GUIDE · UPDATED 2026-10-17
Kalshi Review 2026: The CFTC-Regulated Prediction Market, Tested on Paper
Verdict: Kalshi is the most institutionally boring prediction market — and that's its superpower. It operates as a CFTC-designated contract market, takes US dollar deposits from US banks, and settles in cash, which makes it the closest thing to a "brokerage for headlines". It fits US traders who want regulation and fiat rails; crypto-first traders or catalog maximalists will still prefer Polymarket.
What Kalshi is
Kalshi was the first exchange licensed by the CFTC dedicated to event contracts. Markets span economics (Fed decisions, CPI, jobs prints), politics, weather, crypto prices and — since January 2025 — sports, which quickly became the highest-volume category and the center of a national legal fight (more below).
Fees, in real numbers
Kalshi charges takers 0.07 × C × P × (1 − P), rounded up to the next cent, where C is contracts and P is price. Worked examples per 100 contracts: at 50¢ the fee is $1.75 (3.5% of notional); at 20¢ it's $1.12; at 5¢ it's $0.33. The parabolic shape means trading longshots costs proportionally more. Card deposits can carry up to a 2% surcharge; standard USD transfers are free. Some high-volume contract families carry their own schedules, so confirm in the fee schedule before sizing a trade.
The state-by-state sports fight
Sports contracts made Kalshi a household name and a legal target. In April 2026 Ohio's casino regulator proposed a multimillion-dollar penalty, and in July 2026, 44 states jointly told the CFTC it has no authority over sports-event wagering — while tribal gaming interests litigated in parallel. Meanwhile the CFTC itself proposed rules in June 2026 that could restrict contracts referencing officiating or player conduct. None of this has unwound the federal framework, but it means sports-contract availability and rules are genuinely in flux — verify your state's status before funding an account for sports, and track updates in our legal guide.
What we like / what we don't
- Pros: real exchange registration with published rulebook; USD in/out with familiar banking; automatic cash settlement; strong economics and macro catalog; tax documentation for US users.
- Cons: taker fee adds up on small longshots; sports legal exposure creates state-by-state uncertainty; catalog breadth outside headline events trails Polymarket; settlement-rule surprises exist here too if you trade the headline instead of the rule.
Who should (and shouldn't) use it
Choose Kalshi if you're a US trader who values a regulated venue, wants USD rails without touching crypto, or hedges macro events professionally. Prefer alternatives if you need the widest catalog (see Polymarket), want in-app simplicity inside an existing brokerage (Robinhood's event contracts), or trade political markets with tiny stakes (PredictIt). For the head-to-head, read Polymarket vs Kalshi.
Is Kalshi legal in every US state?
Kalshi operates nationally as a CFTC-regulated exchange, but several states have challenged its sports contracts specifically, and litigation has produced mixed rulings. Non-sports markets have not drawn comparable action. State status changes — check the latest before trading sports in a restrictive state.How does Kalshi's fee compare with a sportsbook's vig?
At 50¢, Kalshi's fee is about 1.75¢ per contract (~3.5%). Typical sportsbook vig on a balanced game is 4–5% built into worse prices. The exchange is usually cheaper on liquid markets — but the fee is visible and per-trade, so small longshot trades suffer proportionally more.Independent review — no affiliate relationship with any platform named. Educational content, not financial or legal advice. Fee formulas and legal developments verified October 2026; rules are changing quickly.
We compared regulation, fees, custody and market breadth across the big four.