It depends on km/hr over the speed limit. Basically, it is 0, 3, 4 and 6 demerit points.
0 – 15 km/h - 0 demerit points;
16 – 29 km/h - 3 demerit points;
30 – 49 km/h - 4 demerit points;
50+ km/h - 6 demerit points.