GammaPredict is not legal advice.
Platform terms, enforcement and product classification change. Use this as a research map, then confirm with primary sources for your jurisdiction. For the ranked shortlist see top prediction markets.
United States
Polymarket is not treated here as a US designated contract market. Confirm DCMs on CFTC DCM filings rather than treating this page as a licence lookup.
US users frequently face access restrictions on Polymarket. Do not assume you can participate. For eligible US research, start with Kalshi (regulated event contracts) and compare PredictIt for politics. Full route: best prediction markets in the USA.
United Kingdom
A UK Gambling Commission licence is a different product class from a US DCM. Confirm operators on the UK Gambling Commission public register.
UK users should verify gambling/financial product classification and platform eligibility. Polymarket may be usable for some users as a crypto venue, but Smarkets and other local-aware options still deserve a side-by-side check — see best in the UK.
European Union
EU access varies by member state. Prefer platforms that clearly state who can onboard. Compare Polymarket against on-chain and community options on best in the EU.
How to verify eligibility yourself
- Read the platform’s geographic / restricted-jurisdiction policy.
- Complete only the onboarding you are willing to attach identity/wallet to.
- If blocked, use alternatives instead of workarounds.
- For US vs crypto tradeoffs, read Polymarket vs Kalshi.
Primary sources checked September 3, 2026
Open the live register or operator page. This list is a research map, not a licence database and not legal advice.
- CFTC Industry Filings — Designated Contract Markets — US DCM operator list
- UK Gambling Commission public register — UK operator lookup
- Smarkets (Malta) Limited, UKGC record 53378
- Polymarket geographic restrictions — operator geo policy, not a DCM filing
FAQ
Is Polymarket illegal in the US?
Availability is often restricted for US persons. That is not the same as a simple “illegal/legal” label for every activity. Check current terms and prefer regulated US venues when required.
Can I use a VPN?
Bypassing geo-restrictions usually violates platform terms and can create legal/account risk. We do not recommend it.
What is the safest US alternative?
For many eligible users, Kalshi is the primary editorial starting point. Confirm state access and KYC yourself.