Foreign Income When You Live in South Africa

Resident → worldwide

Ordinarily resident or physical-presence test. Then salary, gigs, prizes, and gains from anywhere are in the South African net unless a specific exemption or treaty article applies.

10(1)(o)(ii)

The foreign-employment exemption is a days-and-duties test. Remote work for a London company from Randburg almost never qualifies. Keep a travel diary if you actually left.

Foreign tax already paid

Section 6quat may give a credit. You still declare the income. Keep the foreign assessment.

Questions

I am paid in USD to a South African bank. Is it foreign income?

The source and where you rendered services matter more than the currency. Living and working here usually means it is taxable here.