Payment facilitator (PayFac)

A payment facilitator (PayFac, PF) is a company that onboards smaller merchants to card acceptance under its own relationship with an acquiring bank, signing those merchants and settling their funds so each one does not need a direct merchant account. Visa describes a PF as a third-party agent that "signs a merchant acceptance contract with a sponsored merchant on behalf of an acquirer" and "receives & distributes settlement of transaction proceeds from an acquirer, on behalf of its sponsored merchant(s)."

The merchants a PayFac signs are called sub-merchants, or sponsored merchants in Visa's terminology.

Why it matters in KYB and fraud review

The PayFac model moves merchant underwriting from the acquirer to the PayFac, but it does not move the liability away. Visa states that "acquirers are responsible for the acts of both PFs and sponsored merchants," and that "all Visa merchant requirements apply equally to a sponsored merchant." Its risk guide adds that Visa holds acquirers, payment facilitators and marketplaces accountable for the illicit actions of the sellers they onboard.

Two reviews follow from that:

1. The acquirer, or a sponsor bank, reviewing the PayFac itself. Its ownership, financial strength, underwriting policy, monitoring and track record.
2. The PayFac reviewing each sub-merchant. Usually at high volume, with self-serve signup, where speed pressure is highest and fraud like transaction laundering enters.

What an analyst checks

Reviewing a PayFac:

• Registration with the card networks as a third-party agent, and the acquirer relationship behind it.
• Its written underwriting standards, including prohibited and high-risk categories.
• Monitoring: website rescreening, transaction monitoring, chargeback handling and how it offboards bad sub-merchants.
• Ownership, control and screening, as for any business customer.

Reviewing a sub-merchant:

• Entity and owner verification, with evidence proportionate to expected volume.
• Website and business-model review, including MCC fit.
• Prohibited or high-risk categories under the PayFac's and networks' rules.

Common pitfalls

• Treating the PayFac's instant-approval promise as a reason to skip website review.
• Underwriting at signup and never again, while sub-merchant volume grows past the size originally assessed.
• Letting a sub-merchant pick its own category code.
• Weak records. When the acquirer or network asks why a merchant was approved, the PayFac needs the evidence.

Related terms

Sub-merchant, sponsor bank, transaction laundering, onboarding SLA.

Sweat AI is an AI-native BPO for banks and fintechs, working onboarding and fraud queues 24/7. For PayFacs, our analysts review sub-merchant applications and alerts overnight and at weekends, with the evidence behind each finding, so your team decides on a worked queue in the morning. See payments onboarding.