A registered ISO (Independent Sales Organization) is an entity that has been formally registered with Visa and/or Mastercard — directly appearing on their approved ISO lists. Registered ISO status requires significant capital requirements, compliance infrastructure, and sponsorship by an acquiring bank.
Registered ISO status enables a company to: - Directly underwrite merchants (evaluate and approve merchant applications) - Set pricing and terms for merchants within approved parameters - Enter into direct merchant agreements - Access card network resources and support - Take on card network liability for their merchant portfolio
The distinction between a registered ISO and an unregistered agent/sub-ISO is significant: registered ISOs have direct accountability to card networks and must meet ongoing compliance requirements. Sub-ISOs work under registered ISOs without direct network registration.
Requirements for registered ISO status include: - Formal application to Visa and Mastercard - Acquiring bank sponsorship agreement - Financial reserves meeting card network minimums - Ongoing compliance with network rules and regulations - Annual registration fees to the card networks
Working with a registered ISO provides added security — the ISO is known to and regulated by card networks. If you ever have a dispute with your processor, you have avenues through the card networks that you don't have with unregistered agents.
Ask any ISO you work with whether they are directly registered with Visa and Mastercard. If they're a sub-agent of a larger ISO, understand who the registered entity is and what that means for your account stability.
A merchant is comparing two ISOs: - ISO A: Registered ISO with Visa/Mastercard, direct acquiring bank relationship - Higher compliance requirements, more stable, card network regulated - Can sign merchant agreements in their own name - ISO B: Sub-agent operating under a parent ISO - May offer competitive pricing, but parent ISO controls the account - Less direct accountability, account control sits elsewhere
Contact Visa or Mastercard directly, or ask the company for their registration number. Visa maintains a public list of registered ISOs and their sponsoring banks.
Liberty Bancard maintains registered ISO status with both Visa and Mastercard. Our registration is kept current and our merchant agreements reflect our direct ISO relationship. Ask us for our registration credentials at any time.
Continue learning: Browse all 60 payment processing terms in our Payment Processing Glossary, or upload your statement for a free analysis of your current processing costs.