V5C Logbook Explained: What It Is & Why It Matters

What Is a V5C Logbook?

The V5C registration certificate, commonly referred to as the logbook, is a document issued by the DVLA (Driver and Vehicle Licensing Agency) that records the registered keeper of a vehicle. Every vehicle registered in the UK has a V5C associated with it, and the document plays a central role in buying, selling, and taxing vehicles.

One of the most important things to understand is that the V5C is not proof of ownership. This is a widespread misconception that catches many buyers off guard. The V5C identifies the registered keeper — the person responsible for taxing and registering the vehicle — but that person may not be the legal owner. For example, if a car is purchased on finance, the finance company is the legal owner, even though the person driving the car is named on the V5C as the registered keeper.

The V5C is printed on multi-coloured paper with built-in security features, including watermarks, to prevent forgery. It is an essential document for any vehicle transaction, and you should always ask to see the original when buying a used car.

What Information Is on the V5C?

The V5C contains a comprehensive set of details about the vehicle and its registered keeper. Here is what you will find on the document:

• Registration number — The vehicle's number plate. Check that this matches the plates physically on the car.
• VIN (Vehicle Identification Number) — A unique 17-character code stamped into the vehicle's chassis. This is the most reliable identifier for any vehicle.
• Make and model — The manufacturer and specific model of the vehicle, such as "Ford Focus" or "Volkswagen Golf".
• Colour — The recorded colour of the vehicle. If the car has been resprayed, this should have been updated with the DVLA.
• Engine size and fuel type — The engine capacity in cubic centimetres and whether the vehicle runs on petrol, diesel, electric, or another fuel type.
• Date of first registration — When the vehicle was first registered in the UK, which determines its age.
• Registered keeper's name and address — The current keeper's details as recorded with the DVLA.
• Previous keeper details — The number of previous keepers is recorded, along with the date of each change of keeper.
• V5C document reference number — An 11-digit number unique to this specific version of the document, used for online services and verification.

Registered Keeper vs Legal Owner

This is one of the most critical distinctions to understand when buying or selling a vehicle. The V5C names the registered keeper, not the legal owner, and these are often two different people or entities.

The registered keeper is the person responsible for the day-to-day use of the vehicle, including ensuring it is taxed, insured, and has a valid MOT. The legal owner, on the other hand, is the person or organisation that holds the legal title to the vehicle.

Here are common situations where the keeper and owner differ:

• Cars on hire purchase or PCP finance — The finance company is the legal owner until the final payment is made. The person driving the car is the registered keeper.
• Company cars — The employee may be the registered keeper, but the company owns the vehicle.
• Leased vehicles — The leasing company owns the vehicle; the lessee is the registered keeper.
• Cars bought as gifts — The person who bought the car may still be the legal owner, even though the recipient is the registered keeper.

When buying a used car, always establish who the legal owner is, not just who is named on the V5C. If there is outstanding finance on the vehicle, the finance company may be entitled to repossess it. Use a car finance check to verify the car is free from finance before buying.

How to Verify V5C Details

Before committing to buying a vehicle, you should cross-reference the details on the V5C against independently sourced data. This helps confirm that the document is genuine and that the vehicle is what the seller claims it is.

Start by running a free vehicle check on CheckMyReg. Enter the registration number and compare the results against the V5C. The following details should all match:

• Registration number
• Make and model
• Colour
• Engine size and fuel type
• Date of first registration

Next, verify the VIN. The VIN shown on the V5C should match the VIN physically on the vehicle. You can find the VIN in two places: visible through the windscreen at the base on the passenger side, and on a plate in the driver's door frame. Check both locations and compare them to the V5C.

What to Check on the V5C When Buying a Car

When you view a used car, always ask to see the original V5C document. A printed copy, photocopy, or digital image is not sufficient. Here is what to check:

• Watermarks and security features — Genuine V5Cs have a watermark that is visible when the document is held up to light. The paper also has a specific colour pattern that is difficult to reproduce.
• Seller's address — The address on the V5C should match the location where you are viewing the car. If the seller says they have recently moved, ask for proof of their previous address.
• Document reference number — The 11-digit reference number should not have been reported as stolen. You can verify this through DVLA services.
• Section 6 (new keeper details) — When a car is sold, the seller should fill in section 6 of the V5C with the new keeper's details. This section should be blank if you are the buyer, ready for you to complete at the point of sale.
• Number of previous keepers — A high number of keepers in a short period can be a red flag, suggesting the car may have problems.

How to Update V5C Details

There are several situations where you need to update the V5C with the DVLA. Here is how to handle each one:

Change of Keeper

When you buy a car, the seller should complete section 6 of the V5C with your details and send the completed V5C to the DVLA. You should receive your own V5C in your name within 2 to 4 weeks. In the meantime, keep the green "new keeper" slip (section 10) as your proof of purchase and entitlement.

Change of Address

If you move house, you must update the address on your V5C. The quickest and easiest way is to do this online at GOV.UK, and it is completely free. You can also update by post by filling in section 3 of the V5C and sending it to the DVLA.

Lost or Damaged V5C

If your V5C is lost, stolen, or damaged beyond use, you can apply for a replacement through the DVLA. The current fee is £25. You can apply online at GOV.UK for a faster turnaround, or by post using a V62 application form available from Post Offices. The replacement typically arrives within 2 to 4 weeks.