If you want to transfer car tax you will need to understand the laws surrounding vehicle rules. It is an offence to not display a valid tax disc in your vehicle’s wind screen. If you have recently sold a vehicle and wish to alter the car tax from the previous vehicle to your new vehicle please visit www.dvla.gov.uk for further advice.
1 - If you have sold the vehicle
It is not possible to actually transfer a tax disc from one vehicle to another. Each road fund license (tax disc) is unique to the vehicle to which it was assigned and it will clearly show the vehicle registration number on the disc.
If you have sold a vehicle and you wish to retain the car tax disc then you must apply for a refund, for that particular disc, under the DVLA refund conditions. Once you have received your refund you can then apply for a new tax disc. However, be aware that it is an offence to drive an unlicensed vehicle on a public highway.
Therefore, if you have sold a vehicle and purchased another one you will be required to make sure that it has an MOT certificate (if it is three years old or more) and a valid insurance certificate before you purchased a road tax disc. If you have kept the road tax disc from your old vehicle you must purchase a new tax disc for your new vehicle and claim a refund from the DVLA for the previous tax disc.
2 – If you have exported the Vehicle or Scrapped the Vehicle
If you scrap or export your vehicle you are legally obligated to advise the DVLA of any changes. You may be entitled to a full or partial refund of your road fund license (car tax disc) if you have more than 30 days remaining on it. However, unless you specify when you release the vehicle that you wish to retain the tax disc then you must sell it with the vehicle.
If you have made arrangements to retain it then you may NOT transfer the same disc to another vehicle. You must first purchase a license for the new vehicle and then apply for a refund from the DVLA.
3 – If you have transferred the Vehicle
If you have transferred your vehicle or are given it as a gift you are legally obliged to tell the DVLA of the transfer. You could be entitled to a full or partial refund of your road fund license (car tax disc) if you have more than 30 days remaining on it, but you cannot transfer it to the replacement vehicle, if you purchased another after transferring the first. You must specify when you transfer the vehicle that you wish to retain the tax disc otherwise you must transfer it with the vehicle.
If you have made arrangements to retain it then you may not transfer the same disc to another vehicle. You must first purchase a license for the new vehicle and then apply for a refund from the DVLA. Notify the DVLA of any address changes.
Visit http://www.direct.gov.uk/en/Motoring/OwningAVehicle/HowToTaxYourVehicle/DG_10012526 for further help.