IRS Form 3520: How to Handle Reporting Foreign Gifts and Trusts

IRS Form 3520 is a separate information return used to tell the Internal Revenue Service (IRS) about certain transactions with foreign trusts and about large gifts or inheritances from foreign individuals or estates. It is not a tax return, but failing to file it when required can lead to very large penalties, often calculated as a percentage of the amount involved.

This guide focuses on what Form 3520 is for, how to figure out if you likely need it, where to get official help, and the concrete steps to prepare and file it correctly.

1. What IRS Form 3520 Is and When You Might Need It

Form 3520 is filed with the IRS (Internal Revenue Service), the federal tax authority in the United States. It is typically required in three main situations for U.S. persons (citizens, residents, some entities):

• You received a distribution from a foreign trust.
• You created, transferred assets to, or are treated as an owner of a foreign trust.
• You received large gifts or inheritances from a foreign person or foreign estate (including some foreign corporations or partnerships).

A common real-life trigger is receiving more than a set dollar threshold (often around the low- to mid-six figures, but the exact threshold can change) as a gift or inheritance from someone who is not a U.S. person. The payment might be wired into your U.S. bank account, and your tax preparer may ask whether a Form 3520 is required to report it.

Key terms to know:

• Foreign trust — A trust that is not considered a U.S. trust under IRS rules (often set up under foreign law or managed outside the U.S.).
• U.S. person — For Form 3520, typically a U.S. citizen or resident, and some U.S. corporations, partnerships, and estates.
• Foreign grantor trust owner — Someone treated as owning assets in a foreign trust for U.S. tax purposes (often the person who created or funded it).
• Foreign gift — Money or property received from a foreign individual or entity that is not paid for (no services or sales in exchange).

Rules can vary by your specific situation (for example, whether the foreign person is an individual, company, or trust), so professional advice is common with this form.

2. Where to Go Officially: IRS Touchpoints and How to Start

The main official system handling Form 3520 is the IRS, specifically its international and complex filing units.

Two common official touchpoints are:

• IRS Telephone Assistance for International Taxpayers — A specialized IRS phone line that answers questions about foreign reporting forms like Form 3520. Search for the IRS international taxpayer phone contact on the official IRS site and call the number listed.
• Taxpayer Assistance Center (TAC) — Local IRS offices where you can sometimes get in-person guidance on where to file and how to handle notices. Search for “IRS Taxpayer Assistance Center locator” and schedule an appointment through the official .gov site.

A concrete next action you can take today is to download the latest Form 3520 and its instructions from the official IRS website and read the first pages, especially the “Who Must File” and “When and Where To File” sections. After that, you can mark whether you are dealing with a foreign gift/inheritance, a foreign trust distribution, or ownership of a foreign trust, since each is reported in different parts of the form.

3. What You Need to Prepare for Form 3520

Before you try to fill out Form 3520, gather detailed information about the foreign transaction(s). Missing facts about the gift or trust is a common cause of delays and amended filings.

Documents you’ll typically need:

• Bank or brokerage statements showing the date, amount, and source of the foreign gift or distribution (for example, a SWIFT wire confirmation or international transfer detail).
• Written documentation from the foreign person or estate, such as a gift letter, inheritance statement, or executor’s letter describing the transfer, including names, addresses, and relationship to you.
• Foreign trust documents, if applicable — a trust deed, trust summary, or annual statement from the foreign trustee describing distributions, value, and your role (grantor, beneficiary, etc.).

If the documents are not in English, you may need translations or at least enough information to clearly explain the transaction in English on the form. You will also need your Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) and your annual income tax return (Form 1040) details, since Form 3520 typically ties to a specific tax year.

Because Form 3520 is an information return, you do not attach payment with it by default, but penalties can be assessed later if the IRS decides you should have filed and did not, or if the form is incomplete.

4. Step-by-Step: How to Complete and File Form 3520

Follow these steps in order so you don’t miss a key piece that the IRS usually expects.

1. Confirm whether you are likely required to file

   • Action: Review the “Who Must File” section in the current Form 3520 instructions and compare it to your situation (foreign gift, foreign trust distribution, or ownership).
   • What to expect next: You should be able to decide whether your transaction(s) fall above the reporting thresholds or involve a foreign trust.

2. Identify the correct reporting category on the form

   • Action: On Form 3520, locate the parts that match your situation:
     • Part I: Transfers by a U.S. person to a foreign trust.
     • Part II: U.S. owners of foreign trusts.
     • Part III: Distributions to a U.S. person from a foreign trust.
     • Part IV: Gifts or bequests from foreign persons.
   • What to expect next: You’ll know which sections to complete and which you can leave blank, based on the instructions.

3. Gather supporting details and documents

   • Action: Use your bank transfer records, gift/inheritance letters, and trust statements to list:
     • Exact dates of transfers or distributions.
     • Currency and U.S. dollar equivalent.
     • Name and address of the foreign person, trust, or estate.
   • What to expect next: You should be able to fill all required lines for your applicable section(s) without guessing amounts or dates.

4. Fill in Form 3520 for the correct tax year

   • Action: Complete your personal details, then fill only the parts that apply to you, carefully following specific line instructions. If you are unsure, consider consulting a qualified tax professional experienced with foreign trusts or foreign gifts.
   • What to expect next: Once the form is complete, you will review it for accuracy and ensure it matches the amounts shown on your regular income tax return (if related amounts are taxable).

5. File Form 3520 by the correct deadline and with the correct office

   • Action:Check the current filing deadline in the instructions; it is often due at the same time as your income tax return (including extensions) for that year, but you generally mail Form 3520 to a specific IRS address (it usually is not e-filed with your 1040). Use the exact mailing address listed in the latest instructions, which often goes to a specialized IRS processing center for international or complex forms.
   • What to expect next: After mailing, you will not usually get a separate “approval” notice. However, if the IRS finds issues or needs clarification, they may send you a notice or letter months or even years later asking for more information.

6. Keep copies and track proof of mailing

   • Action: Keep a full copy of the signed Form 3520 and all supporting documents, plus proof of mailing (such as certified mail receipt).
   • What to expect next: If the IRS later claims that the form was not filed, you can typically use your proof of mailing and copy to respond and request that penalties be reconsidered.

A one-line phone script you can use with the IRS is: “I need help confirming whether I’m required to file Form 3520 for a foreign gift/foreign trust distribution I received; can you direct me to the right unit or instructions?”

5. Real-World Friction to Watch For

Real-world friction to watch for

A frequent snag is when the foreign person, trustee, or estate will not provide detailed documentation (for privacy, language, or legal reasons), making it hard to fill in the names, addresses, and amounts the IRS expects on Form 3520. In that case, document your attempts to obtain information (emails, letters, messages) and provide the best information you reasonably have on the form, along with an explanation statement; this is often used later to argue for penalty relief if the IRS questions the filing.

6. Penalties, Notices, and Where to Get Legitimate Help

The IRS commonly imposes significant penalties for not filing Form 3520 on time, or for filing an incomplete or incorrect form. Penalties are often calculated as a percentage of the amount of the foreign gift or trust assets/distribution, and can be tens of thousands of dollars in serious cases, though the actual amount is determined by the IRS. Rules and enforcement practices can vary depending on your fact pattern and the tax year involved.

If you receive an IRS notice claiming you failed to file Form 3520 or proposing a penalty, you typically have the opportunity to respond in writing, explain your situation, provide a late-filed form if needed, and request that penalties be waived or reduced under reasonable cause. Keep all IRS letters and respond by the deadline printed on each notice.

For legitimate help, your options typically include:

• Official IRS channels

  • IRS International Taxpayer phone assistance for questions on whether and how to file.
  • Taxpayer Assistance Centers (TACs) for basic procedural help and understanding IRS notices (appointments usually required).

• Qualified tax professionals

  • Enrolled Agents (EAs), Certified Public Accountants (CPAs), or tax attorneys who have experience specifically with international tax and foreign trust reporting.
  • When searching, look for professionals who explicitly list Form 3520 or “offshore/foreign trust reporting” as a service area.

• Low-income and nonprofit assistance

  • Some Low Income Taxpayer Clinics (LITCs) and legal aid tax clinics can help if you’re facing IRS penalties or disputes and meet their income guidelines, especially if Form 3520 penalties are causing hardship.

Because Form 3520 involves foreign assets and large dollar amounts, it can attract scam “tax resolution” companies that overpromise. To avoid fraud, look for .gov websites for official guidance, verify any tax professional’s license (EA, CPA, attorney) through state or federal registries, and be cautious of anyone who guarantees penalty removal or demands large upfront fees before reviewing your documents.

Once you have your documents gathered and have read the official Form 3520 instructions, your next official step is to either complete and mail the form to the IRS using the specified address, or schedule time with a qualified tax professional to review and file it on your behalf.