To identify the ultimate beneficial owner of a company, you trace its ownership and control upward through every layer of corporate structure until you reach the natural persons behind it, then apply two independent legal tests at each level: whether the individual owns or controls at least 25% of the entity, and whether the individual exercises substantial control over it. Either test alone is enough. Someone who holds no shares but directs the company’s major decisions is a beneficial owner just as surely as a 30% shareholder who never sets foot in a board meeting.
The work is part records review, part mapping exercise, part legal analysis. Done well, it produces a defensible list of individuals with the personal details a financial institution, investor, or regulator will expect to see.
The Two Tests That Define a Beneficial Owner
Federal regulations define a beneficial owner as any individual who either owns or controls at least 25% of a reporting company’s ownership interests, or who exercises substantial control over the company.1eCFR. 31 CFR 1010.380 – Reports of Beneficial Ownership Information The statutory definition in the Corporate Transparency Act uses the same framework.2Office of the Law Revision Counsel. 31 USC 5336 – Beneficial Ownership Information Reporting Requirements They are separate paths. A person can qualify through ownership, through control, or through both.
The 25% Ownership Test
Direct ownership is arithmetic. Indirect ownership is arithmetic through layers. If an individual owns 50% of Company A and Company A owns 60% of Company B, that individual indirectly owns 30% of Company B and clears the threshold. Multiply the percentages through every link in the chain, and do it for every branch, because a person can accumulate qualifying ownership through several intermediary entities that each fall short on their own.
The Substantial Control Test
Substantial control is broader than ownership and catches individuals who influence outcomes without necessarily holding shares. The regulations list four ways someone can exercise it:1eCFR. 31 CFR 1010.380 – Reports of Beneficial Ownership Information
- Serving as a senior officer. Presidents, CEOs, CFOs, general counsels, and COOs qualify automatically, along with anyone performing a similar function. A “secretary” or “treasurer” title alone does not meet the bar.
- Holding authority to appoint or remove senior officers or a majority of the board.
- Directing or substantially influencing important decisions, including the company’s business scope, major expenditures, significant contracts, mergers, dissolution, or senior officer compensation.
- Any other form of substantial control. This catch-all exists because creative corporate structures concentrate power in ways that resist neat classification.
Control can flow through intermediary entities, board representation, voting rights, financing arrangements, or informal relationships with nominees. Both formal and informal arrangements count.1eCFR. 31 CFR 1010.380 – Reports of Beneficial Ownership Information
Working Through the Identification Process
Start with the Entity’s Own Records
The most reliable data lives inside the company. The capitalization table shows who holds what percentage. Shareholder agreements and operating agreements reveal special voting rights, veto powers, and control mechanisms that never appear on a cap table. Articles of incorporation and bylaws establish the governance structure and identify who has authority over board appointments and officer selection. Read all of these before turning to external sources, because they are the most granular and current information you will find.
Pull Public Registry Information
State corporate registries list registered entities and their formation documents, typically including registered agents and sometimes initial directors or members. These records help you confirm the first layer of a chain but rarely reveal what sits above it.
FinCEN maintains the Beneficial Ownership Secure System, which holds the BOI reports foreign reporting companies file. Access is restricted to six categories of authorized users, including federal agencies engaged in law enforcement or national security, state and local law enforcement, certain foreign authorities, financial institutions verifying customer due diligence, federal regulators supervising those institutions, and Treasury employees.3Financial Crimes Enforcement Network. Fact Sheet: Beneficial Ownership Information Access and Safeguards Final Rule If you are a compliance officer at a regulated financial institution, you may be able to query the system for CDD purposes. Otherwise you will rely on entity-provided disclosures and public records.
Map the Ownership Chain
This is the analytical core of the exercise. Start at the target entity and trace upward through every immediate owner. Wherever an immediate owner is itself a legal entity, look inside it and repeat the process. Keep going until every branch terminates in a natural person.
At each layer, calculate both direct and indirect ownership percentages, and check separately for substantial control. An individual who owns 30% of Entity A, which owns 80% of the target, indirectly holds 24% of the target. That is below the 25% threshold, so ownership alone does not qualify them. But that same person might serve as the target company’s CEO or hold appointment power over its board, which would make them a beneficial owner on the control test independently. Both tests get applied to every candidate.
Apply the Legal Tests and Confirm Your List
Once the map is complete, run each candidate through both questions. Does this person directly or indirectly own or control 25% or more of the entity’s ownership interests? Does this person exercise substantial control through any of the four indicators? Anyone who meets either test is a beneficial owner.1eCFR. 31 CFR 1010.380 – Reports of Beneficial Ownership Information A single entity typically has more than one.
Looking Through Nominees
Nominees, intermediaries, custodians, and agents acting on behalf of a true beneficial owner are generally excluded from the beneficial owner definition. An accountant or lawyer providing standard professional services is not considered to exercise substantial control, and one designated as an agent of the company may qualify for this exception.4Financial Crimes Enforcement Network. Frequently Asked Questions The critical move: if someone holds shares or a position purely as a stand-in for the real decision-maker, look through the nominee to the person behind them.
Identifying that a nominee arrangement exists is often the hard part. Side agreements, powers of attorney, declarations of trust, and shareholder agreements are where these relationships live. If they are not in the file you were given, ask for them by name.
Obstacles You Should Expect
Complex ownership structures are the most frequent barrier. When ownership runs through multiple layers of holding companies, trusts, limited partnerships, and shell entities, the chain can stretch across half a dozen levels or more before reaching a natural person. Each layer requires separate investigation, and intermediate entities may sit in jurisdictions with minimal disclosure requirements.
Cross-border structures compound the difficulty. A foreign holding company may be domiciled where no public beneficial ownership registry exists, or where a registry exists but access is restricted to local authorities. You are left relying on the entity itself to disclose, which leads to the second problem: uncooperative parties. When individuals or intermediary entities withhold documentation, provide incomplete data, or ignore requests, identification stalls until you can escalate or work around the gap.
Nominee arrangements add another layer of opacity, and cap tables that appear clean can be misleading if a nominee sits on them holding a controlling stake for someone off the record.
Information to Capture for Each Beneficial Owner
Once you have your list, the practical output of the exercise is a set of personal details for each individual. FinCEN’s BOI reporting framework calls for four pieces of information per beneficial owner, and this is a reasonable checklist even when no FinCEN filing is involved:5Financial Crimes Enforcement Network. Beneficial Ownership Reporting – Key Questions
- Full legal name.
- Date of birth.
- Residential address, which in most cases means a home address rather than a business address.
- An identifying number and image from a non-expired government-issued ID: a U.S. passport, state-issued driver’s license, state or local ID, or a foreign passport if none of the other documents is available.
When Identification Still Matters Without a FinCEN Filing
The federal filing landscape shifted in March 2025. FinCEN’s interim final rule exempts all entities created in the United States from filing beneficial ownership information reports, and the revised definition of “reporting company” now covers only entities formed under foreign law that have registered to do business in a U.S. state or tribal jurisdiction.6Financial Crimes Enforcement Network. FinCEN Removes Beneficial Ownership Reporting Requirements for US Companies and US Persons Reporting companies also do not need to report BOI of any U.S. persons under the interim final rule.7Financial Crimes Enforcement Network. Interim Final Rule: Questions and Answers
Identification itself has not gone away. Financial institutions still need to identify beneficial owners of their customers as part of customer due diligence under the Bank Secrecy Act. Buyers and investors trace ownership chains before acquisitions so they know who they are actually dealing with. Anti-money laundering programs across regulated industries continue to require beneficial ownership verification regardless of what FinCEN requires from the entity itself. If you are doing the work, the two tests and the mapping process are the same whether or not a report ever gets filed.
Keeping Your Identification Current
Ownership and control change. Equity issuances, financing rounds, acquisitions, senior leadership turnover, and governance restructurings can each shift who qualifies as a beneficial owner. For foreign reporting companies still within FinCEN’s scope, updates to a filed BOI report are due within 30 days of any change.8Financial Crimes Enforcement Network. Beneficial Ownership Information Reporting
Even where no filing obligation applies, current records are worth keeping. Financial institutions conducting periodic customer due diligence will re-verify ownership, and being unable to produce accurate information can delay transactions, trigger enhanced scrutiny, or cost the banking relationship. Build internal triggers that prompt a fresh review whenever significant events occur: equity issuances, changes in senior leadership, board seat changes, amendments to governance documents, or reorganizations. An annual review that catches a change nine months after the fact leaves a window where the records are wrong and the exposure is real.