The V5C (logbook) shows the registered keeper, not necessarily the legal owner — never rely on it alone as proof someone has the right to sell the car. Check the watermark, DVLA serial number colour, and that every detail (VIN, engine number, colour) matches the physical car before handing over money, and always complete the seller/buyer sections properly to notify DVLA — it's free.
At a glance
| Check | Why it matters |
|---|---|
| Watermark visible when held to light | Genuine DVLA-issued V5Cs carry a specific watermark |
| Document reference number starts correctly | Newer V5Cs (issued since 2020) use red serial numbers; much older stolen blank V5Cs are a known fraud pattern |
| VIN matches car, V5C and finance/history check | Mismatches suggest cloning or fraud |
| Seller's name matches ID | Confirms the registered keeper is who they claim to be |
What the V5C actually proves — and doesn't
The V5C registration certificate records who DVLA has as the registered keeper of a vehicle — it is explicitly not proof of legal ownership. In most cases keeper and owner are the same person, but not always (for example, on finance, the finance company legally owns the car until it's paid off, even though the keeper is named on the V5C). This is exactly why an HPI-style finance check matters alongside checking the V5C.
Checking the document is genuine
- Hold it up to the light and check for the DVLA watermark running through the paper.
- V5Cs issued since 2020 have a red serial number in the top right rather than the older blue/black format — a mismatch between issue-date styling and document age can be a red flag.
- Check the document isn't damp, torn or altered-looking around the vehicle details section.
- Cross-check the document reference number style is consistent with when the seller says it was issued.
Matching the details to the actual car
- Check the Vehicle Identification Number (VIN) stamped on the car (commonly in the engine bay, door sill, or under the windscreen) exactly matches the V5C.
- Check registration plate, make, model, colour and engine size all match what's in front of you.
- Ask to see photo ID matching the registered keeper's name on the V5C.
- If the seller is not the registered keeper (e.g. selling on behalf of someone else, or a trader), ask why and get it in writing.
Completing the paperwork correctly
The V5C has a section for the seller to complete with the buyer's details and the sale date, which the seller then sends to DVLA (free of charge) to notify the change of keeper — this should be done immediately, not left for 'later'. The buyer keeps the green 'new keeper' slip as interim proof until the new V5C arrives by post, usually within a few weeks.
If a seller can't produce a V5C at all, or offers a photocopy instead of the original, treat it as a serious warning sign — you can apply to DVLA for a replacement V5C (£25) if the original is genuinely lost, so a legitimate seller has no good reason not to.
Frequently asked questions
Does the V5C prove someone owns the car they're selling?
How do I know if a V5C logbook is genuine?
What should I do if a private seller doesn't have the V5C?
Is notifying DVLA of a change of keeper free?
What is the green slip from the V5C for?
Sources & further reading
- GOV.UK – V5C registration certificate
- GOV.UK – buying or selling a vehicle
- DVLA – vehicle registration guidance
Figures, prices and policy details were current at the last-updated date above. Automotive pricing, incentives and regulations change frequently — verify time-sensitive details with the linked primary sources. Read our editorial policy and fact-checking standards.
