Published November 2026.
The vehicle identification number, or VIN, is a car’s fingerprint. Number plates can change, but the VIN stays with the car for life, which is why checking it is one of the best ways to spot a stolen or cloned car. Here’s what a VIN is, how to read it, where to find it, and what to do if it doesn’t match.
What is a VIN?
A VIN is a unique 17-character code given to a car by its manufacturer and stamped into the bodywork. Every vehicle registered in the UK must have one. It’s sometimes called the chassis number, and older cars, built before 17-character VINs became standard around 1981, may have a shorter one.
How to read a VIN
| Characters | What they mean |
|---|---|
| 1 to 3 | World manufacturer identifier: who made the car and in which country |
| 4 to 9 | Vehicle descriptor: model, body and engine details, plus a check digit |
| 10 | Model year |
| 11 | The factory that built it |
| 12 to 17 | The car’s own serial number |
The letters I, O and Q are never used, so they can’t be confused with the numbers 1 and 0. A VIN containing them is wrong.
Where to find the VIN
- Through the windscreen: a plate at the bottom corner of the windscreen, usually on the driver’s side.
- Door pillar: a sticker or plate where the driver’s door closes.
- Engine bay: stamped into the bulkhead or a metal plate under the bonnet.
- Under the floor: some models have it stamped under a flap in the carpet or under a front seat.
- On the V5C logbook: in the vehicle details on page 2, in the box labelled “E: VIN/Chassis/Frame No.”
A car can show its VIN in several places. Check at least two, and make sure they’re identical and look untouched: scratched, re-stamped or loose VIN plates are a warning sign. A missing, illegible or obviously altered VIN, or two different VINs, is a major MOT failure.
Why the VIN must match the V5C
GOV.UK’s advice to used car buyers is to check the VIN and engine number match the logbook. Thieves clone cars by copying the identity of a legitimate car of the same make, model and colour, fitting false number plates and sometimes false VIN labels. The plates will match the paperwork; the VIN stamped into the body often won’t.
If you buy a cloned or stolen car, the police will seize it, and you won’t get it back. You’ll be left trying to recover your money from the seller, who has usually disappeared.
What to do if the VIN doesn’t match
- Don’t buy the car, and don’t hand over any money.
- If you think the car is stolen, call the police on 101 (or 999 if a crime is happening).
- Report a scam advert to Report Fraud, which replaced Action Fraud in December 2025.
Can I check a VIN online?
The DVLA’s free vehicle enquiry service doesn’t show the VIN. Our VIN check, part of every Silver and Gold check, lets you confirm the VIN on the car matches the one held for that registration, alongside stolen, write-off and plate change records.
Frequently asked questions
Where is the VIN on a V5C?
On page 2, in the vehicle details section, in the box labelled E: VIN/Chassis/Frame No.
Is the VIN the same as the chassis number?
Yes, the two terms are used for the same thing. Older cars may have a shorter chassis number rather than a 17-character VIN.
Can two cars have the same VIN?
Not legitimately. Two cars showing the same VIN means one of them is cloned.
Does the DVLA check show the VIN?
No. The DVLA’s free online check doesn’t show it. A history check can confirm the VIN matches the registration.
Sources
- GOV.UK: vehicle identification number
- GOV.UK: checks to make when buying a used car
- DVSA: MOT inspection manual, identification of the vehicle (October 2026)
- GOV.UK: get vehicle information from DVLA
- GOV.UK: Report Fraud, the new service (4 December 2025)
Confirm a car’s VIN matches its registration with our VIN check, part of every Silver and Gold check.
