IRS Reporting Requirements for Offshore Trusts

U.S. persons who own an offshore trust, and those who receive distributions from one, must file information returns with the IRS and the Treasury Department. The owner files Form 3520 each year and the foreign trust files Form 3520-A. The trust’s foreign accounts go on FinCEN Form 114, the FBAR. Foreign assets above the reporting thresholds go on Form 8938.

The government requires full transparency about offshore holdings because foreign accounts fall outside the domestic information-reporting system that banks and brokerages provide automatically. An offshore trust is legal under both federal and state law. Failing to file these returns is a separate violation that does not make the trust itself unlawful.

Form 3520

Form 3520 must be filed by any U.S. person who creates a foreign trust, transfers property to it, or receives a distribution from it. For asset protection trust settlors, Form 3520 is required in the year the trust is created and in every subsequent year in which the settlor is treated as the owner.

The form reports the trust’s existence, the settlor’s relationship to the trust, and any transactions during the year, including transfers to the trust and distributions from it. It also reports the trust’s assets and the U.S. person’s ownership percentage.

Form 3520 is due on the same date as the taxpayer’s income tax return, including extensions. For calendar-year individuals, the standard due date is April 15, with an automatic extension to October 15 if the taxpayer files Form 4868. The Form 3520 extension follows the income tax extension but does not extend beyond October 15 even if the taxpayer receives a discretionary extension.

A missed or incomplete Form 3520 carries a penalty of at least $10,000, and as much as 35% of the value transferred. If the failure continues more than 90 days after the IRS mails notice of it, another $10,000 applies for each 30-day period, until the penalties reach the amount that should have been reported.

Form 3520-A

Form 3520-A is the information return filed by the foreign trust itself, not the U.S. owner. If the foreign trustee does not file it, the U.S. owner prepares a substitute Form 3520-A and files it as part of Form 3520. If the owner does not file the substitute, the penalty for the trust’s failure falls on the owner.

The form reports the trust’s balance sheet, income statement, and a schedule of U.S. beneficiaries and their interests. It requires the trust to provide a Foreign Grantor Trust Owner Statement and a Foreign Grantor Trust Beneficiary Statement to each U.S. person who is treated as an owner or who received a distribution.

Form 3520-A is due March 15 for calendar-year trusts, with a six-month extension available by filing Form 7004. The March 15 due date is earlier than the Form 3520 due date, so the U.S. owner and the offshore trustee have to coordinate. The trustee’s accountant prepares Form 3520-A and sends it to the U.S. owner’s CPA, along with the Foreign Grantor Trust Owner Statement required for the settlor’s Form 3520 and 3520-A filings.

A missed Form 3520-A carries a penalty of at least $10,000, and as much as 5% of the trust assets the U.S. person is treated as owning. This penalty is assessed separately from the Form 3520 penalty. A U.S. person who misses both forms faces a minimum combined penalty of $20,000 per year.

Does an Offshore Trust Need Its Own EIN?

A foreign grantor trust requires its own Employer Identification Number to file Form 3520-A. Only an EIN, not the U.S. owner’s Social Security number, may be used to identify the trust on Line 1b of the form. The same EIN is required when filing Form 7004 to request a filing extension.

Domestic grantor trusts generally use the grantor’s Social Security number for tax reporting and do not need a separate EIN. A foreign grantor trust is treated the same way for income tax purposes, with trust income flowing through to the grantor’s personal return. The information-reporting forms, however, require the trust to carry its own identification number.

Filing Form 3520-A without an EIN creates processing problems at the IRS. The IRS cannot match the return to the trust, which triggers follow-up notices and potential penalty assessments even when the underlying information is correct. A trust whose legal residence, main place of business, and office or agency are all outside the United States and its territories cannot use the online EIN application. The trustee applies by phone instead, at 267-941-1099, the IRS line for international applicants.

FinCEN Form 114 (FBAR)

FinCEN Form 114 must be filed by any U.S. person who has a financial interest in or signature authority over foreign financial accounts. The filing threshold is $10,000 in aggregate value at any point during the calendar year. A settlor treated as the trust’s owner under the grantor trust rules reports the trust’s foreign accounts on the FBAR. Accounts held by entities the trust owns, such as an offshore LLC, are reported the same way.

The FBAR is not filed with the IRS. It is filed electronically with the Financial Crimes Enforcement Network (FinCEN), a bureau within the U.S. Treasury Department. The filing system is separate from the IRS e-file system.

The FBAR is due April 15 with an automatic extension to October 15. No additional extension is available.

The FBAR carries the most severe penalties of all the offshore trust filings. A non-willful failure to file carries a penalty of up to $16,536 per unfiled report, a statutory $10,000 amount adjusted for inflation. A willful failure raises the maximum to 50% of the account balance, or to $165,353 if that is larger, assessed per account per year. Criminal penalties, including imprisonment, apply to willful FBAR violations.

Form 8938

Form 8938, Statement of Specified Foreign Financial Assets, must be filed by U.S. persons whose specified foreign financial assets exceed certain thresholds. Unmarried taxpayers in the United States must file when foreign financial assets exceed $50,000 at year-end or $75,000 at any point during the year. Thresholds are higher for married couples filing jointly and for U.S. persons living abroad.

Form 8938 is filed as an attachment to Form 1040. It reports the same types of foreign financial assets reported on the FBAR but serves a different statutory purpose and is administered by the IRS rather than FinCEN. Filing one form does not satisfy the obligation to file the other.

The owner does not have to list the trust’s assets on Form 8938 when Form 3520 and Form 3520-A are both filed on time. This exception applies only if the owner’s Form 8938 reports those two filings. Foreign accounts the owner holds outside the trust are still reported.

Missing Form 8938 carries a $10,000 penalty. Additional penalties up to $50,000 apply after the IRS issues a noncompliance notice.

Filing Summary

Federal law requires four returns from an offshore trust and its U.S. owner, with penalties under three different statutes, so a single missed year can produce four separate penalties.

Form	Filed With	Due Date	Extension	Penalty
Form 3520	IRS	April 15	October 15 (with income tax extension)	Greater of $10,000 or 35% of the amount transferred
Form 3520-A	IRS	March 15	September 15 (Form 7004)	Greater of $10,000 or 5% of assets treated as owned
FBAR (FinCEN 114)	FinCEN (Treasury)	April 15	October 15 (automatic)	Up to $16,536/report (non-willful); up to 50% of balance or $165,353, whichever is greater (willful)
Form 8938	IRS (with Form 1040)	April 15	October 15 (with income tax extension)	$10,000

Schedule B and Income Tax Return

The settlor of a foreign grantor trust must check the box on Schedule B, Part III of Form 1040 indicating an interest in or signature authority over a foreign financial account. The trust’s income, gains, losses, and deductions are reported on the settlor’s personal return as if the assets were held directly. The trust does not file a separate U.S. income tax return.

The offshore trust is tax-neutral. There is no deferral of income, no preferential tax rate, and no reduction in tax liability.

Additional Forms

An offshore trust that holds foreign entities may trigger IRS filings beyond the four core returns. Where the trust owns a foreign corporation, the U.S. owner files Form 5471 each year. A foreign limited liability company the trust owns also requires Form 5471, because U.S. tax law treats that company as a corporation by default when none of its members is personally liable for its debts. Electing on Form 8832 to have the company disregarded replaces Form 5471 with an annual Form 8858.

Each form applies only when the trust holds a specific type of asset or entity. A CPA with foreign trust experience identifies which of these forms the trust’s holdings require.

Practical Compliance

General tax practitioners rarely handle Forms 3520, 3520-A, or FBAR filings. Errors on these forms trigger penalties even when the underlying information is straightforward. The work requires a CPA with specific foreign trust experience.

Annual compliance cost for these filings runs $2,000 to $3,000, separate from regular income tax preparation. That cost is part of the total annual expense of maintaining an offshore trust. The offshore trustee coordinates with the U.S. owner’s CPA to provide the financial data needed for Form 3520-A and the owner’s statements. This coordination is included in the trustee’s annual fee.

A properly reported offshore trust is more defensible in litigation than one that surfaces for the first time during discovery. The filing history itself becomes evidence of a legitimate asset protection purpose.