Payment Facilitator

The PayFac model emerged to solve a distribution problem: acquiring banks were too slow and risk-averse to onboard small merchants at the pace that software platforms required. Payment Facilitators sit between acquirers and sub-merchants, taking on the underwriting responsibility the bank was unwilling to carry.

How the PayFac Model Works

A PayFac registers directly with Visa and Mastercard as a master merchant. When a sub-merchant wants to accept payments, the PayFac onboards them — typically in minutes — using a streamlined KYB process. The sub-merchant’s transactions flow through the PayFac’s master merchant account, and the PayFac handles settlement to the sub-merchant.

The acquiring bank’s relationship is with the PayFac, not the sub-merchant. The PayFac guarantees the acquiring bank that its sub-merchant portfolio meets compliance standards and that losses will be covered.

PayFac Risk and Responsibilities

PayFacs bear significant financial and regulatory exposure:

Underwriting risk: If a sub-merchant commits fraud or accumulates chargebacks, the PayFac is liable to the acquirer. Rolling reserves and sub-merchant vetting are the primary risk controls.

KYB/KYC obligations: PayFacs must collect and verify business identity, beneficial ownership, and business activity for every sub-merchant. Regulatory requirements in most markets (US BSA, EU PSD2, FCA) specify minimum due diligence thresholds.

Chargeback management: PayFacs aggregate chargeback ratios across their portfolio. If the portfolio ratio exceeds Visa/Mastercard thresholds (1% for Visa, 1.5% for Mastercard), the PayFac faces fines and potential registration termination.

Becoming a PayFac

Platforms processing above ~$500K/month in sub-merchant volume typically begin evaluating direct PayFac registration. The economics shift at scale: margins captured on sub-merchant volume compensate for the infrastructure and compliance costs. PayFac-as-a-Service providers (Stripe Connect, Adyen for Platforms, Finix) offer a middle path — platform captures some economics without full Visa/Mastercard registration.