Capital gains tax for individuals, plainly

When you sell an asset at a profit in South Africa, the fear is that a flat slab of tax lands on the whole gain. That picture is wrong, and it puts people off good decisions for the wrong reason. Capital gains tax is real, but it is gentler and stranger than the myth, and the mechanics are worth understanding before you sell shares, a second property, or a unit trust. This is a plain, factual companion to our marginal and capital gains tax calculator. It explains how the tax is built, not what you personally should do, which depends on your circumstances and belongs with a registered tax practitioner.

Everything here is South Africa specific, on the SARS figures for the 2027 year of assessment, 1 March 2026 to 28 February 2027.[1]

The first thing to unlearn: CGT is not a separate flat tax

There is no standalone capital gains tax rate in South Africa. Capital gains tax is part of income tax.[1] When you make a capital gain, a portion of it is added to your ordinary taxable income for the year and taxed at your normal marginal rate. That single fact dissolves most of the confusion. You are not paying "the CGT rate". You are paying your own income tax rate, on part of your gain.

Hold on to that. Everything else is just working out which part.

The chain from a sale to a tax bill has four steps, and each one shrinks the amount that gets taxed.

Step one: proceeds minus base cost

Your capital gain is the proceeds from the sale minus the base cost.[2] Proceeds is what you sold it for. Base cost is what you paid, plus the qualifying costs of buying, improving and selling: brokerage, transfer duty, conveyancing, the cost of a renovation on a property. Getting the base cost right is the single biggest thing in your control, because every rand of legitimate cost you can add reduces the gain, and people routinely understate it by forgetting the fees and improvements.

Step two: the exclusions

Not all of the gain is exposed. Two exclusions matter for individuals.

The annual exclusion is R50,000 for the 2027 tax year, up from R40,000, the first increase since 2017.[1][3] The first R50,000 of your total net capital gain in a year is simply ignored. It applies once per year across all your disposals, not per asset.

The primary residence exclusion is far larger. The first R3,000,000 of the gain on the home you actually live in is excluded entirely, up from R2,000,000.[1][3] Most people who sell their family home pay no capital gains tax at all. This exclusion is only for a primary residence; a second property or a buy-to-let gets no residence exclusion, only the annual R50,000.

Step three: the inclusion rate

Here is the step that surprises people. After the exclusions, only 40% of what remains is actually taxed. That is the inclusion rate for individuals, and it is unchanged for 2027.[1][4] The other 60% of your net gain is not taxed at all. The included 40% is added to your taxable income for the year.

Step four: your marginal rate

That included amount is taxed at your marginal rate, the rate on your next rand of income. Because only 40% of the net gain is included, the most an individual can ever pay is 40% of the gain taxed at the 45% top marginal rate, which is an effective ceiling of 18%.[1][4] Almost everyone pays less, because most people are not in the top bracket and the exclusions have already trimmed the gain.

The four steps on a real number

Take the case we use across this cluster. Naledi has a taxable income of R1,100,000 and sells a share portfolio: proceeds R800,000, base cost R500,000.[5]

Her gain is R800,000 minus R500,000, which is R300,000. Subtract the R50,000 annual exclusion and R250,000 remains. Include 40% of that, which is R100,000, added to her income. At her marginal rate of 41%, the tax on that R100,000 is about R41,000.[5]

So on a R300,000 gain, the tax is about R41,000. That is an effective rate of 13.7% on the whole gain, not 41% and not 18%.[5] The exclusion and the 40% inclusion did most of the work, and her rate is 41%, not the 45% that would give the 18% ceiling. Had she sold her home instead of shares, the first R3,000,000 of gain would have been excluded outright, and the tax would very likely have been zero.

Asset by asset, briefly

The same four steps apply everywhere, with small wrinkles. On listed shares and exchange-traded funds, shares held for at least three years are automatically treated as capital under section 9C, which puts them squarely in this regime rather than being taxed as trading income. On unit trusts, selling your units is a disposal like any other, while the distributions you receive along the way are taxed separately as income or dividends. On immovable property, the residence exclusion applies only to your primary home, and transfer and improvement costs form part of the base cost. Inside a tax-free savings account, capital gains are disregarded entirely, which is a large part of what makes the wrapper valuable.

The tax that arrives without a sale

One factual aside, because it catches people out and it corrects a pointer we left open in an earlier article on unrealised gains. Capital gains tax can be triggered without you selling anything, through a deemed disposal. There are two of these for individuals, and the section numbers are worth getting right. Section 9H applies when you cease to be a South African tax resident, the so-called exit charge: you are treated as having sold your worldwide assets, with some exclusions, at market value the day before you leave. Section 9HA applies on death: you are treated as having disposed of your assets at market value on the day you die, which can create a capital gain in your final tax return. Death is the one that surprises families, because it is a capital gains tax event and a separate estate duty event on the same estate. Neither of these is emigration or estate advice; they are simply the two moments the tax can arrive without a sale.

Where this leaves you

Capital gains tax for individuals is not a flat tax on your profit. It is your own income tax rate, applied to 40% of your gain, after an annual exclusion and, for a home, a very large residence exclusion. The effect is that the real bite is usually well under the 18% ceiling, and often zero on a primary residence. If you want the exact figure on a specific disposal, with the base cost, exclusions and your marginal rate all in place, our calculator does it for the tax year you choose, and every figure here is refreshed each year after the February Budget.