Know Your Business (KYB) is the due diligence process financial institutions and lenders use to verify the identity, legal existence, and ownership structure of a business customer before establishing a relationship or extending credit. KYB is the business-customer counterpart to KYC (Know Your Customer), and is a core requirement under anti-money laundering (AML) regulations for any institution that serves commercial clients.
Introduction to KYB
When a lender extends credit to a business rather than an individual, it faces a different set of risks: the “customer” is a legal entity that can have layers of ownership, multiple authorized signers, and — in the worst cases — be used to disguise the identity of the people actually behind it. KYB exists to strip away that ambiguity before a lender does business with a company, confirming that the business is legally registered, operating as represented, and not a shell used to facilitate money laundering, fraud, or sanctions evasion.
How KYB Works
A typical KYB process verifies several layers of information. First, the lender confirms the business is legally registered and in good standing, checking articles of incorporation, business licenses, and state or federal registration records. Second, it verifies the business’s tax identification number (EIN) and confirms it matches the registered entity. Third, and often most important, it identifies the business’s ultimate beneficial owners — the individuals who actually own or control the company above a certain ownership threshold — and runs those individuals through the same identity verification and sanctions or watchlist screening used in consumer KYC. Finally, the lender screens the business itself against sanctions lists and adverse media to check for red flags. Under U.S. anti-money laundering regulations, financial institutions are generally required to collect and verify beneficial ownership information for legal entity customers as part of their AML program.
Example
A small business applies for a working capital loan through a lender’s online portal. Before approving the loan, the lender verifies the business’s state registration, confirms its EIN, identifies the two individuals who each own 30% of the company, and runs both of them through identity verification and sanctions screening — all before funds are disbursed.
Compliance Requirements
KYB isn’t optional for regulated lenders — it’s a component of a broader Bank Secrecy Act (BSA) and AML compliance program, alongside transaction monitoring and suspicious activity reporting. Lenders are expected to document their KYB process, keep records of the verification performed, and re-verify business information periodically or when circumstances change, such as a change in ownership. For a loan management platform, KYB is often integrated at origination, pulling business registration data, EIN verification, and beneficial ownership screening through third-party data providers as part of the underwriting workflow, rather than as a manual, offline check.
Bottom Line
KYB gives lenders confidence that the business they’re extending credit to is real, properly registered, and not being used to obscure who actually controls it — a foundational safeguard for any lender that serves commercial borrowers.
