Make the changes on your V5C registration certificate and return it to DVLA.
Write your new name or new address in section 6 of your V5C (you can’t give joint names or Post Office box addresses).
Sign and date the declaration in section 8.
Send the whole V5C to DVLA.
You’ll get a new V5C free of charge, usually within 4 weeks. Allow at least 6 weeks before contacting DVLA.
If your vehicle needs taxing in the next 4 weeks
Take your V5C to the Post Office - you can tax your vehicle and change your details at the same time.
You’ll also need to take your MOT certificate if you have it. This can’t be a photocopy.