Opt-out claims

Billions of pounds in compensation is on the table. Don’t miss out on your share.

You could be part of a group action "opt-out" claim without even knowing it.

And if the case wins or settles, you usually just need to register to receive your compensation. Yet many people don’t know these ‘opt-out’ cases exist.

We want to change that.

We explain opt-out collective actions in plain English, track the cases that matter, and signpost you to trusted, official sources.

So you can check whether you could be due a share of the compensation pot.

Join the Claim is not a law firm. This information is for general guidance only and does not constitute legal advice.

Find an opt-out claim

We are not affiliated with the law firms handling these opt-out claims. Our role is to raise awareness and signpost you to the official claim websites.

Why awareness matters more than people realise

Opt-out claims don’t deliver real justice if only a tiny fraction of eligible people ever hear about them.

In a well-known “boundary fares” rail case*, a settlement worth up to £25 million was approved, but only around £200,000 was claimed. That’s less than 1% of the available funds. The pot was then reduced to £10.2 million, triggering a dispute about what happens to the unclaimed money.

We’re bringing these cases out of the shadows and directing people straight to the official claim websites safely, simply, and without grey tactics. Because collective actions don’t deliver justice when only 1% of people benefit. 

Our mission

We’re here to make sure consumers aren’t left in the dark.

We do that by:

Because cases don’t just need good lawyers — they need the public to actually know they exist.

Opt-out collective actions | Join the Claim explains

There are court cases happening right now in the UK in which a single legal action can represent millions of consumers at once — and most people have no idea they’re included. These are called opt-out collective actions.

The legal stuff

What “opt-out” actually means

Opt-out collective actions exist because big companies can affect millions of people at once.

For some people, it might be a few pounds added to a bill. For others, it can run into hundreds or even thousands over time, especially where charges keep rolling on or unfair costs are built into everyday prices.

Either way, most people face the same problem: taking on a major company alone is expensive, time-consuming, and often feels unrealistic. So the issue goes unchallenged, and the company gets away with it.

Opt-out cases are designed to fix that by allowing one claim to address the problem for everyone affected.

In an opt-out case:

Opt-out claims are designed to level the playing field between everyday consumers and major companies.

What types of cases are usually opt-out?

Opt-outs are only available under a specific legal framework known as collective proceedings, and only for certain types of cases.

UK opt-out claims are currently limited to competition law breaches, such as:

Opt-out collective actions are not the default in the UK. Most group claims are made in a different way – via a Group Litigation Order.

GLO claims require people to opt in by registering their individual claims with the court (their solicitors usually do this for them). 

Need a deep dive?

In our guides and explainers, we unpack the key issues.

Our latest guide explains how the opt-out system works. And why silence is one of its biggest failures.

Latest news

Read the latest opt-out claim news with Join the Claim.

Opt-out collective actions: frequently asked questions

An opt-out collective action is a specific type of legal claim brought on behalf of everyone affected by the same competition law issue. If you meet the eligibility criteria, you are included automatically unless you choose to opt out. You usually only need to take action if compensation becomes available.

It means you don’t have to sign up at the start to be included. If the case succeeds or settles, there’s usually a separate step where eligible people can register to receive compensation.

Not usually. Opt-out often means you’re included in the case, but you typically need to register to receive compensation if the claim wins or settles.

Common examples include overcharging, loyalty penalties, card fee claims, online platform and subscription issues, competition claims, and some utility or pricing cases where many people were affected in a similar way. Currently, opt-out claims are only heard at the Competition Appeal Tribunal (CAT). 

In many opt-out cases, you don’t pay anything to be part of the class. If compensation becomes available, there may be rules about admin costs or fees in the distribution process depending on how the case is run.

The official claim site or administrator should explain this clearly before you register.

Sometimes unclaimed funds are redistributed, reduced, or handled under a court-approved plan. Low take-up can also trigger disputes about where the remaining money should go. This is one reason public awareness matters so much.

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