KYC and AML for a marketplace: how to avoid getting blocked

Launching a marketplace means handling other people’s money. And as soon as you deal with third-party financial flows, regulation steps in: KYC (identity verification) and AML (anti-money laundering). Ignoring them risks a block—often at the worst possible time.

Why it’s mandatory

A marketplace that collects payments on behalf of sellers acts as a payment intermediary. The law requires you to know who the sellers are (KYC), to monitor suspicious transactions (AML), and to keep audit logs. A payment provider may suspend your flows if this isn’t in place.

The practical building blocks

• Identity verification : Stripe Identity or Veriff collect and verify sellers’ ID documents.
• AML screening : ComplyAdvantage (or equivalent) checks the origin of funds and flags high-risk transactions.
• Logs and traceability : everything is documented to pass an audit.

Part of this compliance is handled by the payment solution—which is one of the benefits of Stripe Connect, which we detail in our article on Stripe Connect for a marketplace.

The trap: addressing it too late

Most marketplaces get blocked because KYC/AML was postponed "for later". Yet it must be designed from the start: seller onboarding, verification tiers, trigger controls. Retrofitting it is painful.

In short

KYC and AML are not optional for a marketplace: they are the foundations that prevent blocking. We integrate them from the design phase in our custom marketplace projects, with a tested payment integration—see Agence Stripe.

Launching a marketplace, or stuck on compliance? Let’s talk.