US taxes while living abroad

Which US forms can apply to foreign funds, companies and trusts?

Last reviewed .

Several can, depending on what you own and how. Publication 54 points to Form 8621 for some non-US mutual funds and ETFs, and to separate information returns for foreign corporations, partnerships, disregarded entities, trusts and gifts. A local investment account is therefore more than an FBAR question. A licensed tax professional should apply these rules to your own facts.

Key facts

Key facts, checked November 9, 2026
FactWhat the source saysSource
Foreign funds and ETFsPossible Form 8621 reporting as a passive foreign investment companyOfficial source
Foreign corporationsForm 5471 for certain US personsOfficial source
Foreign partnershipsForm 8865 for certain US personsOfficial source
Foreign disregarded entitiesForm 8858 for certain US personsOfficial source
Foreign trusts and giftsForms 3520 and 3520-A in specified casesOfficial source

Why is a foreign investment account not only an FBAR question?

The FBAR reports the account. The products inside it can raise their own US rules. Publication 54 identifies possible Form 8621 issues for non-US-domiciled mutual funds and ETFs, which may be treated as passive foreign investment companies. The account, the product, the ownership structure and each transaction can each create a different reporting question.

Which forms can apply to a foreign business you own?

Publication 54 lists information returns that can arise from foreign entities. Which one applies depends on the entity's US tax classification and your ownership, not on its local name.

Information returns named in Publication 54
SituationFormWhat decides it
Interest in a foreign corporationForm 5471Your ownership, role and the filer categories in the instructions
Interest in a foreign partnershipForm 8865Your ownership and the filer categories
Foreign disregarded entity or branchForm 8858Entity classification and ownership
Shares in a passive foreign investment companyForm 8621The fund or company and what happened in the year
Foreign trust or large foreign giftForm 3520 or 3520-AYour relationship to the trust, or the gift amount and source

Does reporting the income cover the entity?

Not always. A foreign business can require entity-specific reporting even when you already reported its income on your return. Do not decide a form requirement from an article title. Use each form's current instructions for the filer categories and thresholds.

What should a first inventory include?

List each account, then each product or entity under it. Record the facts the instructions ask about, so a preparer can test each form.

  • Legal form and country of each entity
  • Your ownership percentage, and family members' holdings
  • Acquisition dates and cost
  • Distributions, sales and transfers during the year
  • Gifts or inheritances received from people outside the US
  • Statements from each fund, broker or trust

Checklist before you start

  1. List every foreign account and every fund or ETF inside it.
  2. Collect annual statements, including purchase and sale history.
  3. Write down each foreign company or partnership you own and your percentage.
  4. Find formation documents for any foreign entity.
  5. Note any foreign trust you created, fund or benefit from.
  6. Record gifts or inheritances from people outside the US, with dates and amounts.

Common questions

Is a foreign ETF a PFIC?

Many non-US funds can be passive foreign investment companies. The Form 8621 instructions set out the tests and when the form is needed.

Do I file Form 5471 for a small company I own abroad?

Possibly. Form 5471 has several filer categories based on ownership and role. A preparer should check your facts against the current instructions.

Do I report a gift from my parents abroad?

Large gifts from foreign persons can require Form 3520. The instructions set the thresholds.

Official sources

Sources checked . Official pages change. Use the source over this summary if they differ.

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General information from IRS and FinCEN publications, not tax advice. Rules depend on your facts and the tax year. Confirm with a licensed tax professional before you file. US Expat Desk is a private company. We are not affiliated with the US government, the State Department, or the FBI.