Know Your Customer (KYC)

Know Your Customer — universally abbreviated KYC — is not optional courtesy; it is a regulatory requirement imposed on banks, broker-dealers, trust companies, and other financial institutions in most jurisdictions. The process typically involves collecting government-issued identification, verifying beneficial ownership of any entities involved, and understanding the source of funds being deposited or invested. Regulators use KYC as a front line of defense against money laundering and financial crime.

For wealthy families, KYC can feel intrusive or repetitive, particularly when opening accounts across multiple institutions or jurisdictions. A hypothetical family office managing assets through several holding companies and trusts may be asked by each new bank to document the entire ownership chain, provide trust agreements, and explain the origin of a liquidity event such as a business sale. The more complex the structure, the more documentation is typically required.

A common misconception is that KYC is a one-time onboarding formality. Most institutions run ongoing KYC reviews — sometimes called periodic refresh — and a major transaction or change in structure can trigger an out-of-cycle review. Families who keep organized records of entity documents, appraisals, and transaction history tend to navigate these reviews more smoothly. Understanding KYC also matters when evaluating new relationships, as described in managing substantial wealth.