KYB and KYC in 2026: Complementary Pillars of Trust in a Complex Financial System

In this article, Kat Cloud, Head of Government Relations at Sumsub, speaks about the roles of KYB and KYC in complex financial systems.

KYB and KYC in 2026: Complementary Pillars of Trust in a Complex Financial System

For years, Know Your Customer procedures have been the foundation of financial onboarding for individual customers. Verifying a natural person’s identity, once a manual process built around documents, has evolved into a sophisticated system incorporating biometrics, database checks, and risk scoring.

However, when the customer is a legal entity, rather than an individual, for example, a company, partnership, or other organization, then a different but related process applies: Know Your Business.

As financial crime has grown more complex, so has the need to understand not just who an individual is, but also which businesses are being onboarded and who ultimately owns or controls them.

KYB has therefore evolved into a framework used specifically for business customers, extending due diligence from individuals to the legal entities they operate or control.

Beyond the individual: Why in 2026 KYB matters more than ever

KYC answers a critical question: Is this person who they claim to be?

KYB answers a different one: What is this entity, and who ultimately controls it?

In today’s financial environment, risk often does not sit at the individual level. It is embedded in layered corporate ownership structures, cross-border entities, and nominee arrangements and intermediaries.

A fully verified individual may still represent a company with hidden risks. That is why KYB focuses on corporate registration, legal existence, ownership structure, links to sanctions, adverse media, or high-risk jurisdictions, as well as Ultimate Beneficial Owners (UBOs).

Rather than shifting attention away from individuals, KYB extends due diligence to the structures in which those individuals operate.

Two sides of the same verification problem

KYC and KYB are tightly interconnected and address different aspects of the same issue. KYC is necessary to identify the individuals behind a business, while KYB is needed to understand the business those individuals own or control. When onboarding a company, it is not enough to verify the entity in isolation. The people directing it and benefiting from it must also be identified and verified. 

Without KYC, ownership can’t be reliably established. Without KYB, that ownership lacks context. Effective compliance and fraud prevention depend on both working together.

The difficulty is that KYB has historically been harder to execute. Verifying an individual, while not trivial, is supported by relatively standardized documents and processes. Businesses, by contrast, exist within fragmented systems. Corporate registries vary widely across jurisdictions, disclosure requirements are inconsistent, and transparency is uneven. Ownership structures can span multiple countries and layers (including shell companies, nominee directors, etc.), making it difficult to determine who ultimately controls an entity. As a result, KYB has often been slower, more manual, and more resource-intensive.

KYB in the age of automation

Technology has helped ease the KYB burden through automation, reduced manual work, and greater access to data, but only to a point. Greater access to data and better integration across sources have made it easier to retrieve company information, connect records from different jurisdictions, and map ownership structures with more efficiency. Processes that once took days or weeks can now be completed much faster. However, this should not be mistaken for certainty. Corporate data remains uneven in quality, sometimes outdated, and frequently reliant on self-reporting. Automation can support analysis and reduce friction, but it does not eliminate the need for judgment.

At the same time, the industry has been moving away from treating onboarding as a one-time event. Both KYC and KYB are increasingly part of an ongoing process rather than a static check. Institutions are expected to monitor changes in ownership, emerging sanctions exposure, and other risk signals over time, all automatically. This reflects the 2026 reality: risk evolves, sometimes quickly, and controls must evolve with it.

Trust now comes in layers

Regulatory expectations are also expanding in this direction. There is growing emphasis on understanding beneficial ownership, maintaining up-to-date customer profiles, and detecting risk as it develops rather than after the fact. In parallel, “failure to prevent” frameworks are emerging in multiple jurisdictions, holding institutions accountable not just for what they know, but for what they should reasonably have detected. This increases the pressure to build systems that are both thorough and continuous, while still allowing legitimate businesses access to financial services.

All of these point to a more grounded understanding of trust in financial systems. Trust is not built on isolated checks—whether of individuals or corporations. In 2026, it depends on a layered approach in which KYC establishes who the relevant individuals are, KYB explains the entities they are connected to, and ongoing monitoring provides visibility into how risk changes over time. 

As fraud becomes more sophisticated and organizational structures more opaque, no single control is enough. Each element addresses a different dimension, and none is sufficient on its own.