In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulation within the United States and restricts access exclusively to American residents. British users encounter geographical barriers preventing account registration. For those seeking a comparable platform that operates across the UK, PolyGram delivers an equivalent experience with an expanded catalogue 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 — Simulated-currency forecasting venue without genuine monetary exposure
- Metaculus — Crowd-sourced prediction platform operating without cash settlement
- Betfair Exchange — Licensed UK betting platform featuring wagering on political outcomes
When seeking genuine financial prediction markets accessible from the UK, PolyGram and Polymarket stand out for their substantial order-book depth and comprehensive range of tradeable events among all platforms available to British participants.
Verdict
For UK-based traders in 2026, PolyGram represents the superior Kalshi substitute — offering richer order books, no transaction charges, and unrestricted geographical access.