Understanding Capital Gains Tax Calculation for Individuals in South Africa
- Connect Cape Town

- Dec 14, 2025
- 3 min read
Updated: Dec 26, 2025
Capital gains tax (CGT) can feel complicated, especially when you want to understand how it affects your personal finances. In South Africa, CGT applies when you sell or dispose of certain assets and make a profit. Knowing how this tax is calculated helps you plan better and avoid surprises when tax season arrives. This post breaks down the key points of CGT for individuals in South Africa, with clear examples and practical tips.

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What is Capital Gains Tax?
Capital gains tax is the tax you pay on the profit made from selling an asset. The asset could be property, shares, or other investments. The gain is the difference between what you bought the asset for and what you sold it for. CGT is part of your income tax but calculated separately.
In South Africa, CGT was introduced in 2001 and applies to individuals, companies, and trusts. For individuals, only a portion of the capital gain is included in taxable income, which means you don’t pay tax on the entire gain.
Which Assets Are Subject to CGT?
Not all assets are subject to CGT. Common assets that attract CGT include:
Property (excluding your primary residence up to a certain exclusion)
Shares and investments
Business assets
Personal items worth more than R30,000 (like art or jewelry)
Your primary residence has a special exclusion, which means you don’t pay CGT on the first R2 million of the gain when you sell your home. This makes a big difference for most homeowners.
How is Capital Gains Tax Calculated?
Calculating CGT involves several steps. Here’s a simplified process:
Step 1: Determine the Capital Gain or Loss
Calculate the difference between the selling price and the base cost of the asset.
Selling price: The amount you sold the asset for.
Base cost: What you paid for the asset, including purchase price, improvements, and certain costs like transfer fees.
If the selling price is higher than the base cost, you have a capital gain. If lower, you have a capital loss, which can be used to offset future capital gains.
Step 2: Apply the Annual Exclusion
Individuals get an annual exclusion of R40,000 on capital gains. This means the first R40,000 of your total capital gains in a tax year is not taxed. For the year of death, this exclusion increases to R300,000.
Step 3: Calculate the Taxable Capital Gain
After subtracting the annual exclusion, only 40% of the remaining capital gain is included in your taxable income. This is called the inclusion rate for individuals.
For example, if your capital gain after the exclusion is R100,000, only R40,000 (40% of R100,000) will be added to your taxable income.
Step 4: Apply Your Income Tax Rate
The taxable capital gain is added to your other income and taxed at your marginal income tax rate. South Africa has a progressive tax system, so the rate depends on your total income.
Example of CGT Calculation
Let’s say you sold shares for R500,000. You originally bought them for R300,000. Here’s how to calculate your CGT:
Capital gain = R500,000 - R300,000 = R200,000
Subtract annual exclusion = R200,000 - R40,000 = R160,000
Taxable capital gain = 40% of R160,000 = R64,000
If your marginal tax rate is 30%, tax payable = 30% of R64,000 = R19,200
This means you owe R19,200 in capital gains tax on the sale of your shares.

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Important Considerations for Individuals
Primary residence exclusion: The first R2 million of capital gain on your main home is exempt.
Losses: Capital losses can be carried forward indefinitely to offset future gains.
Inheritance: When you inherit an asset, the base cost is usually the market value at the date of death.
Foreign assets: Capital gains on foreign assets are also subject to CGT if you are a South African tax resident.
Tips to Manage Capital Gains Tax
Keep detailed records of purchase prices, improvements, and selling costs.
Use the primary residence exclusion wisely by understanding what qualifies.
Consider timing asset sales to spread gains over multiple tax years and use annual exclusions.
Consult a tax professional for complex situations like trusts or business assets.

Understanding how capital gains tax is calculated helps you make smarter financial decisions. By knowing the steps and rules, you can plan asset sales to reduce your tax burden and keep more of your profits. If you’re unsure about your specific situation, seek advice from a tax expert to ensure compliance and optimize your tax outcomes.
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