Kalshi Fees Explained (2026): Trading Costs and What You Pay

Kalshi charges 1–7% depending on the contract type. Unlike Polymarket, Kalshi's fee is charged at trade entry — not on profits at resolution.

Fee rates by market type

Economic data markets (Fed rates, CPI, jobs): 1–3%. Election and political markets: 3–5%. Sports markets: 4–7%. Weather: 2–4%. Check the specific contract before trading large positions.

Deposit and withdrawal fees

Kalshi does not charge fees for ACH bank transfers in either direction. Wire transfers may have bank-side fees. No crypto wallet or gas fees required.

Kalshi fees vs Polymarket fees

Polymarket charges ~2% on profits only. Kalshi charges 1–7% on the trade itself regardless of outcome. For economic data contracts at Kalshi's 1–2% tier, the fees are comparable. For sports and elections, Polymarket is typically cheaper.

Frequently asked questions

Does Kalshi charge fees on losing trades? Yes. Unlike Polymarket, Kalshi's fee is charged at entry, whether you win or lose.

What percentage does Kalshi charge? Between 1% and 7% depending on the market. Economic data contracts are typically the cheapest.

Polymarket fees → Polymarket vs Kalshi →