Car Check: What to Check Before You Pay for a Used Car
A proper car check happens in three places. Before you travel, check the registration against DVLA's record, the MOT history and the recall service, all free. At the viewing, check the V5C: the DVL watermark, a serial number outside the two stolen ranges, and a VIN and engine number that match the car. Before paying, run a check for finance, write-offs and stolen markers, because no free service shows them.
Most guides treat a car check as one lookup on a registration. It is really three jobs, done in three places: at home before you travel, beside the car at the viewing, and just before money changes hands. The free lookups cover the first. The second is where a stolen or cloned car gets through, because it depends on a document most buyers misunderstand.
What can you check before you travel?
GOV.UK's own sequence starts before the viewing [1]. Ask the seller for four things: the registration number, the make, the model and the MOT test number. Then check them against three free services:
- DVLA's record. The vehicle enquiry service returns tax and MOT status, the date of first registration, engine size, fuel type and the date the last V5C was issued [4]. If the make or engine size disagrees with the advert, you have saved yourself the journey.
- The MOT history. Every test result with the mileage recorded at the time. Our free car check guide explains how to read it for clocking, and our MOT history page shows the full record.
- The recall service. Enter the registration and it lists safety recalls that have not been checked or fixed on that specific car [3]. Ask the seller for proof that any listed recall was done.
A seller who will not give you the registration before a viewing is telling you something. So is one who gives it and then asks why you looked it up.
What should you check on the V5C at the viewing?
This is the step people skip, and it is the one GOV.UK spells out in the most detail [1]:
The V5C, beside the car
- It has a DVL watermark
- Its serial number is not between BG8229501 and BG9999030, or between BI2305501 and BI2800000
- The details printed on it match what the seller told you
- The VIN and engine number on the car match the ones on the V5C
If the serial number falls in either range, GOV.UK says the V5C might be stolen and that you should call the police as soon as it is safe to [1]. Those ranges are not small. In a Caraxle calculation from the published endpoints, the first covers 1,769,530 serial numbers and the second 494,500: 2,264,030 documents in total that GOV.UK wants you to treat as suspect.
They exist because of a 2006 theft of defective blank certificates, which is also why the red V5C was introduced. If you are offered a car with an old blue V5C, DVLA recommends getting the seller to replace it with a red one before you part with any money [2].
Is the V5C proof that the seller owns the car?
No, and DVLA is blunt about it. Criminals sell stolen and cloned cars with forged or stolen registration certificates, and they get away with it because many motorists believe the V5C is proof of ownership [2]. It records the registered keeper, which is not the same thing.
DVLA's advice is to ask for proof of ownership, such as a bill of sale, and to look at the service records and the MOT certificate to satisfy yourself the sale is legal [2]. In practice that means three questions at the viewing: where did you buy it, what paperwork came with it, and why is the name on the service invoices different, if it is.
What can you not see at the viewing?
Three things never appear on the car, the V5C or any free government service: outstanding finance, insurance write-off records and police stolen markers. A car can pass every check above and still belong to a finance company, or carry a Category S record from an earlier crash.
That is the part a paid check is for. A Caraxle Full Check costs £12.99 and covers write-off, outstanding finance and stolen vehicle records alongside the MOT and DVLA data. Our comparison of paid checks sets out what the rest of the market charges for the same questions, and our write-off check and stolen vehicle check pages explain each record.
Which check catches which problem?
| Risk | Where it shows up | Cost |
|---|---|---|
| Advert describes a different car | DVLA record before you travel | Free |
| Clocked mileage | MOT history before you travel | Free |
| Unfixed safety recall | Recall check by registration | Free |
| Stolen blank V5C | Serial number and watermark at the viewing | Free |
| Swapped identity or cloned car | VIN and engine number against the V5C | Free |
| Outstanding finance | Paid check | Paid |
| Insurance write-off | Paid check | Paid |
| Reported stolen | Paid check | Paid |
What do you have to do once you buy?
Tax the car immediately, using the green new keeper slip from the V5C [1]. Check it is insured before you drive it away; the askMID service shows whether a vehicle is covered [4].
The short version
The registration lookups are quick, free and worth doing at home. The V5C deserves more attention than it gets: watermark, serial number, VIN and engine number, and the understanding that it proves who keeps the car, not who owns it. And the three records that most often cost buyers the car itself, finance, write-off and stolen, are exactly the ones you cannot see at the viewing.
Frequently asked questions
- Is the V5C proof of ownership?
- No. DVLA says so directly, and warns that criminals sell stolen and cloned cars with forged or stolen V5Cs precisely because buyers believe it is. Ask for a bill of sale and look at the service records as well.
- Which V5C serial numbers are stolen?
- GOV.UK lists two ranges: BG8229501 to BG9999030 and BI2305501 to BI2800000. If the serial number on the V5C falls in either, the document might be stolen and GOV.UK says to call the police when it is safe to.
- What if the seller has an old blue V5C?
- DVLA recommends that the seller replaces it with a red one before you pay. The red certificate was introduced after blank certificates were stolen in 2006.
- Can I check for outstanding finance for free?
- No. Finance agreements, insurance write-off records and police stolen markers are not part of any free government service, which is why a paid check exists.
- What do I need to do straight after buying?
- Tax the car immediately using the green new keeper slip from the V5C, and make sure it is insured before you drive it anywhere.
References
- [1]GOV.UK · 2026-10GOV.UK's used vehicle steps: get the registration, make, model and MOT test number, check them against DVLA, check MOT history and recalls; at the viewing check the V5C has a DVL watermark and a serial number outside BG8229501 to BG9999030 and BI2305501 to BI2800000, and that the VIN and engine number match it; tax the vehicle immediately using the green new keeper sliphttps://www.gov.uk/checks-when-buying-a-used-car
- [2]DVLA · 2014-06-18The red V5C followed the 2006 theft of defective blank certificates; DVLA recommends buyers offered a car with a blue V5C have the seller replace it before paying; the V5C is not proof of ownership and DVLA recommends asking for a bill of sale and checking service records and the MOT certificatehttps://www.gov.uk/government/news/dvla-encourages-motorists-to-get-a-red-vehicle-registration-certificate
- [3]GOV.UK / DVSA · 2026-10The GOV.UK recall check uses the registration number and shows safety recalls that have not been checked or fixed; without the registration it needs the manufacturer, model and yearhttps://www.gov.uk/check-vehicle-recall
- [4]GOV.UK · 2026-10The DVLA vehicle enquiry service shows, among other things, the date the last V5C was issued, and askMID checks whether a vehicle is insuredhttps://www.gov.uk/get-vehicle-information-from-dvla
