A V5 certificate, also called the V5C log book, vehicle logbook, or V5, is the DVLA-issued vehicle registration certificate that records the car’s details and its registered keeper; the V5C is NOT proof of ownership.
If you own, buy or sell a car in the UK, this document is important as it connects the vehicle to the person who has to register it and tax it. It is an official record, not a title deed.
It also helps protect you during a sale. A missing, outdated, or incorrect logbook can delay a deal, reduce buyer trust, and raise questions about the vehicle’s history. The difference between V5 and V5C is mostly one of usage: people often still say “V5”, but the correct name for the current document is the V5C.
The Anatomy of a V5C: What’s Inside?
A vehicle registration certificate is only useful if the details on it match the car in front of you. When you check a V5C logbook example, look at four high-value fields first: the vehicle identification number (VIN), engine number, colour and the registered keeper details.
- VIN (Vehicle Identification Number): This is the car’s unique identity code, sometimes linked to the chassis number. If you need to find the VIN number, check the V5C, then compare it with the VIN stamped on the vehicle itself. If the two do not match exactly, walk away.
- Engine number: This helps confirm the engine fitted to the car is the one recorded. That matters if the vehicle has had major work, a swap, or other changes that should have been declared.
- Colour: If the listed colour does not match the vehicle, that can be a sign of repainting, repair work, or outdated logbook details.
- Registered keeper: This is the person responsible for the vehicle in DVLA records (not automatically the legal owner). If the seller’s story does not line up with the logbook, ask why before paying anything.
- Vehicle registration number: Make sure the number plate, VIN, and keeper details all tell the same story.

Why the V5C Issue Date is an Important Security Check
The issue date is one of the quickest ways to tell whether a logbook is still valid. A V5C is issued by the DVLA each time a new version replaces the old one, so the date printed on the paper document should match the latest record held for that vehicle.
This matters because an older logbook can look genuine and still be useless. For example, if a keeper has moved house, sold the car, or made a change to the V5C, the DVLA may issue a newer version. If someone then shows you an older copy, that document is no longer the current one and should not be relied on.
The issue date acts like a security fingerprint. It can help you spot an outdated logbook, a paperwork mismatch, or, in more serious cases, a document that may have been misused in vehicle fraud.
That is why checking the paper logbook alone is not enough. Use our V5C Issue Date Check to verify if the logbook in your hand is the most recent version issued by the DVLA. It is one of the simplest
car reg checks you can do before you buy.
Red vs. Blue: Which Logbook is Valid?
The valid modern logbook is the red V5C. The DVLA replaced the older blue version after large numbers of blank blue forms were stolen, and it has encouraged motorists to swap old certificates for the newer red ones for years. That means a red V5C is the version you would now expect to see for a legitimate vehicle record issued by the DVLA.
If a seller hands you a blue logbook, treat it as a serious warning sign. It does not automatically prove fraud, but it does mean you should stop and verify the paperwork before you go any further, because old blue forms are widely linked with stolen blank batches and vehicle cloning risk.
A genuine seller should have no problem explaining why an old document is still being used. If the story is vague, the previous owner details do not make sense, or the issue date does not match the latest DVLA record, do not rely on the document just because it looks official.
- Important: Blue logbooks are older versions of the V5C, and the DVLA has encouraged motorists to replace them with the newer red certificate. If a seller presents a blue logbook today, treat it as a reason for extra caution and check the vehicle details carefully before going ahead.
How to Spot a Fake V5C?
Hold it up to the light.
One of the easiest checks is the “DVL” watermark. On a genuine V5C, you should be able to see it when you hold the logbook up to the light. If it is missing, faint in the wrong way, or just does not look right, that should make you pause.
Check how it feels.
A real V5C should feel like an official document. If the paper seems cheap, too glossy, or the ink feels sticky or uneven, something may be wrong. Things like smudged print, odd spacing or mismatched text are small things that can be early signs of a fake or altered logbook.
Make sure the details tell the same story.
This is where many fake documents fall apart. The reference number, issue date, VIN, registration, and keeper details should all line up with the car and the seller’s story. If one detail does not fit, do not brush it off — that is often how logbook fraud gets missed.
Buying or Selling a Car? A Step-by-Step V5C Checklist
If You Are the Buyer:
When you buy a used car, you should not take the whole logbook away with you. What you need is the green new keeper slip — also called the V5C green slip or V5C/2 — from the most recent V5C. That slip is the temporary proof that you are the new keeper while DVLA sends out the updated logbook in your name.
Before you leave, check that the slip matches the car’s registration and that its issue date lines up with the latest DVLA record. This matters because a green slip from an older logbook can cause problems later, even if the rest of the paperwork looks fine.
Before you leave, check that the slip matches the car’s registration and that it comes from the latest V5C, not an older version of the logbook. This is an easy detail to miss, but it matters because an outdated green slip can cause problems when you try to tax the car or wait for the new V5C to arrive.
You will also need the slip to tax the car straight away. Under rules established by the Vehicle Excise and Registration Act 1994, vehicle tax does not pass to the new keeper when a car is sold, so you cannot legally drive away using the seller’s remaining tax. The 12-digit number on the V5C/2 lets you tax the vehicle immediately before it is used on a public road.
If You Are the Seller:
You can complete this online or by post. Online is usually simpler and gives quicker confirmation, while the postal route means completing the relevant parts of the paper logbook and sending them to DVLA. In both cases, you should give the buyer the green new keeper slip and keep a record of the date of sale.
Do not leave this for later. Under the Vehicle Excise and Registration Act 1994 and the Road Vehicles (Registration and Licensing) Regulations 2002, you should tell the DVLA as soon as the sale is completed. Until the transfer is recorded, the vehicle may still be linked to you on DVLA records, which can lead to enforcement issues and may result in a fine. Keep a record of the sale and any confirmation from DVLA.
Common V5C Scenarios & FAQ
What if I’ve lost my V5C?
If you have lost your logbook, replacing it is usually straightforward. If you are the registered keeper and none of the details need changing, you can apply online for a replacement. If you need to update details, you will usually need to use form V62 instead.
A replacement normally costs 25 pounds. That fee applies whether you are replacing a lost document or applying with a V62 in the situations DVLA sets out.
Can I sell a car without a logbook?
Yes, it is legal to sell a car without a V5C, but it is strongly discouraged. In practice, it makes buyers nervous, slows the sale down, and raises obvious questions about whether the car is properly registered or whether the paperwork has been lost, withheld, or replaced. DVLA’s own guidance to buyers is clear: they should not buy a vehicle that does not have a V5C.
If you are the seller, the safer move is to get the replacement logbook first and then complete the transfer properly. That gives the buyer confidence, reduces the chance of disputes, and makes it much easier to deal with the sale through the correct DVLA process.
How long does a new V5C take to arrive?
The timing depends on how the application or transfer was done. If the vehicle is registered to you online, or you request an eligible replacement online, the new V5C usually arrives within 5 to 7 working days. If the application is made by post, it usually takes about 4 weeks.
If it still has not arrived after that, do not assume it is just delayed. DVLA advises contacting them if it has been 2 weeks since an online replacement request, or 4 weeks since a postal application.
Can you see your V5C online?
Not in the way most people mean. The V5C is still a paper document sent by post, so you cannot log in and view a full digital copy of your logbook online. What you can do online is use DVLA services to replace it, update details, or complete certain vehicle-related tasks.
That distinction matters when you are buying a car. A seller showing you online vehicle details is not the same as showing you the actual V5C, and it does not prove that the paper logbook in their hand is the latest one.
How can I tax my car without a logbook or a new keeper's slip?
It depends on whether you are the current keeper or the new keeper. It depends on whether you are the current keeper or the new keeper. If you are the current keeper and you do not have the V5C, you will need to apply for a replacement logbook. In many cases, you can tax the vehicle at the same time. If you still have a recent tax reminder instead, that can also be used for taxing the vehicle.
If you have just bought the car and do not have the green new keeper slip, the rules are stricter. You cannot tax the vehicle until you apply for a new V5C by post. In some cases, taxing it at a Post Office may also require supporting documents, such as an MOT certificate in Northern Ireland.
How to find a V5C number without the logbook?
If by “V5C number” you mean the 11-digit document reference number, there is no simple public lookup tool that lets you pull it up without the logbook. DVLA’s main online services for changes, such as updating your address, require the 11-digit reference number from the logbook, which means you usually need the document in front of you to use them.
In practical terms, that means your best option is usually to request a replacement V5C rather than trying to recover the number another way. For some tasks, a V11 reminder or other DVLA reference can help, but that is not the same thing as having the actual V5C document reference number.
Summary: Protect Yourself from Logbook Fraud
The V5C is not just admin paperwork. It is the starting point for checking whether the car, the seller, and the vehicle’s record all line up properly. If the logbook is outdated, altered, or does not match the DVLA record, that is often the first sign that something is wrong.
Treat the V5C as the gateway to the car’s wider history, not the final proof that everything is fine. A careful buyer should check the issue date, match the details to the vehicle, and question anything that does not add up.
For real peace of mind, do not rely on the paper document alone. Pair a V5C date check with a full vehicle history check so you can look beyond the logbook and spot risks such as outstanding finance, write-off history, plate changes, and other hidden problems before you commit.