In order to use a vehicle on the road, you need to display a valid vehicle excise licence tax disc. These are purchased from the Post Office/Licensing Centres and now online via the DVLA website. Road fund licences last for either 6 or 12 months. The tax disc must be clearly displayed, normally to the left lower corner of the windscreen on cars or to the front of the vehicle on most motorcycles.
Some vehicles are exempt (see below) whereas others still need to display a tax disc, although this is provided free of charge.
To obtain a tax disc, you will need valid insurance, MOT certificate (if the vehicle is more than 3 years old) and proof of ownership; normally the log book or the tax disc reminder sent by the DVLA. Without these, the Post Office will no longer issue a tax disc.