The Short Answer: It's Complicated
Polymarket is not legally available to US residents. The platform's terms of service explicitly prohibit American users from participating, and this restriction stems from how US regulators classify prediction market contracts.
That said, the full picture is more nuanced than a simple yes or no. The regulatory environment around prediction markets has been evolving fast, and 2025 brought some significant changes that affect how we should think about this question going into 2026.
Why Polymarket Blocks US Users
Polymarket runs on the Polygon blockchain and lets users bet on outcomes of real-world events, from elections to economic data releases to geopolitical events. In the eyes of US regulators, those contracts look a lot like derivatives.
The Commodity Futures Trading Commission (CFTC) regulates event-based contracts in the US. Under CFTC rules, offering or facilitating prediction market contracts to US persons without proper registration is illegal. Polymarket settled with the CFTC back in 2022 for $1.4 million and agreed to block US users as part of that settlement.
So the platform isn't exactly operating in secret. They acknowledged the issue, paid a fine, and put geo-blocking in place. US residents who find ways around those blocks are technically violating the platform's terms of service, and potentially running into legal gray areas themselves.
What the CFTC Actually Regulates
The CFTC's authority over prediction markets comes from the Commodity Exchange Act. Under this framework, any contract that pays out based on an event (rather than a traditional commodity price) can be classified as a "event contract" subject to federal oversight.
There are exemptions for certain contracts deemed in the public interest, but Polymarket never applied for that designation. The CFTC has historically been skeptical of political event contracts in particular, viewing them as too close to gambling on elections.
This is where things get interesting in 2026. The CFTC's own designated contract market, Kalshi, won a major legal battle in 2024 that allowed it to offer political event contracts to US users. If you want to trade on election outcomes legally in the US, Kalshi is the legitimate path. We've covered Kalshi's approach in detail in our Kalshi trading strategy guide.
Can You Use a VPN to Access Polymarket?
Yes, technically. People do it. Services like NordVPN, ExpressVPN, and ProtonVPN can mask your IP address and make it appear you're connecting from outside the US.
But here's what you need to understand before going that route.
First, it violates Polymarket's terms of service. If they detect it, your account can be banned and funds potentially frozen. Second, the legality for individual US users remains murky. The CFTC settlement was against Polymarket the company, not individual traders, but that doesn't mean US users face zero risk. Third, Polymarket uses crypto wallets, and on-chain activity is traceable. The idea that a VPN makes you invisible is partly a myth.
We're not going to tell you what to do with that information. But anyone suggesting VPN access is risk-free isn't giving you the full picture.
The Legal Alternative: Kalshi
Kalshi is the only prediction market platform that's fully regulated and legal for US residents. It operates as a CFTC-designated contract market, meaning it went through the actual regulatory process instead of getting fined and blocked.
The user experience is different from Polymarket. Kalshi has fewer markets, typically doesn't use crypto, and the interface feels more like a traditional brokerage than a DeFi app. Liquidity on some markets is thinner than Polymarket's.
That said, after Kalshi's 2024 court victory over the CFTC on political contracts, the platform has expanded significantly. Election markets, economic indicator contracts, and Fed rate decision markets are all available legally to Americans now. It's not a perfect substitute for Polymarket, but it's the one that doesn't put you in legal jeopardy.
If you're interested in using AI tools to inform your predictions on platforms like Kalshi, our article on best AI geopolitical risk analysis tools covers some genuinely useful options.
What Changed in 2025 and 2026
The regulatory environment shifted more in 2025 than it had in the previous decade. A few key developments:
- Kalshi's expansion: Following its court win, Kalshi grew its market offerings substantially and started competing more directly with Polymarket's breadth.
- Crypto regulatory clarity: The broader push for crypto regulation in 2025 brought more scrutiny to DeFi platforms, including prediction markets built on blockchains.
- Political attention: Polymarket became famous during the 2024 election cycle. That visibility attracted both users and regulatory attention. The platform was cited in congressional hearings about prediction market oversight.
- CFTC leadership changes: New CFTC leadership in 2025 signaled a slightly more open stance toward prediction markets generally, though no formal rule changes had been implemented as of early 2026.
The net result is that the question "is Polymarket legal in the US?" has the same technical answer it did in 2022 (no), but the broader policy direction suggests things could change. The CFTC appears more open to discussion than it was five years ago.
Why Polymarket Matters Despite the Restrictions
Polymarket's markets have proven to be remarkably accurate. During the 2024 US election, Polymarket odds for Donald Trump were significantly higher than most polling averages weeks before election day. This wasn't random noise. It was aggregated information from people willing to put money behind their predictions.
This is why researchers, journalists, and analysts around the world pay attention to Polymarket odds even if they can't trade on them. The information signal is real.
For US-based people who use AI research tools like Perplexity AI to track geopolitical and market developments, Polymarket's public data is worth monitoring even if you trade on Kalshi instead. You can view market odds without an account.
The Tax Question
Let's say you're a US person who somehow participated in Polymarket. What about taxes?
The IRS doesn't care whether your income came from an illegal source. Gains from prediction market trading are taxable. If you won money on Polymarket through a VPN, you'd still owe taxes on those gains, likely classified as short-term capital gains or gambling income depending on how the IRS treats the specific contract type.
The problem is you'd be reporting income from an activity that regulators say you weren't supposed to engage in. That's a messy position to be in. Consult a tax professional if you're actually in this situation. We can't give legal or tax advice, and anyone who tells you prediction market winnings are tax-free doesn't know what they're talking about.
How Prediction Markets Fit Into a Broader Investment Approach
Prediction markets are speculative by nature. Even the most sophisticated users treat them as a small slice of their overall financial activity, not a primary investment vehicle.
If you're interested in using data and AI tools to make better financial decisions more broadly, there are plenty of legal options. Platforms like Betterment and Wealthfront use algorithmic approaches to portfolio management. We've compared them head-to-head in our Wealthfront vs Betterment review. Tools like TradingView and TrendSpider can help with market analysis. QuantConnect is worth exploring for more quantitative approaches.
Prediction markets are interesting and the accuracy data is compelling. But they work best as one input among many, not a replacement for a thoughtful overall strategy.
What to Do If You Want to Participate Legally
Here's a practical summary for US residents in 2026:
- Use Kalshi. It's regulated, legal, and has grown substantially. The markets aren't as deep as Polymarket's on every topic, but it's improving.
- Monitor Polymarket data without an account. The public odds are visible to anyone. Use them as a signal without trading.
- Watch for regulatory changes. The CFTC's posture is shifting. New rules allowing more prediction market activity for US users could emerge in 2026 or 2027. Following CFTC announcements is worthwhile if this space interests you.
- Don't assume VPN access is safe. The legal and financial risks are real, even if enforcement against individual users has been minimal so far.
The Bottom Line
Polymarket is not legal for US residents. That's the straightforward answer. The 2022 CFTC settlement made that explicit, and nothing in 2025 or early 2026 changed that status.
The more interesting question is whether that will change. The regulatory winds are shifting. Kalshi's court victory proved that US regulators can accommodate prediction markets within existing law when the platform does the work to get properly licensed. Polymarket, as a crypto-native platform, hasn't gone that route.
For now, if you're in the US and want to participate in prediction markets legally, Kalshi is your option. If you just want the information signal that Polymarket provides, the public data is freely available. And if you're thinking about using AI tools to sharpen your predictions, our coverage of AI geopolitical intelligence tools is a good place to start.
The prediction market space is genuinely worth paying attention to. It's just worth doing legally.