The V5C — also called the vehicle registration certificate or logbook — is one of the most important documents associated with your vehicle. Understanding it fully helps you manage road tax and other vehicle administration.

What the V5C Contains

The V5C records all key vehicle details: the vehicle identification number (VIN), registration mark, make and model, first registration date, CO2 emissions figure, fuel type, engine size, year of manufacture, colour, and the registered keeper's name and address. These details determine your VED rate. Keep the V5C safe — it is your proof of ownership and your key to taxing and selling the vehicle.

Section 1: Your Details

Section 1 of the V5C shows the registered keeper's name and address. This is the address DVLA uses for all correspondence including tax reminders and refunds. If this address is wrong, update it immediately at GOV.UK. The address on the V5C must match your driving licence address if you are the registered keeper.

Section 2: The Green Slip

Section 2 — the green slip — is the part you give to the buyer when selling your vehicle. It is their proof that you have transferred the vehicle to them. If you sell and do not have the green slip, you cannot transfer ownership. The buyer uses section 2 to tax the vehicle in their name. Keep a copy of the green slip before giving it to the buyer.

Section 4: Changes and Corrections

Section 4 of the V5C is used to notify DVLA of changes — such as a change of address, alteration to the vehicle, or correction of details on the V5C. If your CO2 figure is wrong, use section 4 to notify DVLA with supporting evidence such as a Certificate of Conformity.

Losing Your V5C

If you lose your V5C, you can apply for a replacement V5C online via GOV.UK. There is a fee for the replacement. You cannot tax the vehicle without the V5C reference number — if you have lost it and need to tax urgently, contact DVLA's phone service. Replacement V5Cs are posted within 5 working days.

Buying a Car Without a V5C

Never buy a vehicle without the V5C — or without the seller committing to provide it. Without the V5C, you cannot tax the vehicle, prove ownership, or notify DVLA. If a seller says they have lost the V5C, they must apply for a replacement before the sale can proceed legitimately. Walk away from any deal where the seller cannot or will not provide the V5C.