Bank of China doesn't charge any fees and deposits when installing pos machines, but merchants pay a credit card handling fee, which is generally about 1%-2% of the credit card amount. The specific situation needs to be determined according to the specific industry of the merchant. Some industries (such as wholesale industry and ticket sales) can apply for pos machines capped in 20 yuan and 50 yuan. The following documents are required to apply for a bank card swipe machine. X0d 1, copy of tax registration certificate (copy) x0d2, copy of business license (copy) x0d3, copy of organization code certificate (copy) x0d4, bank business license (copy) x0d5, copy of enterprise identity card, with official seal and name stamp,