An invoice is a document that a seller sends to a buyer to request payment for goods or services that have been provided. It typically includes information such as the date of the sale, the items or services purchased, the price of each item or service, and the total amount due. An invoice serves as a legal document that provides evidence of a transaction and sets out the terms of payment. It is an important tool for a business because it helps the company to track its sales and ensure that it receives payment for the goods or services that it has provided. To create an invoice, a seller typically uses invoicing software or an invoicing template. The invoice is then sent to the buyer, who is responsible for paying the amount due according to the terms set out in the invoice. In summary, an invoice is a document that a seller sends to a buyer to request payment for goods or services that have been provided. It is an important tool for a business because it helps the company to track its sales and ensure that it receives payment for the goods or services that it has provided.