An invoice, also known as a bill or statement, is a commercial document that itemizes the products or services a supplier has provided to a customer, along with their prices. For example, if a company sells 100 widgets to a customer for $1 each, the invoice will list “100 widgets x $1 = $100.”
Invoices play a crucial role in business transactions as they serve as legal records of the goods or services exchanged and the amounts owed. They facilitate timely payments, ensure accurate accounting, and support legal proceedings if disputes arise. Historically, invoices have evolved from handwritten documents to electronic formats, streamlining business processes and enhancing efficiency.