Can I get an invoice for buying Tibetan medicine from farmers?

You can't. In the process of issuing invoices, the buyer needs to give a valid contract or written agreement between the buyer and the seller, and both buyers must be taxpayers, and it is not allowed to issue purchase invoices without permission. Medicinal materials can be used as raw materials for pharmacy, especially in China, that is, unprocessed or unfinished raw materials of traditional Chinese medicine. Traditional Chinese medicine is a traditional medicine in China. China's medical culture has a long history and is profound. It not only contains thousands of years of Chinese medicine civilization, but also combines modern western medicine civilization, creating a unique cultural phenomenon, which is an important part of China's excellent culture.