Does CFIUS Apply to Forming a US LLC or C-Corp as a Foreign Founder?

Foreign founders researching US company formation sometimes encounter references to the Committee on Foreign Investment in the United States (CFIUS) and, understandably, wonder whether it applies to them. It is a reasonable question — CFIUS is a real, active US government body with genuine authority over certain foreign investment, and confusing “foreign investment review” in general with the specific, narrower scope of CFIUS’s actual jurisdiction is an easy mistake to make.

The direct answer: forming a new US LLC or C-Corp from scratch — with no acquisition of an existing US business — does not, under current law, trigger CFIUS review. This article explains why, based on CFIUS’s actual statutory and regulatory scope, and separately addresses proposed changes that could affect this in the future.

What CFIUS actually reviews

CFIUS is an interagency committee, chaired by the US Department of the Treasury, authorized to review certain transactions involving foreign investment into United States businesses for national security concerns. Its authority is not a general review of all foreign business activity in the US — it is triggered specifically by defined “covered transactions.”

For CFIUS jurisdiction to apply, two conditions are generally required:

• A “foreign person” must be on the acquiring side of the transaction — defined broadly to include foreign nationals, foreign governments, foreign entities, or any entity over which a foreign national, government, or entity exercises control.
• There must be an acquisition of “control” over an existing US business, or, under expanded rules adopted following the 2018 Foreign Investment Risk Review Modernization Act (FIRRMA), certain defined non-controlling investments in US businesses involved in critical technology, critical infrastructure, or sensitive personal data.

The operative concept in both cases is acquisition of an existing US business — CFIUS’s jurisdiction is built around a foreign person obtaining an interest in something that already exists.

Why forming a new LLC or C-Corp falls outside this scope

Establishing a new US company — sometimes referred to in this context as a “greenfield investment” — means creating new operations in the United States without acquiring or investing in an existing US business. There is no existing entity being acquired, no transfer of control over anything pre-existing, and consequently no “covered transaction” for CFIUS to review.

This is not a gap or an oversight in CFIUS’s design — it reflects the underlying purpose of the regime, which is to review the risk associated with a foreign person gaining access to or control over an existing US business, its assets, technology, or data. A founder forming a new company from nothing has not acquired access to anything that did not already belong to them.

This position — that greenfield investments fall outside CFIUS’s jurisdiction absent some additional basis — reflects CFIUS’s consistent, long-standing scope, not a recent or contested interpretation.

When CFIUS could become relevant to a foreign founder’s US company

The distinction that matters is between forming a company and acquiring one. CFIUS becomes relevant in scenarios such as:

• The US entity later acquires an existing US business — for example, a foreign founder’s US LLC later purchases an operating US company, its assets, or a controlling stake in it. That acquisition, not the original LLC formation, is what could trigger CFIUS review.
• A foreign person takes a controlling or certain defined non-controlling stake in an existing US company, particularly one operating in critical technology, critical infrastructure, or sensitive personal data — sectors subject to expanded CFIUS jurisdiction under FIRRMA.
• Real estate transactions near certain sensitive government or military facilities — a distinct and separately expanding area of CFIUS jurisdiction, addressed under its real estate authority rather than its business-acquisition authority, and unrelated to company formation itself.
• Restructurings involving an existing US business, even where ultimate ownership does not change — for instance, inserting a new foreign holding company above an existing US business can, in some cases, itself constitute a covered control transaction.

None of these scenarios describe the act of forming a new LLC or C-Corp itself; they describe subsequent transactions a foreign-owned company might undertake.

Proposed changes worth monitoring — not current law

Foreign founders should be aware that CFIUS’s scope regarding greenfield investments has been the subject of policy proposals, though none had been enacted as of November 2026:

• A White House policy memorandum has called for the US Treasury to consider expanding CFIUS authority specifically over greenfield investments, aimed at restricting foreign access to sensitive US technologies, including artificial intelligence and other emerging and foundational technologies.
• Separate proposed legislation in the US Senate would grant CFIUS expanded authority to review both greenfield and “brownfield” investments specifically from China and other countries the US designates as countries of concern.

Neither of these represents current, enacted law. They are policy directives and proposed legislation calling for potential future rulemaking or congressional action. As of November 2026, the greenfield exception described above remains the operative rule. Founders — particularly those from countries that may be characterized as posing heightened national security concern in future rulemaking, or those whose business involves AI, other sensitive technologies, or critical infrastructure — should monitor this area, as it is one of active policy attention rather than settled, static law.

What this means practically for most international founders

For the overwhelming majority of international founders forming a US LLC or C-Corp to run a software business, e-commerce operation, agency, or similar company from scratch, CFIUS has no bearing on the formation process itself. Company formation, EIN acquisition, banking, and standard federal and state compliance obligations proceed independently of CFIUS, which has no role in and imposes no requirement on the formation of a new entity.

Founders whose business plans involve acquiring an existing US company, taking a stake in a US business operating in a sensitive sector, or restructuring an existing US business’s ownership should treat that specific transaction — not their original company formation — as the point at which CFIUS analysis becomes relevant, and should consult counsel experienced in CFIUS matters before proceeding with that transaction.

FAQ

Does CFIUS apply if I form a US LLC and it’s 100% foreign-owned?

Not on that basis alone. Foreign ownership of a newly formed company is not, by itself, a CFIUS-covered transaction. CFIUS jurisdiction depends on the acquisition of an existing US business, not simply on foreign ownership of a new one.

Do I need to file anything with CFIUS when forming my company?

No. There is no CFIUS filing associated with the formation of a new LLC or C-Corp with no acquisition of an existing US business involved.

Is CFIUS the same as BOI reporting or Form 5472?

No — these are entirely separate regimes administered by different agencies. CFIUS (Treasury) reviews certain foreign investment transactions for national security purposes; BOI reporting (FinCEN) addresses beneficial ownership disclosure, and since 2025 applies only to companies formed outside the US; Form 5472 (IRS) addresses tax information reporting for foreign-owned entities. None of the three substitutes for or implies a requirement under the others.

If I later want to acquire an existing US company, should I plan for CFIUS in advance?

Yes — if an acquisition of an existing US business is part of the plan, particularly in a technology, infrastructure, or data-sensitive sector, consulting an attorney with CFIUS experience before structuring that transaction is advisable, since CFIUS analysis depends heavily on the specific sector, structure, and parties involved.

Does my home country affect whether CFIUS applies to my company formation?

Not for the act of formation itself, under current law. Country-specific considerations become more relevant in the context of an actual covered transaction (an acquisition), and in connection with the proposed policy changes noted above, which if enacted could specifically target investment from countries the US designates as countries of concern.

Cooperative is not a law firm and does not provide legal advice. This article describes CFIUS’s jurisdiction as understood from publicly available government and legal sources as of the date of publication. CFIUS’s scope is subject to ongoing policy attention and potential regulatory or legislative change; founders with transactions involving the acquisition of an existing US business, or operating in sensitive technology sectors, should consult a licensed attorney with CFIUS experience.