Premiums paid by a policyholder are not deductible from taxable income, although premiums paid via an approved pension fund registered in terms of the Income Tax Act are permitted to be deducted from personal income tax (whether these premiums are nominally being paid by the employer or employee).
The benefits arising from life assurance policies are generally not taxable as income to beneficiaries (again in the case of approved benefits, these fall under retirement or withdrawal taxation rules from SARS). Investment return within the policy will be taxed within the life policy and paid by the life assurer depending on the nature of the policyholder (whether natural person, company-owned, untaxed or a retirement fund).
