BOI Filing for Foreign-Owned US Entities: 5 Essential Rules

BOI Filing Rules Have Changed: What CPA Firms Need to Know Now

BOI filing requirements shifted significantly in March 2025. At BusAcTa Advisors, we work with CPA firms across the US who serve clients with complex ownership structures, and the questions about Beneficial Ownership Information reporting haven't slowed down since FinCEN published its interim final rule. The confusion is understandable. The rules changed more than once, courts issued injunctions, and now the landscape looks very different from where things started in January 2024.

Here's the short answer your clients need: if their company was formed in the United States, BOI filing is no longer required. If their company was formed in a foreign country and then registered to do business in a US state, BOI filing is still mandatory. That distinction is the whole game right now, and getting it wrong exposes your clients to civil penalties of up to $591 per day of non-compliance.

This guide covers the 5 essential rules that determine whether your clients must file, who qualifies as a beneficial owner, and what the current deadlines actually are.

This is general information, not legal or tax advice for a specific situation. Consult a qualified attorney or compliance professional regarding your client's specific facts.

Rule 1: Where the Entity Was Formed, Not Who Owns It, Determines BOI Filing Obligation

This is the most important rule, and it catches a lot of advisors off guard. The BOI filing obligation depends on where the entity was legally formed, not on the citizenship or residency of its owners.

A non-US citizen, say an Indian entrepreneur or a UK investor, who forms an LLC or corporation in Delaware, Wyoming, or any other US state owns a domestic entity. That entity is now fully exempt from BOI reporting under FinCEN's March 2025 interim final rule. The owner's nationality doesn't change that analysis.

FinCEN revised the definition of "reporting company" to mean only entities formed under the law of a foreign country that have registered to do business in a US state or tribal jurisdiction. Domestic entities, regardless of who owns them, are out of scope.

The BOI filing obligation follows the entity's birth certificate, not its ownership chart. A Delaware LLC owned entirely by foreign nationals is exempt. An Indian Pvt. Ltd. registered in California is not.

Your clients who formed US LLCs or corporations and have been waiting to file, or who paid for compliance services expecting a filing requirement, can stand down. No action is needed from them under current rules. Direct them to offshore accounting services if they need ongoing compliance support for their US entity's books.

Rule 2: Foreign Entities Registered in the US Must Still File, With Updated Deadlines

If your client's company was formed under the laws of another country and then registered to do business in a US state by filing with a Secretary of State or similar office, that entity is a foreign reporting company. BOI filing is still mandatory for these entities, and FinCEN is enforcing the requirement.

The deadlines that apply depend on when the foreign entity registered in the US:

• Foreign entities registered in the US before March 26, 2025, had until April 25, 2025, to file their initial BOI report.

• Foreign entities that registered on or after March 26, 2025, have 30 calendar days from the date their registration becomes effective to file.

• If any beneficial ownership information changes after the initial filing, the entity has 30 days from the date of that change to file an updated report.

If your client's foreign-registered entity missed the April 25, 2025 deadline, that's a conversation you need to have now. FinCEN can assess civil penalties of up to $591 per day for each day the violation continues, plus criminal penalties of up to two years' imprisonment and fines up to $10,000 for willful violations.

A missed BOI filing deadline on a foreign reporting company isn't a paperwork issue. At $591 per day, 90 days of non-compliance costs over $53,000 in civil penalties alone.

Rule 3: Understanding Who Counts as a Beneficial Owner Under the Current Rules

For foreign reporting companies that do need to file, the definition of beneficial owner matters. A beneficial owner is any individual who, directly or indirectly, either exercises substantial control over the entity or owns or controls at least 25% of its ownership interests.

Substantial control is broader than most clients expect. It covers senior officers, individuals who have authority to appoint or remove senior officers or a majority of directors, and anyone else with significant decision-making authority over major business matters.

Here's the rule change that affects many clients: foreign reporting companies are no longer required to report US persons as beneficial owners. Under the March 2025 interim final rule, if a beneficial owner of a foreign reporting company is a US person (citizen, green card holder, or US tax resident), that person's information does not need to be included in the BOI report. Only non-US beneficial owners need to be disclosed.

Your offshore tax preparation team should flag any client with a foreign entity structure for this analysis before any BOI report goes out.

Rule 4: What the BOI Report Must Actually Include

When a foreign reporting company does file, the report must include two categories of information: company information and beneficial owner information.

For the company itself, the report requires:

• Legal name, including any trade names or DBA names used

• Current business address in the US (principal place of business)

• State or jurisdiction of formation (the foreign country) and the US state where it registered

• Taxpayer Identification Number, typically an EIN for US-registered entities

For each non-US beneficial owner, the report requires:

• Full legal name and date of birth

• Current residential address

• A unique identifying number from an acceptable identification document, such as a passport, plus an image of that document

Filing is done electronically through FinCEN's BOSS (Beneficial Ownership Secure System) portal at boiefiling.fincen.gov. There is no fee to file directly with FinCEN. Any service charging a FinCEN filing fee is a red flag, and FinCEN has specifically warned about fraudulent correspondence related to BOI.

Rule 5: What Your Firm's Role Is, and Isn't, in BOI Compliance

CPA firms occupy a specific, and sometimes uncomfortable, position in the BOI compliance space. You're not required to file on behalf of clients. You're also not automatically on the hook if a client fails to file. But your clients will ask you whether they need to file, and getting that analysis wrong creates liability exposure for the firm.

In our view, the biggest mistake CPA firms make right now is treating BOI as someone else's problem. Clients trust their CPA for compliance guidance across the board. If a client with a foreign entity registered in California asks whether they need to file a BOI report and your firm says no without analyzing the entity's formation country, that's a problem.

What CPA firms should build into their workflow:

• Ask every business client whether any entity in their structure was formed outside the US and registered in a US state

• Identify whether a filing deadline has already passed for that entity

• Refer clients to a qualified attorney for the actual legal compliance analysis when the structure is complex

• Document the advice your firm gave and when

If your firm handles clients with foreign entity structures and you need bandwidth to add compliance reviews to your workflow, hiring a dedicated offshore accountant through BusAcTa can free up your senior staff for exactly this kind of higher-value work. The virtual CFO service is another route for clients who need ongoing structural compliance oversight.

BOI analysis isn't a one-time task. If a client's ownership changes by 25% or more, a new filing is due within 30 days. Build that into your annual review checklist.

The Bigger Picture: BOI Filing in the Context of Offshore Accounting

Clients with foreign-owned US entities often have more complex accounting needs than the average domestic small business. They may deal with intercompany transactions, transfer pricing considerations, foreign bank account reporting obligations under FBAR, and multi-currency bookkeeping. BOI compliance is typically one piece of a larger picture for these clients.

CPA firms that serve this client segment know the value of having a reliable offshore accounting team behind the scenes. Your clients' trial balances don't change because of a FinCEN rule update, and neither does the volume of reconciliation, accounts payable, accounts receivable, and general ledger work that underlies every compliance filing. That's where BusAcTa Advisors has helped CPA firms reduce their overhead by 40 to 60% compared to domestic hiring, with named professionals who understand US GAAP and the tax implications that come with foreign-owned entities.

The rules around BOI filing will keep evolving. FinCEN has committed to issuing a final rule in 2025, and there's active Congressional debate about whether to reimpose requirements on domestic companies with foreign beneficial owners. Staying current on these changes is part of the job for any firm serving internationally connected clients.

You can review the current interim final rule directly on the FinCEN BOI reporting page, which is the only source your firm should rely on for compliance deadlines. Don't use secondary sources for filing decisions.

What Your Firm Should Do Before the Next Client Meeting

BOI filing is no longer a broad requirement that applies to most small businesses. It's now narrowly targeted at foreign entities registered to do business in the US, and the deadlines for those entities have already passed for registrations made before March 26, 2025. If any of your clients have a foreign entity in their structure, that conversation needs to happen now, not at year-end.

The firms that handle this well build it into their client intake and annual review process, ask the formation-country question early, and refer out the legal analysis when it gets complex. If your team needs more capacity to add these reviews without dropping the ball on existing client work, schedule a scoping call with BusAcTa Advisors and we'll show you how a dedicated offshore accounting team can give your licensed staff the room they need to handle higher-value compliance work.