Yes, it is mandatory. This requirement was introduced to prevent fraud transactions.
To fulfill their obligations regarding the identification of foreign customers, banks must make one of the following arrangements on transaction receipts.
- Turkish & English descriptions for foreign card transactions
- Turkish receipt plus a foreign card warning for foreign card transactions
- English receipt for foreign card transactions
So how does the POS device detect a foreign card?
The POS device maintains a domestic BIN list. When a transaction is made with a card through the POS, the POS device checks whether the card's BIN number is within the domestic BIN list; if it is not on the domestic BIN list, it interprets this card as a foreign card.
You can read detailed information on this topic in my article below:
https://arifunal.com/yazi/pos-cihazi-yurt-disi-kartlari-nasil-tespit-eder/
The purpose of foreign card detection
Since refund, dispute and fraud processes work differently for transactions made with a foreign card, a clear warning is required on the receipt. This way, the customer can see that the transaction was made with a foreign card and view the necessary conditions.
The POS device must keep the domestic BIN list up to date. If the list becomes outdated, newly issued BINs may be classified incorrectly.
Bank POS management teams should monitor that the BIN list is regularly uploaded to the devices.
