In a class action, one lawsuit represents a large group of people who suffered similar, usually small, harm, and everyone in the group typically shares a settlement. In a mass tort, each injured person files their own individual claim, and those claims are often grouped together for efficiency, but each person’s payout is based on their own injuries. Class actions usually pay small, similar amounts. Mass torts can pay much more, and amounts vary widely from person to person.
The difference matters if you have been harmed by a drug, product, chemical or company practice. It affects how you join, what you need to prove, how long it takes and how much you might receive.
What Is a Class Action?
A class action is a single lawsuit filed by one or a few named plaintiffs on behalf of a larger group, the “class,” who were harmed in the same way. A judge must certify the class, meaning the court agrees the claims are similar enough to be handled together.
Class actions are common for:
- Data breaches
- Hidden fees and overcharges
- False advertising and mislabeled products
- Privacy violations
- Securities fraud
- Wage and hour violations
Class members often don’t need to do anything until a settlement is reached, and then they file a claim to receive payment. If they do nothing, they are usually still bound by the result.
What Is a Mass Tort?
A mass tort involves many people who were harmed by the same product or conduct, but whose injuries and circumstances differ significantly. Because each person’s damages are unique, the cases usually can’t be handled as a class. Instead, each person files an individual lawsuit.
Mass torts are common for:
- Dangerous drugs, like the Ozempic and Depo-Provera litigation
- Defective medical devices
- Toxic exposure, like firefighting foam or weed killers
- Consumer products alleged to cause cancer, like hair relaxers
- Large disasters
How MDLs Fit In
When thousands of similar individual lawsuits are filed in federal courts around the country, the Judicial Panel on Multidistrict Litigation may combine them into an MDL before one judge. The MDL handles shared issues, like evidence about the product and expert testimony, so the same work isn’t repeated in hundreds of courts.
An MDL is not a class action. Each case keeps its own identity. If cases don’t settle, they can be sent back to their original courts for individual trials.
Key Differences at a Glance
| Feature | Class action | Mass tort |
|---|---|---|
| Number of lawsuits | One lawsuit for the whole class | Many individual lawsuits |
| Type of harm | Similar, often financial and small per person | Personal injuries that vary by person |
| Your involvement | Often minimal until filing a claim | You are an individual plaintiff with your own case |
| Need your own lawyer? | Usually not; class counsel represents everyone | Yes, typically |
| Proof required | Usually just showing you are in the class | Proof of exposure, injury and damages |
| Payout | Often small and similar | Based on your injuries; can be substantial |
| Opt out? | You can opt out to sue individually | You are already individual; you decide whether to accept settlement offers |
| Typical timeline | Often one to several years | Often several years |
How Class Action Payouts Work
Class settlements create a fund. After attorney fees, costs and administration expenses, the remaining money is divided among class members who file valid claims, usually by a formula. Payments are often modest, from a few dollars to a few hundred, though cases with documented losses or smaller classes can pay more.
How Mass Tort Payouts Work
Mass tort settlements, sometimes called global or inventory settlements, typically set aside a total amount and use a matrix or points system to assign values to each claimant. Factors usually include:
- Type and severity of injury
- Need for surgery or ongoing treatment
- Permanence of the harm
- Age at injury
- Strength of proof of use or exposure
- Other risk factors that could have caused the injury
Two people in the same mass tort can receive very different amounts. Someone who needed major surgery and suffered permanent effects will usually receive much more than someone with a milder injury.
Bellwether Trials
In mass torts, courts often hold bellwether trials, test cases chosen to represent typical claims. Their outcomes help both sides estimate the value of the remaining cases. Strong plaintiff wins often push defendants toward settlement. Defense wins can lower settlement values or slow negotiations.
Hybrid Situations
Some litigation involves both. For example, a company might face a class action for economic losses, like people who paid for a defective product, and a mass tort for people who were physically injured by it. The Roundup litigation shows another variation: a proposed class settlement was designed to cover people with injuries and future claimants, which is less common and often more controversial.
Which One Applies to You?
Ask yourself what kind of harm you suffered:
- Financial or privacy harm, similar to many others? Likely a class action. Watch for settlement notices and file a claim.
- Physical injury or illness from a product, drug or exposure? Likely a mass tort. Talk to a lawyer about filing an individual claim.
Fees in Each Type
In class actions, class counsel’s fees are approved by the court and paid from the settlement fund before distribution. You usually don’t sign a fee agreement. In mass torts, you sign a contingency agreement with your own lawyer, typically a percentage of your recovery. Some MDLs also include common benefit fees, a portion of each recovery that compensates lawyers who did shared work for all plaintiffs.
Why Personal Injury Cases Rarely Become Class Actions
Courts certify class actions only when common issues dominate over individual ones. In injury cases, the big questions differ for each person: how much of the product they used, what other risk factors they had, when symptoms started, how severe the injury is and what treatment they needed. Those differences usually prevent class certification. That is why drug and product injury cases almost always proceed as mass torts, while cases about overcharges or data exposure, where the harm is similar for everyone, are better suited to class actions.
What Being a Mass Tort Plaintiff Involves
If you join a mass tort, expect to:
- Sign a fee agreement with a lawyer
- Provide medical records and proof of product use or exposure
- Complete a plaintiff fact sheet, a detailed questionnaire about your history and injuries
- Keep your lawyer updated about your health, address and contact information
- Wait, often for years, while the MDL works through shared issues
- Decide whether to accept any settlement offer when one is made
Most mass tort plaintiffs never testify in court. Only a small number of cases are chosen for bellwether trials.
What Being a Class Member Involves
Class membership is much more passive. You might receive a notice by mail or email. You can file a claim, object, opt out or do nothing. If you file, you will usually answer a few questions and maybe upload proof. Then you wait for the court to approve the settlement and the administrator to send payments. You generally won’t sign a fee agreement or provide extensive records.
Settlement Participation Thresholds
Mass tort settlements often require a high percentage of eligible plaintiffs, sometimes 90 percent or more, to agree before the deal takes effect. This protects the defendant from paying a large amount while still facing many lawsuits. It also means plaintiffs may feel pressure to accept. If you are offered a mass tort settlement, ask your lawyer to explain your estimated payment, how it was calculated and what happens if you decline.
Common Benefit Fees Explained
In large MDLs, a small group of lawyers called the plaintiffs’ steering committee does much of the shared work, like reviewing millions of documents and hiring experts. To pay for that work, courts often set aside a percentage of every plaintiff’s recovery as a common benefit fee. This usually comes out of your lawyer’s fee or your recovery, depending on the court’s order. Ask your lawyer how common benefit fees affect your net payment.
Deadlines
Class actions have claim deadlines and opt out deadlines set by the court. Missing a claim deadline usually means no payment. Mass torts are governed by each state’s statute of limitations for injury claims. Missing that deadline can bar your case entirely, even if a settlement is announced later. If you think you have a mass tort claim, don’t wait for a settlement before talking to a lawyer.
A Quick Example
A company sells a blood pressure medication. Some people allege the company overcharged by misrepresenting the drug’s benefits. Others allege it caused kidney damage. The overcharge claims might proceed as a class action, with each purchaser receiving a modest payment. The kidney injury claims would likely be individual cases in a mass tort, with payouts based on the severity of each person’s kidney damage. A person who bought the drug but wasn’t injured would participate in the class action. A person with kidney failure would file an individual claim and might receive a far larger amount.
Signs You Should Talk to a Mass Tort Lawyer
- You were diagnosed with a serious illness after using a drug, device or product that is in the news for lawsuits
- You worked with or lived near a chemical or substance linked to illness
- A doctor mentioned that a medication or product may have contributed to your condition
- You needed surgery or ongoing treatment for a condition linked to a product
- You lost a family member to an illness connected to a product or exposure
Initial consultations are usually free, and mass tort lawyers generally work on contingency.
What to Do Next
If you received a settlement notice about a financial or privacy issue, you are probably part of a class action and can file a claim on the official website. If you were physically harmed by a drug, device or exposure, talk to a mass tort lawyer about an individual claim, and ask about your state’s filing deadline.
Sources
- Judicial Panel on Multidistrict Litigation
- United States Courts: Federal Rule of Civil Procedure 23
- Federal Judicial Center: MDL Resources
This article is for general information only and is not legal advice. Laws change and every case is different, so speak with a licensed attorney in your state about your own situation.
Frequently Asked Questions
Who pays the lawyers in a class action?
Class counsel’s fees are approved by the court and paid from the settlement fund before money is distributed to class members.
Are mass tort settlements public?
Total amounts are sometimes announced, but individual payments and matrix details are often confidential.
Can I opt out of a mass tort settlement?
Mass tort settlements are usually voluntary for each plaintiff. You can decline, though some agreements affect how your case proceeds if you do.
How long do mass torts take?
Often several years, from early filings through expert rulings, bellwether trials and settlement administration.
Can I be in a class action and a mass tort at the same time?
Sometimes, if the same conduct caused both financial harm covered by a class action and a personal injury pursued individually.
What is the main difference between a mass tort and a class action?
A class action is one lawsuit for a group with similar harm. A mass tort is many individual lawsuits by people with different injuries from the same cause.
Do mass torts pay more than class actions?
Often yes per person, because payouts reflect individual injuries. Class action payments are usually smaller and similar for everyone.
Is an MDL a class action?
No. An MDL groups individual cases for shared pretrial work, but each case remains separate.
Do I need a lawyer for a class action?
Usually not. Class counsel represents the class, and you can file claims yourself.
Do I need a lawyer for a mass tort?
Typically yes, because you bring your own individual claim and must prove your injury and exposure.
What is a bellwether trial?
A test trial of a representative case in a mass tort, used to gauge how juries respond to the evidence.
