Kalshi vs. Polymarket: Event Contracts, CFTC Rules, Fees, and How Are They Different

In 2026, Kalshi is generally better suited to users who prioritize regulatory clarity and fiat access, while Polymarket is better suited to eligible crypto-native traders who want a wider range of global event markets.

This guide compares Kalshi vs. Polymarket across CFTC regulation, fees, liquidity, market selection, funding, settlement, and trading experience to help you decide which prediction market better fits your needs.

Key Takeaways

• Kalshi is a CFTC-regulated Designated Contract Market (DCM) and offers event contracts through a more traditional exchange-style experience. Polymarket operates two distinct products: CFTC-regulated Polymarket US and the separate international Polymarket platform.

• Kalshi is generally more finance-oriented, with strong coverage of economic indicators, elections, weather, sports, and other measurable events. International Polymarket is known for a much broader mix of politics, geopolitics, crypto, culture, technology, and internet-driven markets.

• Funding differs considerably. Kalshi increasingly supports both traditional payment methods and crypto funding, while international Polymarket remains primarily USDC and blockchain-based. 

• Neither platform has one universally cheaper fee structure. Kalshi fees depend on the contract, while Polymarket introduced category- and probability-dependent taker fees across many markets in 2026. Traders should compare fees, spreads, and liquidity before entering a position. 

Kalshi vs. Polymarket: Which One Should You Use?

Choose Kalshi if you want a regulated exchange-style prediction market with strong market event coverage and conventional funding options. Opt for international Polymarket if you are eligible to use it and want crypto-native settlement plus a much broader range of international politics, crypto, culture, and fast-moving event markets.

For U.S. residents, however, the relevant comparison is primarily Kalshi vs. Polymarket US, not Kalshi vs. Polymarket.com.

Polymarket explicitly separates its products. The global site serves eligible international users, while U.S. users must use the separate Polymarket US product. The accounts are not interchangeable. 

Kalshi vs. Polymarket at a Glance

What Are Prediction Markets and Event Contracts?

Prediction markets allow traders to buy and sell contracts based on whether a future event will occur.

Instead of taking a position directly on Bitcoin, a stock, or a commodity, a trader might take a position on questions such as:

• Will the Federal Reserve cut rates at its next meeting?

• Will a particular candidate win an election?

• Will Bitcoin trade above a certain price by a specified date?

• Will inflation exceed a particular level?

• Will a sports team win its next game?

Many prediction-market contracts are binary.

A "Yes" contract may settle at $1 if the specified event happens and $0 if it does not. A No contract represents the opposite outcome.

For example, if a "Yes" contract trades at $0.65, traders often interpret the market price as roughly a 65% implied probability of that outcome occurring.

That does not mean the event has a true 65% chance of happening. It means buyers and sellers currently value the contract at approximately that level.

For traders familiar with crypto futures or options, the order-book mechanics are relatively intuitive. The major difference is that the underlying reference is an event outcome rather than simply an asset price.

How Does the CFTC Regulate Prediction Markets?

The Commodity Futures Trading Commission (CFTC) regulates U.S. commodity derivatives markets, including event contracts listed on CFTC-regulated Designated Contract Markets.

Kalshi obtained its DCM designation in November 2020. QCX LLC, which now operates as Polymarket US, is also a CFTC-designated DCM. 

This is important because the regulatory status applies to the specific registered exchange, not automatically to every product carrying the same brand.

Therefore:

• KalshiEX LLC is CFTC-regulated.

• Polymarket US/QCX LLC is CFTC-regulated.

• International Polymarket.com is not a CFTC-regulated DCM.

Polymarket itself explicitly states that its international platform operates independently from Polymarket US and is not regulated by the CFTC. 

CFTC Rules and State Gambling Laws

One of the biggest legal issues surrounding prediction markets in 2026 is the dispute between federal derivatives regulation and state gambling laws.

The CFTC has repeatedly argued that Congress granted it exclusive authority over derivatives traded on federally regulated DCMs. Several U.S. states, however, have attempted to apply state gaming or sports-betting rules to certain prediction-market contracts.

During 2026, the CFTC brought or participated in litigation involving states including New York, Wisconsin, Arizona, Connecticut, Illinois, Massachusetts, New Mexico, Kentucky, and others over these jurisdictional questions.

So it is too simplistic to say that CFTC registration eliminates all state-level legal disputes.

Federally regulated platforms like Kalshi also operate under federal oversight and enforce strict Know-Your-Customer (KYC) identity verification for U.S. users.

CFTC-regulated prediction markets operate under a federal derivatives framework, while the scope of state authority over certain event contracts—especially sports-related markets—continues to be contested in court.

Kalshi: Overview, Regulation, and Markets

Kalshi was one of the first dedicated prediction-market platforms to build around U.S. federal derivatives regulation. The company received its CFTC DCM designation on November 3, 2020.

Its interface resembles a financial trading platform more than a sportsbook, though it is generally user-friendly and easy to navigate. Users trade Kalshi products through an order book and can generally enter or exit positions before settlement.

What Can You Trade on Kalshi?

Kalshi lists markets across areas such as, with both sports coverage and non-sports markets shaped by regulated listing standards:

Sure — I’d make it much more scannable like this:

Polymarket: Global Crypto-Native Prediction Markets

Polymarket built its reputation very differently.

The original Polymarket platform became popular as a crypto-native platform in the broader prediction market space, covering everything from elections and geopolitics to cryptocurrency prices, technology, culture, and viral internet events.

International Polymarket uses blockchain infrastructure, smart contracts, and USDC settlement, which also gives users public on-chain visibility into transaction histories.

Its appeal is primarily market breadth and speed. Markets can appear around rapidly developing news stories, global political events, crypto narratives, and topics that may never become suitable contracts on a conventional regulated U.S. derivatives exchange.

However, its regulatory structure requires careful explanation.

Polymarket US vs. Polymarket.com

This is the most important distinction in the entire Kalshi vs. Polymarket comparison.

Polymarket US

Polymarket US is operated by QCX LLC d/b/a Polymarket US, which received its DCM designation in July 2025. It operates within the U.S. federal derivatives framework.

Polymarket’s U.S. product is separate from the international website, including separate accounts and support systems. As of June 2026, Polymarket stated that its U.S. product was available through its iOS app while an Android app was still forthcoming. 

International Polymarket

Polymarket.com is a separate international product that typically requires users to connect a Web3 crypto wallet to trade. It uses crypto infrastructure, settles primarily using USDC, and covers substantially broader international and niche markets, a setup that suits a crypto-native trading style more than a conventional brokerage workflow. It does not operate as a CFTC-regulated DCM nor it can be used to place trades from restricted jurisdictions.

As of August 2026, Polymarket’s geographic-restriction documentation lists the United States as blocked from the international platform. A number of other jurisdictions are also blocked or restricted.

This distinction should never be blurred into the statement that “Polymarket is CFTC-regulated.”

Polymarket US is. Polymarket.com is not the same.

Kalshi vs. Polymarket: Markets and Event Coverage

Market selection is one of the biggest practical differences.

Where Kalshi Is Strong

Kalshi’s regulated structure is particularly well suited to events with clearly defined, objectively verifiable outcomes, including:

• global economic indicators;

• Federal Reserve decisions;

• elections and political outcomes;

• weather;

• financial events;

• major sports events.

Its active markets are often concentrated in regulated U.S. event categories, especially economics and major sports. Liquidity varies by contract, so some thinner markets can still have wider spreads.

Its strength is not necessarily having more markets. It is providing markets within a standardized, federally regulated exchange framework.

Where International Polymarket Is Strong

Polymarket.com tends to offer greater variety across political markets, global politics, culture markets, and other fast-moving non-U.S. categories:

• international elections;

• geopolitical events;

• crypto markets;

• technology;

• culture;

• internet trends;

• entertainment;

• unusual or highly specific current events.

This broader non-sports market category mix is a major reason many users prefer international Polymarket for global event trading.

This is one reason Polymarket frequently appears in news coverage: its markets often become real-time indicators of how traders view fast-moving political or geopolitical developments.

Which Has Better Market Coverage?

For U.S. macroeconomic and regulated event trading, Kalshi is often the more natural fit, while Polymarket generally reaches further across future events beyond traditional sports and finance.

For international politics, crypto, geopolitics, and niche current events, international Polymarket generally offers greater breadth. But market availability changes constantly, so traders should compare the actual contracts listed rather than assuming one platform always leads a category. In practice, the polymarket debate often comes down to whether you value regulated structure or broader event coverage.

Trading Mechanics: Kalshi vs. Polymarket

Both platforms use exchange-style markets where buyers and sellers interact rather than relying on a sportsbook to unilaterally set odds.

They center on trading event contracts rather than fixed-odds betting.

Typical binary contracts trade between approximately $0.01 and $0.99 before resolution.

If a "Yes" contract resolves correctly, it generally pays $1. If the outcome is false, it settles at $0.

Traders can also usually close a position before resolution by selling into the market, but how a contract settles is a key mechanic to understand before entering a position.

Why Liquidity Matters

Suppose you want to buy 1,000 contracts at $0.50. If only 200 contracts are available at $0.50 and the rest are offered at progressively higher prices, your average execution price will increase.

That is slippage.

Prediction markets can have dramatically different liquidity from one contract to another.

Major elections, high-profile geopolitical events, or major sports markets may attract significant volume, while obscure contracts may have shallow order books and wide bid-ask spreads.

Instead of asking simply “Which platform has more liquidity?”, traders should compare:

• bid-ask spread;

• visible order-book depth;

• recent trading volume;

• open interest where available;

• expected slippage at their desired trade size.

The best platform may therefore differ from one event to another.

Kalshi vs. Polymarket Fees in 2026

Kalshi Fees

Kalshi does not use one simple flat trading fee for every contract. Its trading fees depend on the relevant fee schedule and contract structure. Its February 2026 fee schedule confirms:

• no membership fee;

• no settlement fee;

• no Kalshi fee for ACH deposits or withdrawals;

• card-deposit fees of up to 2%;

• wire-transfer charges may depend on the user’s bank;

• crypto transfers may involve fees from third-party payment processors. 

Kalshi has also expanded its available payment methods considerably. Its current transfer options include debit cards, ACH, PayPal, Venmo, Cash App for deposits, crypto, and wire transfers, subject to location and eligibility. Please refer to their Help Center.

International Polymarket (Polymarket.com) Fees

Polymarket significantly changed its fee structure in 2026.

Rather than charging a simple universal percentage on every trade, Polymarket charges taker fees on eligible market categories using:

Fee = Contracts × Fee Rate × Price × (1 − Price)

The fee therefore depends partly on the contract price. Polymarket currently lists different fee parameters for categories including crypto, sports, finance, politics, economics, culture, weather and technology.

Geopolitical and world-event markets can remain fee-free.

Makers generally pay no trading fee, while a portion of collected taker fees is distributed through maker-rebate programs. 

Because the fee curve peaks near a 50% probability contract, the effective cost cannot accurately be described simply as “0.30%” or “1.80%.”

Polymarket US Fees

Polymarket US also uses a probability-dependent trading-fee formula.

Its April 2026 fees schedule applies:

Fee = Θ × Contracts × Price × (1 − Price)

with a taker coefficient and maker rebate rather than a flat 0.10% trading fee. 

So, Which Platform Is Cheaper?

There is no universal answer.

The effective cost of a prediction-market trade includes:

Trading fee + bid-ask spread + slippage + funding/withdrawal costs

A platform with a lower posted fee may still be more expensive if its order book is significantly thinner.

Funding and Withdrawals

Funding is another major difference between the platforms.

Kalshi Funding

Although Kalshi historically felt USD-first primarily, by 2026 its funding options have expanded substantially.

Eligible users may have access to, ACH bank transfers, debit cards, Apple Pay and Google Pay, PayPal, Venmo, Cash App deposits, cryptocurrency and wire transfers. 

However, the availability differs by country.

For example, Kalshi states that international users may be able to fund through debit cards, crypto, and wire transfers, while ACH, PayPal, and Venmo are generally reserved for U.S. accounts. 

International Polymarket Funding

International Polymarket remains much closer to a Web3 trading experience.

USDC is used for trading and settlement, with blockchain-based infrastructure underpinning positions and transfers.

Polymarket states that it does not itself charge fees for USDC deposits or withdrawals, although external services such as exchanges, payment processors, or on-ramp providers may charge their own fees. 

For crypto-native users, this may feel more natural than transferring fiat through a conventional brokerage account.

Settlement and Resolution

Understanding how a market resolves is just as important as predicting the event correctly.

Kalshi Resolution

Kalshi contracts specify rules and settlement sources in advance. These may reference sources such as official government statistics, certified election results, sports results, weather data and other predefined authoritative sources.

Traders should always read the contract specifications because the precise wording determines settlement—not simply what people generally believe happened.

Polymarket Resolution

International Polymarket also publishes resolution rules for each market. The market rules specify the relevant resolution source, closing date, and treatment of edge cases. 

Polymarket uses UMA’s oracle infrastructure for many market resolutions.

A proposed outcome enters a challenge period. If disputed repeatedly, the resolution process can eventually escalate to UMA’s Data Verification Mechanism, where UMA tokenholders vote on the outcome. 

Therefore, saying that Polymarket simply uses “tokenholder voting” is incomplete.

Voting is generally part of the dispute-escalation mechanism, rather than how every ordinary market resolves.

Kalshi vs. Polymarket: Safety and Risk

Both prediction-market trading and crypto derivatives involve significant risk and can lead to major losses.

The main risks include:

Before trading, consider whether event contracts fit your personal financial circumstances.

The CFTC itself has been actively litigating this issue during 2026. Prediction-market prices should also not be treated as objective forecasts. Prices reflect what market participants are currently willing to pay and may be influenced by liquidity, positioning, incentives, or limited information.

Which Is Better: Kalshi or Polymarket?

The better choice depends on your location and trading goals.

Choose Kalshi If You:

• prefer a regulated exchange-style experience;

• primarily trade U.S. economic, political, sports, or weather events;

• want conventional funding methods and account verification under federal oversight;

• if you're comparing prediction markets with traditional sportsbooks, prefer an exchange format rather than fixed-odds betting;

• prefer clearly defined contract specifications and centralized exchange infrastructure.

Choose Polymarket US If You:

• are a U.S. user specifically interested in the regulated Polymarket product;

• prefer Polymarket’s interface and market ecosystem;

• understand that Polymarket US is separate from Polymarket.com.

Choose International Polymarket If You:

• are located in an eligible jurisdiction;

• are comfortable using USDC and crypto infrastructure;

• want broader exposure to international politics, crypto, technology, culture, and geopolitical markets;

• are often focused on political markets, culture markets, and other non sports markets outside the U.S.;

• prefer a crypto-native prediction-market experience;

• suit a faster, crypto-native trading style if you are comfortable with wallet-based access and on-chain infrastructure.

Always check geographic eligibility first. Polymarket currently restricts trading from numerous jurisdictions, including the United States on the international site.

Gate Prediction vs. Kalshi and Polymarket

Gate offers Gate Prediction, an integrated interface that provides access to Polymarket-powered prediction markets through the Gate ecosystem. Gate states that users can access event markets covering areas such as crypto, sports, politics, economics, technology, culture, weather, and other real-world events. 

Gate Prediction currently displays markets tied to events such as Bitcoin and Ethereum price levels, Federal Reserve rate decisions, sporting events, political outcomes, and geopolitical developments. 

For existing Gate users, Prediction adds event-based markets alongside Gate’s existing crypto trading products. However, prediction contracts differ fundamentally from spot or derivatives trading: they represent positions on defined event outcomes rather than direct ownership of, or continuous price exposure to, an underlying asset.

For example, a prediction market may ask:

“What price will Bitcoin hit in 2026?”

while BTC spot or perpetual futures provide direct exposure to changes in Bitcoin’s market price. Gate’s Prediction interface currently displays markets related to Bitcoin and Ethereum price outcomes as well as macroeconomic events such as Federal Reserve rate cuts. 

Importantly, availability of prediction-market services may vary by jurisdiction. Gate advises users to evaluate applicable local laws and regulations before using Polymarket-related services and notes that prediction markets involve uncertain outcomes, market volatility, and policy-related risks. 

Final Thoughts

Kalshi and Polymarket increasingly compete for the same prediction-market audience, but they remain structurally different products.

Kalshi offers a more traditional regulated exchange experience, and both Kalshi and Polymarket US sit within the U.S. prediction-market landscape under different regulatory setups, with a strong focus on economic changes, political, sports, weather, and financial event contracts.

Polymarket.com offers a broader crypto-native international prediction market, particularly across geopolitics, crypto, culture, technology, and rapidly developing global events.

Meanwhile, Polymarket US is effectively a third product in this comparison: it carries the Polymarket brand but operates separately from Polymarket.com as a CFTC-regulated designated contract market, with its regulated U.S. setup clearing and settling trades through Polymarket Clearing rather than the international platform’s crypto settlement model.

For traders, the most important question is therefore not simply “Kalshi or Polymarket?” In other words, this is not a same company issue, but a platform-structure and access question often framed as polymarket vs other venues.

It is:

Which platform can I legally access, which one lists the event I want to predict and which market gives me the best combination of liquidity, fees, settlement rules, and execution?

That framework is far more useful than declaring one prediction market universally better than the other.

FAQ

Is Kalshi legal in the United States?

Kalshi is a CFTC-regulated Designated Contract Market. However, certain types of event contracts remain the subject of litigation between federal regulators and individual states, particularly around sports-related markets. The CFTC maintains that it has exclusive jurisdiction over derivatives traded on federally regulated DCMs. 

Can U.S. residents use Polymarket?

U.S. users can use the separate Polymarket US product where eligible. They cannot trade through the international Polymarket.com platform, which lists the United States as a restricted jurisdiction.

Is Polymarket regulated by the CFTC?

Polymarket US is; international Polymarket.com is not.

Polymarket US is operated by QCX LLC d/b/a Polymarket US, a CFTC-designated contract market. It is not the same company as Kalshi; they are independent platforms within the U.S. prediction market landscape. Polymarket’s international product operates separately and explicitly states that it is not regulated by the CFTC.

What is the difference between Polymarket US and Polymarket.com?

Polymarket US is a federally regulated U.S. prediction-market product. Polymarket.com is a separate international, crypto-native prediction market using blockchain infrastructure, smart contracts, wallet-based access, and USDC, unlike the separate U.S. product.

Accounts between the two products are not connected.

Does Polymarket charge trading fees?

Yes, on many markets. International Polymarket introduced category-specific taker fees across several types of markets in 2026. Fees depend on both the relevant fee coefficient and the contract price. Geopolitical and certain world-event markets may remain fee-free. 

Does Kalshi accept crypto?

Yes. By 2026, Kalshi lists cryptocurrency among its supported funding methods, alongside ACH, debit cards, wire transfers and several U.S.-specific payment options. Availability depends on the user’s jurisdiction. 

Which has better liquidity: Kalshi or Polymarket?

It depends on the specific market. Major contracts often see the strongest trading activity in the most active markets, while less-followed contracts can trade with wider spreads and much thinner order books. Traders should compare bid-ask spreads, visible depth and recent volume for the exact market they want to trade rather than relying on platform-wide liquidity claims. In practice, liquidity varies not just by platform but by market category and the specific event.