In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulation as a US-based prediction market platform. Its service scope is restricted to American residents exclusively — individuals from the United Kingdom face geographical restrictions and cannot establish accounts. For UK-based traders seeking an equivalent alternative, PolyGram delivers comparable functionality alongside an expanded range of available 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 currency with no genuine monetary value at stake
- Metaculus — Forecasting platform without real-money trading capabilities
- Betfair Exchange — Licensed UK betting exchange featuring political prediction markets
Among platforms accepting UK participants and offering genuine financial stakes, PolyGram and Polymarket stand out for their substantial trading volumes and comprehensive range of available markets.
Verdict
For UK residents in 2026, PolyGram represents the optimal Kalshi substitute — delivering superior market depth, elimination of trading costs, and unrestricted access across all regions.