What is a sale of shares agreement?
Is a sale of shares agreement legally binding in South Africa?
“A company must enter in its securities register every transfer of any certificated securities … A company may make an entry contemplated in subsection (5) only if the transfer is evidenced by a proper instrument of transfer that has been delivered to the company; or was effected by operation of law (s 51(5)–(6)). A certificate evidencing certificated securities is proof that the named security holder owns the securities, in the absence of evidence to the contrary (s 51(1)(c)).”
“There must be levied and paid for the benefit of the National Revenue Fund a tax, to be known as the securities transfer tax, in respect of … every transfer of any security issued by … a close corporation or company incorporated, established or formed inside the Republic … at the rate of 0,25 per cent of the taxable amount of that security determined in terms of this Act (s 2(1)).”
“It is trite that if a buyer hopes to avoid the consequences of a voetstoots sale, he must show not only that the seller knew of the latent defect and did not disclose it, but also that he or she deliberately concealed it with the intention to defraud (dolo malo).”
“For purposes of this Act, a merger occurs when one or more firms directly or indirectly acquire or establish direct or indirect control over the whole or part of the business of another firm (s 12(1)(a)). The parties to an intermediate or large merger may not implement that merger until it has been approved … by the Competition Commission … the Competition Tribunal … or the Competition Appeal Court (s 13A(3)).”
When you need a Sale of Shares
- You are buying or selling 100% (or a controlling block) of the shares in a private company and the buyer wants the company itself — its contracts, licences, tax history and goodwill — to continue uninterrupted, which a share sale achieves and an asset sale does not.
- A founder or investor is selling part of their shareholding, or a shareholder is exiting, and the price, payment terms, warranties and the section 51 register transfer all need to be properly recorded.
- The transaction is large enough to need regulatory clearance first — for example Competition Commission merger approval above the notification thresholds, or South African Reserve Bank / exchange-control involvement where a non-resident is buying or selling the shares.
- You want the buyer protected against undisclosed liabilities (tax, litigation, debt, employee or environmental issues) through negotiated warranties and indemnities, because the common law gives a share buyer almost no implied protection about the state of the company behind the shares.
- A shareholders’ agreement or the company’s MOI contains pre-emptive rights or transfer restrictions, and the sale must be structured to comply with (or obtain waivers of) those rights before shares can validly change hands.
- You need a quick, lower-risk transfer of a small or family company and want a simpler, plain-English sale of shares agreement that still covers price, warranties, transfer and STT without full M&A machinery.
What a Sale of Shares should contain
The shares, the price and payment
Identify the exact shares being sold (number, class, percentage and the company), the purchase price, and how and when it is paid — lump sum, in tranches, against an escrow, or with a deferred or earn-out component tied to future performance. State whether the price is fixed or adjusted on a completion-accounts or locked-box basis.
Conditions precedent (suspensive conditions)
List the things that must happen before the sale completes — satisfactory due diligence, board and shareholder approvals, third-party consents, Competition Commission merger approval where required, exchange-control approval for non-resident parties, and bank or landlord consents. The agreement is signed but only becomes unconditional once these are fulfilled or waived by a long-stop date.
Seller warranties about the company
Because a share buyer inherits the whole company, the seller gives express warranties that the company’s accounts are accurate, that it owns its assets, that there is no undisclosed debt, tax, litigation or employee liability, that material contracts are in force, and that the shares are sold free of any encumbrance. These contractual warranties replace the protection the common law does not give a share buyer.
Indemnities and limitation of liability
Indemnities give the buyer a rand-for-rand claim for specific known or feared risks (for example a pending SARS assessment or a live dispute). The seller will negotiate limits — a cap on total liability, a de minimis and basket threshold, and time bars for bringing claims — balancing the buyer’s protection against the seller’s certainty of exit.
Pre-emptive rights and MOI / shareholders’ agreement compliance
Most private companies restrict share transfers in their Memorandum of Incorporation or shareholders’ agreement, typically giving existing shareholders a right of first refusal. The agreement must record that those pre-emptive rights have been offered, waived or exhausted, otherwise the transfer can be challenged or blocked by the company or co-shareholders.
Completion / transfer mechanics and the securities register
Set out exactly what is delivered at completion: original share certificates, signed and undated securities transfer forms, resignation letters of outgoing directors, and updated registers. Critically, ownership only passes when the company enters the transfer in its securities register under section 51 of the Companies Act — the agreement should oblige the company to do so promptly.
Securities transfer tax and tax allocation
Allocate who pays the 0.25% securities transfer tax under the Securities Transfer Tax Act (commonly the buyer or the company), confirm it will be paid to SARS within the statutory period, and deal with any tax warranties, capital gains tax on the seller’s side, and tax indemnities so the parties’ tax positions are clear.
Restraint of trade, confidentiality and handover
A buyer paying for goodwill usually requires the seller to agree a reasonable restraint of trade (not to compete or solicit for a period and area), to keep the deal and company information confidential, and to assist with a smooth handover — director changes, bank-signatory changes and notifications to key customers and suppliers.
Sale of shares (share sale) vs sale of business (asset sale) in South Africa
| Feature | Sale of shares (share sale) | Sale of business (asset sale) |
|---|---|---|
| What the buyer acquires | The company itself — all its assets and all its liabilities come with it | Selected assets and only the liabilities the buyer agrees to assume |
| Liabilities | Inherited in full unless excluded by warranty/indemnity — hidden debts follow the shares | Stay with the seller’s entity unless specifically taken over |
| Continuity | Contracts, licences, BEE status and tax history usually continue unchanged | Contracts, licences and permits often need consent or re-application |
| Transfer tax | Securities transfer tax at 0,25% on the share transfer | Transfer duty / VAT may apply; possible going-concern VAT zero-rating |
| Completion step | Entry of the transfer in the securities register (Companies Act s 51) | Transfer of each asset; section 34 Insolvency Act creditor notice for a business |
| Buyer’s main protection | Express warranties and indemnities (common law gives little) | Buyer chooses what to take, limiting exposure to unknowns |
Common South African pitfalls
- Relying on the common law to protect the buyer. A share buyer inherits the whole company, yet a voetstoots ("as is") sale defeats most latent-defect claims unless the seller fraudulently concealed the problem — confirmed in Odendaal v Ferraris [2008] ZASCA 85. Without detailed express warranties and indemnities, the buyer takes on every hidden liability with almost no recourse.
- Treating the signed agreement as the transfer. The contract creates the obligation to transfer, but ownership of certificated shares only passes when the company enters the transfer in its securities register against a proper instrument of transfer under section 51 of the Companies Act. Skipping the register entry and share-certificate handover leaves the buyer without registered title.
- Forgetting securities transfer tax. STT of 0.25% on the higher of the price or market value is payable to SARS, and for unlisted shares it is due within two months from the end of the month of transfer. Parties frequently leave it unallocated, miss the deadline, or forget that SARS can dispute a low price between connected persons.
- Ignoring pre-emptive rights in the MOI or shareholders’ agreement. Most private companies restrict transfers and give co-shareholders a right of first refusal. Selling without first offering the shares as required can render the transfer void or expose the seller to a damages or specific-performance claim by the other shareholders.
- Missing a required Competition Commission merger filing. If the turnover or asset thresholds are met, an intermediate or large merger may not be implemented before approval. Closing a notifiable share sale without clearance ("gun-jumping") risks penalties and unwinding, so merger approval should be a condition precedent.
- Overlooking exchange control where a non-resident is involved. Where a non-resident buys or sells the shares, South African Reserve Bank exchange-control rules apply — non-resident endorsement of share certificates, and SARS clearance before proceeds or dividends can be externalised. Build these approvals in as conditions precedent rather than discovering them at completion.
Frequently asked questions
What is the difference between a sale of shares and a sale of business in South Africa?
In a sale of shares you buy the company itself, so all its assets, contracts and liabilities transfer with the shares because nothing changes except who owns them. In a sale of business (asset sale) you buy only selected assets and chosen liabilities, leaving the company shell — and any hidden debts — behind with the seller. Share sales favour continuity; asset sales let a buyer limit exposure to unknown liabilities.
Does a sale of shares agreement have to be in writing to be valid?
No South African statute requires a share sale to be in writing to be valid — it is an ordinary contract of sale, binding once the parties agree on the shares and the price. In practice every share sale is in writing, because the warranties, indemnities, conditions precedent and completion mechanics that protect a buyer cannot work without a detailed written agreement, and the company will need a signed instrument of transfer to update its securities register.
When does ownership of the shares actually transfer?
Ownership passes not when the agreement is signed but when the company enters the transfer in its securities register under section 51 of the Companies Act 71 of 2008, against delivery of a proper instrument of transfer (a signed securities transfer form) and the old share certificate. Until the register is updated and a new certificate issued, the buyer is not the registered holder, even if the price has been paid.
How much securities transfer tax is payable on a share sale?
Securities transfer tax is levied at 0.25% of the taxable amount — generally the higher of the purchase consideration or the market value of the shares — under the Securities Transfer Tax Act 25 of 2007. For unlisted shares the tax is paid to SARS within two months after the end of the month in which the transfer took place. The agreement should state who bears the STT.
Do I need Competition Commission approval to buy shares in a company?
Only if the transaction is a notifiable merger. From 1 May 2026, an intermediate merger must be notified where the combined turnover or assets equal or exceed R1 billion and the target firm’s figure is at least R200 million; a large merger applies at R9.5 billion combined and R280 million for the target. Below these thresholds no filing is needed, but a notifiable share sale may not close before approval.
What warranties should a buyer get in a share sale?
Because a share buyer inherits the whole company with little implied protection, the buyer should obtain express warranties that the accounts are accurate, that there is no undisclosed debt, tax, litigation or employee liability, that the company owns its assets and key contracts are in force, and that the shares are sold free of encumbrances — backed by indemnities for specific known risks such as a pending SARS assessment.
Can a shareholder sell shares if the company has pre-emptive rights?
Only after complying with them. Most private companies restrict transfers in their Memorandum of Incorporation or a shareholders’ agreement, usually requiring the selling shareholder to first offer the shares to existing shareholders (a right of first refusal). Selling to an outsider without following that process can render the transfer void or expose the seller to a claim, so pre-emptive rights must be offered, waived or exhausted first.
What is a condition precedent in a sale of shares agreement?
A condition precedent (suspensive condition) is something that must happen before the sale becomes unconditional and completes — for example satisfactory due diligence, Competition Commission approval, exchange-control approval, board and shareholder resolutions, or third-party consents. The agreement is signed and binding, but if a condition is not met (or waived) by the agreed long-stop date, the deal lapses and the parties walk away.
Sources & authority
- Companies Act 71 of 2008, ss 51, 112 & 115 (transfer of certificated securities and securities register; fundamental transactions)
- Securities Transfer Tax Act 25 of 2007, ss 2 & 6 (levy of STT; taxable amount for unlisted securities)
- Odendaal v Ferraris (422/07) [2008] ZASCA 85; 2009 (4) SA 313 (SCA)
- Competition Act 89 of 1998 (merger control; intermediate and large merger notification)
This guide is general information, not legal advice. It reflects the law as at June 2026.