if it is purchased from shangchao. There should be a formal tax bill, so you should go to the supermarket to ask for a formal tax bill, and put it in the account with the formal tax bill

If it is purchased by a wholesale and retail enterprise with formal qualifications in the wholesale market, you should also let it issue a legal tax bill by itself or go to the tax bureau

If it is purchased from an individual farmer, if the amount of vegetables purchased each time is not large and does not exceed the VAT threshold, let the farmer open a receipt, which indicates the name, quantity and amount of the vegetables purchased, and the name and seller's name.