Polymarket vs Kalshi: Full Comparison
After scoring both platforms across fees, liquidity, regions, payout speed, ease of use and trust, Kalshi wins overall at 9.1/10 vs 8.8/10 for Polymarket. Read on for the section-by-section breakdown and which platform suits your use case.
Side-by-side comparison
| Metric | Polymarket | Kalshi |
|---|---|---|
| Fees | 0% trading fees | Up to 2% (variable) |
| Liquidity | 9.6/10 | 9.0/10 |
| Supported regions | Global (excl. some jurisdictions) | USA + expanding internationally |
| Payout speed | Minutes (USDC on Polygon) | 1–3 business days (ACH / debit) |
| Ease of use | 9.0/10 | 9.4/10 |
| Trust score | 8.7/10 | 9.7/10 |
Polymarket
Kalshi
Fees
Polymarket charges 0% trading fees. Kalshi charges Up to 2% (variable). On our normalized fee score Polymarket comes out ahead (9.4/10 vs 8.2/10).
Liquidity & markets
Polymarket covers politics, crypto, sports, culture; Kalshi covers economics, politics, weather, sports, culture. Order-book depth favors Polymarket, so large orders fill with less slippage there.
Supported regions
Polymarket: Global (excl. some jurisdictions). Kalshi: USA + expanding internationally. Always confirm eligibility from your jurisdiction before funding an account.
Payout speed
Polymarket: Minutes (USDC on Polygon). Kalshi: 1–3 business days (ACH / debit).
Ease of use
Both platforms offer a mobile experience with native apps. Our UX scoring puts Kalshi in front for onboarding and daily trading flow.
Safety & trust
Polymarket operates under CFTC-registered (via QCX). Kalshi operates under CFTC-regulated exchange (USA). On our trust score Kalshi rates higher.