Written by Roy Bregman, admitted
attorney with over 52 years' experience in commercial law. View Roy's profile.
Last updated: 11 November 2026
|
Key Takeaways ·
A
restraint of trade is valid in South Africa, but a court will enforce it only
to protect a real business interest, such as client relationships or
confidential information, and never simply to stop competition. ·
If
a restraint is too wide, other protections often still work: a narrow
non-solicitation clause, a confidentiality undertaking and the common law
against unlawful competition. ·
Speed
matters. Most restraints last about 12 months, and in 2026 the Supreme Court
of Appeal declined to decide an appeal because the restraint had almost run
out. ·
When
a key employee resigns, secure your devices and data, send a letter of demand
and take legal advice within days, not weeks. |
Yes, a restraint of trade is generally enforceable in South
Africa, but only to the extent that it protects a genuine business interest and
is reasonable. If your restraint is too wide, a court may cut it down or refuse
to enforce it. Even then, your business is not left defenceless.
Picture this. Your senior sales manager resigns on a Friday.
By Monday, they are working for your biggest competitor, and your clients are
taking their calls. Your lawyer reads the restraint and warns that it is
probably too broad to survive in court.
This article explains when courts enforce restraints, which
other protections often work better, what the Supreme Court of Appeal has said
recently, and what to do when a key employee leaves.
What is a restraint of trade, and when will a court enforce it?
A restraint of trade is a clause that stops a person from
competing with a business for a period after the relationship ends. It usually
appears in employment contracts, sale of business agreements and franchise
agreements.
South African courts treat restraints as valid unless
enforcing them would be unreasonable and against public policy, meaning against
the interests of society as a whole. The Supreme Court of Appeal confirmed this
approach in Reddy v Siemens Telecommunications (Pty) Ltd.
Who must prove that a restraint is unfair?
The person who wants to escape the restraint usually must
prove that it is unreasonable. In Reddy, the court explained that it must
balance two ideas. The first is that people must keep their promises, which
lawyers call pacta sunt servanda, Latin for "agreements must be
honoured". The second is that everyone should be free to work and earn a
living, a right protected by section 22 of the Constitution.
What will a court protect?
A court will protect only what lawyers call a protectable
interest. In practice there are two: your trade connections, meaning your
relationships with clients and suppliers, and your confidential information,
such as pricing, client data and trade secrets. A business has no right simply
to be free of competition, and it cannot stop a former employee from using the
general skills and experience they built up.
To decide whether a restraint is reasonable, courts ask four
questions first set out in Basson v Chilwan:
·
Does the business have an
interest that deserves protection after the person leaves?
·
Is that interest threatened
by the former employee?
·
If so, does that interest
outweigh the person's interest in being free to work?
·
Is there any other public
interest reason to enforce or reject the restraint?
What protects your business if the restraint fails?
Several other legal tools can protect your clients and
information even when a broad restraint fails. They are often easier to
enforce, because they intrude less on a person's freedom to work. The table
below compares them.
|
Protection |
What it does |
How likely a court is to enforce it |
|
Broad restraint of trade |
Stops the person working for a competitor in a
set area for a set time |
Only if reasonable; wide restraints are often
cut down or refused |
|
Non-solicitation clause |
Stops the person approaching or doing business
with your clients |
More likely, especially if limited to clients
they actually dealt with |
|
Non-poaching clause |
Stops the person recruiting your staff |
Usually enforced if limited to a reasonable
period |
|
Confidentiality undertaking |
Stops the person using or disclosing your
confidential information |
Very likely, and it can last indefinitely |
|
Common law against unlawful competition |
Protects your information even without any
written clause |
Available if you can prove the misuse |
|
Garden leave clause |
Pays the person to stay away from work during
the notice period |
Effective if the contract allows it |
A non-solicitation clause is easier to enforce
A non-solicitation clause does not stop someone working for
a competitor. It only stops them from approaching your clients. Because it
leaves the person free to earn a living, courts are more willing to uphold it.
The strongest clauses cover the clients the employee
actually dealt with in the last 12 to 24 months. They also prohibit accepting
business from those clients, not only approaching them.
Your confidential information is protected even without a restraint
Client lists, pricing, margins and tender strategies are
protected by the common law, which is the law developed by the courts rather
than by Parliament. A former employee who uses that information to get a head
start on you competes unlawfully, whether or not they signed a restraint.
Lawyers sometimes call this the springboard principle.
Garden leave buys time
Garden leave means paying an employee during the notice
period while keeping them away from clients and systems. You need a contract
clause that allows it. By the time they join a competitor, the information they
carry is out of date.
What have the courts decided recently about restraints?
The Supreme Court of Appeal has decided three restraint
cases in the past three years, and in each one the outcome turned on
confidential information or on time running out. We found no Constitutional
Court judgment on restraints of trade in that period.
Maritz v Truworths (2026): the clock keeps running
In Maritz v Truworths Limited, a senior credit
risk executive resigned after ten years at Truworths and joined the TymeBank
group. Truworths said the group was a competitor and obtained a High Court
order enforcing his 12-month restraint and stopping him from disclosing its
trade secrets.
Parts of that order were suspended while he appealed, so he
started the new job. When the Supreme Court of Appeal heard the appeal in
August 2026, the restraint had only two weeks left to run. The court dismissed
the appeal as moot, meaning a decision would have no practical effect. It
noted, however, that the order protecting Truworths' trade secrets lasts
indefinitely.
The lesson is simple. A restraint protects you only if you
enforce it quickly, but a confidentiality obligation keeps working long after
the restraint ends.
Oasis Water (2025): franchisees cannot take the business system with them
In Van den Berg Water (Pty) Ltd t/a Oasis Water Lynnwood and
Others v Oasis Water (Pty) Ltd, several franchisees left the Oasis
Water franchise and reopened under their own brand. They used Oasis client
records to contact its customers and copied its marketing and pricing.
By the time the case reached the Supreme Court of Appeal,
the 12-month restraint in the franchise agreements had expired, so the court
did not decide whether it was enforceable. It nevertheless upheld orders that
the franchisees return Oasis manuals, client lists and signage, and stop using
its business system and intellectual property. It held that pricing, margins,
marketing strategies and client records are confidential, because they are
neither trivial nor publicly available.
Lead HV v HV Test (2024): the new employer can be stopped too
In Lead HV (Pty) Ltd and Another v HV Test (Pty) Ltd,
two employees bound by a restraint joined a direct competitor. HV Test obtained
an Anton Piller order, which is a court order allowing a supervised search to
find and preserve evidence before it can be destroyed. The search found HV
Test's confidential information in the employees' possession.
The High Court granted a final interdict, a permanent court
order, stopping the competitor and its general manager from using HV Test's
customer and quote lists or approaching its customers. The Supreme Court of
Appeal dismissed the competitor's appeal. Notably, HV Test's first urgent
application against the competitor failed for lack of urgency, so the case took
the ordinary, slower route.
The older cases that still set the rules
In Reddy v Siemens, the Supreme Court of Appeal enforced a 12-month
restraint against an employee who joined a direct competitor, because he held
confidential information and the risk of it being used was obvious. By
contrast, in Digicore Fleet Management (Pty) Ltd v Steyn,
the court refused to enforce a two-year restraint against a sales executive who
left with nothing more than the experience and broker contacts she had brought
with her.
What should you do when a key employee resigns?
Act within days, not weeks, because courts expect you to
move quickly and restraints run out. These steps give you the best chance of
protecting your business.
1. Read the contract immediately. Identify each protective clause
and note when it expires.
2. Secure your information. Collect laptops and phones, cut off
system access and preserve email and download records as evidence.
3. Find out where the employee is going. Ask directly and record
the answer in writing.
4. Send a letter of demand. Ask the employee, and if necessary, the
new employer, for written undertakings within a short deadline, usually 24 to
48 hours.
5. Go to court quickly if the undertakings are refused. An
interdict, which is a court order stopping the conduct, is the usual remedy.
Delay can cost you urgency and, as Maritz shows, the restraint itself.
6. Fix your contracts for next time. Use separate clauses for
competition, clients, staff and confidentiality, so that if one fails the
others survive.
What if you are the employee?
If you signed a restraint, assume it is valid until a lawyer
tells you otherwise. You may be able to escape it if your former employer has
no real interest to protect, for example because you had no client contact or
confidential information, or if it is far wider than necessary.
Even then, never take or use your former employer's
confidential information. That exposes you to an interdict and a damages claim,
whatever the restraint says.
The bottom line
A restraint of trade is enforceable in South Africa, but
only if it is reasonable and you act on it quickly. Recent Supreme Court of
Appeal judgments show that confidentiality obligations and the law against
unlawful competition often protect a business long after a restraint fails or
expires.
The best protection is built before anyone resigns: narrow,
separate clauses, good control of your data and a clear plan for the first 48
hours after a resignation.
Frequently asked questions
Is a restraint of trade enforceable in South Africa?
Yes, provided it is reasonable. South African courts enforce
a restraint of trade unless the person bound by it proves that enforcing it
would be against public policy. A court will protect real interests, such as
client relationships and confidential information, but it will not enforce a
restraint whose only purpose is to stop competition.
How long can a restraint of trade last in South Africa?
There is no fixed maximum. A court asks whether the period
is longer than the business needs for protection. Restraints of 12 months are
common and often upheld, while two years or more needs strong justification. A
court can enforce a shorter period than the contract states, or refuse to
enforce the restraint altogether.
Can my former employer stop me from working for a competitor?
Only if the restraint protects a genuine interest. If you
had access to confidential information or close client relationships, a court
may stop you from joining a competitor for a reasonable period. If you leave
with only your own skills and experience, a court is unlikely to enforce the
restraint against you.
What is the difference between a restraint of trade and a non-solicitation
clause?
A restraint of trade stops you from working for a
competitor, usually within a set area and period. A non-solicitation clause
lets you work anywhere, but stops you from approaching your former employer's
clients or staff. Because it is narrower and leaves you free to earn a living,
courts are more willing to enforce it.
Can a business protect its confidential information without a restraint of
trade?
Yes. The common law protects confidential information such
as client lists, pricing and trade secrets, whether or not the employee signed
a restraint. A former employee who uses that information to gain a head start
competes unlawfully, and the business can ask a court for an interdict stopping
the misuse.
Talk to us before the next resignation lands
Whether you are an employer protecting your clients or an
employee wondering whether your restraint will hold, early advice saves time,
money and stress. At Bregman Moodley Attorneys, we draft restraints that courts
will enforce, review existing contracts, and act quickly when a key person
leaves.
Get in touch today. Call us on +27 (0)11 646 0335, email roy@bmalaw.co.za, or visit bregmans.co.za. We will take the sting out of your restraint dispute.


