Prediction Markets in Hawaii: Trading in a State Where All Gambling Is Banned

Short version: yes, in practice. As of August 2, 2026, Hawaii has no law on its books that names prediction markets, no cease-and-desist letter on record against Kalshi or any other exchange, and no lawsuit against an operator. The major CFTC-registered platforms accept Hawaii residents, and nothing the state has done stops them.

The reason is jurisdictional. Companies like Kalshi are registered with the Commodity Futures Trading Commission as designated contract markets, the same federal category that governs futures and swaps trading. Their argument, which a federal appeals court accepted for the first time in April 2026, is that the events they list are federally regulated swaps under the Commodity Exchange Act, and that federal oversight leaves no room for state gambling law to reach them. Hawaii has never tested that argument in court. Unlike Nevada, New York, Arizona and a handful of other states that sent cease-and-desist letters or filed suit, Hawaii’s regulators have stayed on the sidelines, so there is no state order for anyone to defy.

That is not the same as a blessing. Hawaii’s own criminal code would almost certainly treat a locally run betting operation of this kind as illegal, and lawmakers spent the 2026 session trying to spell that out. The gap between “the state clearly disapproves” and “the state has done nothing enforceable” is where Hawaii traders currently live. The platforms operate under federal registration; the state has neither authorized nor successfully blocked them.

To appreciate why this is such an odd standoff, start with how deep Hawaii’s anti-gambling posture runs. Most states that ban sports betting still sell lottery tickets, or run charitable bingo, or host a tribal casino. Hawaii runs none of it. The islands have no gaming commission because there is no legal gaming to commission. When people describe Hawaii and Utah as the last two holdouts, they mean it literally — not “no sports betting,” but no legal wagering product of any kind offered to the public.

Set that against a federal derivatives regulator that, since a change in leadership after the 2024 election, has actively defended prediction exchanges. The CFTC dropped its earlier appeal over election contracts, withdrew a proposed rule that would have restricted event contracts, and in early 2026 its chairman said the agency would sue any state regulator that interfered with a federally licensed operator. So on paper you have the most restrictive gambling state in the country and the most permissive federal posture toward these markets pointed at each other, with a Hawaii resident’s phone caught in the middle.

What keeps the peace, for now, is simple inaction. Hawaii has not picked the fight that Nevada, Arizona, New York and others did. Because the state has not moved, there has been nothing for the CFTC to counter and nothing for a court to resolve. The exchanges treat Hawaii as an available market and keep listing contracts to its residents.

Hawaii’s gambling prohibition lives in Part III of chapter 712 of the Hawaii Revised Statutes, the section of the penal code covering offenses against public health and morals. The definitions in HRS 712-1220 set the frame: a person gambles when they “stake or risk something of value upon the outcome of a contest of chance or a future contingent event not under the person’s control or influence, upon an agreement or understanding that the person or someone else will receive something of value in the event of a certain outcome.”

Read that definition next to a yes/no event contract and you can see why lawmakers think it fits. A trader stakes money on a future contingent event — an election result, a game, a Federal Reserve decision — that they do not control, expecting a payout if the outcome lands their way. The core gambling offense in HRS 712-1223 makes simple gambling a misdemeanor, while the promoting-gambling offenses in HRS 712-1221 and 712-1222 target the people who run an operation and can rise to a felony.

The catch is jurisdictional reach, not statutory language. Those statutes describe what a person does in Hawaii; they do not by themselves override a federal registration held by an out-of-state exchange. The federal preemption question — whether the Commodity Exchange Act displaces this chapter as applied to a CFTC exchange — is exactly what courts in other states have been fighting over, and it is why Hawaii’s clear-sounding ban has not translated into any action against Kalshi or its peers. The words are on the page. Using them against a federally licensed platform is the part no one in Hawaii has attempted.

Hawaii’s legislature did try to close the gap, and it got further than any other state’s early attempt. The vehicle was House Bill 2198, introduced by Representative Scot Matayoshi and given its first reading on January 28, 2026. Rather than build a licensing or tax framework, the bill did the opposite: it amended the definition of gambling in chapter 712 to sweep in prediction markets outright, treating the purchase, sale, or financial speculation on securities or commodities tied to specified real-world outcomes as illegal gambling.

The list of covered categories was broad. As drafted, HB 2198 reached contracts on sports, contests, people, politics, legislation, national security, catastrophes and death — essentially the full menu the exchanges offer. The trigger was local and specific: reporting that roughly 449,000 dollars had been staked on prediction platforms over the wording of Governor Green’s State of the State speech, which struck lawmakers as a bright example of gambling wearing a financial-product costume.

Here is the timeline the bill actually followed. It was referred to two committees, Consumer Protection and Commerce and Judiciary and Hawaiian Affairs. The Consumer Protection and Commerce committee held a hearing on February 5, 2026, and advanced an amended version by unanimous voice vote — the moment that made national headlines as the first legislative step by any state toward a prediction-market ban. An amended draft, HB 2198 HD2, followed on March 6, and the Judiciary committee took it up around March 3. Then it stopped. The measure failed on March 12, 2026, when it did not clear the crossover deadlines that a bill must meet to keep moving. There was no Senate companion, and the window to revive it had closed.

Its collapse was not a statement of support for the exchanges. HB 2198 died the same way nearly every Hawaii gambling bill died in 2026 — stuck at a committee deadline in a legislature that, session after session, proves unable to agree on anything touching wagering. The proposed effective date in the bill was July 1, 2026, so had it passed, Hawaii would already have a prediction-market ban in force today. Instead it has neither a ban nor an authorization, which is the same limbo the state occupied before Matayoshi filed it.

A prediction market is not a sportsbook, and the difference is more than branding. On a sportsbook, you bet against the house, which sets the odds and profits when you lose. On a CFTC exchange, you trade against other users. Every market is a yes/no question — “Will the Fed cut rates in September?” — and each contract settles to either a dollar or nothing at all when the event resolves. Prices float between one cent and 99 cents and read as probabilities: a contract trading at 62 cents means the crowd currently prices that outcome near a 62 percent chance.

You take a side by buying “yes” or “no” shares. If you buy yes at 62 cents and the event happens, each share pays a dollar, for a 38-cent gain; if it does not, the share expires worthless. Because it is an exchange with an order book, you usually do not have to hold to settlement — you can sell your position back into the market before the event resolves, locking in a profit or cutting a loss the way you would trade any other instrument. The platform earns from small trading and settlement fees rather than from a built-in vig, which is the structural argument these companies use to distinguish themselves from bookmakers.

For a Hawaii resident the mechanics are the same as anywhere else: install a CFTC-registered app, verify your identity and age, deposit, and trade. The platforms geolocate users, but Hawaii is not a blocked state on the major exchanges, so residents generally pass the location check that trips up users in Nevada or other litigated states.

Other CFTC-linked platforms we review, which generally accept residents in open states like Hawaii, span federal exchanges, brokerage-distributed contracts, pick’em-style apps, and an offshore crypto book. Availability shifts constantly and each operator maintains its own state list, so confirm on the platform itself before funding an account. The full roster lives on our prediction markets hub.

The menu a Hawaii trader sees looks the same as a mainland trader’s, because these are national markets with no Hawaii-specific carve-outs. In broad strokes it breaks into a few families.

Because Hawaii never regulated any of this, there is no state list of prohibited contract types the way some states have proposed. The only real limits are the ones the CFTC and the platforms impose nationwide — for example, the proposed federal rulemaking that would bar certain contracts on individual-player injuries, referee decisions, military conflicts and violent acts. Those restrictions, if finalized, would apply to a Honolulu trader the same as to anyone else.

For most Hawaii residents, prediction markets are not an alternative to a legal sportsbook — they are the only legal way to put money on a game at all, because the state has never authorized sports betting. That makes the comparison a little lopsided, but the practical differences still matter.

A licensed sportsbook, in states that have them, sets the line and books your bet against the house; it operates under a state gaming license, contributes state tax revenue, is bound by state responsible-gambling rules, and connects to a state self-exclusion program. A prediction exchange does none of that. It answers to a federal regulator, matches you against other traders instead of a house, pays no Hawaii gaming tax, and sits entirely outside whatever consumer protections Hawaii might one day build. If lawmakers ever pass the kind of sports-betting framework that Hawaii sports betting bills have proposed, the two products would suddenly compete head to head — and compliance-first operators like FanDuel have signaled they would pull their prediction sports contracts once a licensed book is available. You can see how the licensed side works elsewhere on our list of states with online sportsbooks and our broader online sportsbooks hub.

The hole in consumer protection is the honest downside of trading in a state that has never regulated this. Because these are federally registered exchanges, a Hawaii user sits outside every safety net a state gambling regime normally provides. There is no Hawaii self-exclusion registry to sign up for, no state complaint line, no state-supervised dispute process, and no local problem-gambling fund of the kind sports-betting bills keep proposing to create. Most platforms set their minimum age at 18, younger than the 21 that Hawaii’s own sports-betting proposals would have required. FanDuel Predicts is the standout exception on tools, offering voluntary limits, self-exclusion and third-party support services, but that is a company choice, not a Hawaii mandate.

Taxes are their own tangle. Kalshi has said it does not report 1099-B forms for event contracts, the IRS has published no formal classification for this product, and whether gains count as gambling income, capital gains, or Section 1256 contract income remains genuinely unsettled at the federal level. Reporting can also differ between an exchange-native product and a brokerage-distributed one, so it is worth checking how each platform you use handles it. Hawaii layers its own income tax on top of federal tax, and residents are responsible for reporting trading gains as income regardless of whether a platform sends a form. None of this is tax advice — if you trade at any real volume, talk to a professional who can look at your actual situation.

Hawaii is best understood as the quiet extreme of a loud national argument. On one end are states like Nevada, New York and Arizona, which sent cease-and-desist letters, filed suits or even brought a criminal case to drive these exchanges out. On the other are states like Tennessee and New Jersey, where courts blocked state enforcement and let the platforms keep operating. Hawaii is a third category: the state most philosophically opposed to gambling, which has nonetheless taken no enforceable action at all, leaving the federal exchanges free to operate inside a total-prohibition state.

Whether that holds depends more on courts and Congress than on Honolulu. A federal appeals court in the West is weighing a case that could split with the April 2026 ruling favorable to Kalshi and push the whole question toward the Supreme Court. The CFTC is finishing a rule defining which contracts survive. And a bill in Congress would bar these exchanges from listing sports and casino-style contracts entirely — if it passed, it would override the entire state-by-state map, Hawaii included. For a state that has done nothing on its own, the outside forces are what will decide the next chapter.

Locally, the watch list is short but real. HB 2198 is dead for 2026, but its sponsor moved it further than any comparable bill in the country, and nothing stops a similar measure from returning in the 2027 session, potentially with a Senate companion this time. Hawaii’s perennial sports-betting push, which stalled again in 2026, could also reshape the landscape — legalizing sportsbooks would likely trigger compliance-minded operators to withdraw their prediction sports contracts here. For the wider context on how federal and state rules interact, our overview of whether online gambling is legal across the country puts Hawaii’s posture in national perspective, and our Hawaii gambling sites page and the full state index track everything else happening in the islands.

• Hawaii Revised Statutes 712-1220, definitions of gambling terms — law.justia.com
• Hawaii Revised Statutes 712-1223, the gambling offense — law.justia.com
• Hawaii State Legislature, bill status and text search — capitol.hawaii.gov
• HB 2198 (2025-2026), Hawaii Penal Code; Gambling; Prediction Markets, bill history — civilbeat.digitaldemocracy.org
• Commodity Futures Trading Commission, event contracts and DCM registration — cftc.gov
• Hawaii House committee advances prediction-market ban, February 2026 reporting — gamingamerica.com

All statements above are current to August 2, 2026. Prediction-market law is moving quickly at both the state and federal level, so verify any specific bill status, court ruling, or platform availability against the primary source before acting on it.