Let's take a look at it first. The income tax and business tax of your enterprise are negative taxes. Many restaurants are taxed. I'm also a catering industry. Whether the tax allows the list without formal invoices to be lost or not, your leader will definitely let you calculate the actual cost. General enterprises have two books, especially the catering industry. Do you mean to be a voucher when you say voucher? Is the voucher you made an internal account or an external account? For external accounts, you'd better ask the tax bureau to see how they request it. You can do whatever they ask. For income vouchers, you should manage the cashier (cashier or cashier), the cash and credit cards of daily income, and the cashier should record them every day, and there should be a strict cash management system. For example, more than two people need to sign, the cashier and the manager on duty or others, who can prove the authenticity of the money. A cash receipt can be made every day. This receipt is one day's business expenses, with relevant bills attached. You should manage the cashier (payee) well, and your voucher will be ready. The cashier should do it once a day. It is stipulated that the cashier should pay the bill once a few days, and you should do it once a few days or once a week. It is stipulated that the cashier should pay the bill once a few days