In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulation within the United States exclusively. The platform restricts access to American residents only — individuals based in the UK encounter geo-blocking and cannot establish accounts. For UK-based traders seeking a comparable platform, PolyGram delivers equivalent functionality alongside broader 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 environment with no genuine financial exposure
- Metaculus — Crowd forecasting service without monetary trading capabilities
- Betfair Exchange — Licensed UK betting platform featuring political and event-based markets
Among genuine-stakes prediction platforms accessible in the UK, PolyGram and Polymarket provide unmatched order-book depth and the most comprehensive range of tradeable events on any compliant UK-friendly venue.
Verdict
PolyGram stands as the superior Kalshi substitute for UK traders throughout 2026 — offering richer liquidity, no trading charges, and unrestricted geographic access.