US Expat Tax · Form 5471
Form 5471: Americans who own a foreign company
Form 5471 is an information return that US persons who own or control a foreign corporation — such as a UK limited company — may have to file with their US tax return. The requirement is based on your role and ownership, not on whether the company made a profit, and the penalties for not filing are severe: a $10,000 base penalty per company per year, rising to as much as $60,000. Because the filing categories and related rules (including GILTI) are complex, this is specialist territory.
If you are a US citizen or green card holder who owns or controls a UK limited company — or sits as an officer or director of one — you may be required to file Form 5471 with your US tax return. It is the Information Return of US Persons With Respect to Certain Foreign Corporations, and it is one of the filings American business owners abroad most often miss.
The crucial point is that Form 5471 is an information return, not a tax return. You file it to report the company’s existence, ownership and finances — regardless of whether the business made a penny of profit. The obligation is driven by your role and ownership, not by the company’s performance. A dormant UK Ltd can still trigger it.
And this is the filing where getting it wrong hurts most. The penalties are among the harshest in the US tax code — starting at $10,000 per company per year and climbing from there — and they apply even if no US tax was ever owed. That combination of low awareness and high penalty is exactly why it deserves specialist attention.
Form 5471 at a glance
- Form
- Form 5471
- Type
- Information return
- Who
- US owners/officers of a foreign co.
- Filed with
- Your US tax return
- Base penalty
- $10,000 per co. per year
- Maximum
- Up to $60,000 per co. per year
Who may need to file Form 5471
- American founders and owners of UK limited companies
- Dual citizens who hold shares in a non-US company
- US persons who are directors or officers of a foreign corporation
- Green card holders with a significant stake in a UK or overseas business
- Anyone whose foreign company is dormant but still in existence
- US shareholders of a controlled foreign corporation (CFC)
Why the penalties are so serious
The IRS imposes a $10,000 penalty for each Form 5471 not filed on time, per foreign corporation, per year. If the failure continues after the IRS sends a notice, further penalties accrue for each 30-day period — up to a maximum of $60,000 per corporation per year. Own two companies, or miss two years, and the exposure multiplies quickly.
There is a quieter risk too: failing to file Form 5471 generally keeps the statute of limitations on your entire tax return open indefinitely. A year you would normally expect to “close” after the usual review window can stay open to the IRS for far longer — simply because one information form was missing.
When it is triggered
Form 5471 has several filing categories, and which one applies depends on your exact role — officer, director or shareholder — and your level of ownership or control. The categories are detailed and overlapping, and the related rules (including GILTI and Subpart F, which can tax company income in your hands before it is even distributed) add real complexity. We deliberately do not try to reduce that to a checklist here: the right answer depends on your specific facts, and this is precisely the kind of filing where a confident DIY guess is dangerous. The sensible step is a short assessment of your position.
Common mistakes we see
The recurring ones: assuming a small or dormant UK Ltd doesn’t count (it can); not filing because the company made no profit or owed no tax (irrelevant to an information return); overlooking the form entirely because a UK accountant, focused on UK filings, was never asked about US obligations; and being caught out by GILTI or Subpart F income that was never planned for. Each of these is avoidable with the right review.
How it fits your wider US filing
Form 5471 sits alongside your US tax return, and often alongside FBAR and FATCA reporting if the company or its accounts cross those thresholds. If you have already missed filings, Streamlined Filing is often the route to put it right without the full penalties.
How we handle it
The obligation, assessed and handled properly
Assess
We review your role, ownership and the company to determine whether — and under which category — you must file.
Check GILTI/Subpart F
We assess whether company income is taxable to you under GILTI or Subpart F, so there are no surprises.
Prepare
We prepare Form 5471 with the required schedules, filed with your US return and kept consistent with your other filings.
Fix the past if needed
If filings were missed, we advise on Streamlined or delinquent-return routes to limit or remove penalties.
Related areas we handle
Frequently asked questions
Form 5471 is the Information Return of US Persons With Respect to Certain Foreign Corporations. It is an information return — not a tax return — filed with your US tax return by US persons who own or control a foreign corporation, such as a UK limited company. It reports the company’s existence, ownership and financial activity to the IRS.
Possibly. If you are a US person who is an officer, director or significant shareholder of a UK limited company, you may fall into one of the Form 5471 filing categories. The requirement is based on your role and level of ownership or control, not on whether the company made a profit. Because the categories are detailed, this is something to confirm with a specialist rather than assume.
They are severe. The IRS imposes a $10,000 penalty for each Form 5471 not filed on time, per foreign corporation, per year. If the failure continues after the IRS sends notice, further penalties accrue, up to a maximum of $60,000 per corporation per year. These penalties apply even if the company owed no tax.
Yes. Form 5471 is an information return triggered by your ownership of the entity, not by its profitability. A dormant or loss-making foreign corporation still requires a filing — and the same penalties apply for not filing it.
Beyond the direct penalties, failing to file Form 5471 generally keeps the statute of limitations on your entire US tax return open indefinitely — meaning that year can remain open to IRS review far longer than the usual window. It can also affect your foreign tax credits. This is why it is one of the filings we treat most carefully.
GILTI (global intangible low-taxed income) and Subpart F are US rules that can tax certain income of a foreign corporation in the hands of its US owners, even before it is distributed. They frequently arise alongside Form 5471 for owners of UK companies and can be complex. We assess whether they apply as part of reviewing your position.
Own a UK company and hold US citizenship?
Form 5471 is one of the most heavily penalised filings in the US tax code — and easy to miss. Book a free consultation and we'll confirm whether you need to file and protect you from the penalties.