Polymarket for US Traders in 2026: Legal Status, Access, and Setup Guide
Polymarket is the largest prediction market platform by volume in the world — and it operates in a legal gray area for US residents that has not fully resolved as of early 2026. This guide covers what the situation actually is, what the practical implications are for US-based traders, and how Polymarket fits into a broader prediction market strategy alongside regulated platforms like Kalshi.
The Current Legal Status
Polymarket is incorporated offshore and operates on the Polygon blockchain. The platform's terms of service have historically restricted US residents from participating, stemming from the 2022 CFTC settlement in which Polymarket agreed to pay $1.4 million and block US users as part of resolving charges related to offering binary event contracts to US persons without proper CFTC authorization.
The regulatory picture in 2026 is more nuanced than it was in 2022 or 2023. The broader shift in US crypto and prediction market regulation that began in late 2024 has created meaningful uncertainty about whether Polymarket's offshore structure might eventually be compatible with serving US users, particularly as the CFTC has signaled more flexibility toward prediction market platforms generally. However, as of this writing, the prohibition on US residents remains in Polymarket's terms of service, and no formal regulatory approval for US access has been announced.
This guide does not provide legal advice. If you are a US resident considering Polymarket, consult with a legal professional familiar with current CFTC guidance.
How Polymarket Works
Polymarket is a decentralized prediction market built on the Polygon network. To participate, you need:
1. A crypto wallet compatible with Polygon (MetaMask is the most common choice)
2. USDC on the Polygon network to fund your account
3. Familiarity with basic crypto wallet operations
Unlike Kalshi, which functions as a traditional financial exchange where you deposit dollars and trade, Polymarket positions are held in your own wallet. You are interacting directly with smart contracts, not depositing funds with a centralized intermediary. This means there is no "account balance" in the traditional sense — your positions and liquidity are tracked on-chain.
Markets on Polymarket use an automated market maker for liquidity, which means a price is always available but the spread widens as you trade larger size. Larger markets with more liquidity in the pool will give you tighter prices; thin markets will penalize you on execution.
What Polymarket Does Well
Polymarket's strength is the breadth and depth of its political and macro markets. During major election cycles, Polymarket has consistently been the deepest prediction market in the world, with volumes that dwarf anything available on regulated US platforms. The platform's decentralized structure also means it can list markets on topics that regulated exchanges might avoid for compliance reasons.
For traders who primarily focus on macro and political events — presidential elections, Fed rate decisions, geopolitical outcomes — Polymarket's liquidity advantage is real and meaningful. Tighter spreads on large positions translate directly to better economics on every trade.
What Polymarket Does Poorly
Settlement disputes are a genuine operational risk on Polymarket. The platform uses decentralized oracles and a UMA dispute resolution system to determine how markets resolve. Most of the time this works fine. Occasionally it does not, and there is no regulatory body you can appeal to when it goes wrong. Kalshi's CFTC-regulated settlement process is a meaningful structural advantage for anyone who wants legal protection.
The crypto infrastructure is also a barrier. If you are not already comfortable with wallets, gas fees, and on-chain transactions, the learning curve is real. Kalshi's experience is closer to a standard brokerage — you deposit dollars, trade, and withdraw dollars.
The Practical Recommendation for US Traders
The safest and clearest path for US-based prediction market trading in 2026 is Kalshi as your primary platform. It is fully regulated, US-domiciled, and legally unambiguous. For informational purposes — tracking global market sentiment, observing prices on events that Kalshi may not cover — Polymarket's publicly visible market data is accessible without participation.
The prediction market landscape is evolving rapidly. Regulation that clarifies the US access question for platforms like Polymarket may be closer than it has ever been. In the meantime, the movers feed on this site tracks Polymarket prices alongside Kalshi so you can observe and compare without needing to navigate the access question yourself.