Foreign Gifts & Form 3520: What to Report

If a relative overseas wired you money for a house deposit, or you inherited assets from a parent abroad, you may have a U.S. filing obligation you have never heard of. Foreign gift reporting is one of the most overlooked corners of the U.S. tax system, and getting it wrong can be far more expensive than the gift itself. The good news is that reporting a foreign gift usually does not cost you a dime in tax. The bad news is that failing to report one can trigger penalties that run into the tens of thousands of dollars.

Foreign gift reporting is how a U.S. person tells the IRS, on Form 3520, that they received large gifts or bequests from foreign individuals, estates, corporations, or partnerships. It is an informational filing, not a tax bill, but missing it can trigger steep penalties.

When U.S. persons must report foreign gifts and inheritances

The rule applies to “U.S. persons,” which includes U.S. citizens, green card holders, and residents who meet the substantial presence test, as well as U.S. estates and certain domestic trusts. If you fall into one of these categories and you receive a large gift or inheritance from a foreign source, the IRS wants to know about it, even though the money or property itself is generally not taxable income to you.

Two points trip people up. First, a gift from a U.S. relative living abroad is still a U.S. gift, not a foreign one, so it follows different rules. Second, the test looks at the source of the funds, not just where your benefactor happens to live. Money routed through an offshore account on behalf of a foreign relative is still a foreign gift. Because this area overlaps heavily with international & expat tax, it pays to map out your facts before assuming you are off the hook.

Form 3520 basics

Form 3520, the Annual Return To Report Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts, is the workhorse here. Part IV is the section that deals specifically with large gifts and bequests from foreign persons. You report the date received, a description of the property, and the fair market value in U.S. dollars. You can review the official instructions on the IRS Form 3520 page.

Crucially, Form 3520 is filed separately from your income tax return. It is mailed to a dedicated IRS service center rather than attached to your Form 1040, and each U.S. person who receives a reportable gift files their own form. Spouses can sometimes file jointly, but the safest default is one form per recipient unless a tax professional confirms otherwise.

The different thresholds: foreign person vs. foreign corporation or partnership

This is the part that causes the most confusion, because the reporting thresholds differ depending on who the gift came from, and they are periodically adjusted by the IRS. Always confirm the current figures on IRS.gov before you rely on them.

For gifts or bequests from a foreign individual or a foreign estate, you generally must report once the total you receive from that source during the year exceeds a relatively high dollar threshold (historically in the six-figure range, around the $100,000 mark, but verify the current amount). You aggregate gifts from related parties, so several smaller gifts from one family abroad can add up past the line.

For gifts from a foreign corporation or foreign partnership, the threshold is dramatically lower, set at a few thousand dollars and adjusted annually for inflation. Because that figure is so much smaller, gifts from foreign entities are far more likely to be reportable than gifts from individuals. The exact current thresholds for both categories should always be confirmed against the latest IRS guidance, as they do change.

It is reporting, not necessarily tax

One of the biggest sources of anxiety is the fear that reporting a gift means handing a slice of it to the IRS. In most cases, it does not. A genuine gift or inheritance received by a U.S. person is generally not taxable income, and any U.S. gift tax liability falls on the donor, not the recipient. With a foreign donor outside the U.S. system, there is usually no U.S. gift tax at all.

So why bother? Foreign gift reporting exists so the IRS can trace large inflows of money and distinguish genuine gifts from unreported income or hidden offshore accounts. Treat it as a transparency exercise. Filing protects you by documenting that the funds were a gift, which can matter enormously if your finances are ever examined.

Deadlines tied to your return

Form 3520 is due on the same date as your individual income tax return, including extensions. For most people that means the standard April deadline, pushed to October if you properly extend your 1040. Extending your income tax return also extends the Form 3520 deadline, but you must actually file a valid extension, not simply assume one.

Mark the date carefully. Because the form is mailed separately and is easy to forget, plenty of taxpayers file their 1040 on time and then overlook the 3520 entirely. The deadline is not a soft target; it is the trigger point for penalties.

The steep penalties for late or non-filing

Here is where foreign gift reporting gets serious. For unreported foreign gifts, the IRS can impose a penalty of 5% of the value of the gift for each month the failure continues, capped at 25% of the gift. On a $400,000 inheritance, that ceiling alone is $100,000, for a form that would have cost you nothing in tax to file on time.

Penalties connected to foreign trust transactions reported on Form 3520 can be even harsher, often calculated as a percentage of the amount transferred or distributed. The IRS has historically assessed these penalties automatically when forms are filed late, which is why so many cases end up in IRS & tax resolution. The cost of a missed deadline is wildly out of proportion to the simplicity of the filing itself.

Reasonable cause relief

If you missed a filing, you are not automatically doomed. The penalties can be abated if you can show “reasonable cause,” meaning you acted in good faith and the failure was not due to willful neglect. Reasonable cause is a facts-and-circumstances test: reliance on a qualified advisor who was unaware of the facts, a serious illness, or a genuine and reasonable misunderstanding of an obscure rule can all support a claim.

What reasonable cause is not is “I didn’t know the form existed.” Ignorance alone rarely succeeds. The strongest abatement requests are built on a clear, documented narrative and filed proactively, ideally with the late form rather than after the IRS comes knocking. Because the IRS’s automatic assessment practice in this area has drawn criticism and continues to evolve, professional help here often pays for itself many times over.

A note on foreign trusts

Form 3520 is not only about gifts. It also captures transactions with foreign trusts: transfers to them, distributions from them, and, in some cases, being treated as the owner of one. If you have any involvement with an offshore trust, a related form, Form 3520-A, may also be required, usually filed by the trust itself with a separate, earlier deadline. The IRS’s guidance on gifts from foreign persons is a useful starting point, but trust rules are genuinely complex and warrant tailored advice.

Foreign gift reporting checklist

Use this quick checklist when working through your foreign gift reporting obligations:

• Confirm you are a U.S. person for tax purposes (citizen, green card holder, or resident).
• Identify the source of each gift: foreign individual, foreign estate, foreign corporation, or foreign partnership.
• Total all gifts from each source and from related parties for the year.
• Check the current applicable threshold on IRS.gov, as figures differ by source and change over time.
• Convert the value of any non-cash gifts to U.S. dollars at fair market value.
• File Form 3520 by your income tax return deadline, including extensions.
• Keep documentation: bank records, a letter from the donor, and proof the funds were a gift.
• Check whether any foreign trust involvement also requires Form 3520-A.

Mistakes to avoid

The most common errors are predictable and preventable:

• Assuming “no tax due” means “no filing required.” The two are separate. A gift can be tax-free and still reportable.
• Applying the wrong threshold. Using the high individual threshold for a gift that actually came from a foreign company can leave a reportable gift unreported.
• Forgetting to aggregate. Several smaller gifts from related foreign relatives can cross the threshold together.
• Attaching it to your 1040. Form 3520 is mailed separately to its own service center.
• Missing the deadline by assuming an extension. Only a validly filed extension moves the date.
• Waiting for the IRS to find you. Proactive late filing with a reasonable cause statement is almost always stronger than a reactive one.

Frequently asked questions

Do I pay tax on a foreign gift I receive?

Generally no. A genuine gift or inheritance received by a U.S. person is not treated as taxable income, and there is usually no U.S. gift tax on the recipient. The obligation is informational reporting, not payment, though related income such as interest the money later earns is taxable.

What triggers foreign gift reporting on Form 3520?

Foreign gift reporting is triggered when a U.S. person receives gifts or bequests above the relevant threshold from a foreign person, estate, corporation, or partnership during the tax year. The threshold is much higher for individuals and estates than for foreign corporations and partnerships, so always confirm the current figures on IRS.gov.

What happens if I file Form 3520 late?

The IRS can assess a penalty of up to 25% of the gift’s value for unreported foreign gifts, and even more for certain foreign trust transactions. You may be able to have the penalty abated by establishing reasonable cause, but it is far easier to file on time.

Is a gift from a U.S. citizen living abroad a foreign gift?

No. The test is the donor’s status as a U.S. or foreign person, not their physical location. A gift from a U.S. citizen or green card holder living overseas is a domestic gift and follows the regular gift tax rules, where any tax liability sits with the donor.

Can my spouse and I file one Form 3520 together?

In some circumstances spouses can file a joint Form 3520, but the rules are specific. When in doubt, each U.S. person who received a reportable gift should file separately, or have a professional confirm whether a joint filing is appropriate for your situation.

Get expert help with your foreign gift reporting

Foreign gifts and inheritances are a classic case where a free, no-tax filing protects you and a missed deadline becomes an expensive problem. If you have received money or property from abroad, or you are worried about a form you should have filed in the past, Tranzesta’s U.S. and U.K. tax specialists can review your situation, prepare Form 3520 correctly, and handle reasonable cause relief if needed. Book a free consultation and get clarity before the IRS gets involved.

Disclaimer: This article is for general informational purposes only and does not constitute tax or legal advice. Tax laws, thresholds, and reporting requirements change and vary by individual circumstance. Always confirm current Form 3520 thresholds and rules on IRS.gov and consult a qualified tax professional before acting.