What each line on this invoice is for
A service invoice is an invoice for services rendered: a visit, the time spent and whatever was used. The customer cannot hold a service in their hands, so the paper has to say what happened.
- Service call
- The visit itself. If the visit is free when the customer goes ahead with the work, show it at zero, so they see it was counted.
- Labor
- What you did and the hours, or a flat price for a named service.
- Parts and supplies
- Anything you supplied, one line each.
- Travel
- A travel charge, if you have one, on its own line and agreed before the visit.
In the notes, write what you found and what you would look at on the next visit.
Where service paperwork goes wrong: the description says service and nothing else. Write what was serviced, where it is, and what you did, in the customer's words.