Estimated reading time: 8 minutes.
Key facts
- Case: State of Arkansas ex rel. Tim Griffin v. KalshiEX LLC and Kalshi Inc., Case No. 32CV-26-717, Independence County Circuit Court, filed November 4, 2026.
- Who sued: Arkansas Attorney General Tim Griffin, on behalf of the state, with outside counsel from the law firm DiCello Levitt.
- What is alleged: Kalshi runs an unlicensed gambling business in Arkansas, lets 18-year-olds wager real money, and misleads consumers by advertising its sports contracts as "100% legal."
- Claims: Violations of the Arkansas Deceptive Trade Practices Act and unjust enrichment.
- What the state wants: A court declaration, an order stopping the alleged conduct, restitution for Arkansas consumers, civil penalties, unpaid gambling taxes and a jury trial.
- Status: This is a state enforcement lawsuit, not a class action. No court has ruled on the claims, and there is no claim form or refund program.
In this article
- What Arkansas is accusing Kalshi of
- How Kalshi works
- How Arkansas regulates gambling
- The age question
- What the state says about losses and risk
- The legality claims at the center of the case
- The legal claims and what Arkansas wants
- The wider fight over prediction markets
- What remains unproven
- What happens next
- Frequently asked questions
Arkansas has sued Kalshi, the fast-growing prediction market app, accusing it of running an illegal sports betting operation in the state and telling customers that its products are legal everywhere. The lawsuit, filed November 4, 2026, asks a state court to stop Kalshi's conduct in Arkansas and to order restitution, penalties and back taxes.
The case matters to Arkansans who have traded on Kalshi, especially on sports, because the state is asking for money to be returned to consumers. It also adds Arkansas to a growing list of states fighting Kalshi over whether its event contracts are financial products or gambling. Every description of Kalshi's conduct below is an allegation from the state's complaint or the attorney general's statement.
What Arkansas is accusing Kalshi of
The complaint names KalshiEX LLC, a Delaware company based in New York, and its parent, Kalshi Inc. It says Kalshi lets users "wager money on the outcome of just about anything," including football games, elections and reality shows, without the license, oversight and tax payments that Arkansas requires of legal gambling operators.
"It doesn't take a genius to understand that wagering money on whether the Razorbacks win or lose is gambling," Griffin said in a news release. "And gambling on an unregulated platform is squarely prohibited by Arkansas law." The complaint puts it more bluntly, saying that for most of its offerings Kalshi "is not a risk management tool; it is a pocket-sized bookie."
The attorney general also points to Kalshi's own safety features as evidence. According to his statement, Kalshi offers self-exclusion tools, deposit limits and trading breaks, and it partners with the National Council on Problem Gambling. Griffin argues that these are tools of a gambling operator. "Although Kalshi insists that its products are not gambling, its actions speak louder than its labels," he said.
How Kalshi works
Kalshi lets users buy "event contracts" that pay out if a particular outcome happens, such as a team winning a game. The complaint notes that the company's name comes from the Arabic word for "everything," and says the platform invites bets on nearly every event imaginable.
According to the complaint, Kalshi began offering sports contracts in January 2025. The state says sports quickly became the center of the business. It cites reports that Kalshi earned $263.5 million in fee revenue in 2025, with $234.6 million of that coming from sports, and that sports trading volume topped $30 billion in July 2026 alone.
The Northwest Arkansas Democrat-Gazette reported that more than $330 million was traded on Kalshi on the question of which party would control the U.S. Senate in the November 3 midterm elections, citing the company's website.
No refund program exists This is a lawsuit brought by the state, not a class action or settlement. There is no claim form, and no money is available to Kalshi users at this stage.
How Arkansas regulates gambling
The complaint explains that Arkansas allows casino gaming and sports wagering only within tight limits. Under Amendment 100 to the state constitution, approved by voters in 2018, licensed casinos may offer gaming, and the Arkansas Racing Commission regulates them. The state says there are three licensed casinos, in Crittenden, Garland and Jefferson counties.
Those casinos pay a tax of 13% on the first $150 million of net gaming receipts and 20% above that, according to the complaint. Wagering accounts are limited to people 21 and older. The complaint also says Arkansas law bars betting on elections.
The state says Kalshi skipped all of this: no license, no oversight, no age limit and no gaming taxes.
The age question
A central theme of the lawsuit is that Kalshi lets people as young as 18 open accounts and trade, while licensed sportsbooks in Arkansas must turn away anyone under 21.
The complaint cites a CNN report that users aged 18 to 20 traded more than $5 billion on Kalshi in 2026. It also says Kalshi announced new limits for that age group in October 2026, including a $2,500 monthly deposit cap and what the company described as special accounts. Arkansas argues that these steps show Kalshi knows its product carries risks for young adults, and that they still fall short of the state's 21-and-over rule.
Age limits differ Licensed Arkansas sportsbooks must limit accounts to people 21 and older. Kalshi accepts users from age 18, according to the complaint.
What the state says about losses and risk
The complaint argues that ordinary Kalshi users are often trading against sophisticated professionals with better data and models. It cites an outside analysis finding that ordinary users lost about $583.5 million, including about $371.6 million on sports contracts, while a small group of advanced traders captured much of the profit. It also says Kalshi has acknowledged that nearly three times as many users lose money as make money.
The state also points to integrity concerns. It cites public reporting that Kalshi flagged more than 400 suspicious trades in the first quarter of 2026, more than twice the number it reportedly investigated in all of 2025. In the attorney general's words, the platform presents "real, tangible risks to its users, including excessive wagering, financial losses, depression, and other mental health harms."
The legality claims at the center of the case
The deceptive practices claims turn on what Kalshi told consumers. According to the complaint, Kalshi's app store taglines have included "You can bet on that" and "Legal in all 50 states." When it launched sports contracts in January 2025, Kalshi's announcement was headlined "Game on: Kalshi brings 100% legal sports trading to all 50 states," the complaint says.
Arkansas argues that these statements are false in the state and that they matter to buyers. By calling its platform "100% legal," the complaint says, Kalshi told Arkansans they could lawfully place these wagers and that the company was authorized to take them. Because people expect lawful gambling operators to be regulated and to follow consumer protection rules, the state says, those claims were likely to influence whether people used the platform.
The legal claims and what Arkansas wants
The complaint brings claims under several parts of the Arkansas Deceptive Trade Practices Act, including its bans on false representations about goods and services and on unconscionable or deceptive business practices. It also claims Kalshi was unjustly enriched by money it collected from Arkansans.
The state asks the court to:
- Declare that Kalshi violated the deceptive practices law.
- Order Kalshi to stop the challenged conduct in Arkansas.
- Order restitution to Arkansas consumers who bought event contracts, plus damages.
- Impose civil penalties of up to $10,000 per violation, with additional penalties for violations involving older or disabled Arkansans.
- Order Kalshi to pay the gambling taxes the state says it owes.
- Award attorneys' fees and costs, and hold a jury trial.
These are requests. No amount has been awarded.
The wider fight over prediction markets
Kalshi argues that its contracts are federally regulated derivatives overseen by the Commodity Futures Trading Commission, and that states cannot apply their gambling laws to it. That argument has met mixed results in federal court.
The Arkansas complaint cites two recent appeals court rulings against Kalshi: an August 28, 2026, Ninth Circuit decision involving Nevada and a September 25, 2026, Sixth Circuit decision involving Ohio and Tennessee. Ars Technica reported that the Sixth Circuit found Kalshi had not shown its sports contracts were "swaps" under federal law, and that even if they were, federal law did not block state gambling rules. The same report noted that Kalshi won a Third Circuit case involving New Jersey, that a Maryland case was pending in the Fourth Circuit, and that New Jersey has asked the U.S. Supreme Court to settle the issue.
Kalshi told Ars Technica after the Sixth Circuit ruling, "We disagree with this decision and don't believe it will survive further review." The Arkansas Advocate described the new Arkansas suit as the latest in a wave of state actions against Kalshi. A Kalshi spokesperson did not immediately respond to the Advocate's request for comment on the Arkansas case.
What remains unproven
The lawsuit was filed November 4, and Kalshi has not responded in court. It is likely to argue that federal law controls its contracts, which could lead to a fight over whether the case belongs in state or federal court. A court has not decided whether Kalshi's contracts count as gambling under Arkansas law, whether its legality statements were deceptive, or whether any Arkansan is owed money.
Several figures in the complaint, including user losses and trading volumes, come from outside reports and analyses that the state cites rather than from its own audit.
Allegations, not findings The claims that Kalshi operates illegal gambling and misled Arkansans are the state's allegations. Kalshi has not been found liable for anything in this case.
What happens next
Kalshi must be served and will then respond, possibly by moving to dismiss or by trying to move the case to federal court. If the state wins, any restitution would be handled through the court, and the attorney general's office would likely announce how affected consumers could receive it.
For other cases open to consumers now, see our list of class action cases you can join. This article is for information only and is not legal advice.
Frequently asked questions
Why is Arkansas suing Kalshi?
Arkansas says Kalshi runs an unlicensed gambling business in the state, allows 18-year-olds to wager and falsely advertises its sports contracts as legal in all 50 states, in violation of the Arkansas Deceptive Trade Practices Act.
Is the Arkansas Kalshi lawsuit a class action?
No. It is an enforcement action brought by the state attorney general. Arkansas consumers are not class members, but the state is asking the court to order restitution to them.
Can I get money back from Kalshi?
Not right now. There is no settlement or claim process. Money would only become available if the court orders restitution or the state reaches a settlement with Kalshi.
Is Kalshi illegal in Arkansas?
No court has ruled on that. Arkansas argues that Kalshi's sports and event contracts are illegal gambling under state law, while Kalshi says its federally regulated contracts are not subject to state gambling rules.
What age does Kalshi allow?
According to the complaint, Kalshi allows users 18 and older. Arkansas limits regulated wagering accounts to people 21 and older.
Where was the Kalshi lawsuit filed?
The case was filed November 4, 2026, in Independence County Circuit Court in Arkansas as Case No. 32CV-26-717.
