A state gambling lawsuit, an immediate federal countersuit, and a regulator-versus-regulator standoff that sets out the rules Canadian market watchers should understand before event contracts arrive here.
New York sues Polymarket U.S. over what the state describes as an unlicensed gambling operation, and within hours on Thursday the prediction market company fired back with a federal countersuit of its own. The dual filings, dated September 24, 2026, turn a state consumer-protection action into a direct test of whether individual states or federal derivatives regulators control the fast-growing market in event contracts.
The case lands almost two months after the same state attorney general sued Polymarket’s closest competitor, Kalshi, in a comparable civil action. Together, the two suits make New York one of the most aggressive jurisdictions in a national dispute that now involves state attorneys general, state gaming regulators and the U.S. Commodity Futures Trading Commission on opposing sides.
New York Sues Polymarket: What the State Alleges
The state’s complaint, filed in state court in Manhattan, claims Polymarket runs an illegal gambling platform in breach of New York gambling statutes and operates without a licence from the New York State Gaming Commission. The allegations have not been tested in court, and Polymarket denies them.
Attorney General Letitia James framed the case in consumer-harm terms, saying that “by skirting New York’s laws, Polymarket is targeting the most vulnerable and depriving New York families of critical services and support.” Governor Kathy Hochul went further, arguing that running an unlicensed gambling operation had “put New Yorkers at risk, especially those underage who are most vulnerable to problem gaming.”
That framing matters. By casting event contracts as gambling rather than financial instruments, the state places the activity squarely inside its own licensing authority — which is precisely the premise Polymarket is trying to dismantle.
The Penalties and Disclosures New York Is Demanding
The relief sought in the state’s filing is unusually detailed, and it gives a sense of how far New York is willing to push the matter.
- Treble recovery: penalties including three times the amount of any gains Polymarket made from New York activity.
- Per-offer penalties: $100,000 for each attempt or offer of “sports wagering or mobile sports wagering” in the state.
- Full trading account: a complete accounting of all trades placed on the platform, the money users lost, and the revenue Polymarket earned.
The demand for a trade-level accounting is the part with the widest implications. If a state can compel a federally regulated exchange to produce user-level trading data under gambling law, the compliance burden extends well beyond the specific penalties at issue.
Polymarket’s Countersuit and the “Swaps” Argument
Polymarket moved the same day to shift the case out of Manhattan state court and into the U.S. District Court for the Southern District of New York. It then filed a separate civil suit against James and officials of the New York State Gaming Commission.
The core of the company’s legal theory is that its event contracts are swaps, and that states have no authority to regulate swaps. Its filing says the action “seeks to prevent imminent and irreparable harm arising from New York’s enforcement of state gambling laws against federally regulated derivatives exchanges — enforcement Congress has expressly prohibited.” The suit also pushes back on the characterisation itself, noting that officials had asserted federally regulated event-contract trading is “unregulated gambling,” which it calls an “erroneous theory.”
Chief legal officer Neal Kumar answered the political side of the argument directly, saying the company “was founded in a tiny NYC apartment and now has more than 350 employees here,” adding that Polymarket believes in New York and is staying. He described the state’s action as a “copy/paste” of a recycled lawsuit and said the company would fight for its users.
How the Kalshi Case Set the Template
New York filed a similar civil action against Kalshi roughly two months earlier, which is why Polymarket’s legal team characterised the new complaint as recycled. The sequencing suggests a deliberate enforcement strategy rather than a one-off: address the largest platforms in turn, using the same state gambling framework each time.
For the industry, the parallel cases create a useful, if uncomfortable, natural experiment. Two competitors, two suits, two sets of removal and preemption arguments — and eventually, rulings that will tell operators whether the state or federal reading of event contracts prevails in one of the most commercially important jurisdictions in the United States.
Where the CFTC Fits in the State-Versus-Federal Standoff
Polymarket U.S. launched in December 2025 and is regulated by the Commodity Futures Trading Commission, the federal agency with oversight of prediction market platforms. The company separately operates an offshore prediction platform founded in 2020. The CFTC did not immediately respond to a request for comment on the New York filings.
The agency has not been passive in the broader fight. The CFTC has sued several states, asserting its own authority to regulate these markets — meaning courts are now being asked to resolve a conflict between a federal regulator and state governments, with the platforms caught in between. That is a materially different posture from a conventional consumer-protection case.
| Filed | September 24, 2026 |
| Plaintiff in state action | State of New York, via Attorney General Letitia James |
| Defendant | Polymarket U.S. |
| Core allegation | Operating an illegal, unlicensed gambling platform under state law |
| Company response | Removal to the Southern District of New York; separate suit against James and Gaming Commission officials |
| Penalties sought | Three times any gains; $100,000 per sports wagering attempt or offer; full trading accounting |
| Federal regulator | Commodity Futures Trading Commission |
| Prior related action | Similar New York suit against Kalshi, filed roughly two months earlier |
Why Canadian Market Watchers Should Track This Case
The following is general regulatory background rather than anything contained in the filings. Canada divides these questions differently than the United States does. Gaming and betting sit with the provinces under the Criminal Code framework, with bodies such as Ontario’s Alcohol and Gaming Commission overseeing the province’s regulated online market. Derivatives and securities, meanwhile, are supervised provincially through the members of the Canadian Securities Administrators rather than by a single national agency equivalent to the CFTC.
That structure means Canada has no built-in federal counterweight of the kind Polymarket is invoking in New York. Any comparable dispute here would likely be argued between a provincial gaming regulator and a provincial securities commission, or across provincial borders — a scenario with its own coordination problems.
Canadian financial institutions and market infrastructure operators have spent the past year working through similar classification questions in other corners of the market, from the finalisation of OSFI’s crypto-asset capital rules to the Big Six banks’ work on a shared digital deposits network. The recurring theme is the same one at the centre of the Polymarket dispute: when a product does not fit neatly into an existing legal category, the fight over which regulator owns it can matter more than the product itself.
The Questions the Courts Will Have to Answer
Two threshold issues will shape everything that follows. The first is procedural: whether the case stays in federal court after Polymarket’s removal, or is sent back to Manhattan state court. Venue is not a formality here, because the company’s preemption argument is built for a federal forum.
The second is substantive: whether a CFTC-regulated event contract on a sports outcome is a swap, a wager, or something that can be both depending on who is asking. Until an appellate ruling settles that, operators face the prospect of running a federally licensed business that some states treat as unlawful — and investors, exchanges and advertisers will price that uncertainty accordingly.
Note: the allegations described above are claims made in civil filings and have not been proven in court. Nothing here is legal advice.
Frequently Asked Questions
What exactly is New York accusing Polymarket of?
Operating an illegal gambling platform in violation of state gambling laws, without a licence from the New York State Gaming Commission.
Why did Polymarket file its own lawsuit instead of just defending itself?
The company argues its event contracts are swaps, that states cannot regulate swaps, and that Congress has expressly barred state gambling enforcement against federally regulated derivatives exchanges. Its suit names Attorney General Letitia James and New York State Gaming Commission officials.
Is Polymarket U.S. regulated by anyone?
Yes. Polymarket U.S., which launched in December 2025, is regulated by the Commodity Futures Trading Commission. The company also operates a separate offshore prediction platform founded in 2020.
How much money is at stake?
No total figure has been specified. New York is seeking three times any Polymarket gains plus $100,000 for each attempt or offer of sports wagering or mobile sports wagering in the state, which is why the demand for a full trading accounting matters.
Does this ruling affect Canadian users or platforms?
Not directly — the case concerns New York state law and U.S. federal derivatives regulation. Its significance for Canada is precedential, as a live test of how courts classify prediction market contracts.
The Brand Magazine Newsroom covers Canadian business, markets and policy news for brand builders and entrepreneurs. Newsroom reports are produced from published public sources such as company releases and government and regulator publications, and follow our Editorial Standards.
