Through FinCEN's BOI E-Filing portal at boiefiling.fincen.gov. Anonymousllc.co's BOI Initial Filing service ($150) handles the filing on behalf of foreign reporting companies or any owner choosing to file voluntarily.

FinCEN Final Rule (31 CFR 1010.380)

Q: What is 31 CFR 1010.380?

The FinCEN regulation implementing the Corporate Transparency Act (31 USC § 5336). It defines reporting companies, beneficial owners, company applicants, and the form/content/deadlines of BOI reports filed at boiefiling.fincen.gov.

Q: Do US LLCs still have to file BOI after March 2025?

No. The March 21, 2025 Interim Final Rule (90 FR 13688) exempted domestic reporting companies — US LLCs, US corps, etc. — from BOI reporting. Foreign reporting companies (non-US entities registered in a US state) still must report.

Q: Who counts as a beneficial owner?

Any individual exercising substantial control or owning/controlling at least 25% of the company. 31 CFR 1010.380(d) defines substantial control broadly: senior officers, decision-makers, and those with power to appoint/remove senior officers.

Q: What are the penalties for not filing BOI?

31 USC § 5336(h): civil penalty $591/day (inflation-adjusted) for ongoing non-compliance, criminal fines up to $10,000, and up to 2 years imprisonment for willful violations. After March 2025, these apply only to foreign reporting companies.

FinCEN Final Rule (31 CFR 1010.380) — Anonymousllc.co's 2026 reference. Covers the rule, the controlling statute or regulation, common questions, and how Anonymousllc.co handles it in practice. Primary-source citations linked throughout.

By Alif Al Razi, Tax & Compliance Lead · Last updated 2026-05-21

Primary source — FinCEN — Beneficial Ownership Information Reporting Rule

31 CFR 1010.380

Implementing regulation for 31 USC § 5336 (Corporate Transparency Act). Final rule published Sept. 30, 2022 (87 FR 59498); originally effective Jan. 1, 2024.

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FinCEN Beneficial Ownership Information Final Rule

FinCEN's Beneficial Ownership Information Reporting Rule is codified at 31 CFR 1010.380. It implements the Corporate Transparency Act (31 USC § 5336) and originally required most US LLCs, corporations, and similar entities to report beneficial owner information to FinCEN. The March 2025 Interim Final Rule narrowed the scope dramatically — domestic reporting companies are now exempt.

Sources

31 CFR 1010.380 — Implementing regulation
31 USC § 5336 — Corporate Transparency Act

Who must report (after March 2025 IFR)

After the March 21, 2025 Interim Final Rule (90 FR 13688), FinCEN narrowed reporting obligations to FOREIGN reporting companies only — entities formed under non-US law that register to do business in any US state or tribal jurisdiction. Domestic reporting companies (US LLCs, US corps) are now EXEMPT from BOI reporting.

Sources

FinCEN March 2025 IFR (90 FR 13688) — Narrowed scope

Required information

For each beneficial owner: full legal name, date of birth, current residential address, unique ID number (passport, driver's license, etc.) and an image of the ID. For each company applicant (foreign reporting companies): same fields. Reports are filed via FinCEN's BOI E-Filing portal at boiefiling.fincen.gov.

Beneficial owner — 25% rule

A beneficial owner is any individual who (1) exercises substantial control over the reporting company OR (2) owns or controls at least 25% of the ownership interests. 31 CFR 1010.380(d) defines substantial control to include senior officers, the power to appoint or remove senior officers, or important decision-making authority.

Deadlines (for foreign reporting companies still in scope)

Foreign reporting companies registered before March 26, 2025 had until April 25, 2025 to file initial BOI report. Foreign reporting companies registering on or after March 26, 2025: 30 days from registration. Updates: 30 days from any change. Anonymousllc.co's BOI filing service ($150) handles foreign reporting companies and any voluntary filings.

Civil and criminal penalties

31 USC § 5336(h) sets penalties: civil $591/day (inflation-adjusted) for ongoing non-compliance, plus criminal fines up to $10,000 and 2 years imprisonment for willful violations. Domestic reporting companies are now exempt, so these penalties do not apply to standard US LLCs; foreign reporting companies still face them.