An invoice is a time-stamped commercial document that itemizes and records a transaction between a buyer and a seller. If goods or services were purchased on credit, the invoice usually specifies the terms of the deal and provides information on the available methods of payment.

a document that lists things provided or work done, gives their cost, and asks for payment: raise/generate an invoice I raised an invoice for work done last year and use last month. issue/send/submit an invoice The supplier must issue an invoice for all taxable supplies. pay / settle an invoice.