On November 8, 2022, Proposition 27 drew 1,906,342 yes votes. Its opponents collected 8,849,206. That 82.3 percent no vote, on a measure that would have opened California to online sportsbooks, closed the largest untapped betting market in the country for at least six years.
The plain answer: no legal sportsbook anywhere in the state
Is sports betting legal in California? No. As of October 20, 2026, there is no licensed sportsbook in the state, no app that accepts wagers from a phone inside California, and no counter at a tribal casino or racetrack that takes bets on games. Live betting, which happens on a phone during play, has no legal route at all.
What California does allow is narrower. Pari-mutuel wagering on horse races is legal at tracks and satellite sites, and through advance deposit wagering accounts that the California Horse Racing Board approves. The California Lottery sells draw and scratch games. Tribal casinos offer slots and card games under their compacts. None of those cover a bet on a football game, and none of them let you wager on a Lakers game at halftime from a couch in Pasadena.
The state’s tribes are the reason. Dozens of tribes run casinos under compacts with the state, and casino-style gaming in California belongs to them. Any sports betting law has to get past them, and in 2022 the two sides that wanted different laws fought each other to a standstill.
How the 2022 ballot fight went
Two separate measures reached the same ballot.
Proposition 26 came from the tribes. It would have allowed in-person sports betting at tribal casinos and at the state’s four horse racetracks, added roulette and dice games such as craps to tribal casinos, and let private parties sue to enforce some state gambling laws. Bets on California college teams would have stayed banned outside tournament play. Racetrack bettors would have needed to be 21, and the tracks would have paid 10 percent of net daily sports bets into a new state fund. It failed with about 67 percent voting no, according to CalMatters.
Proposition 27 came from national sportsbook companies. It would have legalized online and mobile wagering through operators associated with a gaming tribe. The tribes campaigned hard against it, and it collected only 17.72 percent of the vote.
The combined spending on both sides came to roughly $450 million, the most expensive ballot measure fight in American history according to NBC News. The money did not buy a law. Each campaign spent much of its budget telling voters why the other measure was bad, and voters took both messages at face value.
The lesson most observers drew was that nothing passes in California without the tribes behind it. That framed the next attempt.
What Proposition 27 would have built
The losing online measure is still the most detailed blueprint for what a California mobile market could look like, because it was written out in full and analyzed by the Legislative Analyst’s Office. Bettors would have had to be 21 and off tribal land. Commercial sportsbooks could have applied only if they partnered with a tribe holding a state compact and were already licensed in at least ten US states or territories. Each such company would have paid $100 million up front for a five-year license, against $10 million for a tribe, and every licensee would have paid 10 percent of monthly bets after certain expenses.
The money had a destination. After regulatory costs, 85 percent would have gone to homelessness and gambling addiction programs and 15 percent to tribes not involved in online betting. The analysts put the likely revenue at hundreds of millions of dollars a year, probably no more than $500 million.
Two details stand out for live betting. The measure banned wagers on high school games and on elections, and the analysis describes no limit on wagering once a game has started. On paper, then, the only California proposal ever put to voters with a mobile component would have left room for in-play betting. It also set a penalty for anyone betting with an unlicensed operator: 15 percent of the amount wagered, a rule aimed squarely at offshore books.
What is being tried now, and when
The California Nations Indian Gaming Association said in March 2026 that tribes are preparing a measure for the 2028 ballot. Its chair first described a plan covering retail and online wagering; later 2026 reporting described the goal as online betting specifically, and the details remain unsettled. Tribes have kept polling voters since 2022, including fresh research in June 2026.
No initiative had been formally filed as of October 20, 2026. A new governor takes office in January 2027, which could change how compact negotiations go. Both 2022 proposals were written as amendments to the state constitution, which only a statewide vote can approve, and the 2028 plan is following the same route.
Prediction markets have added urgency. The association’s chair has said platforms selling event contracts on sports are already taking revenue that tribes consider theirs, and the group plans to study how much. Whether those platforms are legal in California is its own unresolved fight, and it sits outside the sportsbook question.
Daily fantasy, offshore sites and the gray zone that is not gray
The 2025 Attorney General opinion
On July 3, 2025, Attorney General Rob Bonta issued a formal opinion that pick’em and draft-style daily fantasy contests are illegal sports wagering under Penal Code section 337a, no matter where the operator is based. The request came from a state assemblymember. An Attorney General opinion is not binding law, but California courts often defer to one, and the governor publicly disagreed with this one.
For a state with no legal sportsbook, that opinion matters because daily fantasy apps were the closest legal-looking product many Californians used.
Offshore books
Offshore sportsbooks that accept Californians hold no license in California or any other US state. Using one is not a safe workaround. The money sits with a company outside the reach of any US regulator, and if it voids a winning ticket or delays a withdrawal, there is no state agency to complain to.
Compared with the legal sports betting states map as a whole, California is the largest gap by population, with Texas, covered on the Texas page, close behind.
Betting across the border
Neighboring states offer what California does not. Nevada, Arizona and Oregon all have legal online sports betting, and their licensed apps work for anyone physically inside their borders, residents or not.
A Californian in a Las Vegas hotel can open an app, bet live on a Dodgers game, and watch the account go dark the moment the car crosses back past Primm. The rule is about the phone’s location at the moment of the bet. Living in California does not disqualify anyone; standing in California does.
That border effect is visible on any NFL Sunday in South Lake Tahoe, where the casinos sit a few feet inside Nevada. If you place a live bet from that side of the street, the wager falls under Nevada’s rules. Step back across the state line on U.S. 50 and the same wager would be illegal.
The three neighbors do not share a rulebook. Per the state-by-state snapshot, Oregon runs its market through the Oregon State Lottery and prohibits all college sports betting, games and props alike. Arizona bans college player and team props but allows bets on college game outcomes. Nevada reports no college restrictions. A UCLA game that a Californian can bet freely in Las Vegas is off the board entirely in Portland.
Taxes on winnings earned elsewhere
California taxes gambling winnings as ordinary income. The Franchise Tax Board’s guidance lists horse races, casinos, lotteries and raffles as taxable and makes one main exception: prizes from the California Lottery are not taxed by the state.
So a Californian who wins $300 betting live in Arizona reports the $300 on the federal return and on the California return too, taxed at the filer’s regular state bracket. Arizona may also claim its share of winnings earned there, and how the two states settle that on one return is a question for a tax professional. Federally, losses are deductible only by itemizers, and from tax year 2026 only 90 percent of losses can be deducted.
A worked example: the price of crossing the line
Suppose a Californian drives to Arizona for a Cardinals game and bets $25 live on the home team at +210 after it falls behind early. Profit at positive odds is stake × odds ÷ 100, so $25 × 210 ÷ 100 = $52.50. The return is $77.50 if the comeback happens.
The $52.50 is the taxable part. The $25 stake was the bettor’s own money. If the comeback fails, the $25 is a loss that can offset other gambling winnings that year, but only at 90 percent and only on an itemized return. For most people who take the standard deduction, the loss offsets nothing.
Whatever the 2028 measure looks like, the key detail for live betting is one word: online. Proposition 26 would have legalized betting only at a casino or track window, where nobody bets the next pitch from a seat at Dodger Stadium.