Guilliey v OCAPAC Mauritius Holding Ltd — Privy Council dismisses employee’s claim that 13-instalment salary structure evaded statutory gratuity obligation

Case
Luc Guilliey v OCAPAC Mauritius Holding Ltd (Mauritius)
Court
Judicial Committee of the Privy Council (United Kingdom)
Judge
Lady Simler (His Majesty King Charles III, 2023)
Date Decided
11 June 2026
Citation
[2026] UKPC 25
Topics
Employment law, Statutory gratuity, Contract construction, Mauritius
Source
Read the full opinion

Background

Luc Guilliey, a French national, was employed by OCAPAC Mauritius Holding Ltd as a Territory Sales Representative under a contract dated 6 November 2014, with continuous employment deemed to run from 1 September 2002. His contract comprised a general Terms & Conditions document and a Country Annex specific to Mauritius, with the Country Annex expressly taking priority in the event of any inconsistency. The Terms defined his annual basic salary as a fixed sum payable monthly in arrears. The Country Annex elaborated that this annual basic salary would be paid in 13 instalments — 12 monthly payments of basic salary and a thirteenth instalment described as a “statutory end of year gratuity equivalent to one month’s salary in accordance with applicable laws,” payable each December.

Mauritius’s End of the Year Gratuity Act 2001 obliges employers to pay every qualifying employee a year-end gratuity of not less than one-twelfth of the employee’s monthly basic wage or salary for each month worked. Section 3(3)(c) of the Act further provides that where an employee is entitled to an end-of-year bonus under any agreement, the employee receives whichever of that bonus or the statutory gratuity is higher. In May 2016, Guilliey notified OCAPAC that he considered its 13-instalment structure to be an unlawful device to evade the statutory obligation, treating himself as constructively dismissed under section 36(4) of the Employment Rights Act 2008.

His claim was dismissed by the Industrial Court in June 2020 for disclosing no valid cause of action. The Supreme Court of Mauritius reversed that procedural ruling, considered the merits, and in August 2024 held that the contract was consistent with the Act and that Guilliey had been paid all he was owed. His constructive unfair dismissal claim therefore also failed. He appealed as of right to the Privy Council under section 81(1)(b) of the Constitution of Mauritius.

The Court’s Holding

The Board (Lady Simler, with Lords Sales and Richards) dismissed the appeal. It held that the Terms and the Country Annex, read together, were clear and unambiguous. The annual basic salary was a contractually agreed total figure, lawfully divided into 13 equal instalments: 12 constituting monthly basic wage and the thirteenth constituting the statutory end-of-year gratuity paid in December. That thirteenth instalment was equivalent in amount to one month’s basic salary, satisfying the “not less than” minimum formula in section 3(2)(a) of the Act. The respondent’s statutory obligation under the Act was thereby discharged.

The Board rejected the argument that including the gratuity within the contractually defined annual basic salary was arithmetically or legally impossible. It drew a clear distinction between the contractual concept of “annual basic salary” and the statutory concept of “basic wage or salary” under the Act, noting they need not be conflated. Nothing in the Act prevents an employer from contracting to fix a sum that simultaneously satisfies the statutory gratuity obligation, and section 3(3)(c) of the Act expressly contemplates that possibility. The contractual arrangement was not colourable or evasive but a legitimate, Act-compliant mechanism.

Because the contract was clear on its face, there was no room to invoke the interpretive principles in Articles 1156–1162 of the Mauritian Civil Code — including the rule that ambiguous terms be construed against the drafter — nor to admit extrinsic evidence of the parties’ common intention. The appellant’s contention that the contract was a contrat d’adhésion warranting contra proferentem construction was also dismissed, both for lack of ambiguity and because the point had not been raised in the courts below. With no breach of contract established, the constructive dismissal claim fell away entirely.

Key Takeaways

  • An employer in Mauritius may structure an employment contract so that the annual basic salary is divided into 13 instalments, with the thirteenth explicitly designated as the statutory end-of-year gratuity, provided the amount paid is not less than the minimum required by the End of the Year Gratuity Act 2001.
  • The contractual term “annual basic salary” and the statutory concept of “basic wage or salary” under the Act are legally distinct; conflating them to argue that the gratuity must be paid on top of the entire contracted salary figure is an error of construction.
  • Where contractual terms are clear and unambiguous under Mauritian law, courts cannot invoke Articles 1156–1162 of the Civil Code to rewrite the contract by reference to asserted common intention or contra proferentem rules.
  • Section 3(3)(c) of the End of the Year Gratuity Act 2001 expressly permits a contractual basis for the statutory gratuity; payment under such a contractual arrangement discharges the employer’s statutory obligation provided it meets the statutory minimum.

Why It Matters

This decision provides important clarity for employers operating in Mauritius who structure total remuneration packages to absorb statutory year-end gratuity obligations within an agreed annual figure. The Privy Council confirmed that such arrangements are lawful and not evasive, so long as the designated gratuity component meets the statutory minimum formula, and that section 3(3)(c) of the 2001 Act was designed precisely to accommodate contractual gratuity provisions.

The ruling also illustrates the limits of Mauritius’s Civil Code interpretive canons: absent genuine ambiguity, courts will give effect to clear contractual language without recourse to extrinsic evidence or presumptions favouring the employee. Employers and employment lawyers drafting contracts subject to Mauritian law should note both the opportunity confirmed here and the precision required — the Country Annex’s explicit identification of the thirteenth instalment as a statutory gratuity paid “in accordance with applicable laws” was central to the outcome.

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