How this calculation works
Apply the individual tax table and age rebates to taxable income. Subtract qualifying non-refundable medical tax credits, floored at zero. Tax already paid less this liability gives a positive estimated refund or a negative amount still payable.
A worked example
At R360 000 taxable income under age 65, income tax is R56 172 before medical credits. R70 000 paid implies a R13 828 estimated refund.
Assumptions & limitations
- Enter taxable income after allowable deductions and credits you actually qualify for. Avoid deducting retirement or expenses twice. This simplified resident estimate excludes foreign credits, directives, interest, penalties and SARS debt offsets.
- Only SARS can confirm a refund after assessment and verification. A positive estimate is not a payment promise.

