Issuing Bank

A financial institution licensed by card networks (Visa, Mastercard) to process payment card transactions on behalf of merchants, also known as a merchant acquirer. The acquiring bank maintains the merchant's account, underwrites the merchant's credit risk, settles funds from card transactions, and ensures compliance with card network rules and PCI DSS security standards.

The end-to-end handling of electronic payment transactions from initiation through authorisation, clearing, and settlement. Payment processing involves multiple parties — merchants, payment gateways, acquiring banks, card networks, issuing banks, and payment processors — coordinating in real time to validate, authorise, and settle funds.

A fee paid by the acquiring bank to the issuing bank each time a payment card transaction is processed, representing the largest component of the merchant discount rate. Interchange fees are set by card networks (Visa, Mastercard) and vary by card type, merchant category, transaction method (card-present vs card-not-present), and jurisdiction.

The total fee charged to a merchant for processing a payment card transaction, expressed as a percentage of the transaction value plus a fixed per-transaction fee. The MDR comprises three components: the interchange fee (paid to the issuing bank), the card network assessment fee (paid to Visa/Mastercard), and the acquirer's markup.

A technology service that authorises and processes electronic payment transactions between merchants and acquiring banks or payment processors. Payment gateways encrypt sensitive payment data, route transactions to the appropriate card networks, and return authorisation responses in real time.

The EU directive (2015/2366) that regulates payment services and payment service providers, mandating strong customer authentication, open banking through account access APIs (XS2A), and enhanced consumer protection. PSD2 has fundamentally reshaped the European payments landscape by requiring banks to provide licensed third parties with access to customer account data and payment initiation capabilities.

A business model that creates value by facilitating exchanges between two or more interdependent user groups — typically producers and consumers — through a digital platform. Platform businesses generate powerful network effects and intangible assets including user data, algorithmic matching capabilities, and brand trust.

A form of receivables financing in which a business sells its outstanding invoices to a third-party factor at a discount in exchange for immediate cash. The factor assumes responsibility for collecting payment from the underlying debtors and bears the credit risk in non-recourse arrangements.