Capital gains tax on property sales in South Africa

You signed the offer, agreed to the sale price, and already calculated what you'd walk away with. Then someone mentioned capital gains tax. The conveyancer's letter confirmed it. Suddenly the figure you'd settled on is smaller than you'd planned for, and you're not quite sure how much smaller, or why, or whether there's anything you can do about it. The amount owed depends on several factors most sellers haven't thought about until the letter arrives.

What is capital gains tax?

Capital gains tax, often shortened to CGT, is a tax on the profit you make when you sell an asset for more than you paid for it. In South Africa, it forms part of your income tax. It's not a separate tax collected by a different authority, but rather an additional amount included in your annual tax assessment by SARS (the South African Revenue Service). When you sell a property and the proceeds exceed what the property originally cost you, that profit is called a capital gain. A portion of that gain is added to your taxable income for the year, and you pay tax on it at your normal income tax rate. The portion added, called the inclusion rate, differs depending on whether you are an individual or a company.

Key takeaways

• Capital gains tax applies when you sell a property for more than its base cost, which is broadly what you paid for it plus qualifying costs.
• If the property is your primary residence and the gain is below R3,000,000, you may qualify for the primary residence exclusion.
• Natural persons receive an annual exclusion of R50,000 that reduces the taxable gain each year.
• The inclusion rate for natural persons is 40%, meaning only 40% of the net gain is added to your taxable income.
• Companies and trusts face higher inclusion rates and don't qualify for the primary residence exclusion.
• If you are a non-resident seller and the price is above R2 million, the buyer must withhold part of the proceeds, usually through the conveyancer, as an advance payment towards your CGT.
• Budgeting for CGT before you list your property avoids the surprise most sellers experience only after the sale is agreed.

How the gain is calculated

The starting point is your base cost. This isn't simply the price you paid for the property. It includes the original purchase price plus any costs you incurred in acquiring it: transfer duty, transfer attorney fees, and similar expenses. Bond registration costs don't count, because SARS treats them as the cost of borrowing, not of acquiring the property.

The base cost also includes the cost of capital improvements made during ownership, such as additions, structural renovations, and significant upgrades that increased the property's value. Routine maintenance and repairs don't qualify. A fresh coat of paint doesn't move the base cost. A new garage, a boundary wall, or a substantial renovation likely does.

Once you have the base cost, you subtract it from the proceeds of the sale. The proceeds are the price agreed in the sale, less the selling costs you paid directly: agent's commission, for example. What remains after subtracting the base cost from the net proceeds is your capital gain. If the result is zero or negative, there's no CGT liability on that transaction.

Keep every receipt from acquisition costs and capital improvements. A folder going back to the original transfer is worth more than most sellers expect.

The primary residence exclusion

If the property you are selling is your primary residence, the home where you ordinarily live, South African tax law provides a significant exclusion. The first R3,000,000 of a capital gain on a primary residence is excluded from tax. A seller with a gain below that threshold owes no CGT on the transaction at all.

The exclusion isn't automatic. The property must genuinely be your primary residence. If you own more than one property, only one can qualify. If you lived in the property for part of the ownership period and rented it out for another part, the exclusion applies proportionally. SARS looks at the facts: where you were registered for municipal purposes, where your children attended school, where your post was delivered. The exclusion belongs to the residence, not to the investment intention.

This is the exclusion most South African homeowners rely on without fully understanding what it requires. Knowing the conditions before you sell protects the exclusion you are entitled to.

The annual exclusion and inclusion rate

Every natural person in South Africa receives an annual exclusion of R50,000 on capital gains. This amount is deducted from your net capital gain each year before the inclusion rate is applied. It applies across all capital gains in that tax year, not per asset. If you have other capital gains or losses in the same year, such as shares sold, another property, or any other qualifying asset, they are all combined before the annual exclusion reduces the total.

After the annual exclusion, 40% of the remaining gain is added to your taxable income. This is the inclusion rate for individuals. That 40% doesn't mean you pay 40% in tax. It means 40% of the gain is treated as income and taxed at whatever marginal rate applies to your total income. For someone in the highest income tax bracket, the effective rate on the gain works out to roughly 18%. For someone in a lower bracket, it will be less.

Illustrative CGT calculation for a natural person

In a case where the gain exceeds the primary residence exclusion, say a property where the gain is R3,400,000, the remaining R400,000 would be reduced by the annual exclusion of R50,000, leaving R350,000. Forty percent of that, R140,000, would be added to taxable income. The actual tax owed depends on the seller's marginal rate.

These are illustrative figures. Your own calculation depends on your base cost, your income for the year, and whether the property qualifies as your primary residence.

Companies, trusts, and non-resident sellers

The primary residence exclusion and the R50,000 annual exclusion apply to natural persons, meaning individuals. Companies and trusts face different rules. A company has an inclusion rate of 80%, meaning 80% of the capital gain is added to taxable income. A trust not distributing the gain to a beneficiary in the same tax year also uses an 80% inclusion rate. Both face higher effective CGT rates than individual sellers.

Non-resident sellers face an additional administrative step. When a non-resident sells South African property, the buyer is required to withhold a portion of the proceeds (usually handled by the conveyancer) and pay it to SARS if the price is above R2 million on the non-resident's behalf. The withholding percentages differ depending on whether the seller is an individual, a company, or a trust. The withheld amount isn't the final CGT liability. It is a payment on account, and the non-resident seller must still file a South African tax return. SARS will either request additional payment or issue a refund depending on the actual liability.

Resident sellers receive no such withholding. They declare the gain in their annual tax return and pay accordingly. The conveyancer doesn't deduct CGT from the proceeds for a resident individual; the liability is settled through the normal tax process.

What the conveyancer's role is

The conveyancer handles the legal transfer of the property. Capital gains tax isn't part of that mandate (the scope of work a conveyancer is appointed to carry out). The conveyancer doesn't calculate your CGT, advise you on your liability, or submit your tax return. What the conveyancer does do is handle the withholding on the buyer's behalf when the seller is a non-resident, as the law requires.

For resident sellers, the conveyancer may flag CGT could apply, particularly if the property isn't a primary residence. The obligation to calculate and declare the gain sits with you and your tax adviser or accountant. This is the part of the transfer process falling outside the conveyancer's scope, and sometimes outside the agent's scope too. Both will complete the transfer. Neither will file the tax return.

Understanding the conveyancing process helps sellers see where each professional's role ends. The CGT calculation belongs to the seller, to be handled before the tax year closes.

When CGT becomes a real cost

Most South African homeowners selling their primary residence will find the R3,000,000 exclusion covers their gain entirely. The property market across Gauteng, KwaZulu-Natal, and the Western Cape has seen significant price growth over long holding periods, but a gain large enough to exceed three million rand on a primary home is less common than many sellers assume.

Where CGT becomes a real, budgeted cost is on second properties: a rental property held for a decade, a holiday home on the Whale Coast, an investment flat in Glenwood. These properties don't qualify for the primary residence exclusion. The full gain, reduced only by the annual exclusion, feeds through to taxable income at a 40% inclusion rate. On a rental property bought for R800,000 and sold for R1,700,000 after a decade of ownership, the numbers are material. A seller who hasn't thought about this before listing may find the net proceeds land short of what the purchase price alone suggested.

The transfer costs article covers transfer costs in detail, and CGT sits alongside those figures as a pre-transfer obligation worth understanding before the Offer to Purchase is signed.

Closing Reflection

You started the selling process with a price in mind. That price was based on the offer you accepted, the bond you'd pay off, and the balance you expected to receive. Capital gains tax arrives later in the sequence, in the form of a tax return, and it can be easy to underestimate until you run the numbers. For most sellers of a primary residence it won't change the outcome significantly. For sellers of a second property, it can reshape the figures. The time to understand which category applies to you is before the sale agreement is signed, not after the transfer has registered.

You shouldn't have to discover a tax liability after the deal is already done. With Golden Homes you won't.

Contact Golden Homes to speak with an agent who can connect you with the right professionals before you list your property.

CGT raises specific questions once sellers start running their own numbers. These are the ones that come up most.

Frequently asked questions

Does every property sale trigger capital gains tax?

Not every sale results in a CGT liability. If you sell your primary residence and the capital gain, the difference between what you paid and what you received after adjusting for qualifying costs, is below R3,000,000, the primary residence exclusion eliminates the tax entirely. If the gain is zero because the property sold for less than the base cost, there's no liability either. A capital loss can be carried forward to offset future gains, but it can't be used to reduce ordinary income. Where CGT does apply, it isn't levied on the full sale price. Only the gain, after exclusions and the annual exclusion of R50,000, feeds into the calculation. Many sellers who have owned their primary residence for many years and haven't made substantial capital improvements will find their gain falls within the exclusion, leaving no capital gains tax to pay. If you are uncertain, an accountant can run the numbers before you sign the sale agreement, which is far less stressful than discovering a liability after transfer registers.

How does the primary residence exclusion work if I rented out part of my home?

If you rented out a portion of your primary residence while living in the rest of it, SARS requires you to apportion the exclusion. The portion of the gain attributable to the rented section isn't covered by the primary residence exclusion. The apportionment is typically calculated based on the floor area rented as a percentage of the total floor area of the property. If 30% of the home was rented, 30% of the capital gain falls outside the exclusion. The remaining 70% retains the exclusion, subject to the R3,000,000 cap. The same apportionment logic applies if you used part of the home exclusively for business purposes, such as a dedicated home office also claimed as a deductible business expense. SARS guidance on this apportionment is published in the CGT guide for individuals on the SARS website. Confirm your specific figures with a tax adviser before you finalise the sale, because the apportionment can meaningfully change what you owe.

What records do I need to keep to calculate my base cost accurately?

The base cost determines how large the gain is, so your records carry real financial consequence. You need the original purchase price, documented in the sale agreement or title deed. You also need the costs paid at acquisition: transfer duty paid to SARS, transfer attorney fees, and agent's commission if you paid any on the purchase side. Capital improvements made during ownership are included too: building plans, contractor invoices, and proof of payment for additions or substantial renovations. Routine maintenance is excluded. Keep these records for as long as you own the property and for at least five years after you sell it. A gap in the records means you can't prove the base cost was higher, which increases the calculated gain and the capital gains tax owed. If records are incomplete, a tax adviser can help you reconstruct what's available and flag where estimates may be challenged by SARS.

When must I declare and pay the capital gain?

Capital gains are declared in your annual income tax return for the year in which the disposal happens. For a property sale, SARS treats the disposal as happening when the sale agreement is signed (or when it becomes unconditional, if it has suspensive conditions), not when transfer registers at the Deeds Office. If you sign an unconditional sale agreement in March, the gain falls into the tax year ending the following February, even if transfer only registers months later. You include the gain in your return submitted after that tax year closes. SARS doesn't send a separate CGT bill. The amount flows through your income tax return and forms part of the total tax assessment. If you are registered for provisional tax, you may need to include an estimate of the gain in your provisional tax return for the relevant period. An accountant or tax adviser can confirm the correct timing for your situation, which depends on your tax registration status. Filing accurately and on time avoids interest and penalties on any underpayment.

Does CGT apply if I inherit a property and then sell it?

When you inherit a property, your base cost for CGT purposes is generally the market value of the property on the date the person died. You don't inherit the deceased's original purchase price. If the property appreciated significantly before the death and you sell it shortly afterwards, the gain from your perspective may be small, because your base cost is set at inheritance value. If the property continues to appreciate after you inherit it and you sell it years later, the gain is calculated from that inheritance value upward. The Administration of Estates Act governs the winding up of the estate and the transfer to heirs. CGT at the estate level, where the deceased's assets are deemed sold on date of death, is a separate calculation handled through the estate rather than through the heir's personal tax return for the inherited property. Consulting a tax practitioner familiar with deceased estate administration helps you avoid double-counting or misreporting the gain.