If you book travel using a credit card, you may incur merchant fees, so what are they exactly?
Merchant fees are charges associated with processing credit cards. This is usually a small percentage over the original price of the product.
Merchant fees are enforced by certain businesses, since the vendor must pay an annual fee to maintain a merchant account. Merchants are also charged an interchange fee, which allows the bank to authorise a transaction between the merchant’s and the payee’s credit card accounts. Some businesses are thus forced to charge merchant fees, however, this does not apply to all.