This file presents an invoice sample for a service transaction. A formal invoice usually includes the name and contact information of the seller and buyers, the detailed information of the invoice, the details of the transaction and the payment information. This template is created based on these elements. The difference is that this template doesn't have the payment information shown clearly, but you can mark the conditions in the comments part. Besides, this template records the parts used and service in separate sections. It can make the invoice clearer. If you are looking for a service invoice, this template can be very helpful. You can download and modify it to create a customized invoice.