What Is Kalshi? How It Works, Fees, and Whether It’s Worth It
Kalshi is a federally regulated prediction market exchange where you trade contracts on real-world events. This guide covers the mechanics, fees, legality, and key differences from other platforms — in plain English.
How Does Kalshi Work?
Every Kalshi market is a YES/NO question: “Will the Fed cut rates in March?” or “Will the Chiefs win the Super Bowl?” You buy YES or NO contracts. Each contract pays exactly $1 if it resolves in your favor and $0 if it doesn’t.
The price of a contract — say, 62¢ — is the market’s implied probability that the event will happen. A 62¢ YES contract means the market collectively estimates a 62% chance. If you think the true probability is higher, you have a potential edge buying YES. If you think it’s lower, you can buy NO at 38¢ (100¢ minus 62¢).
Converting between prediction market prices, implied probabilities, and familiar formats like American or decimal odds can be confusing. The Prediction Market Translator does that conversion automatically. For a broader look at how event contracts are structured and regulated, see What Is an Event Contract? New to prediction markets entirely? The step-by-step beginner guide walks you through your first trade.
How Kalshi Payouts Work
Settlement is binary: your contracts are worth $1 each if correct, $0 if wrong. Here’s how the math plays out for a 60¢ YES contract (before fees):
| Scenario | You paid | Settlement | Net P&L |
|---|---|---|---|
| Buy YES, event happens | $0.60 | $1.00 | +$0.40 |
| Buy YES, event doesn't happen | $0.60 | $0.00 | −$0.60 |
| Buy NO, event doesn't happen | $0.40 | $1.00 | +$0.60 |
| Buy NO, event happens | $0.40 | $0.00 | −$0.40 |
Fees not included. Actual net P&L will be slightly lower after platform fees are applied.
What Does Slippage Mean on Kalshi?
Kalshi uses an order book, not a fixed-price interface. When you place a market order, you’re matched against existing limit orders. If there isn’t enough liquidity at the best price, your order fills at progressively worse prices — that difference is slippage.
Kalshi lets you set a slippage tolerance to cap how far your fill price can deviate from the quoted price. For larger orders in lower-liquidity markets, always check the order book depth before trading. A 60¢ quote on a thin market might actually fill at 63–65¢ for a meaningful position size.
Kalshi Fees Explained
Kalshi charges a taker fee on each transaction. The fee is not a flat percentage of your trade size — it peaks at contracts priced near 50¢ and shrinks as the price approaches 0¢ or 100¢:
At 50¢, that works out to 1.75¢ per contract. At 20¢ or 80¢, it’s about 1.12¢. At extreme prices (5¢ or 95¢), fees are very small — but so are your potential margins. Fees apply to both the opening trade and the closing trade if you exit early.
For a detailed side-by-side comparison, see Prediction Market Fees Compared. To see exactly how fees affect a specific trade, use the No-Vig Calculator.
Is Kalshi Legal?
At the federal level, yes. Kalshi is registered with the CFTC as both a Designated Contract Market (DCM) and a Derivatives Clearing Organization (DCO). That regulatory status is what allowed Kalshi to launch election and sports markets that competitors couldn’t offer.
At the state level, the picture is more complicated. Several states — including Massachusetts, Nevada, and Arizona — have argued that certain Kalshi contracts, particularly sports-event contracts, constitute unlawful sports wagering under state law and preempt federal regulation. That litigation is ongoing as of early 2026. Kalshi has restricted access for users in some states.
The legal landscape may change. Always check whether Kalshi is available in your state before funding an account.
Is Kalshi Legit?
Yes. Kalshi is a federally regulated financial exchange — not a sportsbook, offshore gambling site, or crypto exchange. Here are the facts:
That said, “legit” and “risk-free” are not the same thing. You can absolutely lose money trading on Kalshi. The platform is legitimate; the outcomes are not guaranteed. Most retail traders on prediction markets lose money over time, particularly after fees.
How to Make Money on Kalshi
Disclaimer: Most retail traders on prediction markets lose money over time. The following is educational, not a trading strategy recommendation.
Information edge. Profitable prediction market trading requires knowing something the market doesn’t — a better model, faster data, or domain expertise in a niche area. Without an information edge, fees guarantee a gradual loss.
Probability thinking. Frame every market in terms of probabilities, not outcomes. A 70¢ contract that resolves NO still might have been the correct trade if your research gave it 50% — you had a genuine edge, it just didn’t hit.
Risk management. Never put more than a small fraction of your trading balance on a single contract. Position sizing matters more than picking winners. Use the Kelly Calculator to see a mathematically grounded position size for any trade.
Structural awareness. Understand how fees erode thin edges. A 3-point edge disappears quickly after two-way fees on entry and exit. High-confidence, wide edge trades are structurally better than marginal ones.
A separate strategy worth understanding is cross-platform arbitrage — exploiting price discrepancies between Kalshi and Polymarket on the same event. The math is different from edge-based trading, and fees are the primary obstacle.
How to Parlay on Kalshi
Kalshi launched “Combos” in late 2025 — its version of parlays. You bundle two or more event legs into a single contract. If all legs resolve in your favor, you win; if any leg misses, you lose the entire stake.
Unlike traditional parlays with fixed multipliers, Kalshi Combos use a Request for Quote (RFQ) system: market makers submit competing quotes and Kalshi shows you the best available price. As of early 2026, Combos are available for NFL, NBA, and Mention markets.
To understand how parlay math works and evaluate whether a combo price is fair, use the Parlay Calculator.
Kalshi vs. Polymarket vs. PredictIt
The three major English-language prediction markets differ significantly in regulation, fees, and market selection. For a deeper breakdown, see the Kalshi vs. Polymarket comparison.
| Kalshi | Polymarket | PredictIt | |
|---|---|---|---|
| Regulation | CFTC-regulated DCM/DCO | Historically offshore; has taken steps toward regulated U.S. operations through CFTC-registered infrastructure | Operates in the U.S. under an evolving regulatory framework. Review PredictIt’s current terms before trading. |
| Fees | ~3.5% at midpoint | ~2% taker fee | 10% profit + 5% withdrawal |
| Markets | Broad: politics, sports, econ, weather | Crypto, politics, current events | Primarily US politics |
| US Access | Yes (some state restrictions) | U.S. availability evolving — confirm current onboarding rules | Yes (contract limits recently expanded) |
| Parlays | Yes (Combos, launched 2025) | No | No |
How to Get Started on Kalshi
Risk disclosure: This guide is educational and does not recommend that any reader open an account or place a trade. Prediction market trading involves risk, including the risk of losing your entire investment.
- 1
Verify eligibility
You must be 18+ and a US resident. Check whether Kalshi is currently available in your state — restrictions apply in some jurisdictions.
- 2
Create an account
Sign up at Kalshi and complete identity verification (KYC). This is required by CFTC regulations and typically takes a few minutes.
- 3
Fund your account
Deposit via ACH bank transfer. Start small — there is no minimum deposit requirement, and there is no reason to fund more than you can afford to lose.
- 4
Learn the interface
Browse markets before trading. Look at the order book, understand the bid/ask spread, and note the contract resolution criteria before committing capital.
- 5
Use free tools to evaluate pricing and risk
Before placing any trade, use ChanceMetrics tools to understand pricing, payouts, fees, and how the market compares with your own probability estimate.
Explore Kalshi event markets
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Frequently Asked Questions
Common questions about how Kalshi works, eligibility, fees, and taxes.
How old do you have to be to use Kalshi?
You must be at least 18 years old and a US resident.
How long does it take Kalshi to pay out?
Markets settle shortly after the event resolves (usually within hours). Withdrawals via ACH take 2-5 business days.
Is Kalshi gambling?
Under federal commodities law, Kalshi operates as a CFTC-regulated derivatives exchange rather than a traditional gambling operator. But several states have argued that at least some Kalshi contracts — especially sports-related contracts — are effectively unlawful sports wagering under state law. That issue is still being litigated.
Can you lose more than you invest on Kalshi?
No. The maximum you can lose on a fully paid position is the price you paid for your contracts. There are no margin calls or negative balances.
How does Kalshi make money?
Through trading fees charged on each transaction. Unlike a sportsbook (which profits when you lose), Kalshi earns revenue regardless of which side wins.
What are Kalshi Combos?
Combos are Kalshi's parlay-style feature, launched in late 2025. You bundle multiple event legs into a single contract. Market makers price the combo via a Request for Quote system. Currently available for NFL, NBA, and Mention markets.
Are Kalshi winnings taxed?
Tax treatment can be complex and may depend on the specific contract, how you trade, and your individual circumstances. Some tax practitioners have argued that certain CFTC-regulated event contracts could potentially receive Section 1256 treatment, but this is not clearly settled. Consult a qualified tax professional.
Does Kalshi pay out real money?
Yes. When a contract resolves in your favor, your account is credited with the payout. You can withdraw funds via ACH bank transfer. Withdrawals typically take 2–5 business days.
Do most people lose money on Kalshi?
Kalshi does not publish aggregate user performance data. However, prediction markets — like all speculative markets — are structurally difficult for retail participants. Fees reduce expected returns on every trade, and without a genuine information edge, the math works against you over time.
Does Kalshi work in Texas?
Yes. Kalshi is available in all 50 U.S. states. As a CFTC-regulated exchange, Kalshi operates under federal jurisdiction rather than state-by-state gambling regulations. Texas residents can open an account, deposit funds, and trade event contracts. You must be 18 or older and a U.S. resident. Note: Kalshi does not offer sports betting — it provides event contracts on topics like economics, weather, politics, and financials.
Is Kalshi legal in the United States?
Yes. Kalshi is regulated by the Commodity Futures Trading Commission (CFTC) as a designated contract market. It operates legally under federal regulation. Event contracts on Kalshi are classified as commodity derivatives, not gambling, which is why they fall under CFTC oversight rather than state gaming commissions.
Is Kalshi legit?
Yes. Kalshi is a CFTC-designated contract market (approved November 2020) with a registered derivatives clearing organization (Kalshi Klear, approved August 2024). It is backed by investors including Sequoia Capital, Charles Schwab, and Henry Kravis, segregates customer funds in compliance with CFTC rules, and settles contracts against publicly verifiable data sources. That said, legitimacy does not mean risk-free — Kalshi discloses that most retail participants lose money, which is consistent with other derivatives exchanges.
Is Kalshi safe to use?
Kalshi segregates customer funds per CFTC requirements, meaning your deposited funds are held separately from Kalshi's operating capital. The exchange also operates its own registered clearing organization (Kalshi Klear), which reduces counterparty risk. Deposits via ACH are free, and the platform uses standard identity verification (KYC) including SSN. No exchange is completely without risk, but Kalshi's regulatory structure provides more transparency than unregulated alternatives.
Can I trade Kalshi markets through Robinhood?
Yes. Robinhood offers event contracts through Robinhood Derivatives, routing some markets through KalshiEX and ForecastEX. The experience differs from trading directly on Kalshi — Robinhood charges a flat $0.02 per contract per side, while Kalshi uses a formula-based fee that varies by price. Market selection may also differ. For a fee comparison, see our Prediction Market Fees Compared tool.
Is my money safe on Kalshi?
Kalshi is required by CFTC regulation to hold member funds in segregated accounts at regulated banks, separate from the company's own operating capital. This is the same fund protection structure used by other regulated futures exchanges. That said, your trading capital is still at risk — you can lose money on trades.
What is the Kalshi controversy?
Kalshi has faced legal challenges from several U.S. states that argue certain contracts — particularly sports-event contracts — constitute unlawful sports wagering under state law. The CFTC itself initially blocked Kalshi's election contracts before a federal court ruled in Kalshi's favor in 2024. These legal questions are ongoing as of early 2026.
Why does Kalshi need SSN?
Kalshi is required by federal law to verify the identity of every user. As a CFTC-regulated exchange, it must comply with Know Your Customer (KYC) and Anti-Money Laundering (AML) requirements, which include collecting your Social Security Number during account registration.
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Educational content only. This article is for informational purposes and does not constitute financial, legal, or tax advice. Prediction market trading carries significant risk. Past results, fee estimates, and legal summaries may not reflect current conditions. Always consult a qualified professional before making financial decisions.
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