Form 3520: Reporting Foreign Trusts and Gifts

Key Takeaways

• Form 3520 reports U.S. dealings with foreign trusts and large gifts from foreign persons.
• A foreign gift over 100,000 dollars from an individual triggers reporting for the year.
• Filers often forget the gift trigger, not just the foreign trust trigger.
• The penalty can reach 35 percent of the unreported transfer or distribution.

What Form 3520 Is

Form 3520 is titled the Annual Return To Report Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts. The IRS requires it under Internal Revenue Code section 6048, which mandates reporting of transfers to, ownership of, and distributions from foreign trusts.

It captures four broad situations. You create or transfer money or property to a foreign trust. You are treated as the U.S. owner of a foreign trust under the grantor trust rules. You receive a distribution from a foreign trust. Or you receive a large gift or bequest from a foreign individual or foreign estate. A separate form is required for transactions with each foreign trust.

The Intuition

Foreign trusts sit outside the U.S. system, so without reporting they could shelter income and shift wealth invisibly. Section 6048 forces sunlight onto those flows. The form lets the IRS see who funded a foreign trust, who controls it, and what came back out.

The gift trigger surprises many filers. A large inheritance from a relative abroad is usually not taxable income, yet it still must be reported on Form 3520 once it crosses a dollar threshold. The reporting is about transparency, not necessarily about tax owed.

How It Works

Form 3520 has four parts, each matching a reporting trigger. You file it by the due date of your income tax return, generally April 15 for individuals, with extensions following the income tax return.

Part I    Transfers by a U.S. person to a foreign trust
Part II   U.S. owner of a foreign trust (grantor trust rules)
Part III  Distributions to a U.S. person from a foreign trust
Part IV   Large gifts or bequests from foreign persons

The gift threshold differs by source. Gifts or bequests from a foreign individual or foreign estate are reported once the total for the year exceeds 100,000 dollars. Gifts from foreign corporations or foreign partnerships use a much lower threshold, around 19,000 dollars and adjusted yearly for inflation. Distributions from a foreign trust without a proper statement can be taxed under a default method that applies an interest charge on accumulated income.

Worked Example

Suppose a U.S. citizen receives a 250,000 dollar inheritance from a grandparent who lived and died abroad as a noncitizen.

The inheritance itself is generally not U.S. taxable income to the recipient. But because the gift from a foreign individual exceeds 100,000 dollars in the year, the recipient must report it in Part IV of Form 3520.

Foreign gift received     = 250,000 USD
Reporting threshold       = 100,000 USD
Result                    = Part IV reporting required
Income tax on the gift    = generally none

No tax is due, yet skipping the form can trigger a penalty calculated on the unreported amount.

Common Mistakes

1. Thinking a tax-free gift needs no reporting. A foreign inheritance can be free of income tax and still require Form 3520. The two questions are separate.

2. Missing the lower entity threshold. Gifts from foreign corporations or partnerships use a far smaller threshold than the 100,000 dollar individual threshold.

3. Filing one form for several trusts. A separate Form 3520 is required for each foreign trust. Combining them is incorrect.

4. Relying on the default distribution method. Without a foreign nongrantor trust beneficiary statement, distributions can be taxed under the throwback rules with an interest charge.

5. Underestimating the penalty. A failure can trigger a penalty of 35 percent of the transfer or distribution, or 5 percent per month of the foreign gift amount, which often dwarfs any actual tax.

Frequently Asked Questions

What is Form 3520 in simple terms? Form 3520 is an IRS form you file to report your dealings with a foreign trust or a large gift you received from someone abroad. It is an information return, so filing it does not by itself create a tax bill.

How does Form 3520 affect investment decisions? Anyone investing through a foreign trust or expecting a foreign inheritance should plan for the reporting and possible throwback tax on accumulated trust income. Knowing the rules early helps avoid the interest charge that applies to poorly documented distributions.

What is a real-world example of Form 3520? A U.S. citizen who inherits 250,000 dollars from a foreign grandparent owes no income tax on the gift but must report it in Part IV because it exceeds the 100,000 dollar foreign gift threshold.

How can investors avoid Form 3520 penalties? Track foreign gifts and bequests across the full year, file a separate form for each trust, and obtain a beneficiary statement so distributions are not taxed under the default method. A cross-border tax adviser can confirm which triggers apply.

How is Form 3520 different from Form 3520-A? Form 3520 is filed by the U.S. person to report their own transactions and gifts, while Form 3520-A is filed by the foreign trust itself to report on its U.S. owner. A U.S. owner often deals with both.

Sources

1. IRS. "About Form 3520, Annual Return To Report Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts." https://www.irs.gov/forms-pubs/about-form-3520
2. IRS. "Instructions for Form 3520 (12/2025)." https://www.irs.gov/instructions/i3520
3. IRS. "Foreign trust reporting requirements and tax consequences." https://www.irs.gov/businesses/international-businesses/foreign-trust-reporting-requirements-and-tax-consequences
4. Cornell Legal Information Institute. "26 U.S.C. 6048 - Information with respect to certain foreign trusts." https://www.law.cornell.edu/uscode/text/26/6048

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.