New York's $36 billion demand reframes every state suit against Kalshi

Tim Griffin filed a 57-page complaint on Wednesday. The document is careful, methodical, and in one respect unlike every other state action against Kalshi: it doesn't reach for the largest number. Arkansas wants back taxes, restitution, civil penalties, and an injunction. It is asking the court to treat Kalshi as a gambling operator that has been operating unlicensed and undertaxed for however long it has served Arkansas customers.

That restraint is the tell.

Griffin's filing under the Arkansas Deceptive Trade Practices Act is not an improvised response to a novel company. It is a template. The complaint assembles Kalshi's own infrastructure — self-exclusion tools, deposit limits, trading breaks, the National Council on Problem Gambling partnership — and reclassifies each item as evidence of a gambling operation. When a company builds responsible-gambling machinery and then argues it is not running a gambling business, that machinery becomes the prosecution's exhibit. Griffin knew this. So did whoever drafted the Utah filing. The same move appears in both.

The age argument runs alongside the tax argument and is, in some ways, cleaner. Arkansas permits casino gaming and sports wagering for people 21 and older. Kalshi accepts traders from 18. Traders in that cohort moved an estimated $5.4 billion on the platform through late August. The number matters less than the structure: Kalshi added deposit limits and parent-linked accounts for 18-to-20-year-old users, which is precisely the kind of remediation a regulator demands after finding a compliance gap. Griffin's complaint cites the addition as an acknowledgment.

Kalshi's standard defence — that its event contracts fall under exclusive federal jurisdiction via the CFTC — has worked once. The Third Circuit accepted it in April, ruling New Jersey out of the picture. The Sixth and Ninth Circuits went the other way. The Second Circuit is still considering its position. A CFTC that has sued ten states to defend Kalshi's federal prerogative is now operating under a Supreme Court whose composition has shifted, and in a legal environment where Arkansas is specifically not trying to establish preemption law. It is trying to establish a tax bill.

That is the seam. The states that filed criminal charges — Arizona, Utah — are fighting a constitutional battle over jurisdiction. Griffin is filing an accounting claim. Even if Kalshi eventually wins the preemption argument at the Supreme Court level, a tax-and-restitution suit asks a different question: for the period during which Kalshi was operating inside the state and before any federal ruling settled the matter, did it owe Arkansas gambling taxes? Courts have occasionally found that a company owes back payments for an activity that is later legalised or federally protected, on the grounds that it was conducted without authorisation at the time.

The newsroom has already noted that New York is seeking at least $36 billion — a number that functions less as a damages calculation than as a negotiating instrument. Arkansas's complaint does not name a figure. It asks the court to calculate one, year by year, for every year Kalshi served Arkansas customers. That is a subtler form of the same pressure.

Kalshi took 82% of a record $72.3 billion in combined prediction-market volume in September. The tax on that volume, applied retroactively across a dozen states that believe they were owed a cut, is not an existential threat to a company valued at $40 billion. It is, however, the kind of liability that materialises on a balance sheet before the constitutional question is resolved, and balance sheets do not wait for appellate courts.