What Is KYB and Why Does It Matter in Cross-Border Trade?
KYB (Know Your Business) is the regulator-mandated process of verifying that a business counterparty is legitimate. In cross-border trade it determines whether a payment can legally clear.
Table of contents
KYB — Know Your Business — is the business-counterparty analogue of KYC. Where KYC verifies individuals, KYB verifies legal entities and the natural persons who ultimately own and control them.
The regulatory backbone
KYB is required, in some form, by every major AML regime:
- FATF Recommendations 24 & 25 require all jurisdictions to maintain registries of beneficial ownership and to make this information accessible to financial institutions.
- EU Anti-Money Laundering Regulation (AMLR, 2024) harmonises KYB across the bloc and introduces a single Authority (AMLA) from mid-2025.
- US FinCEN Corporate Transparency Act (CTA, 2024) requires US entities to report beneficial owners to FinCEN.
- UK Economic Crime and Corporate Transparency Act (ECCTA, 2023) strengthens Companies House verification.
A bank or EMI that cannot complete KYB on a corporate counterparty cannot legally process payments for it.
What KYB actually covers
Why it matters in cross-border trade
When you pay an overseas supplier:
- Your bank performs KYB on you (the originator).
- The supplier's bank performs KYB on the supplier (the beneficiary).
- Correspondent banks in the payment chain perform sanctions screening on every leg.
If the supplier's KYB is incomplete or stale, the payment can be held, returned, or — in sanctions cases — frozen. Many delayed supplier payments are not "bank slowness." They are KYB failures on the beneficiary side.
When to refresh KYB
Conflicts of interest: none disclosed. Last reviewed May 29, 2026.
Marcus is KeyBS Trust's senior compliance lead. Before joining, he ran sanctions screening operations at two EU EMIs and advised on AML controls for cross-border payment corridors into China, Hong Kong, and Vietnam.
View profileElena owns editorial governance and operational risk review for KeyBS Trust Intelligence. She approves every published article and chairs the methodology review board.
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