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. Every amount below is tied to a court record, the official administrator, a government agency, or the law firm that ran the case, and each 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 is the whole sorting rule for this page: it 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, and amounts are the nominal dollars in the court order.

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 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 ($1.74 billion in awards as of October 2026)	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: the NFL program’s official site listed $1,738,437,013 in payable awards as of October 26, 2026, well past the league’s early estimates, and the total keeps rising as retirees receive qualifying diagnoses. And the Wells Fargo row is the investor case, not a consumer refund; our Wells Fargo page covers the consumer cases.

Volkswagen’s row deserves one more line. The automaker agreed to pay after regulators found software in 2.0 liter TDI engines that cheated emissions tests in violation of the Clean Air Act, and the $10.03 billion consumer fund was only part of a $14.7 billion package that also funded environmental mitigation.

Why the $206 Billion Tobacco Deal Is Not on the List

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 record class action. It wasn’t. States sued to recover Medicaid costs of treating smokers, and the money goes to state treasuries, not to smokers.

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 if conditions are met	2026	A coalition of state attorneys general; approved by a federal judge in August
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 and negotiates through their own law firms, 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 or wrongdoing.
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.

Engle is the clearest example of why the label matters. A class can win a record verdict and still collect nothing as a class if an appeals court finds the members’ claims too different to try together.

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 for shareholders who bought stock at artificially inflated prices, 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 record antitrust settlement paid in cash and upheld on appeal. Merchants alleged the networks and banks fixed swipe fees.
Privacy: Facebook’s $725 million, the record for a data privacy recovery, for users who alleged the company unlawfully let third parties reach their data.
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.

The reason securities cases dominate the top of the table is structural: damages are calculated on every share bought during the fraud period, so a company with a large market value produces a large loss figure even when each investor lost a modest amount.

Why Billion Dollar 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 financial losses. Diesel 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. What decides your share is the plan of allocation, the formula in the deal papers that divides the net fund, and that document rarely makes the news. We walk through the expected-value math in whether class actions are worth joining.

What Changed This Year: One Approval, Two Deals Still Waiting

As of October 31, 2026, one big deal from this year has been approved and two that could rival the top of the list are still waiting on a judge:

Meta and state attorneys general, $12.19 billion (approved): U.S. District Judge Yvonne Gonzalez Rogers approved the deal on August 26, 2026. It is a government settlement, so it sits in the second table, not the class ranking.
Visa and Mastercard, about $38 billion in projected savings (pending): preliminarily approved on June 9, with final approval still pending. 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 it isn’t ranked next to cash deals even after approval.
Monsanto (King v. Monsanto), up to $7.25 billion (pending): a Missouri state court deal covering current and future Roundup cancer claims, paid over up to 21 years. The final approval hearing was held September 14, and Reuters reported on October 30 that the St. Louis judge was still reviewing it.

If Monsanto’s deal is approved, it would count as a true class settlement, and its $7.25 billion ceiling would put it near the top of the first table. That ceiling is a maximum paid over two decades, though, so it would carry the same caveat as 3M.

Before you trust 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 ranked cases accepts new sign-ups today, 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.

Which securities class action paid the most?

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

Are the largest class action settlements adjusted for inflation?

No. The amounts on this page are nominal dollars as written in the court order in the year of approval. Adjusting would raise older cases such as the 2005 WorldCom and 2008 securities recoveries against recent ones and could reorder the top of the table, so any adjusted ranking should name its price index and base year.

What are the biggest class action lawsuits right now?

The class deals with the most money still waiting on a judge are the Visa and Mastercard merchant settlement, about $38 billion in projected fee savings, and Monsanto’s Roundup class deal of up to $7.25 billion. Neither had final approval when this page was last updated, and neither takes ordinary consumer claims. For cases you can file in now, see our list of open class action settlement deadlines.

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 waited nearly two years between final approval and the first payment because of a Ninth Circuit appeal. Large funds also take months to screen duplicate and fraudulent claims; our guide to how long class actions take breaks down each stage.

How This List Was Built, With Sources

Only amounts a court approved for a certified class are ranked, using the dollar figure in court papers or from the administrator. Inflation adjustment is skipped because most lists that adjust never show the math. Each row traces to the official site, an agency press release, or the law firms that ran the case, and where sources disagreed, the one closest to the court won. Time-sensitive items (the NFL award total and the status of the 2026 deals) were rechecked on October 31, 2026.

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.