Capital gains tax exemption

I have to calculate capital gain on a rental property ( not a primary residence). It seems we can deduct a R30 000 natural person exemption. Does SARS eFiling automatically take off that R30 000 or am I supposed to put it in somewhere?

SARS will calculate that for you automatically when you submit the details in your Tax Return.
Please use our Capital Gains Tax Calculator to assist with your workings.