legal analysis: the first method: you can contract the unit to buy food to an agency, which will buy food, and then the agency will issue an invoice, provided that there is a relevant contract or agreement.

the second method: if you usually buy food in this store, you can get together for a week or a month, and let the shopkeeper bring his ID card to the window of the local tax department to make an invoice. Of course, this requires you to talk to the shopkeeper about the tax.

Legal basis: Measures for the Administration of Invoices of the People's Republic of China

Article 19 Units and individuals that sell goods, provide services and engage in other business activities shall collect money from foreign businesses, and the payee shall issue invoices to the payer; Under special circumstances, the payer will issue an invoice to the payee.

article 21 all units and individuals engaged in production and business activities shall obtain invoices from the payee when purchasing goods, receiving services and paying for other business activities. When obtaining an invoice, it is not allowed to change the name and amount.