Ten Years, ÂŁ101,000 and a Cautionary Tale: What the Co-op Equal Pay Ruling Means for UK Employers
The case in 60Â seconds
A former group chief HR officer at the Co-op has been awarded more than £101,000 in damages after a Manchester employment tribunal upheld her claims of unfair dismissal, equal pay and sex discrimination. The ruling, handed down almost a decade after she left the business, is a striking reminder that equal pay disputes do not go away quietly — they compound, they escalate, and they are resolved on the employer’s documentary record, not on the employer’s intentions.
For any UK business with an executive pay structure, a grading system, or a gender pay gap worth talking about, this case is worth reading closely. Not for the headline number — £101,000 is modest by executive-litigation standards — but for what it reveals about how tribunals actually decide these claims in 2026.
What the tribunal found
Three claims succeeded in combination: unfair dismissal, equal pay, and sex discrimination. That combination matters, because each has a different evidential route and a different remedy, and a claimant who can thread all three is operating from a position of considerable strength.
The facts that caught the tribunal’s attention were not, in themselves, exotic. An independent assessment of executive roles concluded that the claimant’s role sat at the same level as, or higher than, comparable male executives. Her salary was nonetheless set below theirs, and she received a lower performance rating than male colleagues performing at what the tribunal accepted was an equivalent level. When she raised a grievance, she was ultimately dismissed.
The Co-op has publicly maintained that the dismissal was substantively fair and that the tribunal identified only a flaw in a historic appraisal process. That is a reasonable characterisation of one part of the outcome — but it is also the clearest possible signal to other employers that historic appraisal processes are now squarely within the risk zone.
The legal framework — briefly, and in plain English
Three pieces of legislation sit behind this kind of claim.
The Equality Act 2010 implies a “sex equality clause” into every contract of employment. Where a woman is doing equal work to a male comparator and is paid less, that clause automatically operates to equalise her terms unless the employer can show the difference is due to a genuine material factor that has nothing to do with sex. “Equal work” covers three categories: like work, work rated as equivalent under a valid job evaluation scheme, and work of equal value. Once a claimant establishes equal work and a pay disparity, the burden shifts to the employer. That burden is heavier than most employers realise.
The Employment Rights Act 1996 governs unfair dismissal. An employee with qualifying service can challenge a dismissal that falls outside the statutory fair reasons or that was handled unfairly in process. Dismissing an employee shortly after they raise a protected grievance — such as one about equal pay — creates an obvious inferential problem for the employer, even where the stated reason for dismissal is something else entirely.
The Equality Act 2010 also prohibits victimisation, which covers detrimental treatment because someone has raised or supported a discrimination complaint. This is often the hidden third claim in equal pay cases, and it tends to be the one that does the real damage to an employer’s credibility at hearing.
Why did this take ten years?
The short answer is that equal pay litigation is slow by design. The longer answer reveals three systemic features that employers should plan around.
First, equal pay claims have a longer compensable window than most discrimination claims. Under section 132 of the Equality Act 2010, arrears of pay or damages in England and Wales can extend up to six years before proceedings are issued in the employment tribunal (five years in Scotland). That means the financial stakes are materially higher than a standard discrimination claim, and the evidential exercise — reconstructing pay structures and comparator roles from years earlier — is correspondingly heavier.
Second, these cases typically bifurcate. Liability is determined first, then remedy. The original liability finding against the Co-op was made in 2018; the compensation hearing followed years later. In between, both sides made further applications, and — in the judge’s own words — the fundamental disputes about what happened continued in the evidence, even on matters that were supposed to be settled.
Third, tribunal backlogs in the mid-2020s have been significant, and complex remedy hearings with expert evidence on pay structures do not progress quickly.
For employers, the practical point is this: the clock on your liability exposure does not reset because a claim is old. If anything, a long-running claim increases pressure on the employer’s document retention, witness availability and institutional memory — all of which favour the claimant.
Read More: What UK Employers Must Know About Equal Pay Risk