CGT and new retirement fund laws

Non of the tax calculators include Capital Gains tax
What is the impact of a Capital Gains Tax on the allowable RA deduction?

The RA deduction is calculated based on 27,5% of taxable income (limited to actual contributions made and capped at R350,000 per year). Therefore, the taxable portion of the capital gain (2017: 40% for individuals) is included for the purposes of calculating the RA deduction.