Largest Class Action Settlements In U.S. (2025)

Largest Settlement in U.S. History

The largest settlement in U.S. history was the Big Tobacco case, with a payout of $206 billion. This 1998 settlement helped states cover the healthcare costs of smoking-related diseases. Another large case was the BP Gulf of Mexico oil spill, where BP paid $20 billion in 2016 after the massive environmental disaster caused by the Deepwater Horizon spill. These settlements show how class action lawsuits can make companies take responsibility for their actions.

Volkswagen's Dieselgate Settlement

Volkswagen paid $14.7 billion in the "Dieselgate" scandal after admitting to using software that cheated emissions tests in diesel cars. This caused environmental harm and misled consumers. The settlement paid back affected car owners and helped fund environmental cleanups.

Financial and Securities Fraud Settlements

Several class action settlements happened because companies misled investors, causing them to lose a lot of money. Enron, once a big energy company, collapsed and had to pay $7.2 billion in a settlement. WorldCom, a large telecom company, also paid $6.1 billion after its accounting fraud made investors lose money. These cases show that when companies deceive people with false financial information, they can be forced to pay huge amounts in settlements to those affected.

Visa/Mastercard Antitrust Settlement

In some cases, companies broke antitrust and consumer protection laws, leading to large settlements. For example, Visa and Mastercard paid $6.2 billion for unfair credit card fees, compensating businesses that were affected. These settlements show how important it is for companies to be clear and fair in their financial dealings. They serve as a reminder that transparency is key, and companies must follow rules to protect both consumers and other businesses from unfair practices.

Product Liability and Health Impact Settlements

Health-related settlements are also prominent in the largest class action cases. The Fen-Phen diet drug case settled for $3.75 billion due to the drug's dangerous side effects, which caused heart problems for thousands of users. Another health-related settlement was for breast implants, with a $3.2 billion payout to patients who suffered complications from defective implants.

Conclusion

Class action settlements help people who were harmed by corporate wrongdoing and make companies take responsibility. These cases deal with problems like environmental damage, financial fraud, and unsafe products. The largest class action settlements in U.S. history have changed industries and provided justice to millions. These settlements not only give money to those affected but also push companies to fix their practices, making sure they are held accountable and preventing harm in the future.