Author
Payment systems expert and technology executive
Arif Ünal is a technology executive with more than 20 years of experience in banking, fintech and payment systems. He writes about card payments (issuing and acquiring), POS, ATM, e-money, FAST and Turkish payments regulation (BRSA and CBRT). He has held senior roles at Finagotech and managed payment systems and digital banking teams at Emlak Katılım, Vakıf Katılım and Türkiye Finans. He holds a B.Sc. in Industrial Engineering from Istanbul University and an M.Sc. in Management Information Systems from Marmara University.
976 articles
Laws & Regulations
It is the regulation that sets out the procedures and principles for banks procuring support services, that is, outsourcing. Some services such as catering, legal counsel and advertising are outside its scope.
Payment System Institutions
BKM (Interbank Card Center) works through several committees: Security, Operations and Technology, Market Development, Business Development, Chargeback Rules and Arbitration, ATM Sharing, plus arbitration committees. This post outlines each one's duties.
Chargeback
The Dispute Management System (HİYS) is the system used among BKM members to share chargeback transactions and the supporting documents that must accompany them, linked to Domestic Clearing and Settlement System data.
Payment Systems
BKM Payment Gateway is the general name for platforms that let government institutions accept card payments through BKM as intermediary. For the first time, SGK and e-Government title deed payments can be made with all banking cards.
Payment System Institutions
BKM (Interbank Card Center) was founded in 1990 to clear and reconcile credit and debit card payments. This post covers its public collection solutions: contactless transport in Konya, SGK premium payments and e-Government gateway fees.
FAST
Current information: This post describes the limit in effect at the time of publication. The FAST transaction limit, introduced in January, was raised periodically and reached 1,000 TL as of January 29. See the newer post for the current FAST limit.
Merchant & POS
A static QR code is a code whose content is fixed and can be used for multiple payment transactions. So what is the difference between a static and a dynamic QR code?
Merchant & POS
Dynamic verification means that, in a payment initiated with a dynamic QR code, transaction-specific details such as the recipient's name, account number and amount are verified online by the receiving participant at the time of the transaction.
Payment Systems
ISO/TC 68 is a technical committee within the International Organization for Standardization in Geneva, responsible for developing and maintaining international standards for banking, securities and other financial services.
Payment Systems
ISO 18245 is an ISO standard on the management of Merchant Category Codes (MCC) in retail financial services. ISO 18245: 2003 defines the code values used to classify merchants by the type of business, trade or service they provide.
Payment Systems
ISO 3166 is a standard published by the International Organization for Standardization (ISO) for coding the names of countries, autonomous regions, provinces and states. It consists of three parts.
Merchant & POS
The Merchant Registry System is the system at BKM that holds information on merchants accepting electronic payments, set up to simplify TR QR Code payment processes and prevent fraud and misuse in payments.