Invoice definition in terms of Accounting - QS Study
QS Study

An invoice, occasionally called a sales invoice, is a bill sent by a supplier of a product or service to the buyer. It is a business document that itemizes a transaction between a buyer and a seller. Invoice is a business document which is organized when one sell goods to another. The proclamation is arranged by the seller of goods. An invoice is also known as a bill or sales invoice. It includes the information relating to name and address of the seller and the buyer, the date of sale and the clear explanation of goods with amount and price. If goods or services were purchased on credit, the invoices generally specifies the terms of the deal and present information on the accessible methods of payment.

Invoices are a significant division of your business’s bookkeeping and accounting recordkeeping structure because they record sales transactions.