- Acquirer
- The bank or licensed institution that processes card payments for a merchant and pays the money into the merchant's account.
- Issuer
- The bank that issued the customer's card. It approves or declines each transaction.
- MDR (Merchant Discount Rate)
- The percentage fee deducted from each card or QR transaction. It covers interchange, scheme and acquirer fees.
- Interchange fee
- The part of the MDR paid to the issuing bank. In Malaysia it is regulated by Bank Negara Malaysia.
- EDC (Electronic Data Capture)
- The traditional banking term for a card terminal that captures and transmits payment data electronically.
- Smart POS
- An Android payment terminal that combines card acceptance, QR, a printer and business apps in one device.
- MyDebit
- Malaysia's national debit card scheme, operated by PayNet, and usually the lowest-cost card type to accept.
- DuitNow QR
- Malaysia's national QR standard. One code accepts payments from all participating bank and e-wallet apps.
- MID / TID
- Merchant ID and Terminal ID, the unique identifiers given to your business and to each terminal after approval.
- Settlement
- The end-of-day process that sends your transaction batch to the acquirer so the money can be paid into your account.
- EPP (Easy Payment Plan)
- An instalment option that lets credit cardholders spread a purchase over monthly payments, typically 6–24 months.
- MOTO
- Mail Order / Telephone Order: a card-not-present transaction keyed in by an approved merchant.
- Pre-authorisation
- A temporary hold on a card's available limit, used by hotels and car rentals, that is completed later.
- Chargeback
- The reversal of a card transaction after the cardholder disputes it with their issuing bank.
- NFC / Contactless
- Near-Field Communication, which lets customers pay by tapping a card, phone or smartwatch.
- PCI DSS
- The Payment Card Industry Data Security Standard, the global security standard for anyone handling card data.