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Is Polymarket legal in US? What traders need to know

Short answer: retail US users cannot place new orders on polymarket.com. Polymarket blocks US-origin trading on its main site; the platform operates a separate, CFTC-regulated pathway that requires KYC for US customers. That means you cannot lawfully trade via the standard Polymarket web UI from a US IP, and VPNs are prohibited by the Terms of Service. If you’re an arbitrage trader, tools like PolyArb can run legal strategies where you are allowed to trade and help you capture edges where permitted.

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How Polymarket’s US policy works

Polymarket geo-blocks orders by IP: US-origin users are blocked from creating new orders on polymarket.com. The platform documents that a distinct, CFTC-regulated access route exists for US customers which enforces identity verification (KYC) and other compliance controls. This split exists so Polymarket can offer prediction markets globally while complying with US regulatory requirements. You should not use VPNs or other location-masking techniques to bypass geo-blocking. Polymarket’s Terms of Service prohibit evasion, and doing so may expose you to account suspension or legal risk.

What this means for traders in the US

If you’re in the US and want to trade on Polymarket, expect to go through the regulated onboarding route which includes KYC and additional limits. The standard Polymarket experience (gasless trades, pUSD, CLOB access) still operates, but only after you complete the CFTC-approved process. Non-US residents generally use the main site without that extra KYC requirement. Maker fees on Polymarket are zero and taker fees vary by category; check Polymarket’s fee disclosure for current rates before trading.

Alternatives and cross-platform context

Other platforms exist (Kalshi, PredictIt, Manifold) with different regulatory setups; each has its own access rules and fee models. Cross-platform arbitrage is possible in principle but is outside PolyArb’s core focus, which is intra-Polymarket arbitrage using Polymarket’s CLOB and CTF mechanics. Remember that any cross-platform movement introduces settlement and counterparty differences that change risk dynamics. Historical note: arbitrageurs captured significant value on Polymarket markets in the past, but every platform’s compliance posture differs and should be verified before you trade.

How PolyArb fits in — practical benefits

PolyArb is a non-custodial arbitrage bot that runs today: $99/month, 40ms latency versus ~800ms for free bots, and a $7.62 minimum guaranteed edge per trade. It sends Telegram and Discord alerts and connects to Polymarket’s CLOB for order execution while preserving user custody of funds. Use PolyArb to detect intra-market binary and combinatorial edges where your jurisdiction and Polymarket’s rules allow trading.

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FAQ

Can US users create Polymarket accounts without KYC?
No. US users cannot place new orders on polymarket.com; the platform provides a separate CFTC-regulated pathway that requires KYC for US customers.
Is using a VPN to access Polymarket allowed?
No. VPNs and IP masking to bypass geo-blocking violate Polymarket’s Terms of Service and can lead to suspension or other consequences.
Can PolyArb trade on my behalf from the US?
PolyArb is non-custodial and does not bypass Polymarket’s compliance controls. If your jurisdiction requires KYC on Polymarket, you must complete the required onboarding before trading with any bot.

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