When banks exchange foreign currency, there may be a certain handling fee. Different banks and currencies may have different handling fees. Generally speaking, banks will set an exchange rate, which may be slightly different from the market exchange rate. This price difference is actually the bank's handling fee.

In addition, some banks may charge a fixed fee for foreign currency exchange services, or charge a minimum fee for foreign currency exchange below a certain amount. The specific handling fee policy and charging standard need to be determined according to the regulations and requirements of different banks.

When you exchange foreign currency, it is recommended that you know the exchange policy and charging standard of the bank in advance, so that you can prepare for the exchange. In addition, you can also compare the exchange rates and handling fees of different banks and choose the most suitable bank for exchange.