A water bill is also called a water bill. If an enterprise has foreign exchange income, it will write off the money in the future. If there is foreign exchange income, it must be declared within the time limit required by the bank. Otherwise, the country will think it is smuggled money. Before write-off, you must go to the bank where the foreign currency deposit account belongs, and you can only write it off with the foreign exchange receipt notice, customs declaration form and customs declaration form.

Invoice usually refers to the project credentials issued and collected by all enterprises and individuals in purchasing goods, providing or receiving services and engaging in other business activities. It is the initial basis of financial accounting and an important certificate for law enforcement inspection by audit institutions and tax authorities. The receipt of payment is regarded as the receipt of payment, and the invoice can only prove that the project has happened, but can't prove whether the money has been paid.