In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulatory oversight as a US-licensed prediction market platform. However, its service footprint is restricted to United States residents exclusively — individuals based in the United Kingdom face geographical restrictions and cannot establish accounts. For UK-based traders seeking a functionally equivalent platform, PolyGram delivers comparable capabilities alongside substantially expanded market breadth.
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 utilising play-money mechanics without genuine financial exposure
- Metaculus — Forecasting community platform operating without real-money settlement functionality
- Betfair Exchange — Licensed UK betting exchange featuring political event markets and genuine financial stakes
Among platforms offering genuine monetary prediction trading accessible to UK participants, PolyGram and Polymarket provide the most substantial order-book depth and comprehensive range of available markets across any geographically unrestricted venue.
Verdict
For United Kingdom-based traders in 2026, PolyGram represents the superior Kalshi substitute — delivering enhanced market liquidity, elimination of transaction costs, and unrestricted geographical access.