Shein Is Fighting Two Major Lawsuits in 2026 UK Copyright War and US Tariff Class Here Is What Shoppers Need to Understand

Prepared by the AllAboutLawyer.com Editorial Team and reviewed for factual accuracy against Reuters, The Next Web, WWD, and court filings in Cook County Circuit Court. Last Updated: May 12, 2026

Online fast-fashion platform Shein accused Temu of copyright infringement “on an industrial scale” as a trial opened at London’s High Court on Monday, May 11, 2026 — while separately, US shoppers have filed class action lawsuits accusing both Shein and Temu of illegally overcharging customers through unlawful tariff price hikes.

These are two completely different legal battles playing out at the same time. One is a corporate war between two giant fast-fashion rivals over stolen photos. The other directly affects millions of everyday shoppers in the United States who paid inflated prices on Shein and Temu orders last year. This article explains both — and what, if anything, you can do right now.

Quick-Facts: Shein Legal Battles 2026

Field	Detail
UK Lawsuit	Shein v. Temu (Whaleco UK Ltd.) — London High Court, Business and Property Courts
US Consumer Class Action	Russell v. Shein & Russell v. Temu — Cook County Circuit Court, Illinois
UK Allegation	Copyright infringement of approx. 2,300 product photographs
US Allegation	Violation of the Illinois Consumer Fraud Act — unlawful tariff-related price gouging
UK Trial Status	Two-week trial opened May 11, 2026 — ruling expected no earlier than late summer 2026
US Case Status	Active litigation — no settlement reached, no claim form available
Who Is Affected (US)	US customers who purchased from Shein or Temu between February 2025 and February 2026
Lead Law Firm (US)	McGuire Law P.C., Chicago — Joseph M. Dunklin and Myles McGuire
Settlement Available?	No — both cases are in active litigation phase
Last Updated	May 12, 2026

What Is the Shein vs. Temu UK Lawsuit About? Shein v. Whaleco UK Limited, London High Court

Shein alleges Temu used thousands of its photos to advertise copies of Shein’s own-brand clothing on its website, to “piggy-back” on a more established competitor. The core claim is straightforward: Shein’s employees created these product images, Shein owns the copyright, and Temu allegedly used them without permission to launch competing product pages faster and cheaper than it could have otherwise done.

Shein’s barrister Benet Brandreth told the court that copying the images allowed Temu to publish complete product pages faster and at lower cost than the platform would otherwise have managed. In other words, Shein says Temu got a shortcut — using Shein’s creative work to sell knockoff versions of Shein’s own products.

Temu has effectively abandoned its defence of the disputed images, leaving the court to focus on damages, injunctive relief, and the broader competition arguments. That is a significant development. When a defendant drops its defence to the core allegation, it shifts the trial’s focus from whether infringement happened to how much Temu should pay.

Temu — owned by PDD Holdings — has counter-claimed, seeking damages after it had to remove thousands of product listings when Shein obtained an injunction. Temu’s position is that this entire litigation is a competitive weapon, not a genuine intellectual property claim.

For context on how intellectual property lawsuits in the fashion industry typically play out, see the AllAboutLawyer.com guide to consumer class action lawsuits.

Temu’s Counter-Attack: Shein Accused of Locking Out Competitors

Temu is not sitting quietly. It has filed its own counter-claim that could reshape how fast-fashion supply chains operate in the UK.

Temu hit back with a counterclaim alleging Shein broke British competition law by tying suppliers of fast-fashion products to exclusive agreements — a claim it values at £4.2 million ($5.5 million) — which Shein denies.

The argument is that Shein effectively controls access to the Chinese manufacturing workshops that produce the ultra-cheap clothing both platforms sell. If Shein locks those workshops into exclusive contracts, no competing platform can source the same types of products — which Temu argues is an anti-competitive restraint of trade under UK law.

That part of the case — Temu’s competition counter-claim against Shein — is due to go to a separate trial next year. So even after the current two-week trial concludes, this legal war will continue well into 2027.

Related article: Atlantic Kia Lawsuit, Did the West Islip Dealership Inflate Your Car Price $8K+ and Forge Your Documents?

Are You Part of the Shein vs. Temu UK Case?

This case is between two corporations — Shein and Temu. Individual shoppers are not parties to the UK lawsuit and there is no consumer claim form to file. However, the outcome matters to you if you use either platform, because the court could impose injunctions that affect which products remain available on Temu in the UK, and the competition ruling could influence pricing and supplier practices across both platforms globally.

The US Consumer Class Action: Did Shein Overcharge You on Tariffs?

This is the case that directly affects everyday shoppers, and it is worth understanding fully.

The complaints, filed in Cook County Circuit Court by McGuire Law in March 2026 on behalf of plaintiff Lola Russell, accuse both platforms of violating the Illinois Consumer Fraud Act by raising prices far beyond what the tariff costs warranted and then failing to return the money after the legal basis for those tariffs was struck down.

Here is what happened. When the Trump administration imposed IEEPA tariffs on Chinese imports last April, both Shein and Temu publicly announced price adjustments for US customers, explicitly telling shoppers the increases reflected the cost of the new duties. After the de minimis exemption for under-$800 shipments was eliminated, tariffs on Chinese imports peaked at 145%. Bloomberg News tracked the price changes in real time, finding that some products rose by as much as 377%.

Then the legal ground shifted. The Supreme Court ruled 6-3 in February 2026 that Trump had exceeded his authority under IEEPA in imposing those tariffs. The following month, the Court of International Trade ordered CBP to begin processing $166 billion in refunds to importers.

The consumer lawsuits argue that if Shein and Temu collect those government refunds, they will have been paid twice for the same cost — once by shoppers through higher prices, and again by the federal government through the refund process. That legal theory is called “double recovery,” and it is driving a broader wave of similar litigation across the retail industry against brands including Costco, Lululemon, and EssilorLuxottica.

Are You Part of the US Shein or Temu Class Action?

You may be part of this class if:

• You purchased items online through Shein or Temu during the 12 months from February 2025 to February 2026.
• You paid inflated prices that both platforms publicly attributed to tariff costs imposed on Chinese imports.
• You are located in Illinois or elsewhere in the United States — plaintiffs are seeking to expand the actions to include perhaps millions of Temu and Shein customers in Illinois and throughout the US.

You are likely NOT included if:

• You only purchased from Shein or Temu before February 2025, before the tariff price hikes were announced.
• You purchased from a seller on a third-party marketplace not operated by Shein or Temu directly.

What should you do right now?

There is no claim form to file yet — this case is in its early litigation stage. Most class members are automatically included if the case is eventually certified as a class action. The practical steps right now are:

• Save any order records, receipts, or Shein/Temu emails from February 2025 through February 2026 that show the prices you paid and any messaging about tariff-related price changes.
• Monitor the case for updates — if a settlement is reached, AllAboutLawyer.com will publish a full guide the moment a claim form becomes available.
• If your individual losses are significant and you want to pursue your own claim, consider a free legal consultation with a consumer rights lawyer to understand your options before the case is certified.

What Are Plaintiffs Seeking in the US Shein Tariff Lawsuit?

The lawsuits seek to make Temu and Shein pay for allegedly violating the Illinois Consumer Fraud Act and under counts of unjust enrichment. The complaints do not name a specific damages figure, but given the scale of the price increases — some products rose by as much as 377% — and the potential class size of millions of US shoppers, the total damages sought could reach into the hundreds of millions of dollars if the cases survive to trial.

Legal experts describe the lawsuits as a long shot. Consumer class actions against retailers for passing on government-imposed costs face high bars for establishing the kind of deceptive conduct required under consumer fraud statutes. Proving that Shein or Temu misrepresented the necessity of their price increases, rather than simply responding to real cost pressure, will be central to whether the cases survive early motions to dismiss.

The Bigger Picture: Shein and Temu Under Global Regulatory Fire

The UK trial and US class actions are not happening in isolation. Both companies are facing intensifying scrutiny on multiple fronts simultaneously.

The UK Competition and Markets Authority has been investigating both companies on consumer-protection and pricing-transparency grounds since 2024. The Financial Conduct Authority has separately reviewed Shein’s IPO disclosures.

The London case is the latest in a multi-jurisdictional litigation war between the two Chinese-founded platforms, which have also sued each other in the US, the EU, and Singapore.

The removal of a US customs exemption on low-value e-commerce parcels last year — with the European Union set to follow in July — could weigh on growth for both platforms. Both Shein and Temu built their US business model on the de minimis rule that allowed packages under $800 to enter the country duty-free. That model is now gone, and the legal battles playing out in London and Chicago are part of the fallout.

Shein and Temu Lawsuit Timeline 2026

Milestone	Date
Shein files UK lawsuit against Temu	2024
Temu files competition counter-claim (UK)	February 2025
Trump IEEPA tariffs imposed on Chinese imports	April 2025
Shein and Temu announce US price increases	April 2025
Supreme Court rules IEEPA tariffs unconstitutional	February 2026
US consumer class actions filed in Cook County Circuit Court	March 2026
UK copyright trial opens at London High Court	May 11, 2026
UK copyright trial scheduled to conclude	Late May 2026
UK copyright ruling expected	No earlier than late summer 2026
UK competition counter-claim trial	TBD — scheduled for 2027
US class action next hearing	TBD — pending early motions

Frequently Asked Questions

Is there a class action lawsuit against Shein? 

Yes — two, in fact. Coordinating class action complaints were filed in Cook County Circuit Court by McGuire Law on behalf of plaintiff Lola Russell, accusing Shein and Temu of violating the Illinois Consumer Fraud Act by hiking prices to pass on the cost of tariffs later ruled unconstitutional by the Supreme Court.

Do I need to do anything right now to be included?

 No. If the court certifies these cases as class actions, US shoppers who purchased from Shein or Temu between February 2025 and February 2026 will likely be automatically included. Save your order records and watch for updates — a settlement or claim portal does not yet exist.

When will a settlement be reached in the Shein tariff case?

 TBD — the cases are in early litigation. There is no settlement or resolution timeline available. Consumer class actions of this complexity typically take one to three years to reach a settlement, if they survive motions to dismiss.

Can I file my own lawsuit against Shein instead of joining the class action?

 You can, but it would require retaining your own attorney and pursuing the case individually. For most consumers, joining the class action — if it is certified — is the practical path. Consult a class action lawsuit attorney if your individual losses are large enough to warrant separate consideration.

How will I know if the Shein tariff lawsuit settles?

 AllAboutLawyer.com will publish a full settlement guide the moment a claim form becomes available. You can also monitor the Cook County Circuit Court docket for case updates. The lead attorneys are Joseph M. Dunklin and Myles McGuire of McGuire Law P.C., Chicago.

Does the UK Shein vs. Temu lawsuit affect shoppers?

 Not directly — that case is between two companies fighting over copyright ownership and supplier contracts. But if the court orders Temu to pull products or pay significant damages, it could affect product availability and pricing on both platforms in the UK and potentially globally.

Is Shein itself being sued, or just suing Temu? 

Both. Shein itself is the target of lawsuits from brands and designers who have accused the company of stealing their designs and selling copycat items on its e-commerce site. At the same time, Shein is suing Temu. And US consumers are now suing Shein separately over the tariff price hikes. Shein is simultaneously a plaintiff, a defendant, and the subject of regulatory investigations across multiple jurisdictions.

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Legal claims and outcomes depend on specific facts and applicable law. For advice regarding a particular situation, consult a qualified attorney.