KYC, KYB and AML in fintech: a founder’s guide

KYC means knowing who your customer is. KYB applies that work to a business, including the people who own or control it. AML is the wider work of preventing money laundering, including customer due diligence and ongoing monitoring. These terms belong together, but completing an identity check does not mean every review is finished.

The question each one answers

Customer information needs to stay relevant as the relationship changes. AML also involves reviewing activity and escalating concerns through the applicable process. The controls, responsible entity and requirements depend on the service, jurisdiction and risk; a software integration does not establish compliance on its own.

KYC, KYB and AML: the practical difference

• KYC: establish who the individual is and understand the relationship.
• KYB: understand the company, its ownership and the people authorised to act for it.
• AML: the wider controls and continuing review of the relationship and its activity.

Does passing KYC mean an account is approved?

No. Verification and the account provider's decision can be separate steps. A completed identity check should not be presented as a promise that a particular account or service is available. I wrote about this distinction in Verification is not account approval.

At Bennu, the product question I care about is what the person can understand at each step: what is complete, what is still being reviewed and whether anything is needed from them. Our explanation of the teams behind Bennu describes each integration's role. It does not imply a provider's endorsement or guaranteed approval.

The most common early-stage mistakes

• Treating compliance as a separate module, rather than as part of the product flow—which leads the product team to see it as an obstacle instead of part of the design.
• Outsourcing identity verification and assuming that solves AML, without establishing the other controls and responsibilities that apply.
• Not documenting decisions: if a bank or provider asks why an action was taken, the team needs a clear record rather than a reconstruction from memory.
• Believing this only matters above a certain volume, when in fact regulators—and the banks serving these companies—assess the soundness of the process, not just its scale.

Why it is a trust advantage, not just a formality

There is a way of looking at KYC/AML that sees it only as a regulatory cost. There is another, more useful way, that sees it as a signal of trust to three different audiences at once: the user (who entrusts the platform with their data and their money), the bank or regulated provider serving the company (which needs to see a serious process before opening or maintaining a relationship), and the regulator (which needs to see that the company understands the framework it operates in).

A clear process can make those conversations easier. It still takes time and resources, and it cannot guarantee a banking relationship, a funding round or permission to operate in another jurisdiction.

A practical framework for founders

If you are just starting out: first define who is responsible for each control (in-house or a regulated external provider), document the decision criteria before you need them, and review the process every time the company enters a new jurisdiction or changes providers. The worst outcome is not having to answer hard questions from a bank; it is having no answer when they arrive.

Note: informational and educational content. It does not constitute legal, regulatory, tax or financial advice, nor an offer of services. Verify every obligation with qualified advisers and the competent authority.

Sources

• FATF-GAFI Recommendations — the international KYC/AML framework.
• European Banking Authority (EBA) — due diligence guidelines.
• SEPBLAC — Spain's anti-money laundering supervisor.