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Official form guide
IRS Form 3520 is the Annual Return To Report Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts, filed by U.S. persons to report transactions with foreign trusts; it is due by the 15th day of the 4th month following the end of the taxpayer’s tax year.
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IRS Form 3520 is the Annual Return To Report Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts, filed by U.S. persons to report transactions with foreign trusts; it is due by the 15th day of the 4th month following the end of the taxpayer’s tax year.
Plain English
This form lets taxpayers tell the IRS about important financial activities involving foreign trusts or when they receive large gifts from people outside the United States. It ensures the IRS tracks ownership and major transactions related to these international assets. Filing this form keeps the government aware of your relationship with foreign entities.
Submission Date
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Filing for a Foreign Trust
Required if the reporting is from the perspective of the foreign trust itself.
✓ Check the 'Substitute Form 3520-A' box on your attached Form 3520-A.
Reporting Inconsistent Treatment
Used when your tax return items differ from how the foreign trust reported them, unless you report the inconsistency separately.
✓ Ensure you file this notice if there is a discrepancy in treatment.
Receiving Gifts from Covered Expatriates
Required if you receive a distribution from a foreign trust that is attributable to a gift or bequest from a covered expatriate.
✓ This form complements Form 3520 when dealing with gifts from covered expatriates.
The primary due date is the 15th day of the 4th month following the end of the taxpayer’s tax year. If a complete Form 3520 is not filed by this deadline, the time for assessment does not expire before 3 years after reporting the required information (section 6501(c)(8)).
Checklist
Due Date (U.S. Person)
The 15th day of the 4th month following the end of the taxpayer’s tax year · Instructions p.1
Due Date (Foreign Trust)
The 15th day of the 3rd month after the end of the foreign trust’s tax year · Instructions p.1
Penalty Trigger
Timely non-filing or incomplete/incorrect information on Form 3520 · Section 6677 (Instructions p.1)
Filer Category
U.S. person, executor of a U.S. estate, or foreign trust filing via Form 3520-A · Instructions p.1 / Form p.1
Reportable Event Trigger
Transferring property to a related foreign trust in exchange for an obligation, or holding a qualified obligation from that trust · Instructions p.1 (Part I)
Field map
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
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Fillable formOpen in Editor->The current edition is based on a revision date of December 2025, and users should use these instructions for tax year 2025 and subsequent years until a superseding revision is issued; the source directs users to IRS.gov/Form3520 for the latest information.
Quick Facts
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Should I file jointly with my spouse?
If both spouses are transferors, grantors, or beneficiaries of the same foreign trust and file a joint return, they may file a joint Form 3520.
→ Check the box on line 1i on page 1.
When is the deadline for filing if I live outside the U.S.?
The standard deadline is the 15th day of the 4th month following the end of the tax year, but those living and working abroad have until the 15th day of the 6th month.
→ Verify your residency status and check the appropriate box.
Do I need to file Form 3520-A separately?
Yes, unless it is a substitute attached to Form 3520; if so, it's due on the same date as Form 3520.
→ Confirm whether your trust requires a standalone Form 3520-A or if it is being submitted as a substitute.
What happens if my tax return items don't match the foreign trust’s?
File Form 8082 (Notice of Inconsistent Treatment or Administrative Adjustment Request) to report this inconsistency.
→ Ensure you are prepared to file Form 8082 if your treatment differs from the foreign trust's.
When does the penalty for late/incorrect filing expire?
The time for assessment will not expire before the date that is 3 years after the date on which the required information is reported.
→ Confirm the exact date of reporting to calculate the expiration window.
Do I need to check Item C if I file Form 8938?
Check item C only if you also file Form 8938 for the same tax year and include this Form 3520 in the total number reported on line 15 of Part IV of Form 8938.
→ Verify that both forms are filed together for the relevant tax year.
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This form lets taxpayers tell the IRS about important financial activities involving foreign trusts or when they receive large gifts from people outside the United States. It ensures the IRS tracks ownership and major transactions related to these international assets. Filing this form keeps the government aware of your relationship with foreign entities.
U.S. persons must file Form 3520 if they are responsible for reporting a reportable event, transferred property to a related foreign trust, or are treated as the owner of any part of a foreign trust's assets during the tax year.
The form collects identifying information on page 1; Part I details transfers by U.S. Persons to a Foreign Trust During the Current Tax Year, and Part III covers Distributions to a U.S. Person From a Foreign Trust During the Current Tax Year.
Form 3520 is due by the 15th day of the 4th month following the end of the taxpayer’s tax year. A separate Form 3520 must be filed for transactions with each foreign trust.
The instructions do not specify a single service center, but general filing mechanics require submission to the IRS. The form can also be submitted via electronic means.
First, complete the identifying information on page 1. Then, fill out the relevant parts based on your transactions—Part I for transfers to a trust or Part II if you own the assets. Finally, ensure all required sections are complete before submitting.
If a complete Form 3520 is not filed by the due date, the time for assessment of any tax imposed will not expire before the date that is 3 years after the date on which the required information is reported (section 6501(c)(8)).
If both spouses are transferors, grantors, or beneficiaries of the same foreign trust and file a joint return, they may file a joint Form 3520. Check the box on line 1i on page 1.
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