What to include on an auto repair invoice
Beyond your shop details, the customer's details, an invoice number and dates, a repair invoice needs a few things most invoices don't.
- Vehicle, VIN and mileage
- Year, make and model, the 17-character VIN and the odometer reading at drop-off. They tie the invoice to one car and give the customer a service history. Add them as custom fields in the invoice details so they print in the header.
- The complaint and the cause
- Write what the customer reported and what you found, such as “Grinding when braking: front pads worn to 2 mm, rotors scored”. A clear cause makes the repair easier to approve and to remember at the next visit.
- Labor as hours × rate
- Put labor hours in the quantity column and your hourly rate beside it, even if you bill from a flat-rate labor guide. Customers compare labor across shops, and hours × rate is what they expect to see.
- Parts with numbers
- List each part on its own line with the part number in the details, and say whether it is new, OEM, aftermarket or remanufactured if that matters for the warranty. Quantity × unit price keeps the math visible.
- Shop supplies and fees
- Shop supplies, disposal of oil, tires or batteries, and environmental fees go on their own lines instead of being buried in labor. A named fee is questioned far less often than a vague one.
- Warranty and authorization
- State the parts and labor warranty, for example 12 months or 12,000 miles, and note that the customer authorized the work. Many places require written authorization before repairs over a set amount, so keep the signed estimate with your copy.