If your company is entering the United States—or already operating there and scaling—there is one compliance item you should have well organized from day one: beneficial ownership information (BOI) under the Corporate Transparency Act (CTA).
Although the CTA was designed to combat the use of shell companies for money laundering and fraud, it has a very practical impact on structures that are common for Spanish businesses: registering a foreign company to do business in the U.S. or entering the market through a U.S. affiliate.
1) The key takeaway: today the focus is on “foreign reporting companies”
In March 2025, FinCEN (the U.S. Treasury bureau that runs the BOI system) issued an interim final rule that materially changed the scope: entities formed in the U.S. (formerly “domestic reporting companies”) are now exempt from BOI reporting.
However, for many Spanish companies, the relevant case remains the foreign entity that registers to do business in a U.S. state (for example, a Spanish S.L. that “qualifies” to do business in Florida). FinCEN refers to these as reporting companies formed under foreign law and registered to do business in the U.S.
Practical translation: if your structure includes a Spanish company registered in Florida to operate there, it is very likely that you have BOI obligations (unless a specific exemption applies, which must be assessed case by case).
2) Who is a “beneficial owner” and what must be reported?
The interim rule did not change the definition of beneficial owner. In practice, you typically look at:
- Individuals who exercise “substantial control” over the entity, and/or
- Individuals who own or control 25% or more (directly or indirectly).
A BOI filing includes information about the entity (identification, jurisdiction of formation, state of registration, TIN/EIN, etc.) and about the applicable beneficial owners.
One relevant nuance introduced by the interim rule: BOI of U.S. persons is not reported, and U.S. persons are exempt from providing BOI with respect to a reporting company.
3) Deadlines: what to watch in 2026
The major “catch-up” deadlines (April 2025) are already in the past for companies that were registered at that time. But for Spanish companies that register now or that are expanding into additional states/structures, the key point is this:
If your foreign entity becomes a “reporting company” on or after March 26, 2025, it must file its BOI within 30 days of receiving actual notice that its registration is effective (or of public notice, as applicable).
In other words: for a Florida go-to-market (or any other state), BOI is not something to “handle later” — it belongs on the same list as EIN, bank account, baseline contracting and core compliance.
4) Typical risks (and how to avoid them)
In practice, issues usually arise for three reasons:
- Not mapping beneficial ownership correctly in group structures. Holding companies, indirect ownership, control rights, de facto management, etc.
- Leaving BOI out of the market-entry/change checklist. For example, qualifying a foreign entity in a state and failing to calendar the 30-day deadline.
- Falling for scams. FinCEN has warned about fraudulent requests for BOI or payments: there is no fee to file BOI directly with FinCEN, and you should be skeptical of emails, links or “forms” that are not clearly official.
5) A practical approach for Spanish companies
To keep it business-friendly without losing rigor, this approach tends to work well:
- Define the true ownership and control chart before registering/operating.
- Build BOI into the entry timeline (EIN / bank / contracts / BOI).
- Supporting records (IDs, addresses, internal documentation) for future updates.
- Validate exemptions: do not assume—document and assess carefully.
Conclusion:
For most businesses pursuing an orderly expansion, the prudent approach is to treat BOI as a live compliance requirement and manage it with the same discipline as any other regulatory step in entering the U.S. market.
