Form 5471 Explained: U.S. Owners of Foreign Corporations
The five filer categories, what the form reports, and why a missed one keeps the whole return open
Reviewed by the Fairlight Accounting cross-border tax team — U.S. & Canadian Tax Desks
Form 5471 is the information return a U.S. person files for a foreign corporation they own, control, or serve as an officer or director of. It reports the corporation's income, balance sheet, ownership, and related-party transactions, and feeds the shareholder's subpart F and NCTI (formerly GILTI) inclusions. Missing it costs US$10,000 per form per year and keeps the return open.
On this page
Who files — the categories
| Category | Who | Typical cross-border case |
|---|---|---|
| 1 (1a, 1b, 1c) | U.S. shareholders (10 percent or more) of a section 965 specified foreign corporation — any CFC, or a foreign corporation with a U.S. corporate 10 percent shareholder | A U.S. citizen owning a Canadian company (alongside categories 4 and 5) |
| 2 | U.S. officers or directors of a foreign corporation when a U.S. person acquires 10 percent | A U.S. citizen director of a Canadian company |
| 3 | U.S. persons who acquire or dispose of 10 percent, or become U.S. persons while owning 10 percent | A Canadian owner who moves to Florida |
| 4 | U.S. persons who control the foreign corporation (more than 50 percent) | A U.S. citizen owning their Canadian company |
| 5 (5a, 5b, 5c) | U.S. shareholders (10 percent or more) of a controlled foreign corporation who own the stock on the last day of its tax year | A U.S.-resident minority owner of a Canadian CFC |
A single filer is often in several categories at once — a U.S. citizen who wholly owns a Canadian company is typically category 1a, 4, and 5a — and files one Form 5471 carrying every schedule any of those categories requires. Category 4 carries the fullest set (including schedules C, F, and M); category 2 files only the identifying information and schedule O, Part I; the "b" and "c" subcategories cover shareholders of foreign-controlled CFCs and file reduced schedules.
What it reports
The corporation's income statement and balance sheet in U.S. dollars and adjusted to U.S. GAAP (schedules C and F, with schedule H converting income to earnings and profits), its shareholders (schedule B), transactions with related parties (schedule M), earnings and profits and previously taxed earnings accounts (schedules J and P), and the shareholder's subpart F income and tested income (schedules I and I-1, feeding the net CFC tested income — formerly GILTI — computation on Form 8992). The Canadian corporation's financial statements are the starting point, converted.
Penalties and the open statute
The penalty is US$10,000 per form per year (section 6038(b)), plus US$10,000 for each 30-day period the failure continues more than 90 days after an IRS notice (up to US$50,000 more), and a 10 percent reduction in foreign tax credits (section 6038(c)). The IRS assesses these automatically, and the D.C. Circuit (Farhy, 2024) and the Second Circuit (Safdieh, 2026) have upheld that. More importantly, the statute of limitations on the entire U.S. return stays open until three years after the form is filed (section 6501(c)(8)) — limited to the items related to the missing form if the failure was due to reasonable cause — so a missed Form 5471 years ago means those years remain open.
Catching up
U.S. persons who missed Form 5471 for a Canadian corporation often use the delinquent international information return submission procedures (still available, though penalties aren't automatically waived — the IRS says they "may be assessed") with a reasonable-cause statement, or the streamlined procedures if income was also unreported and the failure was non-willful.
Frequently asked questions
Do I need to file Form 5471 for my Canadian corporation?
Yes, if you're a U.S. person (citizen, green card holder, or resident) who controls it, owns 10 percent or more of it while it's a CFC, acquires or disposes of a 10 percent stake, or serves as an officer or director when a U.S. person acquires 10 percent.
What is the Form 5471 penalty?
US$10,000 per form per year, with additional penalties after an IRS notice, and the statute of limitations on the whole return stays open until it's filed.
Does Form 5471 mean I owe U.S. tax on my company's profits?
Not necessarily — it reports them. Subpart F and net CFC tested income (formerly GILTI) inclusions may create tax; the high-tax exclusion and section 962 election often reduce it.
Can I file late without penalties?
Possibly — the delinquent international information return procedures with a reasonable-cause statement are the usual route, but penalties aren't automatically waived, so the reasonable-cause statement does the work.
Official sources
The IRS instructions for Form 5471 state: “A $10,000 penalty is imposed for each annual accounting period of each foreign corporation for failure to furnish the information required by section 6038(a) within the time prescribed.” — Internal Revenue Service, Instructions for Form 5471 (12/2025), https://www.irs.gov/instructions/i5471
Next step
Fairlight Accounting is a cross-border accounting and tax practice with a U.S. Tax Desk and a Canadian Tax Desk. Our U.S. Tax Desk and Canadian Tax Desk handle Form 5471 preparation for U.S. owners of Canadian corporations, filer category analysis, financial statement conversion to U.S. principles, delinquent filing procedures, and reasonable-cause statements. See pricing or book a call.
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