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Prediction Markets Editor
Kerem Erden writes CoinRithm's prediction market, platform comparison, and regulatory explainers. His work focuses on Polymarket, Kalshi, market mechanics, pricing, fees, and availability across jurisdictions.
The short answer is: yes, some prediction markets are legal in the United States, but the rules depend heavily on the platform, the contract type, and the current regulatory posture.
If you are searching for are prediction markets legal in the US, is Kalshi legal in the US, or is Polymarket legal in the US, this is the main legal explainer for that cluster.
That is where many beginners get confused. “Prediction markets” sounds like one thing, but in practice the US legal picture is different for a regulated platform like Kalshi than for a crypto-native platform like Polymarket.
This guide explains the current US legal framing in plain English. It is not legal advice. The goal is to help you understand the structure well enough to avoid obvious mistakes before funding an account or wallet.
If you need the category explainer first, read What Are Prediction Markets in Crypto?. If you are deciding between the two most searched names, read Kalshi vs Polymarket.
TL;DR
If you want the simplest version:
The clean beginner distinction is:
That is the main point to understand first.
People often mix together:
Those are related, but they are not identical.
The confusion gets worse because:
So when someone asks:
“Are prediction markets legal in the US?”
the honest answer is not one word. It is:
“Some are, under some structures, and you need to know which platform you are talking about.”
The Commodity Futures Trading Commission is the key federal regulator in this space.
As of February 17, 2026, the CFTC publicly reaffirmed in a court filing that it has exclusive jurisdiction over U.S. commodity derivatives markets, including event contract markets commonly called prediction markets.
Source: CFTC Press Release 9183-26
Also relevant:
In plain English, that means:
For beginners, Kalshi is the easiest legal example to understand.
Why:
Kalshi’s own help materials say:
Sources:
So if a beginner asks:
“What is the clearest legally structured prediction-market option in the US?”
the practical answer is usually:
Kalshi
That does not mean zero controversy. It means the legal structure is much clearer than it is for crypto-native alternatives.
Polymarket should not be explained to US beginners as if it has the same legal posture as Kalshi.
Treating it that way would be sloppy.
Why it is more complicated:
There are strong public signs that Polymarket’s US relationship is evolving, and current reporting suggests a more active US path than in the past. But that still does not make it the same clean beginner legal story as Kalshi.
So the practical beginner rule is:
This is also why CoinRithm should treat Polymarket as:
Even with strong federal CFTC framing, state-level conflict still matters.
That is especially true around sports-related event contracts.
For example:
So beginners should understand:
If you are in the US and want to avoid obvious mistakes:
The best beginner interpretation:
That does not make Polymarket unimportant. It just means the legal explanation needs to be more careful.
CoinRithm is useful here because it helps you research markets before you make a platform decision.
Use CoinRithm Prediction Markets to:
Then move to the right next page:
if you want the practical access view: Availability
if you want the platform directory: Prediction Market Sources
if you want the category overview: What Are Prediction Markets in Crypto?
if you want the platform head-to-head: Kalshi vs Polymarket
if you want the broad platform list: Best Prediction Markets in 2026
That is a safer beginner workflow than jumping straight from headline curiosity to a funded trade.
Some are, and the CFTC has recently reaffirmed its jurisdiction over US event-contract markets. But that does not mean every platform or every contract is equally straightforward for every US user.
Kalshi is the clearest regulated-US example in this category and is the easiest platform to point to for beginners who want a compliant-looking US structure.
That is the more complicated question. US users should not assume Polymarket has the same legal posture as Kalshi. Verify current access and restrictions directly before using it.
Yes. State-level disputes can still matter, especially around sports-related event contracts.
No. It is an educational summary designed to help beginners understand the structure of the issue and avoid obvious confusion.
Prediction markets are not simply “legal” or “illegal” in the US in one universal sense.
The better summary is:
That is the most useful beginner understanding in 2026.
Start with research, not assumptions.
Use CoinRithm Prediction Markets to understand the market landscape first, then move into the right comparison or platform article before you fund anything.
Next Step
Need the broad platform comparison? Read Best Prediction Markets in 2026.
Need the direct head-to-head between the two most searched names? Read Kalshi vs Polymarket.
Need the Polymarket-specific access view? Read Polymarket Countries and Availability.
Want to browse markets before choosing a platform? Start on CoinRithm Prediction Markets.
Last Updated: March 30, 2026
Disclaimer: This article is for educational and informational purposes only and is not legal advice. Laws, regulations, platform access rules, and enforcement positions can change. Always verify current eligibility and legal status directly before trading.