A practical guide to non-disclosure agreements in South Africa — what must be included, how SA courts treat confidentiality clauses, mutual vs one-way NDAs, and when an NDA is enforceable.
Non-disclosure agreements (NDAs), also called confidentiality agreements, are widely used in South African business — in employment contexts, investor discussions, supplier relationships, and when sharing intellectual property. Under South African law, an NDA is a binding contract governed by the common law of contract, and must meet the standard requirements for a valid agreement: offer, acceptance, consideration, capacity, and legality of purpose.
Only one party discloses confidential information. The other party (the receiver) is bound to keep it confidential. Used when only one party is sharing information — e.g. a startup sharing a business plan with a potential investor.
Both parties exchange confidential information and both are bound to protect each other's information. Used when two companies are discussing a potential partnership, joint venture, or merger.
Included in an employment contract or as a standalone agreement, binding employees (and contractors) to confidentiality during and after employment. Under South African common law, some degree of confidentiality duty exists even without an express clause — but express clauses are more enforceable.
Identify the disclosing party and the receiving party by full legal name (and registration number for companies). If both parties are disclosing, identify them as such.
Be specific. Vague definitions are challenged in court. Examples of what to include:
Also specify what is excluded from confidentiality — typically:
State clearly that the receiving party:
Specify why the information is being shared. e.g. "for the purpose of evaluating a potential business investment" or "for the purpose of performing services under the service agreement dated [date]." Courts look to this to determine scope of use.
How long does the confidentiality obligation last?
Specify that South African law governs the agreement and that disputes will be resolved in South African courts (or via arbitration). This is especially important in cross-border arrangements.
An NDA should state that breach may cause irreparable harm and that the disclosing party is entitled to seek an interdict (injunction) in addition to damages. SA courts can grant an interdict prohibiting continued disclosure without needing to prove actual financial damages.
South African courts will enforce an NDA where:
An overly broad NDA (attempting to protect information that is already public, or restricting the receiver from using general skills and knowledge they had before) may be partially or fully unenforceable.
An NDA deals only with confidentiality of specific information. A restraint of trade clause (preventing a party from competing in the market) is a separate concept. The two are often combined in employment contracts but should be clearly distinguished.
For standard commercial NDAs in South Africa, notarisation is not required. A signed written agreement is valid. However, for NDAs related to property transactions or cross-border arrangements that need authentication abroad, notarisation may be appropriate.
Yes, a verbal confidentiality agreement is technically binding in SA contract law, but it is extremely difficult to prove in practice. Always use a written NDA.
Yes, to a degree. An NDA protects the confidentiality of information you share. It does not replace patent, trademark, or copyright registration — those provide stronger, broader protection. An NDA is best thought of as temporary protection while formal IP registration is processed.
Yes. NDA obligations can be included in an employment contract or as a standalone agreement. Post-employment confidentiality clauses are enforceable if they are reasonable — generally protecting genuine trade secrets rather than general skill and knowledge.
You can apply to the High Court for an interdict (injunction) to stop ongoing disclosure, and claim damages for proven losses caused by the breach. Proving actual financial damages can be difficult — which is why the interdict is often the most important remedy.
Last reviewed: 2026-03-03. This article is informational and not legal advice.
ElyForma articles are written for informational use and practical guidance. They do not replace advice from a qualified legal professional for your specific case.
Experienced in corporate law and intellectual property.