If you are buying a number plate and you want it transferred onto your vehicle straight away then you will need to provide the following documents: The original of the vehicle's most recent V5C Registration Certificate, sometimes known as the logbook Details of current MOT test certification (if applicable). We do not need your actual MOT certificate. Details of your current road TAX If you are buying a number plate and would like to put it on a vehicle at some later date: No documents are required initially.You will need the documents mentioned above when you do come to transfer your number plate onto your intended vehicle.