The service invoice includes shipping information, catalog item number and special notes and instructions to you buyers. It also allows you specify the payment terms, item quantities, tax rate and shipping and packing fees. If you are looking for the Invoice Template for your business, I would also recommend you to take a look at the Purchase Order Template with automatic Invoice tool, Service Invoice Template and Packing Slip Template. Sales Invoice Template for Excel can be a real help to bill your customers. Creating Custom Invoice Form For your business: You can download this template and customize it with your business name, logo, business address and contact details and save your invoice as a template (.xlt) in preferred folder on your computer. Preparing your Invoice for new customer is really easy: open your saved template and update it with your new customer details and assign the invoice number as well. Save your file with the number of your invoice instead of the name (Eg. 000151.xls), this should make things easier when you need to look for it again. Sending your invoice: Invoice can be printed on your standard printer to be mailed or faxed to the customer or can also be converted to a PDF (may require a PDF add-on) and than e-mailed to your customer.