First of all, you should register with the tax department. After all, to issue a hand-torn invoice, you need to have the qualification to issue an invoice.
Secondly, you should get the corresponding invoice machine. After all, invoicing requires an invoice machine.
Furthermore, shopkeepers should pay taxes according to the standard of tax law and the percentage of turnover every year.
Precautions for invoicing:
1, don't drive more.
2. Don't drive less.
As long as there is consumption, you need to issue an invoice.