Important:
This answer is based on tax law for the tax year ending 28 February 2020.
Answer:
In terms of section 10(1)(zJ) of the Income Tax Act any amount received by or accrued to or in favour of a registered micro business as defined in the Sixth Schedule, from the carrying on of a business in the Republic, other than an amount received by or accrued to a natural person registered as a micro business that constitutes—
investment income as defined in paragraph 1 of the Sixth Schedule; or
remuneration as defined in the Fourth Schedule.
If the person is a natural person that is a registered micro business, he or she will only be a provisional taxpayer if the investment income or other taxable income exceeds the tax threshold. We accept that the individual doesn’t carry on another business.
If the micro business is a company it would have to file the provisional tax returns.