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Form 5471 Explained: Reporting Foreign Corporations
Form 5471 is the IRS information return that certain U.S. persons file to report their ownership in, or officer and director roles with, a foreign corporation. It carries no tax on its own, but the numbers it discloses drive how a U.S. shareholder gets taxed on Subpart F income and GILTI (renamed Net CFC Tested Income for tax years beginning after December 31, 2025). Missing it costs $10,000 per form, per year, before any tax is even owed.
The form satisfies the reporting duties in Internal Revenue Code sections 6038 and 6046. It attaches to your income tax return, not to a separate filing. Which of its up to six pages and many schedules you complete depends entirely on which filer category you fall into, and a single person can land in more than one.
What Is Form 5471 and Who Must File It
Form 5471 is an information return for U.S. citizens, residents, and entities connected to a foreign corporation as an officer, director, or shareholder. It reports ownership, income, earnings, and transactions of that corporation. Filing is triggered by role or ownership level, not by whether the corporation distributed cash or owes U.S. tax.
You attach the form to your Form 1040, 1120, 1065, or exempt organization return and file both by that return’s due date, including extensions. Each foreign corporation generally needs its own Form 5471.
The form ties into the broader pass-through and international rules that also drive filings like the Schedule K-1 partners receive. Ownership is measured directly, indirectly (through entities), and constructively (through family and related parties), so people who own no shares on paper can still have to file.
The Controlled Foreign Corporation Context
A controlled foreign corporation (CFC) is a foreign corporation in which U.S. shareholders together own more than 50% of the total voting power or total value of the stock. For this test, a “U.S. shareholder” is a U.S. person who owns 10% or more of the corporation’s vote or value.
The CFC label matters because it flips on two anti-deferral regimes. U.S. shareholders of a CFC can be taxed on the corporation’s income currently, even with no dividend paid.
- Subpart F income: passive and mobile income (dividends, interest, rents, certain related-party sales and services) taxed to the U.S. shareholder in the year the CFC earns it.
- GILTI / Net CFC Tested Income: most remaining active earnings above a routine return, taxed currently to 10% shareholders. GILTI was renamed Net CFC Tested Income (NCTI) under the One Big Beautiful Bill Act for tax years beginning after December 31, 2025.
Both regimes can create “phantom income,” meaning tax on money that never left the foreign corporation. Subpart F is computed first, then that income is excluded from the tested income that feeds GILTI/NCTI, so the two do not double count.
How Subpart F and GILTI Flow Through the Form
Form 5471 reports the figures, then other forms compute the tax. Schedule I on Form 5471 summarizes the Subpart F and related inclusions passing to the U.S. shareholder. GILTI/NCTI is computed at the shareholder level, drawing on the CFC’s tested income reported on the form, and lands on Form 8992.
Think of Form 5471 as the disclosure layer. It shows the IRS the CFC’s earnings and profits, income by category, and inter-company transactions. Separate forms then turn those disclosures into taxable inclusions on the shareholder’s return.
Because these inclusions can arise without a distribution, tracking basis and earnings matters. Shareholders of pass-through and closely held structures often manage parallel basis issues, similar to the S corporation shareholder basis rules that limit losses.
The Five Filer Categories
Form 5471 has five numbered filer categories, several with sublabels (1a to 1c, 5a to 5c), and one person can occupy more than one at once. The category you fall into decides which schedules you complete, from a single Schedule O up to all six pages plus a stack of separate schedules.
The table below summarizes the trigger for each category. Ownership can be direct, indirect, or constructive under the section 958 rules.
| Category | Who it applies to | Core trigger | Typical filing depth |
|---|---|---|---|
| 1 (1a, 1b, 1c) | U.S. shareholders of a section 965 specified foreign corporation (SFC) | Owned 10%+ of an SFC on the last SFC day of the year | Full form and most schedules; sublabels split related vs. unrelated shareholders |
| 2 | U.S. officers or directors of a foreign corporation | A U.S. person acquires 10%+ (or an added 10%+) of the corporation’s stock | Schedule O only |
| 3 | U.S. persons acquiring or disposing of stock | Cross the 10% ownership line up or down, or become a U.S. shareholder | Schedule O plus core pages |
| 4 | U.S. persons who control the corporation | Own more than 50% of vote or value at any time during the year | All six pages and most separate schedules |
| 5 (5a, 5b, 5c) | U.S. shareholders of a controlled foreign corporation (CFC) | Own 10%+ of a CFC; primary category for Subpart F and GILTI/NCTI | Full form; sublabels split related vs. unrelated shareholders |
Category 4 (control) and Category 5 (CFC shareholder) carry the heaviest reporting, because they capture the people whose share of the CFC’s income is taxable currently. A sole owner of a CFC is usually both a Category 4 and Category 5a filer and completes the entire form.
The $10,000 Penalty for Failure to File
Failing to file a complete, accurate Form 5471 on time triggers a $10,000 penalty per form, per foreign corporation, per year under section 6038(b). This applies even when no U.S. tax is due, because it penalizes the missing information, not an unpaid balance.
If the failure continues after the IRS mails notice, an additional $10,000 accrues for each 30-day period (or fraction) that noncompliance runs, capped at $50,000 in continuation penalties. Combined with the initial $10,000, a single unfiled form can reach $60,000 for one year.
Other consequences can stack on top: a reduction of available foreign tax credits, and an open statute of limitations on the entire return until the form is filed, which can keep tax years auditable for years. Reasonable-cause relief may apply in some cases, depending on the facts, and voluntary and streamlined filing programs may reduce exposure for taxpayers who come forward. Penalty outcomes vary by circumstance.
Filing Deadlines and Simplified Options
Form 5471 is due with your income tax return, including extensions, so an individual’s form generally follows the April deadline (October with an extension). There is no separate mailing or fee for the form itself.
A dormant foreign corporation may qualify for a summary filing procedure under Revenue Procedure 92-70, letting the filer complete only page 1 rather than the full form. This does not remove the obligation; it simplifies it. Missing the dormant criteria means the standard rules and penalties still apply.
For related U.S. tax-professional authority questions, such as authorizing someone to represent you on an international filing matter, see how to use Form 2848 for power of attorney.
Frequently Asked Questions
Does filing Form 5471 mean I owe U.S. tax?
Not directly. Form 5471 is an information return with no tax calculated on it. Tax can arise separately if you are a U.S. shareholder of a CFC and have Subpart F income or GILTI/NCTI inclusions, which are computed on other forms such as Form 8992. Many filers report on Form 5471 yet owe little or nothing, especially where foreign tax credits offset the inclusion.
What is the difference between a foreign corporation and a CFC?
A foreign corporation is any corporation organized outside the United States. It becomes a controlled foreign corporation (CFC) when U.S. shareholders, each owning 10% or more of vote or value, together own more than 50% of the corporation. The CFC status is what turns on current U.S. taxation of Subpart F income and GILTI/NCTI for 10% U.S. shareholders, and it usually places owners in Category 5.
Can one person be in more than one filer category?
Yes. The categories overlap by design, and a single filer often satisfies several at once. A sole owner of a CFC is commonly both a Category 4 filer (more than 50% control) and a Category 5a filer (10%+ CFC shareholder), and completes the full form once covering all applicable categories rather than filing multiple forms for the same corporation.
How much is the penalty for not filing Form 5471?
The initial penalty is $10,000 per form, per foreign corporation, per year under section 6038(b), even if no tax is owed. If noncompliance continues after IRS notice, an added $10,000 accrues for each 30-day period, up to $50,000, for a possible $60,000 total per year. Foreign tax credits can also be reduced, and the return’s statute of limitations may stay open.
Do I still file if my foreign corporation is dormant?
Usually yes, but you may use a simplified path. A dormant foreign corporation can qualify for the summary filing procedure under Revenue Procedure 92-70, which lets you complete only page 1 of Form 5471 instead of the full form. The corporation must meet specific dormancy criteria. If it does not qualify, the standard category rules and full penalty exposure apply.
What has changed with GILTI on Form 5471 recently?
GILTI was renamed Net CFC Tested Income (NCTI) under the One Big Beautiful Bill Act, effective for tax years beginning after December 31, 2025, and the underlying computation changed, including the removal of the routine-return (QBAI) offset. Form 5471 still reports the CFC-level income that feeds the shareholder’s NCTI calculation, so the reporting role of the form continues while the downstream tax math shifts.
Reviewed by The Ledgerism Editorial Team. Last reviewed: July 2026.