The case in 60 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.
Five lessons UK employers should take from this ruling
1. Your appraisal process is a legal document, not an HR ritual
The single most important factual element in the Co-op case was the contrast between the claimant’s performance rating and those of her male counterparts, set against an independent finding that her role was at least equivalent. Performance ratings that cannot be defended objectively — with documented criteria, consistent application, and calibration across comparable roles — are now a live tribunal risk. If your managers cannot articulate, in writing, why employee A was rated “partially achieving” and employee B in an equivalent role was rated “outstanding”, your appraisal process is a liability.
2. Job evaluation matters more than job titles
Tribunals look past titles and org charts. A valid job evaluation scheme — one that assesses roles against consistent factors such as skill, responsibility, decision-making authority and impact — is one of the few robust defences to an equal value claim. If your executive structure relies on informal seniority or on “we promoted her recently, so she earns less”, you are offering the tribunal exactly the kind of reasoning that fails the material factor defence.
3. “Recently promoted” is not a free pass on pay
Reducing an executive’s notional salary on the basis that they have just been promoted, when comparable male executives are not subject to the same reduction, is precisely the kind of rationale that collapses under scrutiny. A genuine material factor has to be non-discriminatory in practice, not just in phrasing. If the effect is that women in newly-promoted roles are paid less than men in established roles doing equivalent work, the phrasing does not save you.
4. Treat equal pay grievances as category-one risk from the day they land
The moment an employee raises a written concern about equal pay, several things need to happen in quick succession: legally privileged advice, a protected and genuinely independent grievance process, a clear paper trail, and absolutely no decisions affecting the employee’s employment status that could be characterised as retaliatory. Dismissing, demoting, excluding from succession planning, reducing bonus, or moving to performance management shortly after a protected complaint is the single most common route to a six-figure liability. Sequence matters, and tribunals look at sequence very carefully.
5. Know the time limits — and plan for the October 2026 changes
Time limits in this area are not uniform, and the rules are changing. Three points matter for UK employers in 2026:
- Equal pay claims already have a longer tribunal window than most: six months from the end of employment under section 129 of the Equality Act 2010, with arrears extending back up to six years (five in Scotland).
- Sex discrimination and unfair dismissal claims currently sit at three months less one day from the act complained of. Under the Employment Rights Act 2025, this is expected to extend to six months from October 2026, bringing most employment tribunal claims into line with equal pay.
- Early conciliation through Acas was extended from six weeks to twelve weeks with effect from 1 December 2025, meaning claimants often have materially longer than employers assume before a tribunal claim must actually be filed.
The combined effect is that employees will have considerably more time to reflect, take advice and bring a claim. Your document retention policies should account for a longer exposure window, grievance and disciplinary records should be retained in a form that will withstand scrutiny years after the event, and witness statements and contemporaneous notes should be taken early, while memories are fresh, rather than reconstructed under pressure at hearing.
The real cost is not the damages
£101,000 is a recoverable number. The real cost of a case like this is harder to put on a spreadsheet: ten years of litigation, legal fees on both sides that will dwarf the damages award, senior executive time diverted to evidence preparation, internal disclosure of pay structures, and — for a business built on values such as the Rochdale Principles of openness and cooperation — the reputational dissonance of defending an equal pay claim in open tribunal.
For smaller employers without a public brand to protect, the reputational exposure is proportionately smaller. But the tribunal mechanics are identical. The legal tests are the same. The six-year back-pay window is the same. And the inferential pressure on an employer who cannot document its pay decisions is exactly the same.
What employers should do now — a short compliance checklist
- Commission or refresh a pay audit covering executive, senior management and any heavily gendered job family, with an identified comparator methodology.
- Review every performance rating given in the last three cycles for calibration across gender, with written reasons for any significant disparity.
- Tighten grievance handling so that any complaint mentioning pay, equal treatment or gender is flagged to in-house or external employment counsel on receipt.
- Audit document retention periods against the extended 2026 time limits.
- Train line managers on the material factor defence — specifically, what a tribunal will and will not accept as a non-discriminatory reason for a pay difference.
- Revisit any clause in a settlement agreement that purports to settle equal pay claims; these require careful drafting to be effective.
Speak to our employment team
If you are an employer concerned about your current pay structure, or an employee who has raised an equal pay issue and is unsure what to do next, our employment law team can help. We advise on equal pay audits, tribunal defence, grievance investigations, senior executive exits, and claims arising from detriment after a protected disclosure.
For a free initial consultation, please contact:
Angalee Pandya (Consultant Employment Solicitor)
Email: apandya@thelegalpractice.co.uk
Tel: 020 8903 7017
Disclaimer: This article is commentary on reported employment tribunal proceedings and on the Equality Act 2010 as in force in England and Wales. It is provided for general information only and does not constitute legal advice. Specific circumstances should always be discussed with a qualified employment solicitor. Where figures are quoted for tax years or statutory thresholds, these reflect the position as at April 2026.