A sales invoice, or sales bill, is an essential and common document used by all kinds of companies. Companies use sales invoices to inform customers of the amount they owe in exchange for goods or ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Michael Boyle is an experienced financial professional with more than 10 years working with ...

Your invoice should state the necessary details about items sold or services rendered to the customer. This includes your terms for payment, which explain when payment is due, the consequences for not ...