Look at your payslip. Right there, before the money even reaches your account, a portion has already been deducted. That’s income tax doing exactly what it’s supposed to do. But what is it, why does it exist, and how does it actually work in South Africa?
You have rights, and those rights cost money
As a South African, you have the right to use public roads, send your children to government schools, access public hospitals, and call on emergency services when things go wrong. None of that is free. Someone has to foot the bill.
That someone is you, me, and every other taxpayer in the country.
Income tax is the mechanism government uses to collect contributions from individuals and businesses to keep the country running. Think of it as your share of the collective bill, not as money being taken from you. Different countries offer different levels of service, and the tax system is what funds those services. South Africa is no different.
So what exactly is income tax?
Income tax is a tax on what you earn. In South Africa, it is governed by the Income Tax Act 58 of 1962 and administered by SARS, the South African Revenue Service.
The key concept here is gross income, defined in section 1 of the ITA as the total amount, in cash or otherwise, received by or accrued to a resident during a year of assessment. From gross income, certain exempt amounts are excluded, and allowable deductions such as retirement fund contributions are taken into account to arrive at your taxable income. It is on this final taxable income figure that your tax is calculated.
Taxable income is not just your basic salary. It can include wages, bonuses, freelance income, rental income, and certain benefits your employer provides.
One thing worth being clear about: tax is governed by law, not by opinion or circumstance. It does not matter whether you disagree with how government spends the money, or whether you simply forgot to submit. The obligation exists regardless. SARS has the legal authority to collect, and ignoring that will not make the problem go away.
“I don’t earn enough to pay tax” – a very common myth
I hear this one a lot. Many South Africans assume that if they don’t earn much, tax simply doesn’t apply to them. The reality is a little more nuanced.
For the 2025/2026 tax year, the tax threshold for persons under 65 is R95,750 per year. Below that, you pay nothing. But here’s what catches people off guard: you may still need to submit a tax return even if you owe nothing.
Submitting and paying are two very different things. Don’t confuse them.
It is also worth knowing that you can only be a tax resident in one country at a time. If you have emigrated or spend significant time outside South Africa, your tax residency status matters enormously. Getting it wrong can be very costly.
SARS knows more than you think
This one surprises a lot of people. By the time you sit down to complete your tax return, SARS often already has most of your information.
Your employer submits your salary details. Your bank reports interest earned. Your medical aid reports your contributions. Your retirement fund reports your deductions. All of this flows to SARS through third-party data submissions, and they use it to cross-check exactly what you declare.
This is precisely why SARS introduced auto-assessments, where they pre-populate your return with information they already hold. For many salaried employees, SARS essentially does the heavy lifting for you. Don’t assume SARS doesn’t know. They usually do.
A real-world example
Let’s put some numbers to this. Say Thabo earns R20,000 per month, which is R240,000 per year. Here’s roughly how his income tax plays out for the 2025/2026 tax year:
- Most of his income falls in the 18% tax bracket (up to R237,100), with a small portion nudging into the 26% bracket above that
- His calculated tax before rebates comes to approximately R33,200
- He then receives the primary rebate of R17,235, which every taxpayer under 65 receives automatically in terms of section 6 of the ITA
- That brings his actual tax liability to roughly R15,965 for the year, or about R1,330 per month
Thabo probably never thinks about this, because his employer deducts it automatically every month through PAYE (Pay As You Earn) before his salary ever reaches his account. PAYE is governed by the Fourth Schedule to the ITA, and it places the obligation squarely on the employer to withhold and pay over the correct amount to SARS each month. That’s the system working exactly as it’s designed to.
The bottom line
Income tax isn’t something to fear, but it is something to understand. Knowing the basics puts you in control of your financial life and helps you avoid nasty surprises down the line.
At K-Fin Financial Services, we assist South Africans in understanding their tax obligations and making informed financial decisions. If you are unsure about your tax status, whether you need to submit a return, or what your obligations look like, get in touch.
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