Where Is Polymarket US Legal? All 41 Legal States 2026

Polymarket US and Polymarket.com share a brand, but they are two different prediction markets built for two different regulatory environments.

Polymarket.com

The original Polymarket launched in 2020 as a crypto-based prediction market and became especially well known for their political, economic and current-event markets. Trading takes place through blockchain infrastructure, with crypto-backed funds used to buy and sell positions.

That version of Polymarket was effectively forced out of the U.S. market in 2022. 

Polymarket reached a $1.4 million settlement with the CFTC in January 2022 over offering event contracts without the required registration, agreed to wind down the affected markets and stopped allowing U.S. users to trade on Polymarket.com.

So while Polymarket.com continued operating internationally, it is no longer a legal option for American traders.

Polymarket US

In order to return to the US market, in July 2025, Polymarket bought QCEX for $112 million, acquiring a federally regulated derivatives exchange and clearinghouse in the process.

Those businesses became the foundation of the US version of Polymarket: QCX now operates as Polymarket US, while QC Clearing operates as Polymarket Clearing.

Polymarket US isn't simply Polymarket.com with American accounts switched back on. It's a federally regulated U.S. exchange operating under CFTC oversight and a formal rulebook designed to keep its markets fair and orderly.

That includes monitoring trading for manipulation and other suspicious activity, maintaining trading records, investigating potential rule violations and taking disciplinary action when necessary. Its contracts and trading rules must also comply with the federal requirements governing regulated derivatives markets.

The accounts aren't connected, the market catalogs differ and each platform has its own support system. If you're in the United States, Polymarket US is the version designed and regulated for you.

One thing I've learned covering prediction markets is that an unavailable state doesn't automatically tell you why a platform is unavailable there.

Polymarket US operates as a federally regulated derivatives exchange, but several states have argued that some event contracts — particularly contracts involving sports — also fall under their state gambling laws. Prediction market operators have generally responded that the Commodity Exchange Act gives the CFTC exclusive authority over contracts traded on federally regulated exchanges.

Those arguments are now being tested in courts around the country.

Nevada is the clearest Polymarket-specific example. The Nevada Gaming Control Board sued Polymarket US in January 2026. A state court first issued a temporary restraining order and then granted a preliminary injunction in May preventing Polymarket from offering sports, election and entertainment contracts in Nevada while the case continues.

Not every state on Polymarket's unavailable list has an equivalent court order. In several jurisdictions, access is simply geofenced while the wider regulatory fight develops.

So there isn't one nine-state rule explaining every exclusion. The common thread is that Polymarket currently does not accept customers in those nine states, which is why we classify the platform as Not Available in each of them.

For someone coming from sportsbooks, I think there are three Polymarket mechanics worth understanding straight away.

First, the contract price works a lot like implied probability. A contract bought for 60¢ represents roughly a 60% market probability. If you held that contract until it settled at $1, you'd risk 60¢ to make 40¢ — roughly equivalent to -150 American odds. A 40¢ contract works the other way: you're risking 40¢ to make 60¢, roughly +150.

Second, your price isn't fixed once you enter. If you buy at 40¢ and other traders later push the market to 65¢, you can sell the position before the event finishes.

That's different from a sportsbook cash-out. A sportsbook decides whether to offer you a cash-out and sets the price. On an exchange such as Polymarket US, you're selling your position back into a market where other participants are submitting buy and sell orders.

That makes liquidity and the spread important. A market might show an attractive headline price, but if there aren't enough orders available around that level, a larger trade may execute at different prices.

Polymarket US also supports tools you normally associate more with trading exchanges, including standing limit orders. That lets you specify the price you're willing to buy or sell at instead of automatically accepting whatever price is currently available.

Once you understand probability, liquidity and the ability to trade out of a position, Polymarket starts making much more sense from a sports betting perspective.

When I look at Polymarket US from a regulatory perspective, I start with the entities behind the product.

QCX LLC received CFTC designation as a Designated Contract Market on July 9, 2025. Polymarket then announced on July 21 that it had acquired QCEX for $112 million.

That acquisition included both the exchange and its clearing infrastructure.

QCX LLC now does business as Polymarket US. Separately, QC Clearing LLC d/b/a Polymarket Clearing is registered with the CFTC as a Derivatives Clearing Organization. It handles the regulated clearing side of the structure behind contracts traded through the U.S. platform.

There is even another layer between the customer and those regulated entities: the consumer Polymarket app is operated by PM US Tech and functions as the front end connecting customers to the exchange and clearinghouse.

That's a much more useful explanation of Polymarket's U.S. legal structure than simply saying the company is "CFTC regulated." The app, exchange and clearinghouse each have distinct roles.

Federal regulation has not ended every state-level dispute.

New York Attorney General Letitia James filed a lawsuit against Polymarket US on September 24, 2026, alleging that its event contracts constitute unlicensed gambling under New York law. Polymarket filed its own federal lawsuit later that day, arguing that New York cannot apply its gambling regime to contracts offered through a federally regulated derivatives exchange.

Both cases are ongoing.

As of September 29, no court order has barred Polymarket US from operating in New York, and the platform remains available to eligible New York users under its federal DCM framework. The state's challenge has therefore created an active legal dispute, rather than a current New York prohibition on Polymarket US.