In brief: The Tesco equal pay lawsuit is a group legal action launched in 2018 by current and former store workers — predominantly women — who claim they were paid up to £3 an hour less than male-dominated distribution centre staff for work of equivalent value. The case, potentially worth up to £4 billion in back pay, is still ongoing as of 2026, with appeals pending at the Court of Appeal.
What Is the Tesco Equal Pay Lawsuit?
The Tesco equal pay claim is a landmark legal battle aimed at holding the supermarket accountable for allegedly underpaying its store staff for decades. It challenges the longstanding pay difference between store roles — often filled by women — and distribution roles, typically occupied by men and better paid, arguing that both types of work are of equal value and the existing pay gap is unfair.
This is not a single lawsuit in the conventional sense. It is a large-scale group action, where tens of thousands of individual workers bring claims that share the same core legal argument. The case was launched in 2018 by law firms Harcus Parker and Leigh Day and now involves approximately 49,000 employees, with a reported potential value of £4 billion.
Why Store Workers Say They’re Underpaid
The central complaint is straightforward: Tesco pays its distribution centre staff up to £3 an hour more than its store staff, and legal experts believe that in-store and distribution centre staff perform jobs of equal value and therefore deserve equal pay.
The pay gap has historically tracked along gender lines — because store roles are predominantly held by women, while warehouse roles are predominantly held by men, the disparity amounts to more than a contractual disagreement. It becomes a sex discrimination matter under UK law. If the action succeeds, it could lead to a significant number of the company’s workers receiving back pay of up to £20,000 per person.
The Legal Foundation: Equality Act 2010
The claim rests on Section 66 of the Equality Act 2010, which requires employers to pay employees equally for work of equal value regardless of gender. The group claims Tesco breached this duty by paying store workers up to £3 an hour less than warehouse and distribution centre staff.
Workers don’t need to show they do identical work — only that their work is of equivalent value when assessed across factors such as effort, skill, decision-making, and working conditions. That assessment process is genuinely complex, which explains why the case has passed through multiple tribunal stages over several years.
A Timeline of the Case (2018–2026)
- 2018 — Claims filed. The Tesco Action Group committee was formed, and that same year, the first claims were filed in the Employment Tribunal and the High Court.
- 2019 — Venue settled. The proceedings moved to the Employment Tribunal rather than the High Court — a meaningful shift for claimants, since the Employment Tribunal does not typically require the losing party to pay the winner’s legal costs.
- 2020 — Disclosure order. A crucial disclosure order forced Tesco to reveal the pay and work structures within its distribution centres. Tesco attempted to appeal this order but was ultimately unsuccessful.
- 2021 — European Court ruling. The case gained international attention when a ruling from the Court of Justice of the European Union confirmed that store and warehouse jobs could be compared for equal pay purposes.
- 2022–2023 — Stage 2 hearings. Sample claimants provided detailed evidence in an equal value hearing focused on job descriptions and work demands. The tribunal issued judgments broadly favourable to the claimants and critical of Tesco’s evidence.
- Late 2023 — Final hearing pathway confirmed. An employment tribunal decided to move directly to a final hearing on six key test cases — a streamlined approach that, according to Harcus Parker, is likely to shorten the litigation process by several years.
- 2024 — Defence hearing ordered. A case management ruling at the start of 2024 directed that a defence hearing proceed in 2025. The Employment Appeal Tribunal upheld this decision, stressing the need to resolve the litigation without further delay. A detailed Stage 2 judgment followed in July 2024.
- July–August 2025 — EAT issues mixed ruling. Tesco won part of its appeal on 31 July 2025 when an Employment Appeal Tribunal judge agreed the original panel had made errors in its comparison of female and male employees’ roles.
- July–December 2025 — Court of Appeal escalation. Tesco returned to court seeking to overturn a legal decision ahead of a final trial, with the supermarket’s legal team arguing that earlier tribunal rulings misunderstood its case.
- Early 2026 — Appeals expedited. The Court of Appeal granted permission on related appeals and expedited them for early March 2026. Stage 2 work at the Employment Tribunal level remains paused pending those decisions. Independent experts have requested an extension until 31 July 2026 to prepare their report to the tribunal.
The Key Legal Arguments — Both Sides
The claimants argue that store work — involving customer interaction, food handling, stock management, operating tills, and working varied shift patterns — is of equal value to what happens in warehouses and distribution centres. They contend the pay gap reflects entrenched gender bias rather than any genuine difference in what the work is worth.
Tesco’s position has two strands. First, the company maintains that the roles are genuinely different in their demands. Second, it has pursued what is known as a material factor defence: the argument that higher warehouse pay reflects legitimate market pressures — specifically, that Tesco had to pay more to recruit and retain distribution staff in a competitive labour market, and that gender played no part in that decision.
The material factor defence argues that pay differences stem from legitimate business reasons rather than sex discrimination. In support of this, Tesco applied to introduce expert economic evidence from economists arguing that market forces influenced pay rates. Whether that expert evidence can be admitted has itself become a significant legal dispute, with the Employment Appeal Tribunal sending the question back to the Employment Tribunal for reconsideration.
The July 2025 EAT Ruling and Court of Appeal Escalation
The most consequential recent development came in the summer of 2025. Tesco won part of its appeal on 31 July 2025 when an Employment Appeal Tribunal judge agreed the panel had made mistakes in its comparison of female and male employees’ roles.
The EAT identified specific errors in the original tribunal’s decision: it had wrongly decided that performance targets placed no demands on comparators, concluded that time-of-day working was irrelevant, dismissed requirements of mental arithmetic, and stated it saw nothing material relating to health and safety risks. These were fact-finding errors at the Stage 2 level, and the EAT sent several matters back for reconsideration.
That said, the ruling was not an outright win for Tesco. The Employment Appeal Tribunal remitted the question of expert economic evidence back to the same tribunal, which must now apply the correct legal test — assessing whether expert testimony is “reasonably required” to resolve the proceedings.
Tesco then appealed parts of the EAT’s July 2025 judgment to the Court of Appeal, with the litigation’s central issue being whether the Employment Tribunal applied the correct legal test for determining “work” — specifically, whether it wrongly assessed what employees did by relying on generic training materials rather than examining actual job practice.
The case is now operating on two tracks simultaneously: reconsideration of specific findings at the tribunal level, and legal scrutiny of the overall approach at the Court of Appeal.
How the Tesco Case Compares to Other Supermarket Claims
Tesco is far from alone. A sustained wave of equal pay claims has moved through the UK retail sector, all built on the same core argument: predominantly female store workers are paid less than predominantly male warehouse counterparts for work of equal value.
| Retailer | Status (as of early 2026) |
|---|---|
| Tesco | Court of Appeal appeals pending; Stage 2 stayed |
| Asda | Most advanced; equal value partially established |
| Sainsbury’s | Ongoing tribunal proceedings |
| Morrisons | Ongoing; similar claim structure |
| Next | Lost equal pay case in 2024; appealing payout (~£30m+) |
| Co-op | Claim proceeding |
Of the supermarket cases, the furthest advanced is Asda, where media reports suggest claimants have established that their jobs may be compared to those of warehouse or depot colleagues and that at least some are of equal value.
The Next ruling carries particular weight as a precedent. The tribunal found that the two groups of employees were doing work of equal value, but Next had been paying warehouse staff higher rates based on market forces — a ruling that could result in the retailer paying out over £30 million in compensation. Next is appealing, but its tribunal loss on near-identical facts has given Tesco claimants a concrete reason for confidence.
Who Is Eligible to Join the Tesco Equal Pay Claim?
Both men and women can join the claim as long as they meet the eligibility criteria. While the pay disparity is likely attributable to structural gender discrimination, the claim itself is open to any store worker who was paid the standard hourly store rate.
You may be eligible if:
- You currently work as a Tesco store worker in England, Wales, or Scotland on an hourly rate
- You have worked in a Tesco store in England, Wales, or Scotland at any point in the last six years on an hourly rate
- Your role was store-based rather than in a distribution centre
Former employees can still join — if you worked at a Tesco store in England or Wales at any time in the last six years, you may qualify. The six-year window is measured from the date a claim is filed, not today, so the sooner a claim is registered, the more potential back pay it may cover. Pursuing a legal right to equal pay is protected under UK employment law — an employer cannot lawfully penalise a worker for making a claim.
How Much Compensation Could Claimants Receive?
Individual payouts would vary based on how long someone worked at Tesco and the pay gap applicable during that period. Store workers can potentially claim up to six years of lost pay, with many current claims estimated at over £10,000 — roughly £1,700 for every year worked, up to the six-year maximum.
These figures are projections, not guarantees. Compensation will only be assessed if the tribunal finds in the claimant’s favour on both equal value and the material factor defence. The case has not reached that stage yet.
How to Join the Claim
The process is designed to be accessible, even for those who have never taken legal action before:
- Check eligibility — confirm you work or have worked in a Tesco store in England, Wales, or Scotland within the last six years on an hourly rate
- Register your interest — contact Harcus Parker Employment or Leigh Day directly, or use a regulated claim connector service
- ACAS Early Conciliation — before a formal claim is filed, ACAS is notified as a first step, and early resolution between you and Tesco may be attempted
- File the tribunal claim — if conciliation does not produce a settlement, a formal claim goes to the Employment Tribunal
- Join the group action — your claim proceeds alongside the test cases currently before the tribunal
Most firms handling this action work on a no-win, no-fee basis, so you pay nothing unless the claim succeeds. Read any agreement carefully before signing and confirm the firm is regulated by the Solicitors Regulation Authority (SRA).
What Happens Next?
The Court of Appeal expedited related appeals for early March 2026. Stage 2 work at the Employment Tribunal remains paused pending those decisions, and independent experts have requested an extension until 31 July 2026 to prepare their report.
In practical terms, this means a final resolution is still some way off. The Court of Appeal must first rule on the legal questions Tesco has raised about how equal value should be assessed. Once those appeals are decided, the independent expert report can be completed, the Stage 2 process will resume, and the case will eventually move toward a full final hearing — at which a tribunal will rule definitively on whether store and distribution work are of equal value. If that finding favours claimants, Tesco would then need to succeed with its material factor defence to avoid liability. Only if that defence also fails would the tribunal turn to calculating compensation.
Seven years into the litigation, the case has survived repeated attempts to slow or stop it. Whether that persistence translates into a win for the tens of thousands of workers involved will likely depend on what the Court of Appeal decides in the months ahead.
This article is for informational purposes only and does not constitute legal advice. If you believe you have a claim, consult a regulated employment solicitor or contact one of the law firms named above.
