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BKM (Interbank Card Center) membership acceptance criteria overview

Laws & Regulations

What Are the BKM Membership Acceptance Criteria?

BKM (Interbank Card Center) membership is available in 3 statuses: bank, institution or HSK. This post explains the eligibility criteria for each status, the 12-month certification requirement and the BKM fee principles.

ATM machine used for banking transactions in Turkey

ATM

ATM Companies Operating in Turkey

ATMs are devices that let customers carry out many banking transactions without visiting a branch. Keeping these devices technologically up to date and maintaining a high level of security are among the most important issues. Below are the companies that provide ATM software and support in Turkey.

Diagram illustrating the Easy Addressing System (KOLAS) within Turkey's FAST payment network

FAST

What is the Easy Addressing System (KOLAS)?

The Easy Addressing System (KOLAS) is one of the layered services of FAST, the Central Bank's instant funds transfer system, developed and operated by BKM. It lets users send money via phone number or email instead of an IBAN.

BKM Online member information sharing portal

Credit Card

What Is BKM Online (BOL)?

BKM Online is the web-based electronic system that enables communication and information sharing between BKM and its members, including documents, reports, services and work calendars, according to user permissions.

Diagram illustrating the NextGenPSD2 framework for open banking APIs

Open Banking

What Is NextGenPSD2?

NextGenPSD2 is the set of API standards launched by the Berlin Group in 2017, now involving more than 1,700 banks from 20 countries. This post explains what the framework offers to banks, fintechs and third-party providers under PSD2.

Diagram showing how an open authorization moves to a card statement after batch close and clearing

Credit Card

What Is an Open Authorization?

In credit card transactions made through a POS, receiving approval alone is not enough for the transaction to post to the card's statement period; settlement must also take place. The settlement period, known as the open-authorization waiting time, varies by transaction type.

Overview of Türkiye's Law No. 6493

Laws & Regulations

What Is Law No. 6493? What Does It Contain?

Law No. 6493, published in Official Gazette No. 28690 on 27 June 2013, regulates the procedures and principles for payment and securities settlement systems, payment services, payment institutions and e-money institutions.

Illustration of ways merchants can reduce chargebacks on card transactions

Chargeback

How to Reduce Chargebacks (For Merchants)

Chargeback is inherent to card transactions, so it may be impossible to prevent entirely, but taking precautions keeps the risk to a minimum. Here are the key points merchants should pay attention to in order to reduce chargebacks.

Close-up of a credit card, illustrating a transaction pending in open authorization

Merchant & POS

Can an Open-Authorization Transaction Be Cancelled?

Open authorization covers the period between authorization, POS batch close, the bank's end-of-day process, and clearing. Learn which steps allow cancellation versus refund, and what a cardholder should do.

Bitcoin ATM kiosk used for buying and selling Bitcoin

ATM

What Is a Bitcoin ATM? How Does It Work?

A Bitcoin ATM (BTM) is a specialized kiosk designed for Bitcoin transactions, letting users buy and sell Bitcoin. General features: it enables Bitcoin purchases and sales, and while it visually resembles traditional ATMs...