It won't cost much. The small restaurant mainly has a business license and hygiene license of about one or two hundred yuan, and then there is a tax registration certificate, which is an invoice of how much you estimate it will cost a month. The tax of 7% on the required invoice is estimated to be no more than two or three hundred yuan. Depending on who you are, laid-off workers in cities and towns can be exempted from tax for three years. Besides, I have been engaged in catering for 10 years. You can ask me if I need help.