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Screenshot of an Address Verification Service (AVS) response code table

Merchant & POS

What is Address Verification Service (AVS)?

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.

Table of AVS response codes by card scheme, showing address and postal code match results

Payment Systems

What Are the AVS Codes by Card Scheme?

The Address Verification Service (AVS) is a fraud prevention system that, when used effectively, can help limit fraud and chargebacks. This post lists the AVS response codes used by AMEX, Mastercard and Visa, with a description of each.

Illustration of a customer completing a payment through an online payment link

Merchant & POS

What Are the Advantages of Paying with an Online Payment Link?

Advances in payment systems make shopping safer and easier for customers. For e-commerce sites and brands, offering reliable, practical and fast payment options is a serious advantage. An online payment link is one innovative way to accept payments without a POS device.

Diagram illustrating the types of chargeback disputes in card payments

Chargeback

What are the chargeback dispute types?

A chargeback is a dispute raised against a card transaction when the cardholder did not make it or does not recall it. The dispute types vary depending on the situation; let's look at them.

Diagram illustrating how taxes are applied to payment institution money transfer commissions

Laws & Regulations

How Is Taxation Applied to Payment Institution Money Transfer Services?

When payment institutions and e-money institutions were first established, the commissions they collected from customers were subject to VAT. Because they carry out activities similar to banking, BSMV was also debated. The General Communiqué on Expense Taxes (Series No: 91) resolved this.

Illustration of an ATM with a voice menu for visually impaired customers

ATM

What Must Banks Do for Visually Impaired Customers?

Banks must provide the infrastructure for ATM access by visually impaired customers. Among ATMs side by side or less than 50 meters apart, only one needs to comply; all other ATMs must serve visually impaired customers. Details of Article 7 are below.

Payment transaction success rate metric

Merchant & POS

What Is the Transaction Success Rate?

The Transaction Success Rate (TSR) is a key performance metric measuring the percentage of attempted payment transactions that complete successfully, and a critical indicator of overall payment health.