Tax Avoidance vs Tax Evasion in South Africa

Arranging your affairs to pay less tax is legal. Lying to SARS to pay less tax is a crime. Between those two sits a grey band that SARS can unwind even when nobody lied. So there are really three categories, not two: legitimate planning, impermissible avoidance, and evasion. Knowing which one you are in decides whether you owe nothing extra, owe the tax plus a penalty, or face prosecution.

Legitimate planning: using the reliefs the law gives you

The Income Tax Act is full of deliberate incentives, and using them is exactly what they are for. Contributing to a retirement annuity gives you a deduction of up to 27.5% of the greater of remuneration or taxable income, capped at R350,000 for the 2026 year of assessment. A tax-free savings account lets returns grow untaxed, within an annual contribution limit of R36,000 and a lifetime limit of R500,000. A donation to a section 18A approved organisation is deductible up to 10% of your taxable income. None of this is avoidance in the pejorative sense; it is the outcome Parliament intended. There is no penalty because there is nothing wrong.

Impermissible avoidance: technically legal, still reversed

Avoidance becomes a problem when a scheme has little purpose other than a tax benefit. The general anti-avoidance rules, in Part IIA of the Income Tax Act (sections 80A to 80L), let SARS look through an "impermissible avoidance arrangement": one whose sole or main purpose was a tax benefit and which carries at least one abnormal feature, such as steps with no commercial substance or a round-trip of funds. Where the GAAR applies, SARS can tax the arrangement as if it had never happened.

You did not hide anything, but the tax benefit is cancelled and an understatement penalty can follow. Under the section 223 table an impermissible avoidance arrangement carries a penalty of 75% of the shortfall in a standard case, rising to 100% for an obstructive or repeat case. That is on top of repaying the tax and the interest.

Evasion: hiding, lying, or not declaring

Evasion is the criminal end. It means deliberately misstating your position: leaving income off your return, inflating deductions with false invoices, keeping two sets of books, or simply not registering income you know is taxable. This is not a technical argument about interpretation; it is dishonesty. Evasion is an offence under the Tax Administration Act, and beyond the tax and interest it can bring the maximum 150% understatement penalty (200% for an obstructive or repeat case) and criminal prosecution.

What each one costs: a worked comparison

Say SARS finds a shortfall of R100,000 in tax properly due. The understatement penalty is a percentage of that shortfall, set by your behaviour under the section 223 table (standard case):

Behaviour	Penalty rate	Penalty on R100,000
Reasonable care not taken	25%	R25,000
No reasonable grounds for the position	50%	R50,000
Impermissible avoidance arrangement	75%	R75,000
Gross negligence	100%	R100,000
Intentional tax evasion	150%	R150,000

So the same R100,000 shortfall costs R25,000 in penalty if you were careless, R75,000 if it was an impermissible avoidance scheme, and R150,000 if it was deliberate evasion, before interest. On top of the penalty, interest runs on the outstanding tax at the prescribed rate, which is 10.25% per year with effect from 1 March 2026. Legitimate planning, by contrast, sits outside this table entirely: there is no shortfall, so there is no penalty.

There is also relief for honest positions. If your position was a bona fide, reasonable interpretation of the law, and (for a substantial understatement) you made full disclosure and held a qualifying independent tax opinion by the return due date, no understatement penalty applies.

Which side of the line are you on?

The practical test is not how clever the structure is; it is whether you told SARS the truth and whether the arrangement has real commercial substance. If you disclosed everything and used a relief as intended, you are planning. If you disclosed everything but the arrangement exists only to strip out tax, you risk the GAAR. If you concealed or misstated, that is evasion. If you have already crossed the line and want to correct it, the voluntary disclosure programme can reduce the understatement penalty, and the penalties and interest explainer sets out how the amounts stack up. For structuring side income cleanly, see the guide on freelancer and side income tax, and to see how a deduction changes your bill use the income tax calculator.