Kalshi and Regulated Event Contracts: The CFTC-Authorized Approach
How Kalshi became the first US-regulated event contract exchange, what CFTC designation means in practice, how it differs from offshore and on-chain prediction markets, and what legal battles shaped its path.
In most discussions of prediction markets, the regulatory question gets treated as a background concern — something offshore platforms avoid and on-chain platforms navigate through decentralization. Kalshi took the opposite approach. It spent years and significant legal resources pursuing official authorization from the US Commodity Futures Trading Commission (CFTC), and in 2021 it became the first exchange in the United States legally designated to offer event contracts to retail customers.
That designation matters for anyone thinking seriously about prediction markets, because it represents one possible future for the entire industry: a regulated, custodial, KYC-compliant model operating inside US financial law. Whether that future is appealing depends heavily on what you value.
What the CFTC Designation Actually Means
The CFTC regulates derivatives — financial instruments whose value derives from some underlying asset or event. The agency has long regulated futures contracts on commodities, interest rates, and indices. Event contracts — contracts that pay based on whether a specific event occurs — fit within this framework under the Commodity Exchange Act (CEA).
To operate legally as an event contract exchange in the US, a platform must apply to become a Designated Contract Market (DCM) or a related category called a Swap Execution Facility. Kalshi obtained DCM status, which is the same regulatory tier as the Chicago Mercantile Exchange. In practice, this means Kalshi must:
- Maintain sufficient capitalization and financial controls
- Implement anti-money laundering (AML) and Know Your Customer (KYC) procedures
- Submit proposed markets to CFTC review before listing
- Maintain records and cooperate with regulatory examinations
- Ensure markets are not contrary to the public interest
The last requirement — “not contrary to the public interest” — is where the most interesting regulatory fights have happened.
The Sports Betting Legal Battle
Kalshi’s most significant legal test came when it attempted to list markets on the outcomes of US congressional elections. The CFTC initially blocked these, arguing that political event contracts were contrary to the public interest. Kalshi sued, arguing the CFTC’s reasoning was arbitrary.
A federal court sided with Kalshi in 2024, ruling that the CFTC had not adequately justified its ban on election markets. The decision allowed Kalshi to list contracts on US election outcomes — making it the first legal venue for Americans to trade on election results with real money. The CFTC appealed, but Kalshi was permitted to offer the markets while litigation continued.
The episode illustrates the unsettled state of regulation in this space. Even a fully licensed, KYC-compliant platform operating within the established regulatory framework faces ongoing disputes about which markets are permissible. This is not a problem unique to crypto platforms — it is inherent to the novelty of the product category.
Similarly, Kalshi pursued and eventually won the right to list markets on sports outcomes, another area the CFTC had historically treated cautiously given the interplay with state-level sports betting regulation. The boundary between regulated event contracts and state-regulated sports wagering remains genuinely contested.
How Kalshi Differs from Offshore and On-Chain Markets
The differences between Kalshi and platforms like Polymarket run throughout the entire structure:
| Dimension | Kalshi | Polymarket |
|---|---|---|
| Regulatory status | CFTC-designated DCM | Unregulated (US users restricted) |
| Custody | Custodial (Kalshi holds funds) | Non-custodial (smart contracts) |
| KYC/AML | Full identity verification required | Wallet connection only |
| US access | Legal for US residents | Officially blocked |
| Settlement | USD, ACH/wire | USDC on Polygon |
| Resolution | Kalshi’s own rules and staff | UMA oracle (decentralized) |
| Smart contract risk | None (no on-chain settlement) | Exists |
| Counterparty risk | Kalshi as custodian | Smart contract code |
Neither model is purely superior. Kalshi’s custodial structure means Kalshi itself is a counterparty risk — if the company failed, users could face delays or losses depending on how it is wound down. The regulatory framework provides some protections (segregated customer accounts, for example) but does not eliminate this risk. Polymarket’s non-custodial structure eliminates platform counterparty risk but substitutes smart contract and oracle risk.
The KYC Experience
Using Kalshi requires full identity verification: government ID, often a selfie, and in some cases additional documentation. This is standard for regulated US financial products and similar to opening a brokerage account.
The practical implications:
- Tax reporting. Kalshi reports to the IRS. Gains from event contracts are taxable income in the US. This is true whether you use Kalshi or not — income is income — but Kalshi creates a paper trail that offshore and on-chain platforms do not.
- Access limitations. Some markets are available only to users who meet additional suitability requirements. Position limits may apply.
- No anonymity. Your trading activity is known to Kalshi and, by extension, potentially to regulators.
For users who prefer privacy, the custodial/KYC model is a significant friction point. For users who want legal clarity and are already comfortable with regulated financial products, it is familiar territory.
Market Structure on Kalshi
Kalshi uses a central limit order book. Users post bids and asks denominated in cents (a $0.60 contract means you pay $0.60 for a chance to receive $1.00 if the event resolves YES). Kalshi takes a fee from the winning side — roughly 7% of profit in many markets, though this varies by market and contract type. This is meaningfully different from platforms that charge no direct fees but recoup costs through spreads.
The fee structure matters for your actual return. If you buy a YES contract at $0.60 and it resolves YES, you receive $1.00 minus Kalshi’s fee — not the full $0.40 implied profit. On close markets where your edge is small, this fee can eliminate a meaningful portion of expected returns.
What Regulation Does and Does Not Protect
CFTC oversight provides some real protections: rules about market manipulation, segregated customer funds (meaning Kalshi’s operating funds should be separate from customer deposits), and a regulatory body you can complain to. These are not nothing.
What regulation does not protect against: losing trades. The fundamental risk of prediction markets — that you stake money on events that may not resolve in your favor — is unchanged by regulatory status. A regulated loss is still a loss.
Resolution on Kalshi is more predictable than on-chain oracle systems because Kalshi’s rules are published and its staff applies them consistently. But Kalshi’s resolution decisions are final in ways that on-chain systems are not — there is no smart contract you can inspect to verify the payout logic; you are trusting Kalshi’s procedures.
The Broader Significance
Kalshi’s existence is significant for the prediction market industry regardless of whether you ever use it. It established that:
- US regulators will license event contract exchanges under the right conditions.
- The legal fight over which events are permissible to trade is ongoing and contentious.
- The “regulated” and “on-chain” models will coexist rather than one replacing the other.
For a fuller picture of how regulation shapes the entire crypto gambling landscape, see our regulation and legal frameworks coverage. If you are weighing whether prediction market participation makes sense for you, start with our responsible gambling page.