Form 5471: US Expats Who Own Foreign Companies

Owning as little as 10% of a foreign corporation without filing Form 5471 triggers a $10,000 IRS penalty per year — even when the company earns nothing and you take no distributions. For expats forming a UK Ltd, a Colombian SAS, or an Estonian OÜ to manage location-independent income, this annual IRS information return is the reporting obligation almost nobody mentions alongside the incorporation paperwork.

What is Form 5471 and who is required to file it?

Form 5471 — officially the "Information Return of US Persons with Respect to Certain Foreign Corporations" — is a reporting form, not a tax return. No tax is paid directly on this form. Its purpose is to give the IRS a complete picture of what foreign corporations US persons own or control, so it can verify that Subpart F income, GILTI, and other pass-through amounts are correctly reflected in the shareholder's US return.

The form is filed as an attachment to your Form 1040 (or 1040-NR) each year. One Form 5471 is required per foreign corporation — if you own shares in three different foreign entities, you file three separate forms. The obligation follows the shareholder, not the company structure.

For context on the full picture of US reporting when you live abroad, see the US expat banking and tax guide.

What are the five categories of Form 5471 filers?

The IRS assigns five filing categories based on how you relate to the foreign corporation — through ownership percentage, control, or a corporate role. Each category carries a different set of required schedules. Falling into multiple categories means completing all the schedules each category demands.

Category	Who files	Typical expat example
1 (1a/1b/1c)	US shareholders of Section 965 Specified Foreign Corporations	Owners affected by the 2017 TCJA one-time repatriation transition tax
2	US citizens/residents who are officers or directors of a foreign corporation with a 10%+ US shareholder	Expat founder who also serves as director of a company where a US co-investor owns 10%+
3	US persons acquiring or disposing of 10%+ voting stock in a foreign corporation	Expat who forms or invests in a foreign company and holds 10% or more
4	US persons who control a foreign corporation (more than 50% of voting power or value)	Solo expat founder owning 100% of a foreign operating company
5 (5a/5b/5c)	US shareholders of Controlled Foreign Corporations (CFCs)	Any US person owning 10%+ of a foreign company that is itself majority-controlled by US shareholders

Most independent expat founders fall into both Category 3 and Category 4 — they formed the company (a Category 3 event) and they control it (an ongoing Category 4 obligation). Once a company qualifies as a CFC (more than 50% collectively owned by US persons who each own 10%+), Category 5 adds the most demanding schedule requirements: income statements, balance sheets, related-party transaction schedules, and the GILTI data fields on Schedule I-1 and Schedule Q.

What is a Controlled Foreign Corporation, and why does it change what you owe?

A Controlled Foreign Corporation is a foreign company where US shareholders collectively own more than 50% of the voting power or value — with each qualifying shareholder holding at least 10%. Once a company crosses that threshold, US shareholders must include their share of Subpart F income and GILTI in their US tax return each year, even without receiving a distribution.

Subpart F income is passive income earned inside the CFC — interest, dividends, royalties, rents, and certain sales profits under IRC Section 954. This income flows through to the US shareholder's return in the year it is earned, not when it is distributed. A solo expat founder who runs client services through a wholly owned Colombian SAS and reinvests all profits back into the business does not defer US income tax on those earnings — the passive income flows through each year as Subpart F or GILTI inclusion, whether or not a dollar leaves the company account.

For the detailed tax consequences of CFC income — what you actually owe each year beyond the filing obligation — see the guide on GILTI and NCTI taxation for expat foreign company owners.

What are the penalties for failing to file Form 5471?

The base penalty for failing to file Form 5471 on time is $10,000 per foreign corporation per year, under IRC Section 6038(b)(1) — regardless of how much income the company generated. Zero income is not a defense. The company not being "active" is not a defense. The penalty accrues from the original due date of the tax return.

If the IRS sends a notice of failure and the taxpayer still does not file, the continuation penalty adds $10,000 per 30-day period after the 90-day cure window expires. That continuation penalty caps at $50,000 per company per filing year under IRC Section 6038(b)(2). For an expat with two foreign companies who misses two years of filings, the math can reach $240,000 in civil penalties before any tax is assessed.

Beyond the dollar penalties, the IRS can reduce foreign tax credits claimed on the return by 10% for a base failure, with an additional 5% reduction for each 3-month period of continued non-compliance under IRC Section 6038(c). This converts a missed filing into extra US tax owed even if the underlying foreign income would otherwise have been offset by foreign tax credits.

The statute of limitations does not start running until Form 5471 is actually filed. Under IRC Section 6501(c)(8), the entire tax return for that year remains open for IRS examination — not just the form penalty — until the required information is furnished. An expat who ran a foreign company from 2019 through 2024 without filing any Form 5471s potentially has all six returns still open for adjustment.

Source: IRS About Form 5471; Instructions for Form 5471; 26 USC § 6038 (Cornell LII). Penalty amounts and reduction percentages verified as of June 2026.

Which foreign company structures trigger Form 5471?

Any foreign entity classified as a corporation for US tax purposes triggers Form 5471 if the ownership or control thresholds are met. The critical distinction is between entities treated as corporations (Form 5471) and those treated as disregarded entities or foreign partnerships (which require Form 8858 or Form 8865 instead). Most common expat operating structures default to corporation classification:

• UK Ltd (Private Limited Company): Classified as a corporation. Form 5471 required for US shareholders at 10%+.
• Colombian SAS (Sociedad por Acciones Simplificada): Classified as a corporation. Widely used by US expats running service businesses in Medellín and Bogotá.
• Panama SA (Sociedad Anónima): Classified as a corporation. Common in holding structures and offshore banking setups.
• Singapore Pte Ltd: Classified as a corporation. Frequently used by Asia-based digital businesses.
• Irish DAC (Designated Activity Company): Classified as a corporation. Offers EU treaty access at a 12.5% corporate rate.
• Estonian OÜ (Osaühing): Classified as a corporation by default. A check-the-box election (Form 8832) can reclassify it as a disregarded entity, in which case Form 8858 applies instead of Form 5471. Without that election, the OÜ requires Form 5471.

How does Form 5471 differ from FBAR, Form 8938, and Form 8858?

Expats who own foreign companies often face several overlapping reporting obligations at once, each asking the IRS about a different thing.

Form	What it reports	Filed with
Form 5471	US person's ownership of a foreign corporation	Form 1040, annually
FBAR (FinCEN 114)	Foreign financial accounts over $10,000 aggregate balance	FinCEN separately (April 15, auto-extended to Oct 15)
Form 8938 (FATCA)	Specified foreign financial assets above filing thresholds	Form 1040, annually
Form 8858	Foreign disregarded entities and foreign branches	Form 1040, annually

A single expat founder may need all four. The foreign company's bank account triggers the FBAR if aggregate balances exceed $10,000. Shares in that company are a "specified foreign financial asset" that may trigger Form 8938 depending on total asset value and filing status. The company itself requires Form 5471 if structured as a corporation with US ownership at or above the thresholds. And if the owner also operates a branch of their US business in that country, Form 8858 covers the branch separately.

Can I avoid the penalty with a reasonable cause argument?

Yes, but the IRS's reasonable cause standard is fact-specific, and simply not knowing about Form 5471 generally does not qualify on its own. Under IRC Section 6038(c)(4), the IRS may waive penalties when the taxpayer demonstrates reasonable cause and good faith effort to comply. What tends to work: documented reliance on a licensed CPA who gave incorrect written advice, a documented circumstance (serious illness, natural disaster) that prevented filing, or a genuinely complex foreign law question that made entity classification uncertain.

If you have unfiled Form 5471s from prior years, the most practical path is to file amended returns (Form 1040-X) with the missing forms attached and include a written reasonable cause statement. The IRS Streamlined Filing Compliance Procedure can reduce penalties on unreported foreign income, but it does not specifically address Form 5471 non-filing penalties — those require a separate penalty abatement request under the reasonable cause standard.

Because missed Form 5471 filings hold the statute of limitations open on the entire return, the order in which you file amendments and what you say in the reasonable cause statement matters. A US international tax attorney, not just a preparer, is worth the cost when catching up on multiple years.

What does a complete Form 5471 filing require each year?

Which tax year does Form 5471 report?

Form 5471 reports the foreign corporation's tax year that ends within your US tax year. If the foreign company uses a calendar year ending December 31, it aligns with your US return and the reporting is straightforward. If the company uses a fiscal year (for example, a UK Ltd with a March 31 year-end), the form reports the company's fiscal year that ended within your US calendar year — in that case, the company's fiscal year ending March 31, 2025 would be reported on your 2025 Form 1040.

Form 5471 is a paperwork problem with a tax-sized consequence

Most expats forming foreign companies focus on the tax advantages — territorial tax systems, lower corporate rates, and control over distribution timing. Form 5471 is the annual paperwork that makes those structures visible to the IRS, and the civil penalties for ignoring it are large enough to outstrip several years of tax savings. A foreign company that generates $30,000 a year in a low-tax jurisdiction looks considerably less attractive after a $60,000 two-year penalty for the missing reporting form.

The solution is not complicated: know which filing category applies to each foreign company you own, prepare the required schedules from the company's annual financials, and attach Form 5471 to your annual US return. If prior years are missing, get qualified legal advice before filing anything — the statute of limitations exposure means those old returns are worth treating carefully. For a broader view of how US reporting obligations interact across your accounts and entities, the expat banking and tax overview covers the full picture from year one abroad.

Sources checked: IRS About Form 5471; Instructions for Form 5471 (IRS.gov). IRC Sections 6038, 6046, 6501, 954, and 957. Penalty thresholds and filing categories verified against current IRS guidance as of June 2026.

Disclaimer: This article is for informational purposes only and does not constitute tax or legal advice. Form 5471 requirements are complex and depend on your specific ownership structure, filing category, and company type. Consult a licensed US international tax professional before making decisions about foreign company ownership or catching up on missed filings.