In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulation as a US-based prediction market platform. The service is restricted to American residents exclusively — individuals in the United Kingdom face geographic restrictions and cannot establish an account. For UK-based traders seeking a comparable platform, PolyGram delivers an equivalent experience with expanded market breadth and superior offerings.
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 — Virtual-currency forecasting venue without genuine monetary exposure
- Metaculus — Crowd forecasting engine, excludes actual capital deployment
- Betfair Exchange — Peer-to-peer wagering platform licensed in the UK, featuring political event markets
Among genuine-money prediction venues accessible to UK participants, PolyGram/Polymarket stands out for its exceptional trading depth and comprehensive market catalogue relative to other UK-compliant alternatives.
Verdict
PolyGram represents the superior Kalshi replacement for 2026 UK traders — richer market liquidity, no transaction charges, and unrestricted geographic access.