Equal pay claims notoriously evolve into marathons, often requiring years of gruelling litigation before a final decision is ever reached. For thousands of workers fighting for fair wages, a massive procedural battle has recently spotlighted a fundamental question: how exactly does the law measure the true value of your role? The answer, it seems, does not just lie in what you do on a minute-by-minute basis, but rather in the exact rules and guidelines your employer writes for you.
Background:
This epic legal battle began back in 2018 and involves an equal pay dispute for nearly 60,000 retail store workers, primarily women, who have argued their work is of equal value to higher-paid distribution centre jobs, positions held predominantly by men.
The litigation took an unexpected turn when the Tribunal issued Judgement 1 in July 2023, followed by a case management order, or CMO. Instead of parsing thousands of individual day-to-day factual disputes, the Tribunal ruled that the employer’s highly detailed corporate training and operational manuals were the primary evidence of job requirements. The employer aggressively fought this approach, appealing for a rehearing that would have delayed the case by a further three years. Despite these challenges, the Tribunal held its ground, issuing the massive 619-page Judgement 2 in July 2024, one which incorporated roughly 750 training documents amounting to some 19,000 pages, alongside later reconsideration judgements delivered in May and July 2025.
Decision:
The Court of Appeal (CoA), however, split its decision, delivering a major victory for the claimants on four out of five grounds, while granting the employer (Tesco) a single, critical procedural win on Ground 3. The core of the dispute involved Sections 64 and 65 of the Equality Act 2010, which define "relevant types of work" and establish that work is of "equal value" if it demands similar levels of effort, skill, and decision-making. The employer argued that classic case law, specifically Shields and Brunnhofer, required the CoA to look exclusively at observed daily activities rather than paper obligations. However, the CoA clarified that, under principles from Beal v Avery Homes and Prest, a job is ultimately defined by what the employer requires the employee to do. As the training manuals in this highly regulated retail environment were intensely prescriptive—explaining exactly how to perform every task to avoid regulatory or criminal liability—they constituted the best evidence of the job's true nature. Therefore, the Tribunal was deemed to have acted lawfully, and the employer's demand for a complete rehearing was rejected.
Implications:
For individuals considering or currently involved in an equal pay claim, this ruling provides immense clarity and a massive strategic advantage. It means that you do not necessarily have to endure invasive, second-by-second monitoring of your daily activities to prove the worth of your labour. If your company enforces rigid, highly detailed operational handbooks and mandatory training manuals, these documents can be leveraged in court to demonstrate the true complexity, effort, and skill your role requires under Section 66's Sex Equality clause.
Furthermore, this decision severely limits the ability of large corporations to use procedural delays to exhaust their workers’ stamina. By validating the use of existing corporate manuals to establish the baseline requirements of a position, the Court has effectively streamlined the fact-gathering phase of equal pay litigation. Employers can no longer easily escape liability under a Section 69 material factor defence by simply downplaying the everyday realities of female-dominated roles if their own corporate blueprints tell a completely different story. If your employer demands operational perfection on paper, then the law will hold them accountable for that value when structuring your pay.
