Is Kalshi legal in Delaware?
Delaware at a glance
| Question | Position as of 14 October 2026 |
|---|---|
| Does Kalshi accept Delaware users? | Yes, with no state-specific restriction reported |
| Has Delaware issued a cease-and-desist? | No publicly reported order |
| Is Delaware in the Kalshi litigation? | Only as an amicus: on the 39-state brief of 7 October 2026 |
| Legal sportsbooks | Three racino books (Delaware Park, Bally's Dover, Harrington) and one mobile app, BetRivers |
| Regulator | Delaware Lottery, with the Division of Gaming Enforcement |
| Minimum betting age | 21 |
| State share of revenue | 50% |
| Federal circuit | Third Circuit, ruled for Kalshi against New Jersey on 6 April 2026 |
The oldest sports betting state, and the smallest market
Delaware has a longer sports betting history than any state outside Nevada, and a smaller legal market than almost any state with one. The Delaware Lottery ran a football parlay game in 1976, which is why the state was exempted from the 1992 federal ban. It tried to add single-game betting in 2009 and lost in the Third Circuit, so parlay cards stayed. When the Supreme Court struck the federal ban in May 2018, Delaware was first out: the three racinos opened full sportsbooks on 5 June 2018, nine days before New Jersey.
Mobile came last, not first. Delaware ran a lottery monopoly on retail and only in 2023 picked Rush Street Interactive, replacing 888 Holdings, to run a single statewide app. BetRivers soft-launched on 27 December 2023 and fully launched on 3 January 2024, the 29th state with mobile betting, on a five-year contract with options to ten. A bettor opening the app has to pick one of the three casinos to wager through, a relic of the lottery structure. There is no second operator, a 2024 bill to let each casino partner with two sportsbooks went nowhere, and the state keeps 50 percent of revenue.
The numbers are small. In 2025 Delaware's sportsbooks took $253.3 million in bets, kept $20.7 million at a 9.4 percent hold, and paid $9.6 million to the state. In 2026 monthly handle has run between $17 million and $22 million; August was $17.2 million with $1.3 million of revenue. New Jersey does more in a slow week. That is the market Kalshi competes with in Delaware, and it is why nobody in Dover has treated the exchange as an emergency.
The one thing Delaware has actually done
Delaware's name appears once in the national fight. On 7 October 2026 Ohio Attorney General D. Andrew Wilson filed an amicus brief in Flaherty v. KalshiEX, No. 26-299, for 39 states and the District of Columbia supporting New Jersey's petition for certiorari. The brief argues that the platforms' preemption theory intrudes on state sovereignty, raises a major-questions problem, and leaves "the circuits fractured." Delaware signed. So did Pennsylvania, the other Third Circuit state, and so did the District of Columbia, Maine and Virginia, which like Delaware have sent no letter of their own. Ten states stayed off: Alaska, Florida, Georgia, Indiana, Kentucky, Montana, North Dakota, Tennessee, Texas and Washington.
Signing that brief is an unusual position for Delaware, because the decision it asks the Court to review is the one that protects Kalshi inside Delaware. The 39 states are asking the justices to reverse the Third Circuit. If they do, Delaware gets the same freedom to act that Ohio and Nevada already have. If they do not, or if the Court declines the case, Delaware's attorney general is left with a binding appellate precedent against the theory she has just endorsed.
Why the Third Circuit matters more here than anywhere else
Three appeals courts have now ruled on whether a state can apply its gambling law to Kalshi's sports contracts, and they disagree. The Ninth Circuit ruled for Nevada on 28 August 2026. The Sixth Circuit ruled for Ohio and Tennessee on 25 September, holding that Kalshi had not shown its contracts are swaps and that the Commodity Exchange Act does not preempt state gambling law either way. The Third Circuit, on 6 April, went the other direction for New Jersey. Kalshi has asked both the Ninth and Sixth Circuits to rehear their cases en banc, on 9 September and 9 October respectively.
Delaware is bound by the Third. A Delaware regulator who sent Kalshi a cease-and-desist letter tomorrow would face a federal preemption suit in Wilmington in which the controlling precedent says Kalshi is likely to win. Maryland, across the state line in the Fourth Circuit, has no such problem; its case is argued and pending. Pennsylvania shares Delaware's position and has responded the same way, with regulator comments and a bill rather than a letter. This is the clearest example in the country of a circuit boundary deciding what a state does, and it is why the Supreme Court's answer on New Jersey's petition matters to Delaware more than to most.
What the 50 percent is defending
The fiscal argument against Kalshi is weaker in Delaware than in Ohio, where the state collected $14 million in sports betting tax in a single month, but it is the same argument. A sports event contract traded by a Delaware resident on Kalshi pays nothing into the lottery system, nothing to the three racinos that share the licence, and nothing to the racing purses the lottery funds. It is also outside the 21-plus floor the lottery enforces; Kalshi takes customers at 18, as it does everywhere, because the CFTC sets no higher minimum. The NFL's Supreme Court brief of 8 October asks for a 21-plus floor nationally; the 39-state brief does not, but Delaware's statute already has one.
What this means in practice
A Delaware resident today can open a Kalshi account at 18 and can use BetRivers or a racino sportsbook at 21. Neither fact is a legal opinion. The first could change if the Supreme Court takes New Jersey's case and reverses the Third Circuit, or if a Delaware official decides to test the precedent, which no one has. Kalshi has geofenced states after orders were issued, so present access is not a guarantee of continued access. Every dated action is in the prediction market change log, and the current map is in the Kalshi legality tracker.
For the state whose case decides Delaware's position, see New Jersey; for the other Third Circuit state, see Pennsylvania; for the neighbour that has actually litigated, see Maryland. For how the two products differ in cost, see sportsbooks versus prediction markets. This page describes the regulatory position. It is not legal advice and not a recommendation to trade or wager anything.
Frequently asked questions
Is Kalshi legal in Delaware?
Kalshi operates in Delaware and no publicly reported Delaware cease-and-desist order, lawsuit or regulatory finding targets it as of 14 October 2026. Delaware sits in the Third Circuit, whose April 2026 ruling in Kalshi's case against New Jersey held that federal commodities law likely preempts state sports betting law as applied to Kalshi. That is the practical position, not a ruling by any Delaware court.
Has Delaware taken any official position on prediction markets?
One. Delaware joined the amicus brief led by Ohio and filed on 7 October 2026 in Flaherty v. KalshiEX, No. 26-299, which asks the Supreme Court to hear New Jersey's appeal of the Third Circuit decision. It is a brief, not an enforcement action, and it asks the Court to overturn the precedent that currently binds Delaware.
Who regulates sports betting in Delaware?
The Delaware Lottery, with the Division of Gaming Enforcement. Delaware runs sports betting as a lottery product: three racino sportsbooks since 5 June 2018, football parlay cards at more than 100 retailers, and a single mobile app, BetRivers, run by Rush Street Interactive under an exclusive contract since December 2023. The minimum age is 21.
What does the state take from sports betting?
Delaware keeps 50 percent of sports betting revenue. In 2025 the state's sportsbooks took $253.3 million in bets, kept $20.7 million and sent $9.6 million to the state. Kalshi pays none of it because it holds no Delaware licence and is not part of the lottery system.
Which federal circuit covers Delaware, and has it ruled?
The Third Circuit, which also covers New Jersey and Pennsylvania. On 6 April 2026 a divided panel affirmed the injunction protecting Kalshi from New Jersey enforcement, holding that the Commodity Exchange Act likely preempts state sports betting law for a CFTC-registered exchange. That decision binds federal courts in Delaware until the Supreme Court says otherwise.
Related
- Is Kalshi legal in New Jersey?
- Is Kalshi legal in Pennsylvania? The regulator objects, the legislature negotiates
- Is Kalshi legal in your state? The 50-state tracker
- Will the Supreme Court take the Kalshi case?
- Parlay calculator
Sources
- Legal Sports Report, Delaware sports betting, for the lottery model, the three racinos, the 50 percent state share, the 21+ minimum and the BetRivers launch dates.
- RG.org, Delaware sports betting revenue statistics, for the 2025 totals and the January to August 2026 monthly figures reported by the Delaware Lottery.
- Delaware Public Media, Mobile sports betting in Delaware is up and running, 3 January 2024, for the Rush Street contract and the single-casino selection rule.
- Covers, Delaware sports betting, for the 1976 parlay game, the 2009 single-game attempt and the June 2018 retail launch.
- Supreme Court of the United States, Brief of Ohio, 38 other states and the District of Columbia as amici curiae, No. 26-299, 7 October 2026, and InGame, 39 state AGs ask SCOTUS to hear Kalshi-NJ lawsuit, 7 October 2026, for the list of non-signing states.
- Prediction News, Kalshi seeks en banc rehearing after Ninth Circuit loss, 9 September 2026, and Straight to the Point, PM Corner: the CFTC's new rules, 12 October 2026, for the two rehearing petitions.
18+ only. Prediction market contracts and sports wagering carry real financial risk. This page is analysis, not legal, financial or betting advice. If gambling stops being fun, help is available at 1-800-GAMBLER.