IRS Form 3520: Why You Must Report Foreign Gifts of More Than $100,000

On Behalf of the Law Offices of Sammy Kim

Updated October 6, 2026

If you receive a large gift or inheritance from someone outside the United States, it is easy to assume there is no IRS issue because the transfer may not be taxable income to you.

That assumption is exactly where many people get into trouble.

The tax question and the reporting question are not always the same thing. A person may owe no gift tax at all and still have a serious filing obligation. For many U.S. taxpayers, that filing obligation is Form 3520.

Quick Summary

• Form 3520 is often a reporting issue, not a tax bill by itself.
• U.S. taxpayers may need to file it after receiving large gifts or inheritances from foreign individuals or foreign estates.
• The form is also used in certain foreign-trust situations, which means some cases are more complicated than a simple family gift.
• The IRS can impose substantial penalties for a missed or late filing even when the transfer itself was not taxable income.
• If the IRS has already contacted you, the smartest move is usually to understand the full reporting picture before you rush into a response.

Quick Overview of IRS Form 3520

Form 3520 is an information return used in certain international reporting situations. Many readers care about it because of foreign gifts or inheritances, but the form also appears in matters involving foreign trusts and certain related transactions.

That is important because people often hear “foreign gift form” and assume the rule is narrow. It is not always narrow. In some cases, the transfer is simple. In others, the form sits inside a broader international reporting issue.

Are Foreign Gifts or Inheritances Taxable in the United States?

In many situations, a foreign gift or inheritance is not taxed as ordinary income to the U.S. recipient.

That is why so many taxpayers are confused by Form 3520. They correctly hear that the gift itself may not be taxable, then wrongly conclude that there is nothing to report.

But the IRS still wants disclosure in certain situations. The purpose is not necessarily to tax the gift itself. The purpose is to track certain cross-border transfers and distinguish legitimate gifts from transfers the government may want to examine more closely.

What Types of Foreign Gifts Must Be Reported?

The reporting issue often shows up in situations like these:

• cash received from a foreign parent or relative
• money transferred from a foreign estate after a death
• foreign financial assets received as part of an inheritance
• property or other assets transferred from a foreign source

In many families, these transfers feel informal and personal. But once the value is high enough, the IRS may expect formal reporting even if the funds came from a parent, grandparent, or other close relative.

Why the IRS Requires Foreign Gift Reporting

The IRS is not using Form 3520 only to look for tax on a gift. It is also trying to verify what the transfer actually was.

Without information reporting, the government has less ability to distinguish between:

• a true gift
• an inheritance
• unreported income
• a transfer tied to a foreign trust
• another financial event that may require a different kind of review

That is one reason these cases become stressful. Taxpayers often think the issue is just one missed form, while the IRS may be asking a wider question about the character of the transfer and whether the surrounding filings make sense.

Who Must File IRS Form 3520 for Foreign Gifts?

For many taxpayers, the first practical question is whether they crossed the reporting threshold at all.

In broad terms, a U.S. taxpayer may need to file Form 3520 when the total foreign gifts or bequests received from a foreign individual or foreign estate exceed $100,000 during the relevant year.

There are also lower thresholds for certain transfers from foreign corporations or partnerships, and those rules can catch people by surprise because they do not track the same way as gifts from foreign individuals.

That is why it helps to ask more than, “Did I get money from overseas?” The better questions are:

• who sent the transfer?
• how much was received in total during the year?
• was it really a gift or inheritance?
• does the transaction involve a foreign trust or business structure?

How to Report a Foreign Gift or Inheritance on Form 3520

If Form 3520 is required, it should be prepared carefully.

At a minimum, the taxpayer should have:

• the identity of the donor or estate
• the total amount received during the year
• transfer dates
• bank and wire records
• any documents explaining the nature of the transfer
• the filed return for the year in question

This is where a lot of preventable mistakes happen. People sometimes file quickly with incomplete facts, inconsistent dates, or weak descriptions of the transfer. That may create more trouble than waiting a short time to get the facts organized properly.

If you are already trying to understand a larger notice or penalty problem, it may also help to review what to do if the IRS contacts you after a foreign gift or Form 3520 filing problem and how to report a foreign gift or inheritance to the IRS.

When Is IRS Form 3520 Due?

The timing question matters because some taxpayers do not discover the issue until after their annual filing was already completed.

In many cases, the form is tied to the same general filing calendar as the individual return, including extension considerations where applicable. But once a filing is late, the real question becomes less about the date on paper and more about how to correct the issue without creating a weaker record.

If you already missed the deadline, do not reduce the problem to, “I just need to send in the form now.” Some late filings are simple to correct. Others sit inside a larger reporting or penalty problem.

What Happens If You Fail to File Form 3520?

This is usually the part that creates panic.

The IRS can impose substantial penalties for late or missing Form 3520 filings. Even taxpayers who owed no tax on the transfer can suddenly find themselves facing a serious notice because the reporting obligation itself was missed.

That does not mean every case ends in the worst possible outcome. It does mean the issue should be taken seriously.

Some situations are caught early and fixed cleanly. Others get harder because the taxpayer:

• ignored the issue
• assumed no filing was needed
• filed something incomplete
• responded without reviewing whether related reporting problems also existed

Addressing Form 3520 Penalties

Once a penalty notice is on the table, the case is no longer just about whether a form should have been filed. It becomes a representation issue.

Questions often include:

• was the form actually required on these facts?
• did the IRS understand the transaction correctly?
• is there a reasonable-cause position worth developing?
• is the missing filing part of a larger international reporting gap?
• will the response fix the issue or widen it?

That is one reason these cases should not always be handled like a clerical cleanup.

If the matter has already escalated into a notice problem, the article on sample IRS audit letters you might receive and how to respond may help you recognize what kind of IRS contact you are dealing with.

Why Some Form 3520 Cases Become More Complicated Than They Look

From the outside, a Form 3520 case can look like one late filing.

In reality, the issue may overlap with:

• foreign trust questions
• foreign account reporting concerns
• inconsistent return positions
• multi-year transfer patterns
• documentation problems
• uncertainty about whether the transfer was really a gift at all

That is why a taxpayer who says, “It was just money from family overseas,” may still need a more careful review than expected. The facts may be personal, but the reporting framework is technical.

Working With a Tax Attorney on Form 3520 Issues

Not every Form 3520 matter requires the same level of intervention. But some absolutely deserve a more careful approach from the start, especially when the amount is large, the IRS has already made contact, or the transaction does not fit neatly into a one-line explanation.

Sammy Kim handles federal tax matters for clients nationwide. In Form 3520 cases, that matters because the goal is not only to send something to the IRS. The goal is to make sure the filing position, the facts, and the surrounding record all work together.

If a foreign gift or Form 3520 issue is making you wonder whether one reporting problem is about to turn into something much larger, the safest next step is usually to evaluate the full picture before sending anything incomplete or inconsistent to the IRS.

Talk to a tax expert now. Book a consultation at vataxattorney.com or call (703) 202-1005.