Form 8858 — Foreign Disregarded Entities and Branches
Reviewed by the Fairlight Accounting cross-border tax team — U.S. & Canadian Tax Desks
Form 8858 is the U.S. information return for a foreign disregarded entity — a foreign company with one owner that the U.S. treats as transparent — and for a foreign branch, a business a U.S. person operates abroad without a separate entity. Neither pays U.S. tax itself; the income lands on the owner's return. The form lets the IRS see the foreign operation behind it.
On this page
Who has to file Form 8858?
- A U.S. person who owns a foreign disregarded entity — typically a single-owner foreign company (a U.K. Ltd, a German GmbH, an Israeli Ltd) for which a check-the-box election has been made, or a foreign entity type that is disregarded by default.
- A U.S. person who operates a foreign branch — a trade or business conducted abroad through a fixed place of business, directly or through a disregarded entity, without a separate foreign corporation. This category was added in 2018 and catches many self-employed expats who never thought of their consultancy as a "branch."
- Certain U.S. shareholders of a controlled foreign corporation or partners of a controlled foreign partnership that itself owns a foreign disregarded entity or branch — in which case Form 8858 attaches to that entity's Form 5471 or 8865.
What does the form report?
An income statement and balance sheet for the entity or branch, in its functional currency and translated to dollars; the owner's details; transactions between the entity and its owner or related parties (Schedule M); and information needed for the foreign tax credit, including taxes paid and the foreign branch basket. The entity's income itself is reported on the owner's return — Schedule C for an individual's business — not on Form 8858.
How does it attach to my return?
For an individual owner, Form 8858 attaches to Form 1040 and is due with it, including extensions. If the disregarded entity is owned through a controlled foreign corporation or partnership, it attaches to the owner's Form 5471 or 8865 instead. One Form 8858 is filed per entity or branch, per year.
What is the penalty for not filing?
$10,000 per form per year, plus continuation penalties if the IRS requests it and it still isn't filed, and a reduction in foreign tax credits for the related income. As with other international information returns, the penalty doesn't depend on any tax being owed, and the statute of limitations on the return can stay open until the form is filed. Late forms with a reasonable-cause statement, or filed through the Streamlined procedures, are the usual remedy.
Why does a one-person foreign company end up here?
Because the check-the-box election that simplifies a foreign company for U.S. purposes — moving its income onto Schedule C and avoiding the controlled-foreign-corporation rules — converts it into a foreign disregarded entity. Form 5471 goes away; Form 8858 takes its place. It is the lighter of the two forms, but it is not optional.
How does the foreign branch basket affect my credit?
Income of a foreign branch or disregarded entity falls into its own foreign tax credit category, separate from general and passive income. Foreign tax paid by the entity is credited only against U.S. tax on income in that basket. For a self-employed expat this rarely changes the result, but it does mean a separate Form 1116.
Frequently asked questions
I'm a freelancer abroad with no company. Do I file Form 8858?
If your business operates through a fixed place of business abroad — an office, a studio, even a dedicated home office in some readings — it may be a foreign branch and reportable. Many practitioners file to be safe; the penalty for not filing is large and the form is short.
My foreign company is owned 50/50 with my spouse. Is it disregarded?
Not unless you file jointly and elect to treat it as owned by one taxpayer. Two owners generally make it a partnership for U.S. purposes — Form 8865 territory.
Does Form 8858 replace the FBAR for the company's bank account?
No. The entity's accounts are still reportable on the FBAR and Form 8938 if you own more than half of the entity or have signature authority.
Can I file Form 8858 late without penalty?
Attach a reasonable-cause statement; penalties are often abated for first-time, non-willful omissions. Multiple missed years fit the Streamlined procedures.
Next step
Fairlight Accounting handles U.S. domestic, cross-border (U.S.–Canada), and international tax returns, plus bookkeeping, payroll, and CFO advisory. If you own a foreign company treated as disregarded, or run a business abroad directly, our team can determine whether Form 8858 applies and prepare it with your return. See pricing or book a free fit call.
Cross-border taxes, handled in one place
U.S. and Canadian filings prepared together by our U.S. and Canadian Tax Desks.
Book a free fit call