At present, mainstream B2C e-commerce, including JD.COM Mall, Suning.cn, Gome Online, Amazon and Dangdang, almost all default to issue their own invoices. That is to say, even if consumers buy goods with a value of only 1 cent, as long as they are self-operated goods, the above-mentioned B2C mainstream e-commerce companies will issue invoices by default and mail them to consumers together with self-operated goods. However, it should be noted that a few of the above-mentioned B2C mainstream e-commerce companies have started to test the "electronic invoice", and the default option when placing an order is "electronic invoice" or "no invoice". In this case, consumers need to manually modify the default options in order to finally get the most formal paper invoice instead of "electronic invoice" or simply "no invoice".

In addition, it should be noted that because the above-mentioned e-commerce companies often offer full discounts for promotion, the final invoice amount is often not the selling price of the goods, but the paid amount after deducting the full discount. In addition, if consumers use shopping cards to pay for orders, they will no longer issue invoices, because the shopping cards have already issued official invoices when they are sold.