Are Prediction Markets Legal In The US? A 2026 State-By-State Guide

Prediction markets have expanded rapidly across the United States, and with that growth comes a flood of questions from new users: Are prediction markets legal in the US? Are prediction markets legal in all states? Which prediction markets are legal in the US? The answer, frustratingly, is not a simple yes or no. It depends on where you live and which platform you use.

In this guide, we break it all down: federal rules, state-level restrictions, and how platforms like Kalshi and Polymarket fit into the picture. For readers who want the broader category context first, this overview of prediction markets is a useful starting point.

The Short Answer

At the federal level, prediction markets are largely legal in the US, provided they operate as regulated derivatives exchanges under the oversight of the Commodity Futures Trading Commission (CFTC). Platforms like Kalshi fall into this category and are legally permitted to offer contracts on a wide range of outcomes, from elections to financial indicators.

But federal approval does not mean you are automatically in the clear. Individual states retain the right to apply their own gambling laws, and several have done exactly that.

Why Are Prediction Markets Legal At The Federal Level?

To understand how prediction markets are legal in the US at all, you need to understand how regulators classify them.

The CFTC treats prediction market contracts as financial instruments, specifically a category within the derivatives market, rather than as gambling products. This classification is the key legal lever. A contract that pays out based on an election result is treated, under federal law, in a way that is closer to a derivatives contract than to a conventional wager. That legal distinction is central to the wider debate around CFTC prediction markets regulation.

This distinction gave platforms like Kalshi and Polymarket a regulatory opening to operate in the market, although not always under the same conditions or with the same degree of US accessibility.

Are Prediction Markets Legal In All States?

This is where the legal picture fragments. Prediction markets are not legal in all states in the same way, and the gap between federal permission and state-level enforcement is significant.

The unresolved legal question at the heart of this debate is whether CFTC oversight preempts state gambling laws. Several states say it does not, and they are acting accordingly.

Which States Are Pushing Back?

Nevada and New Jersey are the most vocal opponents. Both have mature, well-regulated sports betting industries and argue that event-based contracts, particularly those tied to sports outcomes, are functionally identical to traditional wagers. Regulators in both states have issued formal warnings and, in some cases, pursued restrictions or court challenges against platforms offering these products.

Illinois, Arizona, and Maryland have taken a similar position. Authorities in these states have publicly claimed that prediction markets violate existing gambling statutes, especially where contracts mirror betting on political events or sporting outcomes. Enforcement actions and legal evaluations are ongoing.

State	Current Position
Nevada	Has pushed back strongly against event-based contracts that resemble betting products
New Jersey	Has challenged sports-related event contracts and similar offerings
Illinois	Has raised concerns about conflicts with existing gambling laws
Arizona	Has taken a skeptical stance in certain event-contract contexts
Maryland	Has also signaled concern about how these products fit existing rules

Which States Are Reviewing Prediction Markets?

Massachusetts and Ohio have not imposed bans, but both have opened formal reviews of the sector. The central question mirrors what is playing out elsewhere: should a federally regulated platform be able to operate without additional state-level oversight? No restrictions have been enforced yet, but the direction of travel suggests tighter controls may follow.

Which States Fall Into A Grey Area?

California, Georgia, and Arizona occupy an active grey zone. Each has seen legal challenges, regulatory warnings, or early-stage policy discussions about prediction markets. Operators and users in these states face some uncertainty until courts or legislatures provide clearer answers.

State Category	Examples
Reviewing the sector	Massachusetts, Ohio
Active grey area	California, Georgia, Arizona
Clearer opposition	Nevada, New Jersey, Illinois, Maryland

Which Prediction Markets Are Legal In The US Right Now?

For users asking which prediction markets are legal in the US, the clearest answer starts with federal regulatory status.

Kalshi is the primary example of a CFTC-regulated prediction market exchange operating legally at the federal level. Users in most states can access it without significant obstacles.

Polymarket operates in a more complex environment. It has faced regulatory scrutiny and operates differently from Kalshi in terms of its US accessibility, particularly following past enforcement pressure.

States where federally regulated platforms like Kalshi currently face the fewest barriers include Colorado, Florida, Indiana, Iowa, Kansas, Louisiana, Maine, and Connecticut. Many other states have not yet issued formal guidance, meaning platforms can operate under existing federal rules while state regulators continue their reviews. Readers comparing operators from a practical angle may also want to look at prediction market platforms.

Federal Law Vs State Gambling Rules

What ties all of this together is a single pending legal question: does CFTC oversight override state gambling laws?

That question is already working its way through the courts. States argue that prediction markets undercut their licensed betting industries. Platforms and federal regulators counter that these contracts fall under financial law, not gambling law. Until there is a definitive ruling, the US will continue operating under a patchwork, state-by-state approach. That is also why the broader debate over whether these products are gambling or finance matters so much.

What Does This Mean For Users?

If you are considering using a prediction market platform in the US, two factors determine your position.

Question	Why It Matters
Is the platform federally approved?	A CFTC-regulated exchange has a stronger legal basis at the federal level
Has your state issued warnings or restrictions?	State-level enforcement can still affect access or availability

Even a federally approved platform may face limitations in states like Nevada, New Jersey, or Illinois. And in states without formal guidance, access may be possible today but subject to change as the regulatory picture develops.

Some users are also drawn to online gaming through stories about real sweepstakes winners and major prize payouts. Just as iGaming disrupted traditional casinos in the early 2000s and triggered a long, messy regulatory battle, prediction markets are now challenging both the gambling and financial sectors at the same time. Until the courts or Congress provide a definitive answer, “legal” will remain a moving target. Readers who want the broader compliance picture beyond this article can explore prediction markets regulation.