A bank card is a plastic card issued by a bank. The two main types of bank cards are credit cards and debit cards. A credit card is used to make payments, and when you pay for something, the money will be deducted from your line of credit. A debit card is attached directly to your bank account, and when you make a payment using a debit card, the money will be deducted straight from your own current account. Bank cards can be used in physical shops, as well as online shops.