Are prediction markets legal in the United States, and where is the line?

The position in the United States, in one screen.

This page is general information, not financial, investment, legal, tax, or betting advice. The rules named here change frequently, and a wrong reading can carry real legal and financial consequences. Verify the current position and your own eligibility, and consult a qualified professional before acting.

Prediction markets are federally regulated in the United States by the Commodity Futures Trading Commission, which oversees event contracts listed on designated contract markets under the Commodity Exchange Act, per the CFTC, as of June 2026. Non sports markets such as economic and climate indicators sit clearly within that federal framework, while sports event contracts are contested: federal appeals courts have split, several states call them unlicensed sports wagering, and the CFTC has proposed a new rule that is open for public comment until 27 July 2026. Treat sports as contested, check your state, and confirm your own eligibility before acting.

Where the line falls, and why it moves.

The single most useful idea on this page is that two systems of law touch prediction markets at once, and most of the confusion comes from forgetting that. At the federal level, the Commodity Exchange Act gives the Commodity Futures Trading Commission, the CFTC, jurisdiction over futures, options, and swaps traded on federally regulated exchanges. An event contract listed on a designated contract market, the formal name for a CFTC regulated exchange, is treated as falling within that federal system. The CFTC has asserted exclusive jurisdiction over event contracts as swaps, per the CFTC and reputable legal reporting, as of June 2026. At the same time, every state runs its own gambling law, and several state regulators argue that some of these contracts are really sports wagering that needs a state licence. When those two readings collide, you get the friction that dominates the news.

What is clearly on the federal side.

Start with the settled part, because it is large. Event contracts on economic and climate data, the kind of Yes or No questions about inflation, jobs, growth, or temperature that trade on a CFTC regulated exchange, sit clearly within the federal framework and are not the subject of the current fight. These are the markets that regulators, courts, and operators broadly agree belong under CFTC oversight. Markets on the outcome of United States elections have also been offered on federally regulated venues to eligible United States residents, following federal court rulings that allowed them, as of June 2026. If your interest is macro data or elections on a registered exchange, you are in the clearest part of the picture. None of that removes the ordinary risk of losing money, and it does not override your own state or your eligibility, which you should still confirm.

The contested zone, named plainly.

The dispute is about sports. Federally overseen exchanges began listing sports event contracts in early 2025, and sports quickly became the dominant category by volume on the largest venue, accounting for more than 85 percent of trading volume on Kalshi, according to reputable reporting, as of June 2026. That popularity is exactly why states pushed back. State gaming regulators argue that a contract paying out on who wins a game is sports betting by another name, and so needs a state licence, while the exchanges argue these are federally regulated swaps that state law cannot touch. We mark sports event contracts as contested, not legal and not illegal nationwide, because that is the honest description of an unresolved question, as of June 2026.

The CFTC proposed rule of June 2026.

On 10 June 2026 the CFTC issued a notice of proposed rulemaking that would set out, for the first time in detail, how it would judge which event contracts are allowed, per the CFTC press release and reputable legal analysis, as of June 2026. The proposal describes a three step test: whether a contract is an event contract in an excluded commodity, whether it involves an enumerated activity such as gaming, unlawful activity, terrorism, assassination, or war, and whether it is contrary to the public interest. Under the proposal, contracts on sporting outcomes such as final scores, point differentials, season long statistics, and tournament advancement would largely be permitted, while contracts on player injuries, officiating decisions, discrete actions within a game, physical altercations, and sports below the college level are described as likely contrary to the public interest, per reputable legal reporting, as of June 2026. This is a proposal, not settled law. Public comments are due before 27 July 2026, and the final rule could differ from the draft. Until it is finalised, the contested label still applies.

Method: our reading of the federal framework, the June 2026 CFTC proposed rule, and reputable legal reporting, as of 28 June 2026. This is general information, not legal advice, and the position can change.

The courts, and the states, in 2026.

The fight is also live in the federal courts, and the appeals courts have not agreed. On 6 April 2026 a divided panel of the United States Court of Appeals for the Third Circuit held that the CFTC has exclusive jurisdiction over sports related event contracts offered by Kalshi, finding Kalshi likely to prevail on its arguments that these contracts are swaps under the Commodity Exchange Act and that the Act preempts New Jersey gambling law, per the Third Circuit opinion and reputable legal analysis, as of June 2026. A separate appeal runs the other way: the Ninth Circuit is weighing Nevada's challenge in a case brought by the Crypto.com affiliate that operates the exchange, and reporting after the April 2026 argument suggested the panel appeared more sympathetic to Nevada, as of June 2026. A split among federal appeals courts is the classic setup for the Supreme Court to step in, though whether and when it will do so is not knowable from here.

Federal authorities have also gone on the offensive at the state level. On 2 April 2026 the CFTC sued Arizona, Connecticut, and Illinois, seeking injunctions to block those states from enforcing their gambling laws against Kalshi and Polymarket, according to reputable reporting, as of June 2026. The takeaway for a reader is not to memorise the docket but to understand the shape: federal authority is pressing its claim of exclusive jurisdiction, several states are resisting, and the question of who wins is being decided in real time. That is why this page carries an as of date and why you should check the live position for your own state before acting.

Onchain and offshore venues, a caution.

A platform being reachable from your browser is not the same as it being lawful for you to use. Venues that operate without United States registration, including many onchain markets, sit on contested ground for United States persons and add their own risks around custody of your funds and your ability to seek recourse if something goes wrong. We mark these as contested rather than giving a clean yes or no, and as a matter of policy we do not point readers to platforms they may not legally use. If a venue is not registered in the United States, treat reachability as a technical fact, not a legal permission.

What this means for you.

Put simply: if you are looking at non sports event contracts on a CFTC regulated exchange, you are in the settled part of the picture, subject to your age, your identity verification, and your own state. If you are looking at sports event contracts, you are in the contested zone, and the right move is to check the current position for your state and the platform's own terms before you act, rather than relying on the fact that an app will let you place a trade. The rules here have changed several times in the past year and a proposed federal rule is still open for comment, so the most important habit is to confirm the live position rather than trust a page, including this one, to stay current forever. We update this page as the position changes and log changes on our regulatory updates record.