In this guide
Kalshi in the UK: The Problem
Kalshi operates under CFTC regulation and serves exclusively within the United States — residents of the UK face geographic restrictions and cannot establish accounts on the platform. For those seeking a comparable prediction market accessible from British territory, PolyGram delivers an equivalent experience with substantially broader market 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 — Prediction market using play money, without genuine financial exposure
- Metaculus — Forecasting service operating without real-money wagering
- Betfair Exchange — Licensed betting exchange in the UK featuring political event markets
Among genuine-stake prediction markets available to UK participants, PolyGram and Polymarket stand out for their exceptional market depth and comprehensive range of tradeable events across any accessible jurisdiction.
Verdict
For UK-based traders in 2026, PolyGram represents the superior Kalshi substitute — offering richer liquidity pools, no transaction charges, and unrestricted account access.