Independent form guide. BrieflyGo is not affiliated with or endorsed by IRS, USCIS, SSA, DOL, or any U.S. government agency. Official forms are sourced from public government websites.
Official form guide
IRS Form 3520A is the Annual Information Return of Foreign Trust With a U.S. Owner (Under section 6048(b)). A foreign trust must file this form by the 15th day of the third month following its tax year end.
Need help with Form 3520A?
Open it in the AI Editor for field guidance, checks, and PDF export.
Need help? AI Editor guides you through every field of Form 3520A.
Start filling →Form Overview
IRS Form 3520A is the Annual Information Return of Foreign Trust With a U.S. Owner (Under section 6048(b)). A foreign trust must file this form by the 15th day of the third month following its tax year end.
Plain English
This form tells the IRS about a foreign trust that has at least one owner who is a U.S. person. It provides details on the trust itself, as well as information about any U.S. beneficiaries or owners it holds. Filing this ensures the U.S. owner meets their annual reporting requirement under section 6048(b) of the tax code.
Submission Date
AI co-pilot
Form selector
Filing as a Substitute
Required if filing a replacement return for the foreign trust; must be filed by the same deadline as the main Form 3520.
✓ Verify that you are attaching it to an owner's Form 3520.
Reporting Inconsistency
Use this form when U.S. beneficiaries or owners treat items on their tax returns differently than the foreign trust did on its return.
✓ Ensure the inconsistency is reported, otherwise the IRS may flag it.
Requesting an Extension
File this application using the foreign trust’s EIN to request an extension; note that extending the income tax return does not extend the filing deadline for Form 3520-A itself.
✓ Confirm you are using the correct EIN on Form 7004.
The primary deadline is the 15th day of the third month following the end of the trust’s tax year. An extension can be requested by filing Form 7004 using the foreign trust’s EIN, which must also be filed by the 15th day of that same third month.
Checklist
Filing Deadline
The 15th day of the 3rd month after the end of the foreign trust’s tax year (or the same day as Form 3520 if it is a substitute). · Instructions p.1
Who Must File
A foreign trust with at least one U.S. owner must file Form 3520-A to satisfy its annual information reporting requirements under section 6048(b). · Instructions p.1
Who Must Sign
The trustee of the foreign trust must sign Form 3520-A; if the trustee is a partnership, a partner or LLC member must sign it. · Instructions p.2
Where To File (Mail)
Internal Revenue Service Center P.O. Box 40910 · Ogden, UT 84409
U.S. Agent Appointment
Check “Yes” if a U.S. agent was appointed and enter the year the Authorization of Agent form was last attached. · Instructions p.6
Trust Documents (If No U.S. Agent)
List documents attached to the current year Form 3520-A and those attached within the last 3 years, specifying the attachment years. · Instructions p.7
Distribution Reporting
Complete the Foreign Grantor Trust Beneficiary Statement for any U.S. person who receives a distribution directly or indirectly during the tax year. · Instructions p.8
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.
Almost done reviewing the fields?
Fillable formOpen in Editor->The current edition is Revision December 2025, and users should use these instructions for tax year 2025 and subsequent years until a superseding revision is issued; further updates are available at IRS.gov/Form3520A.
Quick Facts
Downloads
When is Form 3520-A due if the foreign trust has a fiscal year?
The deadline is the 15th day of the 3rd month after the end of the foreign trust’s tax year.
→ Check Instructions p.1 for confirmation.
If we file a substitute Form 3520-A, when is it due?
It is due on the same day as the U.S. owner’s Form 3520.
→ Verify this against the instructions for Form 3520 (Instructions p.1).
If we don't appoint a U.S. agent, what must we attach?
You must attach documents listed on Line 8 of Form 3520-A (current and prior 3 years).
→ Confirm the list of required attachments in Part I instructions.
Does filing an extension for income tax cover Form 3520-A?
No, an extension of time to file an income tax return does NOT extend the time to file Form 3520-A.
→ You must file Form 7004 using the foreign trust’s EIN (Instructions p.2).
What if our trustee is a partnership? Who signs?
A partner or limited liability company (LLC) member of that partnership must sign Form 3520-A.
→ Check Instructions p.2 for specific signatory requirements.
Do we include interest paid on all debt?
No, do not include interest paid on indebtedness if the interest is wholly exempt from income tax.
→ See Instructions p.6 for this exclusion.
Workflow map
Before
Current
After
Often used with
⚠ If something goes wrong
This form tells the IRS about a foreign trust that has at least one owner who is a U.S. person. It provides details on the trust itself, as well as information about any U.S. beneficiaries or owners it holds. Filing this ensures the U.S. owner meets their annual reporting requirement under section 6048(b) of the tax code.
A foreign trust with a U.S. owner must file Form 3520-A to satisfy its annual information reporting requirements under section 6048(b). Each U.S. owner is also responsible for ensuring this filing occurs.
The form collects details about the foreign trust and its owners/beneficiaries. Specific statements included are the Foreign Grantor Trust Owner Statement (pages 3 and 4) and the Foreign Grantor Trust Beneficiary Statement (page 5).
The foreign trust must file Form 3520-A by the 15th day of the third month following the end of its tax year, unless an extension is granted. The U.S. owner must also provide copies to beneficiaries/owners by this due date.
Form 3520-A must be filed at the Internal Revenue Service Center P.O. Box 409101 in Ogden, UT 84409. The instructions direct users to refer to Form 3520 for where to file a substitute Form 3520-A.
First, enter the tax year and confirm all information is in English and U.S. currency on all statements. The trustee of the foreign trust must sign Form 3520-A; if the trustee is a partnership, an LLC member or partner signs. Complete the required attachments before submitting.
If the foreign trust fails to file timely or includes incorrect information, the U.S. owner faces an initial penalty equal to the greater of $10,000 or 5% of the gross value of the portion owned by the U.S. person (Section 6677(a) through (c)).
The deadline is the 15th day of the 3rd month after the end of the foreign trust’s tax year. Check Instructions p.1 for confirmation.
Source transparency
BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.
Review risky clauses in plain English, fix the document, and keep it moving toward signature.