Free Auto Repair Estimate Template & Generator
A repair estimate is the record of what the customer agreed to before the car came apart. This template carries the vehicle, mileage, VIN and repair order number alongside the reported concern and what the diagnosis actually found, then prices each labor operation at its own hours, lists parts by grade rather than by name alone, adds shop supplies and tax, and records the dollar ceiling the customer authorized along with the time they authorized it.
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| Description | Qty | Rate | Amount |
|---|---|---|---|
| Diagnostic testing | 1 | $165.00 | $165.00 |
| Brake service labor | 2.5 | $145.00 | $362.50 |
| Brake parts allowance | 1 | $390.00 | $390.00 |
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Use-case checklist
What to include in a auto repair estimate
Nearly every repair dispute is the same dispute: the customer says they approved one number and the final bill shows another. A written estimate carrying the concern, the diagnosis, the hours per operation, the parts grade and a time-stamped authorization is the only version of that conversation you can produce weeks later. Parts grade is the quiet one. A customer billed for a hub assembly who later sees an aftermarket box in the trash will ask whether they paid for an original-equipment part, and an estimate that already said aftermarket ends that in a sentence. Many states regulate written repair estimates and how far a final bill may exceed one, so confirm your own state's rules rather than assuming a verbal go-ahead covers you.
- customer, vehicle, VIN, and mileage
- reported concern and diagnosis
- labor operations and hours
- parts, supplies, fees, and tax
- authorization limit and added-work process
Example starting lines
| Description | Qty | Rate |
|---|---|---|
| Diagnostic testing | 1 | $165 |
| Brake service labor | 2.5 | $145 |
| Brake parts allowance | 1 | $390 |
Complete it cleanly
Identify the vehicle, mileage, concern, diagnostic result, parts quality, labor hours, fees, and tax. State that added work requires authorization and record the approved amount before repairs exceed it.
How to make an auto repair estimate in 6 steps
Open the estimate generator
Start from this page so the estimate opens with fields and sample lines already set up for independent repair shops and mobile mechanics. No account is needed to create or preview.
Enter both parties
Add your business name, address and contact details, then the customer name and address exactly as they should appear on the record.
Add the auto repair lines
Replace each sample line with the real work or goods. Make sure the document shows customer, vehicle, VIN, and mileage, reported concern and diagnosis, labor operations and hours.
Check the figures
Totals calculate as you type. Confirm quantities, rates, any tax line and the final total against your own records before you send anything.
Set the reference and dates
Give the estimate a unique number and the correct date so it can be traced later and matched to related documents.
Review and download the PDF
Identify the vehicle, mileage, concern, diagnostic result, parts quality, labor hours, fees, and tax. State that added work requires authorization and record the approved amount before repairs exceed it. Preview is free; a PDF download costs $4.99, or is included with Unlimited.
Worked example
Front brakes and a wheel bearing, authorized by phone with a ceiling
Dana Whitfield brought a 2017 midsize sedan with 128,412 miles into Caldwell Auto Works on Sept 14, 2026, reporting grinding from the front under braking and a pull to the right. The shop opened RO 18-2290 and put the car on the lift for a diagnostic inspection before quoting anything.
- Vehicle, ticket and Sept 14 findings: 2017 midsize sedan, 128,412 miles, VIN ending 6C4471, customer Dana Whitfield, concern recorded as grinding under braking with a pull to the right; inspection found front pads worn to the wear indicator, both front rotors scored below the discard thickness stamped on the hat, and lateral play with a growl at the front right hub
- RO 18-2290
- Diagnostic inspection, 0.5 hr at $155.00, credited back in full if the repair is authorized
- $77.50
- Labor operation 1: front brake pads and rotors, 1.8 hr at $155.00
- $279.00
- Labor operation 2: front right hub and bearing assembly, 1.4 hr at $155.00 after the overlap credit for suspension already disassembled in operation 1
- $217.00
- Labor subtotal: 3.7 hours at $155.00 is $573.50, less the $77.50 diagnostic credit now that the repair is authorized, leaving 3.2 billed hours
- $496.00
- Parts, aftermarket grade as quoted and shown on the ticket: front pad set $92.00, two coated rotors at $78.00 each, hub and bearing assembly $186.00
- $434.00
- Shop supplies at 6% of the $496.00 net labor, covering cleaner, lubricant, hardware and disposal
- $29.76
- Sales tax, illustrative here at 6.75% on parts and supplies of $463.76, with labor stated separately on this ticket. Both the rate and which lines are taxable differ by state, so confirm yours with your state tax authority or your accountant
- $31.30
- Estimate total on RO 18-2290
- $991.06
- Authorization recorded: Dana Whitfield approved $991.06 by phone at 9:42 a.m. on Sept 14 and set a stop-work ceiling requiring a second call before any work passes
- $1,150.00
The failure is almost never the price, it is the second repair. A seized caliper found at teardown is a new call, a new figure and a new approval, not something that can quietly ride under the $1,150.00 ceiling because the customer already said yes once.
When this document is the right choice
Use this estimate to set a realistic expected cost before the final scope is known. An estimate is an informed approximation, not a final invoice. State the assumptions that could move the price and replace it with a quote or invoice once scope is confirmed.
Frequently asked questions
What is an overlap credit and should the customer see it on the estimate?
When two operations require the same disassembly, billing the published time for both charges the customer twice for one teardown. On RO 18-2290 the hub and bearing is billed at 1.4 hours rather than its standalone time because the brake job already had the front suspension apart. Show it on the line. A customer who sees you voluntarily reduced the hours on the second operation reads the whole ticket differently, and it is a far better answer to why is this so expensive than a lecture about labor guides.
The customer authorized $991.06 and teardown turned up a seized caliper. Can I just fix it?
Stop and call. Even with a $1,150.00 ceiling initialed, a caliper is a different repair with different parts and hours, not an overrun on an approved one, and the ceiling exists to catch small variances rather than to pre-approve new work. Quote the caliper separately, record the time and the name of whoever approves it, and note it on the repair order. Many states have specific rules about added work on a written estimate, so confirm what yours requires before you make a habit of the shortcut.
How should I charge for diagnosis on an estimate the customer might decline?
Price it as its own line with its own time, and state the credit condition in the same sentence. Here it is 0.5 hours at $155.00, credited in full if the repair is authorized, so the ticket shows the $77.50 charged and then reversed once Dana Whitfield said yes, while a customer who takes the car elsewhere still pays for the inspection that produced the diagnosis. Say this before the car goes on the lift, not after. Diagnosis given away for free is also diagnosis a customer will treat as a second opinion they owe you nothing for.
Do I have to state whether the parts are aftermarket, remanufactured or original equipment?
Put the grade on every parts line as a matter of practice, because the customer will find out eventually and would rather learn it from you. This ticket says aftermarket grade as quoted, so a $186.00 hub assembly is understood for what it is. If a customer wants original-equipment parts, requote the line rather than substituting silently. Your state may also have disclosure rules covering used, rebuilt or aftermarket parts on a repair estimate, so check them with your state authority or trade association.
How should shop supplies appear so they do not read as a junk fee?
Show the basis and say what it buys. Here it is 6% of labor covering cleaner, lubricant, hardware and disposal, which is $29.76 on the $496.00 of labor actually billed. A bare line reading shop supplies $29.76 invites the question, while a line naming the percentage and the contents mostly does not. If you cap the charge, print the cap. Tax treatment of supplies and labor varies by state, so confirm with your accountant how your ticket should apply it.
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