First of all, it needs to be clear that the amount of foreign currency refers to the amount expressed in foreign currency, while the value-added tax refers to the tax added to the price of goods or services during the production and circulation of goods or services. The calculation of foreign currency value-added tax needs to consider the influence of exchange rate.

Secondly, when calculating the value-added tax in foreign currency, you need to refer to the foreign exchange quotation or the middle price of foreign exchange. Foreign exchange quotation refers to the foreign exchange transaction price announced by the bank, including spot foreign exchange transaction price and cash transaction price, which are quite different. The middle price of foreign exchange refers to the middle price between RMB and foreign currency, which is issued by the central bank and is relatively stable. Therefore, when calculating the foreign currency amount of VAT, it is suggested to refer to the middle price of foreign exchange.

Finally, it should be noted that banks usually charge a certain foreign exchange fee. Therefore, when calculating VAT in foreign currency, exchange cost should be considered. Generally speaking, the actual amount of foreign exchange will be less than the original amount, so when calculating the value-added tax amount of foreign currency, the exchange fee needs to be considered to avoid mistakes.