An invoice, often called a bill, is a commercial document that itemizes the products or services rendering, along with their costs, to a customer or receiving party. As a legal document, it serves as proof of purchase, thereby solidifying the transaction.
Beyond its fundamental role in financial transactions, invoices facilitate seamless record-keeping for both parties involved. Historically, the widespread use of invoices can be traced back to the 14th century, with early iterations being handwritten or printed on paper.
