In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulation as a US-based prediction market and restricts access exclusively to American residents. Users outside the United States, including those in the UK, face geographical restrictions preventing account creation. For UK-based traders seeking a comparable platform, PolyGram delivers an equivalent experience with a substantially broader range of tradeable markets.
PolyGram vs Kalshi: Direct Comparison
| Feature | Kalshi | PolyGram (via Polymarket) |
|---|---|---|
| UK availability | ❌ US only | ✅ Full UK access |
| Regulation | CFTC-licensed | On-chain / UMA oracle |
| Settlement | USD | USDC (Polygon) |
| Trading fee | Up to 2.5% | 0% on PolyGram |
| Market volume | Moderate | $10B+ lifetime (Polymarket) |
| Market types | Politics, economics | Politics, sports, crypto, world events |
| API access | Yes (US) | Yes (CLOB API) |
| Mobile app | iOS/Android | PWA (iOS/Android) |
Other Kalshi Alternatives
- Manifold Markets — Prediction market using play money with no real financial exposure
- Metaculus — Forecasting platform without real-money transaction capability
- Betfair Exchange — Licensed UK betting exchange featuring political and event-based markets
Among platforms offering genuine financial stakes in prediction markets accessible to UK residents, PolyGram and Polymarket stand out for their exceptional liquidity depth and comprehensive market catalogue.
Verdict
For UK traders in 2026, PolyGram represents the superior Kalshi substitute — boasting expanded market coverage, no trading charges, and unrestricted geographical access.