A recent District Court decision shows why performance bonus clauses that promise a payout “subject to criteria to be agreed later” can leave both employers and employees exposed, and why an employee who unilaterally redefines what was agreed will lose.
The Case: Ngai Nai Ping Jango v Banshing Industrial Co (Pte) Ltd
In Ngai Nai Ping Jango v Banshing Industrial Co (Pte) Ltd [2026] SGDC 277, the claimant was employed as chief financial officer of a family-run precision engineering manufacturer. His contract provided for a basic salary of $20,000 a month plus an Annual Performance Bonus (APB) of $100,000, described as a base amount with a stretch goal, with the criteria for each to be “agreed and defined” during his three-month probation period.
That never happened during probation. The criteria were only communicated more than four months later, by email, and consisted of a specific deliverable: a Microsoft Excel valuation workbook made up of seven linked worksheets, built around a valuation textbook chapter the company’s director had shared with him. The claimant acknowledged receiving these criteria and did not dispute them at the time.
He was terminated roughly two years after his employment began, having never delivered the bonus for either 2023 or 2024. He sued for the two years of unpaid bonus (S$200,000), plus damages for alleged misrepresentation, arguing breach of contract, fraudulent misrepresentation, negligent misrepresentation and estoppel by representation. The District Court dismissed every claim.
Why the Claim Failed
The bonus criteria were not vague or purely discretionary. They were specific, and the claimant did not meet them. The court found that the seven worksheets, not the claimant’s general job performance as CFO, were the actual criteria for the bonus. The claimant never delivered them. Instead, he delivered what he described as the “substance” of the criteria, built on his own 30 years of experience, because he believed he “knew better” than the model his employer had specified.
The court was unimpressed. A bonus criteria clause requiring criteria to be “agreed and defined” creates a bilateral obligation, not a licence for the employee to substitute their own judgment once criteria have in fact been fixed. Once the claimant acknowledged the criteria by email and did not challenge them, he was bound by them, and his unilateral reinterpretation could not satisfy his contractual obligation.
Late agreement on criteria was not fatal to the employer. The contract technically required criteria to be set during probation, and that deadline was missed. But the court held that this failure could not be attributed to the employer alone, since there was no solid evidence the employee had actually chased the criteria during probation, and in any event the parties were found to have varied the contract by proceeding, months later, to agree criteria beyond the probation window without objection.
Criteria for one year can carry over into the next, where a bonus scheme runs year to year and the employee never satisfies the original criteria. The court rejected the alternative readings (a single set of criteria for the entire employment, or fresh criteria to be fixed in advance for every future year) as commercially unrealistic.
Oral promises about deferred bonuses are hard to enforce without paper. The claimant also alleged that the company’s managing director had verbally assured him, during a casual conversation, that the bonuses would be deferred but eventually paid once cash flow improved. The managing director denied ever making that promise. On the evidence, including the absence of any contemporaneous message referencing the alleged assurance despite an active chat history between the two, the court preferred the employer’s account. The misrepresentation and negligent misrepresentation claims failed on this factual finding alone.
Estoppel by representation is not a standalone claim in Singapore. Even setting the factual dispute aside, the court confirmed that estoppel by representation is a defensive doctrine only. It cannot be used to found a claim for unpaid bonus, which meant this limb of the case was doomed regardless of what was or was not said.
Practical Takeaways for Employers
Employment contracts that defer bonus criteria to a later date are common, particularly for senior or specialised roles where targets cannot be fixed at the outset. This case shows how to draft and administer such clauses defensibly.
First, set a real deadline for agreeing criteria, and follow through on it. A missed deadline will not automatically doom the clause, but it invites unnecessary litigation risk and an argument that no enforceable criteria ever existed.
Second, once criteria are agreed, put them in writing and get the employee to acknowledge them. The email exchange fixing and confirming the seven worksheets was decisive here. Contemporaneous, specific, written criteria are far more defensible than a general reference to “performance” or “KPIs.”
Third, resist paying out based on an employee’s own account of having met the “substance” or “spirit” of a target. If the criteria are specific and objective, insist on the actual deliverable, not a reinterpreted substitute, however experienced the employee is.
Fourth, keep any conversations about deferring or waiving bonus conditions on the record. Casual oral assurances, especially about future payment once finances improve, are exactly the kind of representation that gets litigated later. If a genuine concession is being made, confirm it in writing.
Practical Takeaways for Employees
If a bonus clause defers the criteria to a later date, chase written confirmation of what those criteria are, and get it in writing well before any deadline in the contract. Keep records of your requests.
Once criteria are set and acknowledged, meet them as specified. A belief that your own approach is better, or that your overall performance should count instead, is not a substitute for what was actually agreed, and courts will not accept it as one.
Do not rely on verbal assurances about bonus payments, however senior the person making them. If someone tells you a bonus will be paid later, ask for it in writing or follow up by email to create a record.
FAQ
Q1: Can an employer withhold a bonus if the employee did not meet the specific deliverable agreed, even if the employee worked hard overall? Yes. Where a bonus is tied to a specific, agreed deliverable rather than general job performance, meeting the deliverable is what matters. Strong performance in other respects does not create an entitlement if the actual criteria were not satisfied.
Q2: If bonus criteria are supposed to be agreed during probation but are only fixed months later, is the clause unenforceable? Not necessarily. A court may find that the parties varied the contract by proceeding to agree criteria after the original deadline without objection, particularly where the employee acknowledged and engaged with the later-agreed criteria.
Q3: Can an employee satisfy a bonus condition by delivering something different from what was specified, if they believe it achieves the same result? Generally no. Where the criteria are specific, an employee cannot unilaterally substitute their own version and expect it to count, even if they believe their approach is superior.
Q4: Is a verbal promise from a director that a bonus will “definitely” be paid later enforceable? It can be, but only if the employee can prove the promise was actually made, on a balance of probabilities. Without supporting documentation, such claims are difficult to establish, especially where the parties otherwise communicated in writing.
Q5: Can an employee rely on estoppel to claim an unpaid bonus in Singapore? No. Singapore law treats estoppel by representation as a shield, not a sword. It can be used to defend against a claim but cannot itself found a cause of action for payment.
Q6: How does this differ from a purely discretionary bonus?
A purely discretionary bonus leaves the decision whether to pay, and how much, entirely up to the employer. The bonus in this case was not that. It was a conditional bonus: an agreed, objective deliverable that, once fixed and acknowledged, was binding on both sides. The employer could not have refused payment once the criteria were met, and equally the employee could not claim payment by falling back on discretion or general performance once he failed to meet what had actually been agreed.
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