Instructions for Form 3520-A Annual Information Return of Foreign Trust With a U.S. Owner
8
FinCEN.gov. Report Foreign Bank and Financial Accounts
9
Internal Revenue Service. Summary of FATCA Reporting for U.S. Taxpayers
10
GovInfo. 26 USC 6677 – Failure to File Information With Respect to Certain Foreign Trusts
11
Office of the Law Revision Counsel. 31 USC 5321 – Civil Penalties