For the exported goods, the customs declaration price is 6,543,800+,and the buyer requested to reduce the price to 80,000 due to quality problems. How should the export invoice be issued, will it affect the tax refund? Theoretically, there is, because you have only recovered part of the payment, and you can only refund the tax according to the actual amount. However, there is no one-to-one correspondence between enterprises, especially those with more business, who are wallowing in the verification of foreign exchange receipts; So you don't really have to worry about him. If it is a small enterprise, the invoice is the same, and negative export is needed to offset the difference.