Your car licence renewal fees vary from province to province, and are based on the vehicles tare weight and type.
You get a 21-day grace period in which to renew an expired motor vehicle licence. The grace period is calculated from the expiry date of the current licence disc, and a late renewal penalty applies after this time. the penalty fee is calculated at 1/10th of the annual licencing fee per month that the licence remains lapsed. Late renewal penalties and arrears can amount to anything from R90 to R1000 and even more, depending on how many months you’ve been driving with an expired licence disc.