Diesel mechanic

Diesel Mechanic Invoice Template (Free)

By ShowTheReceipts · Updated

Short answer

A diesel repair invoice needs the unit and VIN, mileage or hours, the complaint, diagnostic time priced separately from repair labor, parts itemized, and travel or after-hours lines where they apply. Copy the template below, or use software that sends it from the roadside the same day.

What belongs on the invoice

  • Business name and contact info
  • Company, unit number, VIN, mileage/hours
  • Service date, time, and location
  • Complaint and work performed
  • Line items — call-out, travel, diagnostic, parts, labor, after-hours, shop supplies
  • Subtotal, tax if applicable, total due
  • Payment terms

The template

[Your Business Name]
[Address] · [Phone] · [Email]

Invoice #____        Date: ______   Time: ______
Bill To: [Company]
Unit #: ______   VIN: __________________
Mileage/Hours: ________   Location: ______________

COMPLAINT: [reported fault, codes]
WORK PERFORMED: [what you did]

--------------------------------------------------
Description                              Amount
--------------------------------------------------
Call-out                                 $______
Travel — ___ hrs/mi @ $___               $______
Diagnostic — ___ hrs @ $___              $______
Parts (itemized)                         $______
  - [part]                               $______
  - [part]                               $______
Labor — ___ hrs @ $___                   $______
After-hours premium                      $______
Shop supplies / disposal                 $______
--------------------------------------------------
Subtotal                                 $______
Tax (if applicable)                      $______
Total Due                                $______

Terms: [due on completion / net __]. Accepted: [card / link]

Codes belong on the paperwork

Write the fault codes into the complaint line. It’s what turns your invoice into a diagnostic record instead of just a bill, and it’s what a fleet maintenance manager will need if the same unit acts up again in three months.

Skipping the copy-paste

Invoicing from the truck with your rates saved means the document leaves with you, and the payment link on it means an owner-operator can settle up before you’re even back on the highway.

Frequently asked questions

Should diagnostic time be billed separately?

Yes. Diagnosis on a modern diesel is skilled work with expensive tooling behind it, and pricing it inside repair labor means you give it away on every job that doesn't turn into a repair.

How do I bill travel to a breakdown?

A call-out fee plus a per-hour or per-mile travel rate beyond a stated radius, both quoted before you roll. An hour each way is normal in this work and shouldn't be absorbed into your shop rate.

Why does same-day invoicing matter so much?

Fleet payment cycles start when the invoice arrives. An invoice sent from the shoulder gets into this month's run; one sent next week starts a month behind and gets paid a month late.

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