What Carfax does and what it shows you
Carfax is a database that collects and sells reports about a car's past. When you search for a specific vehicle using its Vehicle Identification Number (VIN) — a 17-character code unique to each car — Carfax pulls together records from insurance companies, police reports, service shops, and auction houses to build a history of that car.
A Carfax report tells you whether the car has been in accidents, had major repairs, been flooded, been declared a total loss by an insurance company, or changed owners. It also shows service records if repair shops have reported them. This information helps you understand what you are buying before you hand over money to a private seller or dealer.
Carfax does not tell you everything. It only knows about events that were reported to the companies in its network. A fender-bender that a previous owner paid for in cash and never reported to insurance will not show up. Neither will routine maintenance done at an independent shop that does not report to Carfax. The report is useful, but it is not a complete history.
Key Takeaways
- You need the car's 17-character VIN to search Carfax, which you can find on the driver's side of the windshield or on the title document.
- Carfax reports show accidents, insurance claims, title problems, and service records reported by shops and insurers in its network.
- A single Carfax report costs money, but you can see a limited preview for free on most car listing websites like Autotrader and Cars.com.
- Carfax reports do not show unreported repairs, cash-paid damage, or maintenance at shops outside its network, so they are one tool among several.
- You should also get a pre-purchase inspection from a mechanic and run a title check through your state's motor vehicle department before buying.
How to find a car's VIN
Before you can search Carfax, you need the car's VIN. If you are looking at a car in person, the VIN is stamped on a metal plate on the driver's side of the windshield, visible from outside the car. You can also find it on the title document, registration card, or insurance paperwork for that vehicle.
If you are shopping online, most car listing sites display the VIN in the vehicle details section. On Autotrader, Cars.com, Facebook Marketplace, and Craigslist, look for a line that says "VIN" or "Vehicle ID Number" — it is usually near the price and mileage. Copy the entire 17-character code exactly as it appears, because even one wrong digit will pull up a different car's history.
Where to search Carfax and what it costs
You can search Carfax directly at Carfax.com. Enter the VIN in the search box on the homepage, and you will see options to purchase a report. A single report typically costs between $25 and $35, though Carfax sometimes runs promotions. If you want to check multiple cars, Carfax sells packages of 5 or 10 reports at a lower per-report price.
Before you pay, check whether the car listing already includes a free Carfax preview. Autotrader, Cars.com, Edmunds, and many dealer websites embed a limited Carfax preview that shows major red flags — title problems, total loss declarations, accident counts — without charging you. This preview is often enough to rule out a car. If the preview looks clean and you want the full report with details, then you can pay for the complete version.
Some dealerships will run a Carfax report for you at no charge as part of their sales process. If you are buying from a dealer, ask whether they have already pulled the report. If they have, they should show it to you without extra cost.
What information appears in a full Carfax report
A complete Carfax report is organized into sections. The Title and Ownership section shows how many owners the car has had, whether the title is clean or branded (branded means the state has marked it as salvage, flood, lemon, or rebuilt), and any liens against the car. A branded title is a major red flag and usually means the car was declared a total loss at some point.
The Accident and Damage section lists reported collisions, the severity (minor, moderate, severe), and whether airbags deployed. The Service and Repair section shows maintenance records reported by participating shops — oil changes, brake work, transmission repairs, and so on. This helps you see whether the car was maintained regularly or neglected.
The Recalls section lists any safety recalls issued by the manufacturer for that model year. This is useful because it tells you whether the car needs repairs that the manufacturer has identified as safety issues. The report also shows whether those recalls have been completed.
How to read red flags in a Carfax report
A branded title is the biggest red flag. If the title says "Salvage," "Rebuilt," "Flood," or "Lemon," the car has been through a major event. A salvage title means an insurance company declared it a total loss. A rebuilt title means it was salvaged and then repaired and re-registered. A flood title means it was damaged by water. Any of these significantly lowers the car's value and reliability, and many banks will not finance a car with a branded title.
Multiple owners in a short time period can signal trouble — it may mean previous owners discovered problems and sold quickly. Similarly, a gap in service records combined with high mileage jumps suggests the car may not have been maintained. If the report shows multiple accidents or a severe accident, have a mechanic inspect the car thoroughly before you buy, because hidden frame damage or electrical problems can show up months later.
Do not assume one minor accident makes a car unsafe. Many cars are in small fender-benders and run fine for years afterward. The key is to use the Carfax report as a starting point for questions, not as a final verdict. If something concerns you, get a pre-purchase inspection from a trusted mechanic before you commit to the purchase.
Other checks to do alongside Carfax
Carfax is one tool, not the only one. You should also run a title check through your state's motor vehicle department to confirm the title status independently. Some states have their own title databases that may contain information Carfax has not yet recorded. Your state's DMV website will have instructions for ordering a title report by VIN.
Get a pre-purchase inspection from a mechanic you trust — ideally someone who is not affiliated with the seller. A mechanic can spot frame damage, rust, transmission problems, and other issues that a Carfax report will not catch. This inspection usually costs $100 to $200 and can save you thousands by revealing problems before you buy.
If you are buying from a private seller, ask to see the maintenance records they have kept. Original receipts from repairs and service are more detailed than what Carfax captures. You can also ask the seller directly about accidents and repairs — they are required by law in most states to disclose known damage, and their answer combined with the Carfax report gives you a fuller picture.
Frequently Asked Questions
Can I search Carfax without a VIN?
No. Carfax requires the exact 17-character VIN to pull a report. You cannot search by license plate, owner name, or partial VIN. If you do not have the VIN yet, ask the seller for it or look it up on the car itself before you visit.
Does Carfax show if a car was in a minor accident that the owner paid for in cash?
Only if the accident was reported to an insurance company, police, or a repair shop in Carfax's network. If an owner paid out of pocket and never filed a claim, Carfax will not know about it. This is why a mechanic's pre-purchase inspection is important — they can spot signs of past repairs that Carfax missed.
Is a Carfax report the same thing as a title check?
No. Carfax is a private company that reports accidents, service, and ownership history. A title check through your state's DMV confirms the legal status of the title itself — whether it is clean, branded, or has liens. You should do both before buying a used car.
What does "rebuilt title" mean on a Carfax report?
A rebuilt title means the car was declared a total loss by an insurance company, then repaired and re-registered with the state. The car is legal to drive and own, but it has a permanent mark on its title. Rebuilt-title cars are worth less and can be harder to insure or finance.
Can I get a Carfax report for a car I already own?
Yes. You can search any VIN on Carfax.com, even if you own the car. Some owners run reports on their own cars to see what information Carfax has collected, or to get a complete history before selling.