Bill of sale

A bill of sale is a document that describes the sale of goods or property by a seller to a buyer. This is a legal document that clarifies the existence of an asset transfer in exchange for consideration paid by the buyer. A bill of sale can take the form of a receipt for a purchase at a store, or it can be a much more detailed document that describes a significant sale, such as the transfer of ownership in an office building.

A variation is the conditional bill of sale, in which the document is not finalized until some additional event occurs.