Are Prediction Markets Legal? The Complete 2026 Guide

Last updated: March 2026

The same contract. The same platform. The same bet on who wins an election.

In Washington DC, it's a federally regulated financial instrument. In Paris, it's illegal gambling. In Amsterdam, the platform offering it is being fined weekly until it stops.

That's not a loophole or a technicality. Two genuinely different regulatory philosophies are colliding over a product most legal systems weren't built for. The answer to "are prediction markets legal?" depends almost entirely on which framework applies to you: the one that governs where you live, which platform you're on, and what you're trading.

This guide covers the full picture: US federal law, the active state-by-state legal battles, international jurisdiction-by-jurisdiction status, and what's changing right now in 2026.

Are prediction markets legal? The short answer

In the United States, prediction markets are legal when operated by a CFTC-registered exchange. Currently that means Kalshi and Polymarket US. Outside the US, most countries treat prediction markets as gambling, meaning legality depends on whether the platform holds a local license. As of 2026, Polymarket operates in 160+ countries but is formally blocked in France, the Netherlands, Australia, Switzerland, and several others.

The legal status of any given platform, in any given country, can and does change. If you're outside the US, your jurisdiction's status is in the table in Section 6.

What makes a prediction market legal in the first place?

Before getting into country-by-country answers, it helps to understand why the question is complicated. It comes down to which regulatory box the product gets placed in. Regulators don't agree on which box that is.

The derivatives route (the US model)

In the United States, prediction markets can be classified as financial derivatives. Specifically, event contracts: binary-payoff contracts whose settlement is based on the outcome of a real-world event. The CFTC's March 2026 DMO Advisory Letter 26-08 defines them precisely as "a type of derivative contract, often a swap with a binary payoff structure, whose settlement is based on an underlying occurrence or event."

When that classification applies, the product is regulated like a futures contract. The platform needs to be a licensed exchange (a Designated Contract Market, or DCM). Think of it as a federal license to operate an event contract exchange, the same type of license a futures exchange holds. Legal. Regulated. Subject to CFTC oversight, anti-manipulation rules, and market surveillance requirements.

The gambling route (most of the world)

In most other countries, the same contract looks like a wager. You're staking money on whether something will happen, and if you're right, the price you paid becomes a dollar. That maps cleanly onto the legal definition of betting in the UK, France, Germany, the Netherlands, and most other developed jurisdictions. Betting is either licensed under national gambling law or it isn't.

The catch: most prediction market platforms don't hold local gambling licenses in these countries. Which means they're not legal there, regardless of what happens in Washington.

The legal answer, in other words, isn't about what prediction markets are in some abstract sense. It's about which regulatory framework gets applied, and that depends almost entirely on where you're trading from.

United States: the federal picture

For US readers, the question of whether prediction markets are legal is really three separate questions: is the platform licensed, is the contract type permitted, and does your state have anything to say about it?

The federally regulated path

Under the US Commodity Exchange Act, prediction market platforms can legally offer event contracts if they operate as CFTC-registered Designated Contract Markets. Kalshi and Polymarket US (operated by QCX LLC, which received an Amended Order of Designation from the CFTC in late 2025) both hold this status. If you're a US user trading on either of these platforms, you're on federally regulated ground.

There's also a built-in veto: the CFTC can block specific contract types it considers contrary to the public interest. The categories it's most likely to act on include terrorism, war, assassination, and anything that overlaps with state gambling law. This is the provision that draws the line between what's tradeable and what isn't. It's also the same provision states are now invoking against sports contracts.

The back door: "no-action" relief (platforms the CFTC tolerates without fully licensing)

Two platforms operate under a different legal path: narrow "no-action" relief from the CFTC that permits operation for specific, limited purposes.

The Iowa Electronic Markets, run by the University of Iowa, has operated under CFTC no-action relief since 1993 for academic research purposes. A $500 investment cap per trader applies.

PredictIt, which the CFTC attempted to shut down in 2022, had its no-action status amended in 2025 via CFTC Staff Letter 25-20. The amended relief removed the previous per-trader cap and tied the investment limit to the Federal Election Commission's FECA contribution limit. It's back, under revised and more permissive terms.

What Kalshi's DC Circuit win actually settled

In late 2024, the DC Circuit ruled in Kalshi's favor in its litigation over congressional election contracts, allowing election-outcome contracts on a federally regulated exchange to proceed. This was significant: it confirmed that political event contracts are not categorically prohibited under the CFTC's public-interest framework. But the ruling applied specifically to congressional-control contracts, not all political event contracts. The boundaries of what's permitted remain untested beyond that.

What it did not settle is the sports question. The DC Circuit ruling was specifically about election contracts on a federal exchange. Sports event contracts remain the active legal battleground, covered in the next section.

The fight that's still happening: federal vs. states

This is the part of the US legal picture that most coverage glosses over, and the part that matters most for anyone trading sports contracts right now.

After the Supreme Court's 2018 ruling in Murphy v. NCAA, states gained the authority to legalize sports betting independently. Thirty-eight states did exactly that, building licensing frameworks, tax structures, and consumer protection requirements around sportsbooks. That framework generates real revenue for states and real political capital for their regulators.

Then federally registered prediction markets started offering sports event contracts (YES/NO contracts on game outcomes, player performance, and sports statistics). States saw it as a direct threat: a platform using federal "rails" to offer what is, economically, sports betting without a state license, state taxes, or state consumer protections.

The response has escalated quickly. If you're a US user trading sports contracts right now, this fight is the reason your platform may suddenly stop working in your state, or why it already has.

Massachusetts obtained a preliminary injunction against Kalshi's sports event contracts. The court order describes Kalshi explicitly as "a nationwide prediction market derivatives exchange registered as a DCM with the CFTC, but not licensed for sports wagering in Massachusetts" and rejected Kalshi's federal preemption argument at that stage.

Arizona went further. Criminal charges were filed against Kalshi in March 2026, framing its sports and election contracts as operating an illegal gambling business under Arizona law. It's the first state to pursue criminal enforcement rather than civil injunction, and a meaningful escalation in the state-versus-federal battle.

In December 2025, 38 states filed an amicus brief backing Maryland's position in the federal preemption fight, signaling broad state-level consensus against the platforms' preemption argument.

As of March 2026, no court has definitively settled whether federal derivatives registration preempts state sports wagering law. The legal outcome is genuinely unknown. Anyone claiming certainty on this is ahead of the courts.

International: where prediction markets are legal by country

57.98% of Polymarket's user traffic comes from outside the US, Canada, Germany, and the UK combined. Most coverage ignores them. The legal picture for that majority is almost entirely different from the US framework, and simpler to state: prediction markets are treated as gambling, and most platforms don't hold the local license required to operate legally.

One practical detail worth knowing: Polymarket's access rules are based on physical location at the time of trading, not citizenship or residency. A user from a restricted country who is physically traveling in a non-restricted country can trade. What you cannot do is use a VPN to simulate a different location. Polymarket's Terms of Service (§2.1.4) explicitly prohibit this and it can result in account penalties.

The short version: If you're in the UK, there's a legal path through licensed operators. If you're in France, the Netherlands, Australia, or Switzerland, the major platforms are blocked or actively penalized. If you're in Japan, New Zealand, or South Korea, the prohibition is categorical.

Germany and Canada sit in a middle ground: some forms of event wagering are permitted for licensed or authorized operators, but the major crypto-based prediction market platforms don't hold those licenses.

What's changing: the 2026 regulatory wave

This section is updated quarterly. Last review: March 2026.

The prediction market regulatory environment is the most active it has been since these platforms existed. Several developments are running simultaneously:

CFTC March 2026 ANPRM. The CFTC issued an Advanced Notice of Proposed Rulemaking in March 2026, opening a public comment period on whether to amend or issue new prediction market regulations. This is the first major formal rulemaking process in this space. Whatever comes out of it will be the most significant regulatory development since Kalshi's DCM registration.

BETS OFF Act. Introduced by Senator Chris Murphy (D-CT), this bill would ban federally regulated prediction markets from offering contracts on elections. If passed, it would directly reverse the Kalshi DC Circuit ruling.

Event Contract Enforcement Act. This bill would explicitly give states enforcement authority over federally registered event contract platforms. It's a direct legislative response to the preemption argument Kalshi and others have used to resist state injunctions.

Arizona criminal escalation. The March 2026 criminal charges against Kalshi signal that at least some states are willing to use criminal enforcement tools, not just civil injunctions.

Congressional contract restrictions. Multiple proposals are circulating that would categorically prohibit event contracts on war, terrorism, death, elections, and government actions. The political driver is the death-betting controversy, which prompted six Democratic senators to demand CFTC action in February 2026.

The rules that govern prediction markets in 2027 will look meaningfully different from today's. The only question is which direction they move.

What prediction market legality actually means for traders

Prediction markets aren't cleanly legal or illegal. They're a product trying to fit into regulatory systems built for something else, and different systems have answered that question very differently.

The US chose the derivatives path, which created a federally regulated, nationally accessible framework that immediately ran into states who feel their sports betting revenues are being undercut. Most of Europe chose the gambling path, which means local licensing or prohibition. Japan and South Korea said no outright.

What makes prediction markets genuinely interesting is that they're neither stocks nor sportsbook bets. The legality question keeps circling that fact without quite landing on it. The law is still catching up.

That uncertainty is frustrating to navigate. It's also, if you look at it right, the most honest signal about where this industry stands.