IRS Reporting Requirements for Offshore Trusts

U.S. persons who create or benefit from an offshore trust must file several annual information returns with the IRS and the U.S. Treasury Department. The core filings are Form 3520, Form 3520-A, FinCEN Form 114 (FBAR), and potentially Form 8938. Each is filed separately from the settlor’s regular income tax return and carries severe penalties for noncompliance.

The government requires full transparency about offshore holdings because foreign accounts fall outside the domestic information-reporting system that banks and brokerages provide automatically. Proper reporting satisfies every federal requirement, and the trust is legal under both federal and state law.

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 or 5% of trust assets owned by the U.S. person, whichever is greater. After the IRS issues a noncompliance notice, additional penalties of $10,000 per 30-day period may apply, up to $50,000.

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 Form 3520-A, the U.S. owner faces penalties for the trust’s noncompliance.

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 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, which creates a coordination requirement between the U.S. owner and the offshore trustee. The trustee’s accountant prepares Form 3520-A and transmits 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 or 5% of trust assets owned by the U.S. person, whichever is greater. This penalty is assessed separately from the Form 3520 penalty, meaning 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 agency cannot match the return to the trust, which triggers follow-up notices and potential penalty assessments even when the underlying information is correct. A foreign trust can apply for an EIN online at IRS.gov/EIN or by phone at 267-941-1099 if the trust’s principal office is outside the United States.

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. For offshore trust settlors, the FBAR is required whenever the trust or its underlying entities—such as an offshore LLC—hold bank or brokerage accounts outside the United States.

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 entirely 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.

FBAR penalties are the most severe of all offshore trust filing requirements. A non-willful failure to file carries a penalty of up to $10,000 per account per year. A willful failure carries a penalty equal to $100,000 or 50% of the account balance, whichever is greater, 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.

One exception applies: if the U.S. owner timely files Form 3520 and the trust timely files Form 3520-A, the U.S. owner does not need to separately report the trust’s assets on Form 8938. Foreign financial accounts held outside the trust structure must still be 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

Four annual filings apply to most offshore trust arrangements, each with different agencies, deadlines, and penalty structures.

Form	Filed With	Due Date	Extension	Minimum Penalty
Form 3520	IRS	April 15	October 15 (with income tax extension)	Greater of $10,000 or 5% of trust assets
Form 3520-A	IRS	March 15	September 15 (Form 7004)	Greater of $10,000 or 5% of trust assets
FBAR (FinCEN 114)	FinCEN (Treasury)	April 15	October 15 (automatic)	$10,000/account (non-willful); $100,000 or 50% of balance (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. The reporting burden is real, but the structure provides no tax benefit whatsoever.

Additional Forms

An offshore trust that holds foreign entities may trigger IRS filings beyond the four core returns. If the trust owns a foreign corporation, Form 5471 may apply. If the trust owns a foreign disregarded entity such as a single-member LLC, Form 8858 is required. If the trust makes an entity classification election, Form 8832 is used.

Each form applies only when the trust holds a specific type of asset or entity. A CPA with foreign trust experience will identify which forms apply based on the trust’s configuration.

Practical Compliance

General tax practitioners rarely handle Forms 3520, 3520-A, or FBAR filings, and 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 $4,000, 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, and this coordination is included in the trustee’s annual fee.

A properly reported offshore trust is far more defensible in litigation than one that surfaces for the first time during discovery. The filing history itself becomes evidence that the trust was established for legitimate asset protection purposes, not to conceal assets.