CARFAX vs AutoCheck vs NMVTIS: Which Report Do You Need?
Updated 2026-10-01 · 6 min read
CARFAX and AutoCheck can help you investigate accidents, servicing and other recorded history. NMVTIS focuses on title records, mileage, total-loss and salvage history. Choose based on what you want to check about the car—not just the report’s name.
CARFAX and AutoCheck are report products. NMVTIS is a government-overseen information system; consumers buy its records through approved report providers.
For a used-car purchase, start with any complete report the seller already provides. Then decide whether another source could answer a specific unresolved question. No report replaces checking the vehicle itself.
DealsOnCarfax sells vehicle-history reports and is independent of CARFAX, Inc. This guide compares published product information reviewed October 1, 2026. It is not a same-vehicle test or a ranking based on reports we purchased.
What can each report tell you about the car?
Read across each row to compare the same question. “Can show” means the information may appear when it has been reported—not that every vehicle has those records.
| Your question | CARFAX | AutoCheck | NMVTIS-based report |
|---|---|---|---|
| Has it been in an accident? | Can show reported accidents and damage details. | Can show reported accidents and damage details. | Not a full accident history. Total-loss or salvage records can flag serious problems. |
| Was it serviced regularly? | Can show dated service and maintenance entries. | Can show service and maintenance entries too. | Not in the core record. Detailed maintenance and repair history are outside its scope. |
| Has it had a salvage or other problem title? | Can show reported title warnings. | Can show reported title warnings. | A central purpose: state title information and recorded title labels, such as salvage or flood. |
| Does the recorded mileage make sense? | Can show reported mileage and rollback warnings. | Can show reported mileage and odometer warnings. | Can show reported odometer information. It is not a complete mileage timeline. |
| What should I check for an auction car? | Read the available history and compare it with the auction documents. | Look for auction information and any reported announcements, alongside the detailed history. | Check title, total-loss and salvage records; they do not replace auction condition disclosures. |
| Does it give the car a history score? | No AutoCheck-style comparison score. | Yes—the AutoCheck Score. Read it against the similar-vehicle range and detailed events. | No standard NMVTIS comparison score. A seller may add separate features. |
| Can it confirm the car is mechanically sound today? | No. Arrange an inspection. | No. Arrange an inspection. | No. Arrange an inspection. |
What is a “title brand”? It is a label on a vehicle’s title identifying a condition or history, such as salvage, flood or rebuilt. It does not mean the manufacturer’s brand. A total-loss record means an insurer reported the vehicle as a total loss; it is not a description of every repair it needs today.
The NMVTIS column describes the core system. A report seller may add other data. Sources: CARFAX’s report overview, AutoCheck’s report features, Experian’s auction and history information, and the official NMVTIS guide.
How this helps you choose
- “The seller says it has always been serviced.” Look for dated maintenance entries in CARFAX or AutoCheck and ask for invoices. NMVTIS alone will not answer that question.
- “I’m worried it was written off and repaired.” Check total-loss, salvage and title records. An NMVTIS-based report can help with that specific concern; compare it with the title and arrange an inspection.
- “I’m bidding at an auction.” AutoCheck’s auction information is worth reviewing alongside the auction’s own disclosures. A good score alone is not a reason to bid.
CARFAX: read the timeline behind the summary
CARFAX describes accident, service, ownership and vehicle-use records among the information its reports check. For a buyer investigating maintenance, read the dated entries and compare them with the seller’s invoices. A missing service entry is not proof that work was never done; a listed service also does not establish the car’s current condition.
If the seller provides a report, check its VIN and generation date before relying on it. A familiar format is useful only when it belongs to the right car and answers the questions you have.
AutoCheck: use the score with the detailed records
Experian highlights auction information and its AutoCheck Score. The score summarizes report information and provides a comparison range for similar vehicles. Use that range and the underlying entries together rather than treating a number as a pass-or-fail verdict. See Experian’s explanation of the score.
For an auction purchase, ask what the report and auction documents disclose about the specific vehicle. Do not assume any provider captures every auction event, or that a report removes the need to understand the sale’s condition disclosures.
NMVTIS: focus on title, total-loss and salvage history
NMVTIS focuses on key title-related indicators. It is not a retail report brand with one universal price. Choose a consumer provider from the official approved-provider list and check what its offer includes.
A provider may add information beyond NMVTIS. Separate those additions from the federal system’s core records when comparing products. The consumer disclaimer explains that NMVTIS does not contain detailed repair history and that reporting timeliness varies.
Which should you choose for your situation?
- A dealer already supplies a report: read the full document first. Buying a second report is most useful when it addresses a question the first leaves unresolved.
- You want to understand maintenance: examine the available service entries and request invoices. Do not substitute a title-focused report for maintenance evidence.
- You are concerned about a salvage or total-loss history: consider an NMVTIS-based report alongside the actual title and other records. Ask the seller to explain inconsistencies.
- You are buying at auction: examine auction announcements, report events and the auction’s own documentation. A history score alone is not enough.
- Two reports disagree: compare the VIN, report dates and exact event descriptions. Contact the relevant provider about the discrepancy before deciding which explanation to rely on.
Should you buy two reports?
Sometimes a second source can add useful information. It is not automatically necessary for every purchase, and it does not guarantee a complete history. Identify what you are trying to learn before spending again.
For example, if an accident entry lacks detail, a second report might offer more context—but repair invoices and a qualified inspection may be needed to understand the damage. If the problem is simply an old report, first ask for an updated copy.
Compare the purchase terms as well as the report
Check the number of vehicles covered, total payment, access period and any renewal terms. For current published CARFAX prices and our offer, use the report-cost guide. Check AutoCheck and individual NMVTIS providers directly for their current prices.
DealsOnCarfax’s current offer is a $8.99 one-time vehicle-history report purchase using a 17-character U.S. VIN. Review our sample and current offer. This guide does not mean that we sell each of the three products compared above. Available records and retrieval time vary.