Largest Class Action Settlements in History (2026 List)

The largest class action settlements in history are 3M’s PFAS deal with public water systems ($10.3 billion present value, up to $12.5 billion, approved 2024) and Volkswagen’s $10.03 billion diesel buyback fund (2016). Enron’s $7.2 billion is the record for a securities case. The famous $206 billion tobacco deal is bigger than all of them, but it was never a class action: 46 state attorneys general sued, not a class of consumers. We checked every amount below against a court record, the official administrator, a government agency, or the law firm that ran the case, and every link sits in the Sources list at the bottom.

A class action lawsuit is one where a few plaintiffs sue on behalf of everyone with the same claim, and a judge must approve any deal as fair before it binds the group. That definition separates the first table from the second. For the basics, see what a class action is and how it works.

Largest class action settlements ranked by dollar amount

These 17 cases were resolved as court-approved class deals. Year is the year of final court approval.

Rank	Defendant	Amount	Year	What it covered
1	3M	$10.3 billion (up to $12.5 billion over 13 years)	2024	PFAS “forever chemicals” in about 12,000 public water systems
2	Volkswagen	Up to $10.03 billion	2016	Buybacks and cash for about 475,000 2.0 liter “clean diesel” owners
3	BP	Uncapped (BP estimated $7.8 billion)	2012	Economic and property losses from the Deepwater Horizon oil spill
4	Enron’s banks, auditors, directors	$7.2 billion	2008	Shareholder losses from the Enron accounting fraud
5	WorldCom’s underwriters, auditor, directors	$6.19 billion	2005	Investor losses from WorldCom’s hidden expenses
6	Visa, Mastercard and banks	$5.54 billion	2019	Merchants who paid inflated card swipe fees, 2004 to 2019
7	Tyco International	$3.2 billion	2007	Investor losses from executive looting and accounting manipulation
8	Blue Cross Blue Shield	$2.8 billion	2025	Doctors and hospitals who alleged underpayment through market division
9	NCAA and Power Five conferences	$2.8 billion	2025	Back pay for about 390,000 college athletes denied NIL income
10	Blue Cross Blue Shield	$2.67 billion	2022	Subscribers and employers who paid premiums, 2008 to 2020
11	NFL	Uncapped ($1.73 billion in awards so far)	2015	Retired players with brain injury diagnoses
12	Syngenta	$1.51 billion	2018	Corn farmers hurt when China rejected U.S. corn over Viptera seed
13	Anthropic	$1.5 billion	2026	Authors whose books were pirated to train AI models
14	Wells Fargo	$1 billion	2023	Shareholders misled about regulatory compliance
15	NAR and brokerages	Over $1 billion combined (NAR alone $418 million)	2024	Home sellers who paid buyer agent commissions
16	Facebook (Meta)	$725 million	2023	User data shared with third parties, including Cambridge Analytica
17	Equifax	Up to $425 million consumer fund	2019 (agreed)	Consumers hit by the 2017 Equifax data breach

Three rows need a caveat. The 3M figure is a present value paid over 13 years. BP’s and the NFL’s deals have no cap, so the final bill depends on claims: when we checked the NFL program’s official site in September 2026, payable awards stood at $1,725,787,775, well past the league’s early estimates. And the Wells Fargo row is the investor case, not a consumer refund; our Wells Fargo page covers the consumer cases.

Bigger payouts that were not class actions

The biggest legal payouts in U.S. history came from government lawsuits, not private groups of consumers. Most “biggest class action settlements” lists online mix them together, which is how the 1998 Tobacco Master Settlement Agreement ends up called the largest class action ever. It wasn’t. States sued to recover Medicaid costs of treating smokers, and the money goes to state treasuries.

Deal	Amount	Year	Who sued
Tobacco Master Settlement Agreement (Philip Morris, R.J. Reynolds, Brown & Williamson, Lorillard)	About $206 billion over the first 25 years	1998	46 state attorneys general
Opioid distributors (McKesson, Cardinal Health, AmerisourceBergen) and pharmaceutical maker Johnson & Johnson	$26 billion over up to 18 years	2022	States and local governments
BP and partners, Deepwater Horizon civil penalties and damages	$20.8 billion	2016	U.S. government and five Gulf states
Meta, youth social media harms	$12.19 billion, up to $17.1 billion (proposed)	2026	A coalition of state attorneys general; needs court approval
Purdue Pharma and the Sackler family	$7.4 billion over 15 years	2025	States, local governments, and individual victims in bankruptcy court

Mass tort deals are the other lookalike. A mass tort is a set of individual injury lawsuits, often grouped in multidistrict litigation (MDL), a federal procedure that sends similar cases to one judge for pretrial work. Each plaintiff keeps an individual claim, so these are not class deals:

Bayer (Roundup), $10.9 billion, 2020: resolved about 75% of roughly 125,000 filed and unfiled cancer claims, with no admission of liability.
3M Combat Arms earplugs, $6 billion, 2023: paid through 2029 to service members and veterans to resolve nearly 250,000 MDL lawsuits.
Engle tobacco litigation: a Florida jury’s $145 billion punitive verdict for a smokers’ class was thrown out when the Florida Supreme Court decertified the class in 2006. Smokers then sued one by one; about 400 federal cases settled for $100 million in 2015.

Which case holds the record in each category?

Securities, antitrust, and consumer protection cases pay on very different scales, so each has its own record:

Securities: Enron, $7.2 billion, about $6.6 billion of it from JPMorgan Chase, Citigroup, and CIBC, with Bank of America among the smaller contributors.
Antitrust: Visa and Mastercard’s $5.54 billion merchant fund, believed to be the largest antitrust recovery ever and upheld on appeal in 2023.
Privacy: Facebook’s $725 million, the largest data privacy recovery.
Data breach: Equifax, with a consumer fund of up to $425 million inside a $700 million package with the FTC, CFPB, and states. More on current cases in our data breach list.
Copyright: Anthropic’s $1.5 billion, about $3,000 per book.
Agriculture: Syngenta’s $1.51 billion for corn growers, grain handlers, and ethanol plants.

Why the largest class action payouts shrink before they reach you

A headline number is the gross fund, not what any one person gets. Four things come out before a check is mailed, and they explain why a billion dollar case can pay $30.

Attorney fees. Judges approved fees of $688 million in Enron (9.5%), $626 million in the Blue Cross subscriber case (about 23%), and $657.2 million in the Blue Cross provider case (about 23%). Anthropic’s judge cut the request to $101.56 million, about 6.8%.
Headcount. Facebook’s $725 million was split among valid claimants, and the first round averaged $29.43 each.
Sub-caps. Equifax advertised $125 in cash, but that option had only $31 million behind it and was cut pro rata once millions of people chose it. The FTC told people to take credit monitoring instead.
Time. “Up to” figures paid over 13 or 18 years are worth less than the sticker, and some never reach the ceiling.

The exception is a case where each member has large, documented losses. Volkswagen owners got the pre-scandal trade-in value plus $5,100 to $10,000 each, and the NFL deal pays up to $5 million for the most serious diagnoses. We walk through the expected-value math in whether class actions are worth joining.

Pending deals that could reshape this list

Three 2026 proposals could land near the top, but none had final approval as of late September 2026:

Visa and Mastercard, about $38 billion in projected savings: preliminarily approved on June 9, 2026. There’s no cash fund. Merchants get a 10 basis point cut in swipe rates for five years and a rate cap, which is why we don’t rank it next to cash deals.
Monsanto (King v. Monsanto), up to $7.25 billion: a Missouri state court deal covering current and future Roundup cancer claims. The final approval hearing was held September 14, 2026; the judge had not ruled in the reports we found.
Meta and state attorneys general, $12.19 billion: a government deal, so it belongs in the second table even after approval.

How we built and checked this list

We ranked only amounts a court approved, used the dollar figure in court papers or from the administrator, and skipped inflation adjustment because most lists that adjust never show the math. For every row we went to the official site, the agency press release, or the law firms that ran the case. Where sources disagreed, we used the one closest to the court.

Our tip for reading any list of the largest class action settlements: check whether it separates class deals from state lawsuits and mass torts, and whether “up to” amounts are labeled. If it ranks tobacco first as a class action, the rest of it probably wasn’t checked either. None of the cases above are open for new claims, so if you want a check from a current case, start with how to join a class action.

Frequently asked questions

What is the biggest class action settlement ever?

By court-approved cash to a class, 3M’s 2024 PFAS deal with public water systems leads at $10.3 billion in present value, up to $12.5 billion. Volkswagen’s $10.03 billion diesel fund from 2016 is a close second. The $206 billion tobacco agreement is larger but was a state lawsuit, not a class action.

What is the largest securities class action payout?

Enron’s $7.2 billion, approved in 2008, is the largest securities recovery. WorldCom’s roughly $6.19 billion is second. Both came mostly from banks, auditors, and directors, since the companies themselves were bankrupt.

How is settlement money distributed in a class action?

After the judge approves the deal, fees and administration costs come out first, and the administrator splits the rest by the plan of allocation. Some plans pay equal shares, others pay by documented loss, such as merchants paid on their card fees. Payments usually start only after appeals end.

Why do some class action settlements take so long to pay out?

Objectors can appeal, and money is frozen until the appeals end. Facebook’s deal was approved in 2023 but first paid in 2025 after the Ninth Circuit ruled. Large funds also take months to screen duplicate and fraudulent claims.

This page reports public information about past legal cases and is not legal advice. For advice about your own situation, talk to a licensed attorney.