South African tax education
Income Tax Calculator
Income Tax Calculator explained in plain English, with practical context, records to check and reminders to verify current SARS requirements before acting.
Last updated: 17 May 2026
How to use this calculator guide
Income Tax Calculator explains what a tax calculator can estimate and what it cannot replace. A calculator is useful for planning, but SARS assessments depend on the full return, current tables and supporting information.
Inputs that matter
- Tax year, age and residency position.
- Employment income, allowances, benefits and PAYE already withheld.
- Retirement contributions, medical credits and other amounts that may affect taxable income or tax payable.
Interpreting the result
Treat the result as an estimate. Differences can arise from fringe benefits, bonuses, travel allowances, rebates, credits, provisional tax, understatements or incomplete certificates.
Before you act
- Check the latest SARS guidance, forms and eFiling messages for the relevant tax year.
- Keep source documents, calculations and correspondence in one place in case SARS asks for proof.
- Use a registered tax practitioner for complex, high-value or disputed matters.
Source and disclaimer
This site provides general educational information for South African taxpayers. It is not tax, legal, accounting, or financial advice. Tax rules and SARS processes can change, so verify current requirements with SARS or a qualified professional before acting.