Before you can learn to drive you must have a provisional driving licence.
You can apply for your provisional driving licence up to 2 months before your 17th birthday but you must not drive on the road until your licence has arrived and not until the day of your 17th birthday.
To get your provisional licence you must complete a driving licence application and photo card application form D1 which you can get from your local post office. The application fee for your licence is current £50.
If you do not wish to send your identity documents through the post, a premium service for checking photocard applications is available at selected post office branches. Your application can be checked for accuracy and completeness and your identity documents returned to you immediately. The premium service fee is £4 and is in addition to the standard driving licence fee for applications sent direct to DVLA.
More information about licensing requirements can be found in the Driving and Vehicle Licensing Agency (DVLA) leaflet D100 “What you need to know about driving licences” which is available at Post Offices.
Other information can be found at the DVLA website.