What an HPI Check Does Not Cover (And What to Do About It)
Quick answer
An HPI check covers a car's legal and financial background: outstanding finance, insurance write-offs, stolen markers, mileage anomalies and MOT history. What it does not cover is service history, so it cannot tell you whether the car has actually been maintained. To fill that gap you need a separate service history check against official manufacturer records.
If you are buying a used car in the UK, you have almost certainly heard of an HPI check. It is the standard recommendation from every motoring journalist, car-buying guide and well-meaning friend. Run an HPI check before you hand over any money. Good advice. But incomplete advice.
Here is what most people do not realise: an HPI check, or any standard vehicle history check, tells you about a car's legal and financial background. It does not tell you whether the car has been properly maintained.
That gap matters more than most buyers think.
What an HPI check actually covers
Before explaining what is missing, it is worth being clear about what a standard vehicle history check does include. Whether you use HPI, Autotrader, CarVeto or any of the other providers in the market, the core data comes from the same underlying sources. For a detailed breakdown of every section of a vehicle history report, see our guide on what an HPI check is and what it shows.
A standard vehicle history check covers:
Outstanding finance. Whether the car is still subject to a PCP, HP, conditional sale or logbook loan agreement. If it is, the finance company legally owns the car, not the seller. If you find a finance marker, read our guide on outstanding finance on a used car before doing anything else.
Insurance write-offs. Whether the car has ever been declared a total loss by an insurer, and which category applies, Cat A, B, S or N.
Stolen markers. A live check against the Police National Computer to see whether the car is currently recorded as stolen.
Mileage anomalies. Comparing recorded mileages from MOT tests and finance events to identify potential odometer tampering.
MOT history. Every test result, advisory note and recorded mileage from DVSA records.
Previous keepers. How many people have owned the car and the dates of each ownership change.
Plate and colour changes. Any previous registration plates the car has carried and any changes to its recorded colour.
This is genuinely important information. A clean vehicle history check tells you the car is not stolen, not subject to outstanding finance and has not been written off. That is the legal and financial picture sorted.
But it tells you nothing about whether the engine has been serviced on time, whether the cambelt has been changed, or whether the car has had any dealer attention at all.
The gap: service history
A vehicle history check and a service history check are two entirely different things. They use different data sources, cover different risks and answer different questions. We have written a full piece explaining the difference between a vehicle history check and a service history check if you want the detailed comparison.
A vehicle history check answers: is this car legal and financially clear to buy?
A service history check answers: has this car been properly looked after?
Most buyers understand that a car with full service history is worth more than one without. What fewer buyers understand is that you cannot verify service history through an HPI check or any standard vehicle history check. The data simply is not there.
When a car has been serviced at a franchised dealership since 2012, those service records exist in the manufacturer's own database, the same system the dealership uses to log every visit. That data is separate from the insurance, finance and police databases that power vehicle history checks.
This means a car can show a completely clean HPI check while having no recorded service history at all. Or a seller can hand you a paper service book with stamps in it, stamps that may or may not be genuine, while a standard vehicle history check cannot tell you either way.
Why service history matters more than most buyers realise
The financial case is straightforward. Research consistently shows that cars with a complete, verifiable service history sell for more. Depending on the brand, age and mileage, a full dealer service history can add between £1,000 and £3,000 to a car's value. For premium brands the gap is wider.
But the real risk is mechanical. An unserviced car is not just worth less. It is less reliable. A car that has missed oil changes develops engine wear faster. A car that has never had its brake fluid changed has a brake system that does not work as it should. A car with an overdue cambelt is a potential write-off waiting to happen.
None of this shows up on an HPI check.
What sellers know that buyers often don't
Private sellers and dealers who list cars as having full service history know that most buyers cannot easily verify the claim. A paper service book with stamps is easy to copy. A car listed with "some service history" is usually priced accordingly, but buyers rarely know exactly what is missing.
The sellers who do have genuine, verifiable manufacturer service records know those records are worth money. A Volkswagen owner who has had every service done at a Volkswagen dealer since 2015 has records sitting in Volkswagen's own database that prove exactly that. Until recently, accessing those records required going back to the original dealership.
What to do about it
The answer is to run both checks, not instead of each other, but alongside each other.
A vehicle history check handles the legal and financial risks. A service history check handles the maintenance record. Together they give you the complete picture that an HPI check alone cannot provide.
ServiceStamp connects directly to official manufacturer databases across 39 brands to retrieve those OEM service records. Not a generic third-party database, but the same records that franchised dealerships use. For cars serviced at main dealers from 2012 onwards, those records can be retrieved in minutes.
You can run them separately or together as a full check at £19.99, saving £5 versus buying them individually.
Not sure whether the free DVLA check is enough instead? We cover exactly that on our free car check page.
The one check no other provider offers
HPI, Autotrader, CarVeto, Carpeep and every other vehicle history check provider in the UK cover the legal and financial background. None of them include official manufacturer service history in their reports.
That is not a criticism of those services. They are doing what they are designed to do. But it means that running an HPI check, however thorough, leaves a meaningful gap in what you know about the car you are buying.
The only way to fill that gap is to check service history separately, and to check it against manufacturer records rather than relying on a paper service book that anyone can produce.
For a full comparison of every UK provider on price, data and what each one misses, see best car history checks UK 2026: ranked and reviewed.
Before your next used car purchase
Run the vehicle history check. Check for finance, write-offs, stolen status and mileage anomalies. Then check the service history. Find out whether the car has actually been maintained, not just whether it looks like it has.
A car that clears both checks is a car you can buy with genuine confidence. For a step-by-step walkthrough of every check worth running, see our guide to buying a used car and the essential pre-purchase checks.
Related reading
- Full car check vs HPI check: what is the actual difference?
- Best car history checks UK 2026: ranked and reviewed
- Vehicle history check vs service history check: what is the difference?
- What is an HPI check? UK vehicle history check explained
- How to do a full car check before buying a used car
- Is a free car check enough? What the DVLA check won't tell you
- Car has outstanding finance: what happens and what to do
