In this guide
Kalshi in the UK: The Problem
Kalshi operates as a US-regulated prediction market under CFTC licensing. The platform restricts access exclusively to United States residents, meaning British users face a geographical barrier and cannot establish accounts. For those in the UK seeking a comparable platform, PolyGram stands out as the most suitable replacement, offering a broader 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 — Virtual-currency forecasting venue with no real monetary exposure
- Metaculus — Prediction platform focused on forecasting accuracy rather than financial trading
- Betfair Exchange — Licensed UK betting exchange featuring political markets and real-money wagering
Among genuine money-backed prediction markets accessible to UK residents, PolyGram and Polymarket deliver the strongest order books and most comprehensive event coverage of any platform in the region.
Verdict
PolyGram represents the superior Kalshi substitute for British traders during 2026 — it boasts richer liquidity pools, charges no trading fees, and imposes no territorial access limits.