If you accumulate 12 or more demerit points in any three year period, you will be disqualified from holding or obtaining a driver’s licence or permit. Each three year period is calculated based on the dates the offences were committed.
If you accumulate:
12 to 15 points you lose your right to drive for three months
16 to 20 points you lose your right to drive for four months
more than 20 points you lose your right to drive for five months.
Demerit points are incurred whether the offence is committed in South Australia or interstate.