Auto Repair Estimate Template for Mechanics
VIN and mileage in the header, flat-rate labor hours, parts with part numbers, shop supplies, diagnostic fee and sublet work in one signed PDF.
- Free, no signup
- PDF in about two minutes
- Works on a phone
What makes an auto repair estimate different
A car repair estimate is closer to a legal document than most trade estimates. In California, the Automotive Repair Act requires a written estimate and the customer's authorization before work begins, and the shop cannot go over the estimate without consent. Even where the rules are lighter, the estimate is the first thing a customer pulls out when the bill is higher than expected.
It also has a different header. The customer and the address matter less than the vehicle: year, make, model, VIN and mileage in. Write the complaint in the customer's words, such as "grinding from front when braking", so the estimate shows what you were asked to fix.
Structure the line items
Each job gets a labor line and its parts below it. Labor hours come from your flat-rate labor guide, not the clock.
| Description | Quantity | Unit | Unit price |
|---|---|---|---|
| Labor, front pads and rotors (book 1.5) | 1.5 | hour | $165 |
| Front brake pads, ceramic, PN on file | 1 | set | $72 |
| Front brake rotor, PN on file | 2 | each | $85 |
| Shop supplies, 8% of labor | 1 | each | $19.80 |
| Sublet, 4-wheel alignment | 1 | each | $129 |
Print the part number and the part type on each parts row: new OEM, aftermarket, used or rebuilt. California requires the final invoice to say which, and stating it on the estimate avoids a mismatch later. Sublet work, meaning anything you send to another shop, goes on its own line.
When the fault cannot be found without taking something apart, write a teardown estimate first: the labor to disassemble and inspect, and the cost to put it back together if the customer declines the repair. California expects that on the estimate, and it keeps a customer from leaving a car in pieces over a bill they never agreed to.
Worked example: front brakes and fluid flush
A 2019 sedan at 68,400 miles. The customer reports grinding from the front when braking. Inspection shows front pads at 2 mm and scored rotors; brake fluid tests high for moisture.
| Description | Qty | Unit | Unit price | Amount |
|---|---|---|---|---|
| Diagnostic, brake noise and road test | 1 | each | $120.00 | $120.00 |
| Labor, front pads and rotors (book 1.5) | 1.5 | hour | $165.00 | $247.50 |
| Front brake pads, ceramic | 1 | set | $72.00 | $72.00 |
| Front brake rotor | 2 | each | $85.00 | $170.00 |
| Labor, brake fluid flush (book 0.8) | 0.8 | hour | $165.00 | $132.00 |
| Brake fluid, DOT 3, 12 oz | 2 | each | $12.00 | $24.00 |
| Shop supplies, 8% of repair labor | 1 | each | $30.36 | $30.36 |
| Subtotal | $795.86 |
Shop supplies are 8% of the $379.50 in repair labor. Sales tax on parts goes below the subtotal at your state's rate; in many states, labor on repairs is not taxed. Note on the estimate that rear brakes were inspected and measured, even if they need nothing, so the customer knows they were checked.
Free download
Auto repair estimate template, ready to edit
The worked example above as a file, with its line items and terms already filled in. Change the prices, add your details and send it.
Or skip the file: fill it in above and download a PDFAll trade templates
Terms that belong on an auto repair estimate
- Validity: "Estimate valid for 15 days or 500 miles, whichever comes first."
- Diagnostic fee: "Diagnostic fee of $120 is due whether or not the repair is approved."
- Additional work: "No work beyond this estimate will be done without your approval. Additional repairs will be quoted and authorized first."
- Replaced parts: "Replaced parts available for return on request at the time of authorization, except warranty and core-charge parts."
- Warranty: parts and labor warranty, for example 12 months or 12,000 miles.
- Storage: a daily storage charge if the vehicle is not picked up within a stated number of days after completion.
The common dispute: the bill grew overnight
The customer approved $796 for front brakes. The next morning the tech finds a leaking caliper, replaces it, and the invoice reads $1,050. Even if the caliper truly needed it, the shop has a problem: in California that charge is not collectable without consent, and anywhere else it starts a fight at the counter.
The fix is a written rule and a habit:
"Any additional work or parts above this estimate require your authorization before work is performed. Phone authorizations are recorded with date, time, name and number."
Then call, log the approval on the repair order, and add the caliper as a separate line. The customer pays more, but they agreed to it before you started.
Prices on this page are ballpark US figures in US dollars for early 2026. They show how a quote is put together, not a rate survey: price from your own costs and your local market.
How to use
Three things, then download
Your business name, the client and the line items are all a PDF needs. Tax, dates and terms are there when you want them.
- 01
Header with the vehicle
Shop name, phone and any state registration number, then customer name, year, make, model, VIN, mileage in, and the customer's complaint in their own words; put the vehicle details and complaint in the notes.
- 02
Labor by the book
One labor line per job, with hours from your flat-rate labor guide times your posted hourly rate, and the job described as the guide names it.
- 03
Parts with numbers
Each part on its own row with the part number, quantity and whether it is new OEM, aftermarket, used or rebuilt. Shop supplies and sublet work on their own lines.
- 04
Get the authorization
Validity, diagnostic fee terms, how extra work will be approved and a signature line before any work starts. Download the PDF.
Use cases
Frequently asked questions
A visual estimate for obvious work, like worn brakes, is usually free. When the cause has to be found first, shops charge a diagnostic fee, commonly $120 to $200 for the first hour, and many credit it toward the repair if the customer approves it.
In California, yes. Under the Automotive Repair Act enforced by the Bureau of Automotive Repair, a shop must give a written estimate for parts and labor and get the customer's authorization before starting work. Other states have their own rules, and a signed estimate is the safe practice everywhere.
In California, not without the customer's consent. If more work or parts are needed, the shop must get authorization first, and when it is given by phone the shop records the date, time, name of the person and the phone number on the invoice.
It covers rags, cleaners, lubricants and small hardware that are not worth itemizing. It is usually 5% to 10% of labor, often capped at $35 to $50, and should appear on the estimate as its own line rather than as a surprise on the invoice.
Most shops use a flat-rate labor guide that lists standard hours for each job on each vehicle. The estimate shows those hours times the shop's posted rate, for example 1.5 hours at $165 for front pads and rotors, regardless of how fast the technician actually finishes.
Seven to thirty days is common; the tool defaults to 30 days. Shorten that if parts prices or availability move quickly. The vehicle's condition can also change if driven, so give every estimate a valid-until date.
Related tools
Estimate templates by trade
Each page loads the line items that trade actually bills, in the units it bills them. Ballpark US figures, there to show the structure.