It is the time to renew your Vehicle tax disc over the coming months, if you live in the U.K. You have to renew your tax disc online at www.gov.uk/vehicle-tax, through the phone or through the post, after you received the reminder from DVLA (Driver and Vehicle Licensing Agency).
Tax your car, motorcycle or other vehicle using a reference number from:
a recent reminder (V11) or ‘last chance’ warning letter from DVLA
your vehicle log book (V5C) – it must be in your name
the green ‘new keeper’s details’ slip (V5C/2) from a log book if you’ve just bought it
How to tax your vehicle online?
Visit the above website www.gov.uk/vehicle-tax, click on the “Start Now!” button, read and confirm the statements on the next page, then you will be asked to enter the 16 digit reference number (if you receive a V11 renewal from DVLA) or the 11 digit reference number from your Registration Document/Certificate (if you don’t have a reminder). Click the “Submit” button and follow the instructions.
You can also declare SORN, make a vehicle detail enquiry and do more other related things online at this website.