7 min read
How to make money on Kalshi
Last updated · fact-checked against live Kalshi and Polymarket data
Quick answer
Key takeaways
- › Cross-venue arbitrage (Kalshi ↔ Polymarket) is the most reliable edge.
- › Niche expertise (weather, local elections) outperforms generalist guessing.
- › Risk 1–3% of bankroll per market — even big favorites lose.
- › Track expected value, not win rate.
- › Most traders lose. This is real-money trading, not entertainment.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Strategy 1: Cross-venue arbitrage
The same event often trades on both Kalshi and Polymarket. When the prices diverge by more than total fees and gas, you can buy YES on the cheaper side and YES (or sell YES) on the more expensive side and lock in profit at settlement.
Example: Spain to win World Cup quotes $0.18 on Kalshi and $0.22 on Polymarket. Buy YES at $0.18, sell YES at $0.22 → $0.04 guaranteed less fees.
Strategy 2: Niche edges
The crowd mispriced weather and small local political races repeatedly through 2025. If you genuinely know a domain — hurricane forecasting, your state legislature — Kalshi's order books are thin enough for retail-size edge.
Strategy 3: Expected-value sizing
EV = (probability × payoff) − (probability of loss × stake). If your true probability estimate exceeds the market's implied probability by enough to cover fees plus a margin of error, the trade has positive EV. Size with a fractional Kelly to survive variance.
What loses money fast
- Going all-in on a single political market because you're emotionally invested.
- Chasing losses with bigger positions.
- Trading thin markets with wide spreads.
- Ignoring fees on small, frequent trades.
Welcome offer · Kalshi
Trade $25 and get $25
New users: open a Kalshi account, trade $25 in event contracts with the code, and get $25 back.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Play responsibly
Prediction markets are real-money trading and you can lose your full stake. We recommend 21+. If trading stops feeling fun, call 1-800-GAMBLER or text 988.
Reviewed by Catie Di Stefano. Every guide follows our editorial standards & review methodology. Affiliate links are disclosed under our affiliate disclosure.