Is a car history report worth it?

A history check costs a small fraction of the price of a car, and it can uncover the problems that hurt most after you buy: a car that still has finance owed on it, one that was stolen, or one that was written off and rebuilt. For any used car you are seriously thinking of buying, it is worth doing. Just be clear about what it can and cannot tell you.

What a history report can show

• Outstanding finance (UK). If money is still owed on the car, you could end up in a dispute with the lender over who owns it, even after paying the seller. Paid UK checks look for this; the free government checks do not.
• Theft. Whether the car is recorded as stolen.
• Write-offs, salvage and flood titles. Whether an insurer declared it a total loss, or a US title carries a brand such as salvage, junk or flood.
• Mileage history. Readings recorded over time, for example at MOT tests, inspections, title transfers or services. A reading that goes down is a warning sign of "clocking" (rolling the odometer back).
• Reported accidents and service visits. Some commercial reports include accidents reported to insurers or police and visits to garages that share data.
• Number of owners and how the car was used, for example as a rental or company car.

What it can miss

A report is only as complete as the data behind it.

• Unreported damage. If an accident was repaired privately without an insurance claim or police report, it may not be on any report.
• Mechanical condition. A report does not tell you whether the gearbox is slipping or the brakes are worn. The FTC says reports typically do not list mechanical problems.
• Gaps between sources. The US government's NMVTIS system says it is deliberately concise and that not all states report to it, so a clean result can be a false negative. Commercial providers each use different data, so two reports on the same car can differ.
• Recent events. Records can take time to reach a database.

Your options in the US

• NMVTIS (the National Motor Vehicle Title Information System) is run for the US Department of Justice. Reports come from approved providers listed at vehiclehistory.gov. They cover title brands such as junk, salvage or flood, the latest reported odometer reading, insurance total-loss records, transfers to salvage or recycling yards, and in some cases theft data. They are the best place to check title problems, but they are not a full accident or service history.
• Commercial reports such as Carfax and AutoCheck add reported accidents, service records and auction data on top of title information. Some dealers include one with the listing; ask if you do not see it. We have not found independent evidence that one brand is reliably more complete, so we do not recommend one over the other.
• Recalls. NHTSA's recall lookup is free with the VIN and shows open safety recalls.

Your options in the UK

• GOV.UK MOT history (free). Enter the number plate to see every MOT result, the mileage at each test, failure items and minor defects, and whether the car has an outstanding safety recall (depending on the manufacturer). This is the best free way to spot mileage that does not add up and a car that keeps failing on the same items.
• GOV.UK vehicle information (free). Confirms details such as the first registration date, tax and MOT status, and when the last V5C was issued. Useful for checking the seller's details match DVLA records.
• Paid history checks (the "HPI check" type, sold by several companies). These add outstanding finance, stolen markers and insurance write-off records, which the free services do not cover. The RAC recommends running one before you view the car. If you buy from a dealer, ask whether they have already done one and can show you the result.

So is it worth it?

Yes, if you are buying privately, the car is a few years old or more, the price looks low for what it is, or the seller's story has any gaps. That is when hidden finance, a past write-off or clocked mileage is most likely to catch you out.

It is less critical if you are buying from a franchised dealer that shows you a recent check and gives you a warranty, but it is still worth reading their report yourself.

Either way, do the free checks first. The MOT history (UK) and a recall lookup cost nothing and can rule a car out in a minute.

What to do with the result

1. Make sure the VIN or registration on the report matches the car and its documents exactly.
2. Compare the mileage history with what the odometer shows and what the seller says.
3. Ask the seller to explain any accident, write-off or gap in the history. A good answer with paperwork is fine; vagueness is a reason to walk away.
4. Book an independent inspection anyway. Our used car checklist covers what else to check before you pay.