A promissory note is a written document issued by the buyer himself. It acts as a note of trust signed by the buyer and supplied to the seller on the purchase of goods on a credit basis. Here are some of the prominent features of promissory notes – ● It is a written document created by the buyer. ● It highlights the complete details of the purchase, including the amount to be paid. ● It must have a mark of authentication for the promisor. ● It must feature the names of the buyer and the seller.