As a small business owner, you need to invoice your customers in order to get paid for the work you do. Sending an invoice to your clients helps you charge them for the services you provide. To invoice, a business will create a professional document outlining the amount due, the payment due date, an itemized list of services provided and an explanation of the company’s payment terms. 

Invoices provide a record of sale so you can track your earnings and transactions. It also provides the client with an official record of the products or services they received, along with all critical payment details.