Quick verdict
If you want real USD deposits and the simplest US-regulated path: Kalshi.
If you want the lowest fees and the widest global market selection: Polymarket. Both are CFTC-licensed and open to US traders.
Guide · Intermediate
Kalshi vs Polymarket 2026: Which Platform Should You Use?
Head-to-head on regulation, fees, liquidity, and usability. Which one wins depends on where you live and how you fund.
Is Kalshi or Polymarket better for beginners?
Kalshi — it takes real USD via ACH or debit card, has a polished mobile app, and doesn't require a crypto wallet. Polymarket is better once you're comfortable with USDC.
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TL;DR
Kalshi = real USD, cleanest US-regulated app, ~5–7% profit fee, 47 states + DC. Polymarket = broadest global market selection, ~1% all-in cost, CFTC-licensed US app (debit/ACH) plus a USDC global platform. New US traders start with Kalshi; volume traders and sports/politics specialists prefer Polymarket.
Regulation
Kalshi is a Designated Contract Market under the CFTC, supervised like a futures exchange. Polymarket is also CFTC-licensed and available to US traders, settling on-chain in USDC.
Fees and liquidity
Kalshi charges 5–7% of profit on most markets and has solid but not enormous liquidity. Polymarket is closer to 1% all-in via spread and has billions of dollars of depth on flagship markets.
- Kalshi: ~5–7% profit fee · USD deposits · CFTC regulated
- Polymarket: ~0.5–1% spread · USDC · CFTC-licensed
Usability
Kalshi's mobile app is the cleanest in the industry. Polymarket's web app is powerful but assumes you already know what a wallet is.
Frequently asked questions
Is Kalshi or Polymarket better for beginners?
Kalshi — it takes real USD via ACH or debit card, has a polished mobile app, and doesn't require a crypto wallet. Polymarket is better once you're comfortable with USDC.
Which has lower fees?
Polymarket. All-in cost is roughly 0.5–1% via the spread; Kalshi charges 5–7% of profit on most markets. On large tickets the fee gap is significant.
Which has more liquidity?
Polymarket, by a wide margin on politics, crypto, and global sports. Kalshi wins on US-specific economic markets like Fed decisions and CPI.
Are both legal in the US?
Yes. Kalshi is a CFTC-regulated DCM; Polymarket is CFTC-licensed and open to US traders in 49 states plus DC (Nevada excluded) as of 2026.
Can I use both?
Yes, and many pros do — Kalshi for USD-native economic markets, Polymarket for size and global events.
Sources & references
About the author
Catie Di Stefano
Editor-in-Chief, PredictionWins · 15+ yrs experience
Catie has spent 15 years covering iGaming, sports betting, and now prediction markets — first as a trade reporter, later as head of editorial at two major industry publications. She has tested every regulated US event exchange since Kalshi's 2021 launch and writes the bulk of PredictionWins' platform reviews and tax explainers.
Reviewed against our editorial policy.
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