A master merchant account is the foundational bank account held by a Payment Facilitator (PayFac). Instead of requiring every small business (sub-merchant) to go through a lengthy underwriting process with an acquiring bank to get their own dedicated account, the PayFac routes all of the sub-merchants' transactions through this single, centralized master account.
The Speed Advantage
The master merchant model is the engine behind instant onboarding. Companies like Stripe or Shopify hold the master account, allowing them to instantly approve a new e-commerce store and let them accept payments on day one.
Automating Master Merchant Risk via Onlayer
While the onboarding is instant for the sub-merchant, the PayFac holding the master account takes on massive aggregated risk. Onlayer enables PayFacs to automate and complete sub-merchant onboarding within minutes, replacing slow manual reviews with instant, data-driven decisions. This allows the PayFac to aggressively scale the volume under their master merchant account without adding operational headcount.
