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Merchant & POS
Address Verification Service (AVS) is a fraud prevention system that helps limit fraud and chargebacks when used effectively. It verifies that the address a customer enters matches the cardholder's address on file with the issuer.
EMV
The AID tells the terminal which applications are present on a chip during a POS or ATM transaction. What does the AID do? It lets the terminal determine whether it supports an application on the chip. In Tag 9F06, it is 5-16 digits long.
Closed-Loop Payments
Is Starbucks really selling coffee, or building an ecosystem? Prepaid balances, a loyalty program and customer data turn a coffee chain's payments into a closed-loop economy, a very different model from Istanbulkart.
Credit Card
Amex is short for American Express, a payment scheme like Mastercard, Visa, or TROY. Learn its history, what sets Amex cards apart, and whether every website accepts them.
Contactless
A contactless transaction is a fast and secure payment made between a credit card and a POS terminal without direct contact, without reading the card's chip or magnetic stripe. Both the card and POS terminal must support contactless transactions.
Credit Card
A structure developed by Visa for purchase refund transactions. The purchase return authorization message lets cardholders view their refund transactions in real time, improving the customer refund experience.
Merchant & POS
UnionPay International (UPI) is a China UnionPay subsidiary founded in November 2012. Together with more than 1,000 institutions worldwide, UPI provides international card acceptance in 160 countries and card issuance in more than 40 countries and regions.
Merchant & POS
Doctor POS devices are POS terminals designed for physicians, dentists, and veterinarians who are income taxpayers, meeting the requirements set out in the General Communique of the Tax Procedure Law (VUK).
Payment Systems
The BRSA has published a draft regulation amending the Regulation on Debit Cards and Credit Cards. It introduces the card scheme definition, a customer right to choose the card scheme, and an obligation for acquirers to define licensed schemes on merchant POS devices.
Payment Systems
The Smart Payment Association (SPA) is the trade association of the smart payments industry. It provides leadership and expert guidance to help members and customers realize smart, secure and personalized payment systems and services, now and in the future.
Credit Card
It may sound impossible at first, but it is technically possible: a bank can issue chip debit cards under the same BIN as its magnetic stripe cards, with the card scheme's approval.
Online & Authorization
In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.