Is Taxable Income for provisional Tax payers calculated after rebates, interest exemption and medical aid credits are subtracted or before any or all of these are subtracted ?
When provisional tax is calculated, it is the same calculation as for normal annual tax. Therefore you will do the whole tax calculation as you would normally, to calculate taxable income (after interest exemption), then you will calculate your tax payable per tax rate. Lastly you will deduct your rebates and medical credits. This will be your provisional tax due.