The repair order is a legal document — treat it like one
Auto repair is one of the most regulated paperwork trades in America. Many states require a written estimate before work, customer authorization for the repair (and re-authorization if the price grows past a stated threshold), an itemized final invoice, and an offer to return replaced parts. The work order — shops call it the RO — is where all of that lives. This template's authorization block, parts and labor tables, and notes field map to those requirements; your state's specifics (thresholds, disclosure text) belong in your terms.
Identify the vehicle completely: year, make, model, VIN, odometer in and out, and license plate if you use it. The VIN ties the record to the vehicle regardless of owner; the odometer reading dates the work in the way that matters for warranty and comeback questions.
Parts and labor, the shop way
Auto repair billing separates parts from labor as a matter of law in several states and of custom everywhere. Parts lines carry the part name and quantity at your selling price; labor lines carry the operation and hours. Whether you bill actual hours or book time from a labor guide, the RO should say which — customers who understand book time dispute far less. Sublet work (machine shop, glass, alignment sent out) gets its own labeled line, because reselling outside work without saying so is exactly the kind of thing state inspectors look for.
Record the authorization event itself: who approved, how (in person, phone, text), and when. "Customer authorized by phone 10:20 AM" is one sentence that ends most billing disputes before they start. If findings changed the price mid-job, the re-authorization gets its own sentence.
Findings, declined work, and the close-out
Write inspection findings as measurements: pad thickness, rotor measurement against discard spec, tread depth, fluid condition. Numbers turn "they said I needed brakes" into a documented condition. Work the customer declined belongs on the RO too, labeled clearly — declined recommendations protect the shop when the declined item fails, and they're the highest-converting follow-up list your service writer has. Close with the road test result and the completion date, and have the customer sign at pickup.
What the FTC tells your customer a repair order should contain
Worth knowing what the other side of the counter has been told to expect. The Federal Trade Commission's consumer guidance, Auto Repair Basics, advises customers to ask for a written estimate that identifies the condition to be repaired, the parts needed and the anticipated labor charge, to get a signed copy, and to check that the estimate says the shop will contact them for approval before doing any work exceeding a specified amount of time or money — noting that state law may require exactly that.
On the back end the same guidance is more specific than most shop forms are. It tells customers to get a repair order describing the work done that lists each repair, the parts supplied, the cost of each part, the labor charges, and the vehicle's odometer reading both when the vehicle was brought in and when the repair order was completed. It also tells them to ask for all replaced parts back, again noting state law may require it.
Read that as a checklist against the form above and it maps almost field for field: each repair is a labor line, parts supplied with the cost of each part is the parts table, labor charges is the labor total, and the authorization block carries the approval. The one place the template needs a habit rather than a field is the second odometer reading — the asset line holds the reading at drop-off, so put the out reading in the notes or the close-out sentence. The sample job above does the equivalent by recording the authorization time and the return of old parts in its notes.
State rules are stricter than federal guidance in several places and this is not legal advice — California's Bureau of Automotive Repair is the strictest well-known example, and your own state's thresholds and required disclosure wording belong in your shop's terms.
Aftermarket parts and the warranty question customers ask
Every shop gets the objection: won't using your parts void my factory warranty? Under the Magnuson-Moss Warranty Act, a warrantor generally may not condition a written warranty on the consumer's use of an article or service identified by brand, trade or corporate name unless that article or service is provided free of charge under the warranty, or the FTC has granted a waiver (15 U.S.C. §2302(c)).
The practical consequence for your paperwork is that the work order is the evidence. If a manufacturer later argues a specific aftermarket part caused a specific failure — an argument that is still open to them — what settles it is a dated, itemized record naming the part, the mileage and the operation. A shop with clean ROs is answering that in one document; a shop with lump-sum invoices is answering it from memory. Say it plainly to the customer and hand them the copy.
Where the rules cited above come from
Primary sources, so you can read them rather than take our word for it. This is general recordkeeping context, not legal advice, and it does not replace the rules your own state or jurisdiction applies to your trade.
- FTC — Auto Repair Basics — FTC consumer guidance on written estimates, approval before work exceeding a specified amount of time or money, the contents of a repair order including both odometer readings, and asking for replaced parts back.
- 15 U.S.C. §2302(c) — Magnuson-Moss Warranty Act — A warrantor generally may not condition a written warranty on the consumer's use of a brand-name article or service unless it is provided free under the warranty or the FTC has waived the prohibition.
Auto Repair work order FAQ
Is a car repair work order the same as a repair order?
Yes. Repair order (RO) is the trade term, work order is what customers call it, and car, vehicle and automotive repair work order are all the same document. The form does not change with the name: vehicle identification and odometer, complaint, findings, parts, labor operations, authorization, sign-off.
What does the FTC say a repair order should list?
Its consumer guidance tells customers to get a repair order describing the work done that lists each repair, the parts supplied, the cost of each part, the labor charges, and the odometer reading both at drop-off and at completion — and to ask for all replaced parts back, noting state law may require it. The estimate before the work should identify the condition to be repaired, the parts needed and the anticipated labor charge.
Does using an independent shop or aftermarket parts void the factory warranty?
Not automatically. Under 15 U.S.C. §2302(c) a warrantor generally cannot condition a written warranty on the customer using a brand-name part or service unless it is supplied free under the warranty or the FTC has waived the rule. A manufacturer can still argue a particular part caused a particular failure, which is exactly why the itemized, dated work order matters. This is general information, not legal advice.
Is a written work order legally required for auto repair?
In many states, yes — written estimates, customer authorization before work, and itemized invoices are consumer-protection requirements (California's Bureau of Automotive Repair rules are the strictest well-known example). Check your state's thresholds and required disclosures.
What vehicle information belongs on a repair order?
Year, make, model, VIN, and odometer reading at minimum. The VIN anchors the service record to the vehicle; odometer readings date the work for warranty purposes.
How should declined repairs be documented?
On the work order, labeled as recommended-and-declined, with the finding that prompted the recommendation (e.g., measured pad thickness). It protects the shop and creates a legitimate follow-up list.