If you acquire 6 or more penalty points within 2 years of passing your first driving test you will automatically have your licence revoked. To get it back you must apply and pay for a new provisional licence, drive as a learner (supervision, 'L' plates etc.) and pass both theory (including hazard perception) and practical tests again.
You can acquire penalty points on your provisional licence before you pass your test but if you then receive more points after passing your test, taking the total to 6 or more, your licence will be revoked. Having your licence revoked when you have acquired 6 or more penalty points does not 'wipe the slate clean', any live penalty points will still be shown on your licence when you get it back.
Revocation only applies where the offence that causes the points to number 6 or more is committed during the probationary period (2 years from passing your test). This means that if you obtain 6 points or more points before you have taken your test you can still pass your test and obtain your licence, but if you obtain any more points within 2 years of passing your test, your licence will be revoked.
Note: If the points on your licence number 12 or more within a three year period, you will be liable to be disqualified under the 'totting up' provisions – usually for at least 6 months.
Note: The penalty for using a mobile phone whilst driving is 6 penalty points and a £200 fine. For newly qualified drivers this could result in your licence being revoked for a single offence.