What Is Kalshi and How Does It Work?

TL;DR

• Kalshi is a CFTC-regulated Designated Contract Market (that designation has held since November 2020), where Yes contracts settle at $1 and No contracts settle at $0 based on a real-world event's outcome.
• You can fund a Kalshi account with a bank transfer, debit card, wire, or crypto deposit (USDC, BTC, SOL, WLD, RLUSD, or XRP), but withdrawals only route back to a linked bank account, not crypto.
• Kalshi's taker fee follows a public formula, roughly 7 cents times the contract's price times one minus that price, which peaks around 1.75 cents on a 50-cent contract and shrinks toward the extremes.
• Kalshi opened to traders in more than 140 countries in October 2025 and has led the other four platforms PredictionHero tracks, Polymarket, Limitless, Predict.Fun, and Opinion, in monthly trading volume for most of 2026.

Open Kalshi's markets page for the first time and you might expect a sportsbook. What you actually get looks more like a trading terminal: bid-ask spreads, an order book, contracts priced in cents rather than odds written as "+150."

That's by design. Kalshi is a federally regulated exchange where you trade Yes or No contracts on the outcome of real-world events: whether the Fed cuts rates in December, whether a named storm makes landfall in Florida, whether a particular bill clears the Senate. Every contract settles at $1 if you're right and $0 if you're wrong, and the price you pay reflects the market's live estimate of the odds. It isn't a casino and it isn't a sportsbook.

The Commodity Futures Trading Commission (CFTC), the same federal regulator that oversees commodity and futures exchanges like the CME, oversees Kalshi directly. That's why Kalshi can operate in all 50 states without the state-by-state licensing fight that sports betting apps still have to navigate.

What Is Kalshi, Exactly?

Kalshi is a Designated Contract Market (DCM), a CFTC-regulated derivatives exchange. The CFTC granted Kalshi that designation in November 2020, and the platform opened to public trading in July 2021 under it. The regulatory approval came first. Kalshi didn't build a following and then go looking for a regulator to bless it after the fact.

Every market on Kalshi starts as a yes-or-no question about something that will actually happen or not: will core CPI come in above 3% this month, will a specific storm system reach hurricane strength, will a named actor win Best Supporting Actor. Kalshi calls these "event contracts," a term with real legal weight. It's the mechanism that lets Kalshi argue, successfully in several federal courts so far, that it's selling federally regulated derivatives rather than running an unlicensed wagering product. For a deeper look at how that argument has fared state by state, see our full CFTC regulation breakdown.

Kalshi is one of five platforms PredictionHero tracks for this kind of event pricing, alongside Polymarket, Limitless, Predict.Fun, and Opinion. Each prices the same kinds of questions with a different user base, funding method, and regulatory footing, which is exactly why comparing them side by side (more on that below) tells you more than looking at any one in isolation.

How Does a Kalshi Contract Actually Work?

Buy a Yes contract at 30 cents and the event happens: you collect $1, a 70-cent profit on a 30-cent stake. The event doesn't happen: the contract settles at zero and you lose the 30 cents you paid. No margin call, no additional loss beyond what you put in.

The price itself is the signal, not an afterthought. A contract trading at 30 cents implies the market sees roughly a 30% chance of that outcome. As new information arrives, say a hotter-than-expected jobs report lands, traders buy and sell and the price moves to reflect it in real time.

You're never trading against Kalshi the way you'd wager against a sportsbook's house line. You're trading against other users who disagree with your read of the odds, and Kalshi just matches the orders.

Contracts don't have to be held to the end, either. Buy at 30 cents, watch the price climb to 55 cents on fresh news, and you can sell immediately to lock in the 25-cent gain instead of waiting for the event to resolve. That's a meaningful structural difference from a traditional sports wager, where you're locked in until the final whistle. It's also different from holding a Kalshi position to settlement, where you're relying on your read staying right all the way through the event actually happening.

How Are Kalshi's Prices Set?

Kalshi prices every contract through a central limit order book (CLOB), the same mechanism a stock exchange uses: buyers and sellers post limit orders, and a trade executes when a buy order and a sell order meet at the same price. There's no automated market maker setting prices algorithmically behind the scenes, Kalshi is matching real orders from real traders on both sides. Kalshi's own help center confirms the displayed price on any contract is simply its last traded price, not a theoretical midpoint.

Here's what that looks like on a real category. Say a contract asking "will the Fed cut rates at its next meeting" is trading at 68 cents. That's the market pricing roughly a 68% chance of a cut, built from actual positions rather than a single analyst's forecast.

If a Fed official gives a hawkish speech the next morning, traders start selling Yes contracts and buying No, and the price drifts down toward whatever level the order book settles into next. Nobody adjusts a dial. The price moves because the people holding capital on each side changed their minds and traded on it.

Kalshi publishes its order book over a dedicated low-latency feed aimed at quantitative trading firms and market makers, the first prediction market exchange to do so, and runs a formal, application-based market maker program with ongoing liquidity obligations for approved firms. That infrastructure is part of why Kalshi's order books on high-volume contracts, Fed decisions and major elections especially, tend to stay tight.

Is Kalshi Gambling, or Something Else?

The honest answer depends on which part of Kalshi you're asking about. Its core markets, covering macroeconomic data, politics, and weather, are uncontested: they're federally regulated event contracts, and no state has successfully argued otherwise.

Kalshi's sports event contracts are a different, actively litigated story. More than twenty states have argued those specific contracts are really just unlicensed sports wagering wearing a derivatives label, with rulings going both ways in federal court through 2026. Our full legitimacy review tracks that state-by-state fight in detail, since it's too fast-moving to summarize fairly in a paragraph here.

What doesn't change regardless of that fight: Kalshi isn't paying out based on a house-set line built to statistically favor the house the way a sportsbook's is. You're trading against other users at a price the order book sets, and Kalshi's revenue comes from trading fees, not from winning against your position. That structural difference, exchange versus bookmaker, is the thing Kalshi's own legal defense rests on, and it's also just an accurate description of how the product works mechanically. See our breakdown of prediction markets versus sportsbooks if you want the mechanics spelled out side by side.

How Do You Make Money on Kalshi?

Two ways, and they're not the same trade. First, hold a contract to settlement: buy Yes at 30 cents, the event happens, you collect the full $1. Second, trade the price movement itself: buy Yes at 30 cents, the price runs to 55 cents on new information, and you sell before the event even resolves, pocketing the 25-cent difference without ever finding out the final outcome.

Fees apply either way, and they eat into both strategies differently. A position you hold to settlement only pays the fee once, at entry. A position you trade in and out of pays the fee on both the buy and the sell, so active trading on Kalshi costs more in aggregate than a buy-and-hold-to-resolution approach on the same notional size.

Neither approach is inherently better. They're different trades: one on the eventual outcome, one on how the market's estimate of that outcome shifts in the meantime.

Making money on Kalshi, in either style, comes down to one thing: having a view on an event's probability that's better calibrated than the current price. That's a forecasting skill, not a house-favored game, which is the entire basis for Kalshi's "exchange, not sportsbook" framing above.

What Can You Actually Trade on Kalshi?

Kalshi's categories run wider than most newcomers expect. Macroeconomic data leads the list: CPI prints, jobs reports, GDP, and Fed rate decisions all get their own contract chains, often with multiple strike prices on the same release. Politics and elections cover everything from presidential races down to individual bill outcomes in Congress.

Weather contracts price named storms, hurricane landfall locations, and seasonal temperature records. Culture and awards-season contracts, Oscar winners, Grammy outcomes, cover recurring entertainment events.

Newer additions lean toward companies and markets: contracts tied to specific corporate earnings outcomes and executive departures have joined the macro and political staples over the past year. The common thread across all of it is a hard resolution date and a source Kalshi can point to for settlement, a government data release, an official vote count, a storm's recorded landfall, not an opinion.

How Do You Open a Kalshi Account and Start Trading?

Sign up with an email address, then verify your identity: full legal name, date of birth, address, and a government ID, the same tier of identity verification a US brokerage account requires. That's a real point of contrast with Polymarket's international product, which doesn't require ID for basic wallet access (its separate, CFTC-regulated Polymarket US product does require the same full verification Kalshi does). See our prediction market KYC comparison for how all five platforms handle identity checks.

Once verified, fund your account (funding options below), then browse markets by category or search for a specific contract. Placing an order works like a limit or market order on any exchange: pick Yes or No, set a price and quantity, and submit. Start reviewing live Kalshi contracts directly on Kalshi once you've read through the fee and funding details below.

How Do You Fund a Kalshi Account?

Kalshi accepts more funding methods than most people assume. ACH bank transfer and debit card (including Apple Pay and Google Pay) remain the most common entry points, with a $10 minimum for either. Wire transfers work too, with a $1,000 minimum.

Kalshi also accepts crypto deposits through a Zero Hash-powered flow: select "Add funds," choose the crypto option, and you'll be walked through sending USDC, BTC, SOL, WLD, RLUSD, or XRP to a provided address. Deposits convert to cash in your Kalshi balance, generally within about 30 minutes, and are capped at $500,000. That's a genuine update to Kalshi's reputation as a bank-only platform, crypto funding has been live for a while now, it's simply layered on top of the traditional rails rather than replacing them.

Debit card deposits carry a processing fee of roughly 2%, so a $10 debit deposit nets close to $9.80 in your account. ACH transfers carry no deposit fee.

How Do You Withdraw From Kalshi?

This is the one place the crypto option doesn't mirror the deposit side. Kalshi does not support crypto withdrawals. Regardless of how you funded your account, money comes out the same way: routed back to your linked bank account.

To withdraw, go to your account's funds section, select withdraw, enter the amount, and confirm. Processing isn't instant. Standard ACH timing applies, funds typically become available roughly two business days after the transfer itself settles, and settlement generally takes another three to five business days, so budget close to a week end to end rather than expecting same-afternoon access.

One practical catch worth knowing before you fund an account: only capital that isn't tied up in an open position is available to withdraw. If your balance is sitting in a live contract, you'll need to sell the position or wait for it to settle before that cash becomes withdrawable.

What Do Kalshi's Fees Actually Cost?

Kalshi publishes an exact formula rather than charging a flat percentage. The taker fee, what you pay to buy or sell at the current market price, runs approximately 7 cents times the contract's price times one minus that price, with the price expressed in dollars between $0.01 and $0.99. Run the math and the fee peaks at roughly 1.75 cents per contract at the 50-cent mark, the point of maximum uncertainty, and shrinks toward the extremes: a contract at 90 cents or 10 cents costs about a third of that. The maker fee, for resting limit orders that don't fill immediately, runs about a quarter of the taker fee.

The design logic is straightforward once you see the curve. Kalshi charges more to trade a contract the market is genuinely split on and less to trade one the crowd has mostly already settled. Our prediction market fees comparison lines Kalshi's formula up against Polymarket, Limitless, Predict.Fun, and Opinion if you want the full cross-platform math.

Is Kalshi Available Outside the US?

Yes, as of October 10, 2025, when Kalshi opened trading access to more than 140 countries alongside a $300 million funding round. Coverage isn't universal. Reporting around the announcement put somewhere between roughly three and four dozen jurisdictions, including France and parts of the UK, outside that access depending on the source, so check Kalshi's own current eligibility list for your specific country rather than assuming the 140-country figure covers everywhere.

Kalshi's core identity is still a US-regulated exchange built around a US retail base funding through US bank rails, even as its reach has gone global. That's worth sitting next to Polymarket's own structure, an international product with no ID requirement sitting alongside a separate, fully KYC'd Polymarket US entity, since both platforms have ended up straddling a domestic/international line, just from opposite starting points.

How Does Kalshi Compare to Polymarket, Limitless, Predict.Fun, and Opinion?

Kalshi has led the other four platforms in monthly trading volume for most of 2026, per The Block, while Polymarket remains the largest crypto-native, on-chain prediction market of the five by on-chain activity. Neither ranking makes the other platform worse. They're built around different funding rails and different user bases, and the volume lead has moved between them more than once as each platform's own growth has accelerated.

The practical takeaway: if you want a way into event markets that doesn't require a crypto wallet, Kalshi's bank and card funding is what makes that possible, with crypto now available as an option rather than a requirement. If you're comparing odds on the same event across platforms, that's where tracking the same market across all five, not any single platform's own page, tells the fuller story.

What Happens If Your Kalshi Contract Settles Against You?

The contract expires at $0, and you lose whatever you paid for it. There's no additional loss beyond your initial position, no margin call, and nothing further owed. That ceiling is one of the more underrated features of trading event contracts instead of using leverage: your downside on any single position is capped at exactly what you put into it, known upfront, before you ever place the order.

Which Platform Should You Actually Use?

That depends on what you're funding with and what you're trying to trade. If bank-grade regulation and a no-crypto-required path matter most to you, Kalshi's CFTC status and bank/card funding make it the more comfortable starting point. If you're trading internationally or want the deepest liquidity on crypto-native and global events, Polymarket is worth a look too.

Neither answer is complete on its own. See the same event priced on Kalshi and Polymarket side by side before committing capital to either one.

Sources

• CFTC. "CFTC Designates KalshiEX LLC as a Contract Market." Press release, November 2020. cftc.gov
• Kalshi. "Fee Schedule," updated July 7, 2026. kalshi.com/docs/kalshi-fee-schedule.pdf
• Kalshi Help Center. "Bank Deposits" and "Transfers FAQ." help.kalshi.com
• Kalshi Help Center. "Crypto Deposits." help.kalshi.com/fund-transfers/deposit-funds/crypto-deposits
• Kalshi Help Center. "How to Become a Market Maker on Kalshi." help.kalshi.com/en/articles/13823819
• Kalshi News. "Prices and Trades." news.kalshi.com/p/prices-and-trades
• Yogonet. "Kalshi Valued at $5 Billion as It Expands to 140 Countries." October 13, 2025. yogonet.com
• The Block. "Kalshi surges past Polymarket in volume, grabs global dominance." theblock.co
• Polymarket Help Center. "Trading Fees." help.polymarket.com/en/articles/13364478-trading-fees

PredictionHero aggregates publicly available prediction market data for informational purposes only. This is not financial advice. Prediction markets may not be available in all jurisdictions.