The Ultimate Guide to International Taxation — Filing Requirements for Trusts and Gifts: Form 3520/3520A

Free Tax Guide

Filing Requirements for Trusts and Gifts: Form 3520/3520A

Sam Brotman Sam Brotman, J.D.|Last updated May 2026

Quick Answer

Foreign trusts and gifts trigger four reporting scenarios: (1) Form 3520 for receipt of foreign gifts or inheritance over $100K (individual) or $18,567 (2024, foreign corporation/partnership); (2) Form 3520 for transactions with foreign trusts; (3) Form 3520-A for foreign trust reporting by the trust (grantor-filed); and (4) potential throwback tax on accumulated distributions. The short version is that Form 3520 and 3520-A non-compliance triggers 35% penalties that can exceed the transaction value. In our experience, many foreign gifts and trust distributions go unreported because taxpayers don't realize informational reporting is required even when no income tax is due.1

Form 3520 question? A 15-minute consultation is free.

Four reporting scenarios for foreign trusts and gifts.

If you have a foreign trust or received a foreign gift and haven’t filed Form 3520:

Form 3520 failures carry penalties of up to 35% of the trust’s gross assets. A free 15-minute call covers whether the form is required for your situation, whether late filing or a streamlined disclosure program is available, and how the IRS treats technical vs. willful failures.

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The Four Foreign Trust / Gift Scenarios

GiftOver $100K / $18K
Trust TransForm 3520
Trust ReportForm 3520-A
ThrowbackAccumulated Distribs
3520 scenarios.
ScenarioThreshold2
Foreign Gift$100K individual / $18,567 entity (2024)
Trust TransactionsAny reportable transaction
Trust Annual ReportAnnual 3520-A
Throwback TaxAccumulated distributions

Quick Reference

Jump to: gift, transactions, annual, or throwback.

1. Foreign Gift / Inheritance Reporting

Form 3520 Part IV when aggregate gifts exceed threshold.

If this is you: Received gift or inheritance from foreign person. Over $100K from individual, or $18,567 (2024) from foreign corporation / partnership. Form 3520 Part IV required. No income tax on gift typically but informational reporting mandatory.

Foreign Gift Strategy

  1. Identify foreign person donor.
  2. Aggregate gifts across year.
  3. Determine threshold met.
  4. Gather documentation.
  5. File Form 3520 by extended 1040 due date.

2. Foreign Trust Transactions

Form 3520 for contributions, distributions, and other trust transactions.

If this is you: Contributed to foreign trust, received distribution, or otherwise transacted. Form 3520 required. Separate from Form 3520-A annual report.

3. Annual Trust Report

Form 3520-A by foreign trust (or grantor if trust doesn't file).

If this is you: Owner of foreign trust (grantor trust rules). Form 3520-A required annually. If foreign trust doesn't file, grantor files. Due March 15 (extended September 15).

4. Throwback Tax on Accumulated Distributions

Undistributed net income distributions subject to throwback tax.

If this is you: Receiving distribution from foreign non-grantor trust including accumulated income from prior years. Throwback tax plus interest charge. Can significantly increase effective tax rate.

Foreign trust or gift question? Book consultation.

Form 3520 Document Lookup

3520 docs.
Form / AuthorityPurpose
Form 3520Gifts, inheritances, trust transactions
Form 3520-AAnnual foreign trust report
IRC §6039FForeign gift reporting
IRC §6048Foreign trust reporting
IRC §6677Non-filing penalty
IRC §668Throwback tax

3520 Statute

  • 3-year standard if filed timely.
  • Statute doesn't start for unfiled 3520.
  • 6-year for 25%+ omissions.

3520 Patterns

3520 outcomes. Source: Brotman Law practice.
SituationOutcome
Filed timelyNo penalty
Missed gift > $100K35% of gift (capped)
Missed trust transaction35% or $10K min
Reasonable causePotential abatement

3520 Escalation

IRS Letter

CP15 penalty notice or examination.

Reasonable Cause

Abatement request.

Appeals / Court

Tax Court review of penalty.

First 48 Hours

  1. Identify reportable transactions.
  2. Gather documentation.
  3. Assess filing gaps.
  4. Evaluate reasonable cause.
  5. Engage international counsel.
Brotman Law handles Form 3520 / 3520-A matters. Based in San Diego.

The ROI Question

35% penalty can exceed gift value. Proactive filing or reasonable cause defense essential.

When to Engage

  • Foreign gift or inheritance received.
  • Foreign trust interest.
  • Missed 3520 / 3520-A.
  • CP15 penalty notice.

Form 3520 question?

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Frequently Asked Questions

What is Form 3520?

Annual return reporting transactions with foreign trusts and receipt of certain foreign gifts. Informational return — no tax generally due on receipt — but filing is mandatory.

What gifts must be reported?

Aggregate gifts from foreign individuals > $100K annually, or from foreign corporations / partnerships > $18,567 (2024). Inheritances from foreign estates included.

Is Form 3520 income tax?

Generally no. Most gifts not taxable income to recipient. But reporting obligation separate. Non-reporting triggers 35% informational return penalty.

What is Form 3520-A?

Annual information return of a foreign trust with a U.S. owner. Filed by trust or by U.S. grantor if trust doesn't comply. Due March 15 (extended September 15).

What are 3520 penalties?

35% of amount not reported (gifts, contributions, distributions). Minimum $10K. Can stack across years. Reasonable cause defense available.

What is throwback tax?

Tax on accumulated distributions from foreign non-grantor trusts. Deemed distribution in prior year. Plus interest charge. Significantly increases effective rate.

Do I need to file for small gifts?

Aggregate must exceed threshold. Multiple small gifts from same person aggregated. Related donors may be aggregated.

Is grantor trust reporting simpler?

Grantor trust taxed to U.S. owner. 3520-A required annually. Distributions not taxable to grantor again. Still reporting-intensive.

What is reasonable cause for 3520?

Good faith + reasonable reliance. Lack of knowledge supported by facts. Reliance on competent tax professional. Facts-specific determination.

What if I just found out?

Pro-active late filing with reasonable cause statement. Better than awaiting IRS contact. Attorney-drafted statement recommended.

Can I use streamlined for 3520?

Streamlined program covers 3520 / 3520-A. Non-willful determination required. Coordination with FBAR streamlined typical.

Does inheritance count as gift?

Yes under §6039F. Foreign estate inheritance > $100K reported on 3520 Part IV.

What about foreign life insurance?

Complex. PFIC and 3520 considerations. Some policies reportable; others not. Facts-specific analysis essential.

Next Steps

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