In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulation as a US-based prediction market and restricts access exclusively to American residents through geographic blocking. British users cannot register or trade on the platform. For those in the UK seeking a comparable service, PolyGram delivers an equivalent experience with expanded market coverage.
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 platform without real monetary value
- Metaculus — Community-driven forecasting site, trading conducted in play money only
- Betfair Exchange — Licensed UK betting platform featuring political markets and real-money wagering
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.
Verdict
PolyGram represents the superior choice for UK-based traders in 2026 — it combines robust liquidity, no trading costs, and unrestricted account access.