Few clauses in a Singapore employment contract are as widely used, and as widely misunderstood, as the restraint of trade clause. Employers insert non-compete, non-solicitation and non-dealing covenants to protect the business when a senior employee leaves. Employees often assume these clauses are automatically unenforceable. Both positions are wrong.
The truth sits in between. Under Singapore law a restraint of trade clause is presumed void, but it can be enforced if the employer proves it protects a legitimate proprietary interest and goes no further than is reasonable. Whether your clause will hold up in court depends heavily on how it was drafted and on the facts when the employee departs.
This guide explains when a Singapore company can enforce a non-compete against a departing employee, the legal test the courts apply, the remedies available, and the practical steps to take the moment a key person resigns.
What a restraint of trade clause is
A restraint of trade clause is a contractual promise by an employee to limit their activities after employment ends. The three most common forms are the non-compete (not joining or setting up a competing business), the non-solicitation (not approaching the former employer’s clients or staff) and the non-dealing covenant (not accepting business from those clients even if they make the first move).
Each clause is usually limited by duration (for example six or twelve months), by geography, and by the scope of activity restricted. Those limits are exactly what the court scrutinises when deciding whether the clause is enforceable.
The legal basis: common law, not statute
Unlike winding up or stamp duty, restraint of trade in Singapore is governed by common law rather than a single statute. The starting point is that any clause restricting a person’s freedom to work or trade is contrary to public policy and therefore void, unless it can be justified.
The leading authority is the Court of Appeal decision in Man Financial (S) Pte Ltd v Wong Bark Chuan David [2008] 1 SLR(R) 663. The court confirmed the two-stage test that an employer must satisfy. First, the clause must protect a legitimate proprietary interest. Second, the restraint must be reasonable, both between the parties and in the wider public interest. If either limb fails, the clause is void and cannot be enforced.
On non-solicitation specifically, the Court of Appeal in Smile Inc Dental Surgeons Pte Ltd v Lui Andrew Stewart [2012] 1 SLR 847 reinforced that even narrower covenants must still be justified by a genuine interest and drafted no wider than necessary. The rules are set against the background of an employee’s general right to earn a living, which the courts protect carefully. Employees should also read their contract alongside the wider framework in the Employment Act 1968.
Legitimate proprietary interests the courts recognise
An employer cannot restrain an ex-employee simply to stop competition. Competition on its own is not a protectable interest. The courts recognise three categories of legitimate interest.
Trade connections and client relationships
Where an employee has built close relationships with the employer’s customers, the goodwill in those relationships belongs to the employer. A properly limited non-solicitation or non-dealing clause protecting that connection is often enforceable.
Confidential information and trade secrets
Pricing models, client lists, formulae and strategic plans can be protected, although the courts prefer confidentiality obligations to blanket non-competes for this purpose. If confidential information is your main concern, a distinct action for breach of confidence supported by an injunction may be more effective than a non-compete.
Maintaining a stable, trained workforce
In some cases the courts accept that an employer has an interest in preventing a departing senior employee from poaching the team. This interest is recognised but applied cautiously.
The reasonableness test in practice
Once a legitimate interest is shown, the clause must be reasonable. The court weighs the duration, the geographic area and the scope of the prohibited activity against the interest being protected. A clause that is too wide on any of these axes will usually fail.
A twelve-month worldwide ban on a mid-level executive will rarely survive. A six-month restriction limited to named competitors or a defined client list stands a much better chance. Singapore courts are generally reluctant to sever or rewrite an unreasonable clause. The so-called blue-pencil test allows a court to delete clearly separable offending words, but it will not redraft a clause to make it reasonable. Overreaching drafting therefore risks losing the protection entirely.
Remedies when an employee breaches
An employer who can show a valid clause and a real threat of breach has two main remedies. The first is an injunction, a court order restraining the ex-employee from taking up the competing role or soliciting clients. Because damages are often hard to quantify, the injunction is usually the primary goal. The second is damages, compensation for losses actually suffered, such as diverted revenue.
Employers sometimes also rely on garden leave, keeping the employee on the payroll during the notice period but away from clients and systems, to blunt the value of confidential information before the restraint even begins. For the practical mechanics of urgent court orders, see our guide to injunctions in Singapore company disputes.
Step-by-step: enforcing a restraint of trade
When a key employee resigns and you suspect a breach, speed and evidence matter. The usual sequence is as follows.
1. Review the signed contract and confirm the exact wording, duration and scope of the clause. 2. Gather evidence of the breach or threatened breach, such as the new employer’s identity, client contact or downloads of confidential data. 3. Send a letter of demand reminding the ex-employee (and often the new employer) of the obligations and requesting written undertakings. 4. If undertakings are refused, instruct solicitors to apply to the High Court for an interim injunction. 5. Proceed to a full hearing on the merits, or negotiate a settlement, depending on the strength of the case.
Documents you will typically need
| Document | Purpose |
|---|---|
| Signed employment contract | Proves the clause and its exact terms |
| Evidence of legitimate interest | Client lists, confidentiality policies, role description |
| Evidence of breach | Emails, resignation letter, new employer details, system logs |
| Letter of demand | Puts the ex-employee on notice and preserves your position on costs |
| Affidavit in support | Sets out the facts for the injunction application |
Timeline and indicative costs
| Stage | Indicative timing | Indicative cost |
|---|---|---|
| Letter of demand and undertakings | 1 to 2 weeks | Lower, often a fixed fee |
| Interim injunction application | Days to a few weeks (urgent) | Moderate to high, driven by urgency |
| Full trial on the merits | Several months to over a year | Substantial |
Costs vary widely with the complexity and urgency of the matter. The figures above are indicative only. An early letter of demand is often the most cost-effective step and resolves many cases without litigation.
What happens after the order
If the court grants an injunction, the ex-employee must comply for the period specified or face contempt proceedings. If the clause is found unreasonable, the employer is left without protection and may face an adverse costs order. This is why drafting matters so much: a narrow, well-justified clause is worth far more than an aggressive one that collapses in court. Employers should review their standard employment contracts regularly, and remember that hiring and departure decisions must also comply with the Workplace Fairness Act.
Frequently asked questions
Are non-compete clauses automatically void in Singapore?
No. They are presumed void but can be enforced if the employer proves a legitimate proprietary interest and that the restraint is reasonable in duration, geography and scope.
How long can a non-compete last?
There is no fixed maximum. Reasonableness depends on the role and industry, but shorter periods such as six to twelve months are far more likely to be upheld than multi-year bans.
Can the court rewrite an unreasonable clause?
Only very limited severance is possible under the blue-pencil test, which deletes clearly separable words. The court will not redraft the clause to make it reasonable, so overbroad drafting can void the whole restraint.
What if the employee has already taken confidential data?
You may have a separate claim for breach of confidence and can seek an injunction to restrain use or disclosure, alongside or instead of the restraint of trade claim. Move quickly and preserve the evidence.
Need Help With This Matter?
If your company is facing this situation, Raffles Corporate Services can assist with the groundwork, including ACRA filings, compliance documentation, and coordinating with experienced Singapore law firms. For matters requiring court proceedings, we work with a panel of experienced Singapore law firms who offer cost-effective and efficient legal service and advice.
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This article is for general information only and does not constitute legal advice. For advice specific to your situation, please consult a qualified Singapore Advocate and Solicitor.
– The Editorial Team, Raffles Corporate Services