Purchase Invoice A purchase invoice is that legal document which is prepared by the seller. It clearly mentioned the quantity, complete description, and nature of services or goods, respective price against services and goods and all the other details about the goods and services provided. A purchase invoice is usually issued by the seller to the buyer to let him know how much he is required to pay. It is a commercially used document that includes the details about the items purchased by the buyer such as quantity, price, sales tax etc. This document also serves as a proof that…