Is Gambling Legal in Washington State? Laws, Penalties, and Taxes

Gambling is legal in Washington State, but only in specific in-person formats: tribal casinos, licensed commercial card rooms, the state lottery, pari-mutuel horse racing, charitable bingo and raffles, and sports betting inside tribal casinos. Online gambling is a Class C felony. You must be at least 18 to participate in any legal form.

Where You Can Legally Gamble

Tribal casinos are the largest and most varied gambling venues in the state. Around 29 tribes run casinos, operating under the federal Indian Gaming Regulatory Act, which requires each tribe to negotiate a compact with the state before offering Class III gaming — the category covering table games, card games, and electronic gaming terminals.¹

One quirk catches visitors off guard: Washington has no traditional slot machines. Tribal casinos instead use the Tribal Lottery System, networked terminals where a central computer delivers a virtual scratch ticket to the player’s screen for each wager.² They look and feel like slot machines but function as linked lottery terminals, and cannot have pull handles or mechanical spinning reels.³

Commercial card rooms — sometimes called mini-casinos — are also licensed, but operate under tighter restrictions. Most are limited to non-house-banked games, meaning players compete against each other while the house collects a fee to run the table. Some hold house-banked licenses that let them deal games where the house has a financial stake, but even those face more limited game selections than tribal casinos. Wagering caps are set by the Washington Administrative Code and apply across all licensed card rooms.⁴ The 18-and-older rule applies at both tribal casinos and card rooms.

The Washington State Lottery sells scratch-off tickets and participates in multi-state draw games like Powerball and Mega Millions. Selling a ticket to anyone under 18 is a misdemeanor, and a minor who buys one directly also commits a misdemeanor and forfeits any prize.⁵ Lottery revenue primarily funds education programs.

Horse racing operates under a pari-mutuel system overseen by the Washington Horse Racing Commission. All bets on a race go into a shared pool, and winners split the total after deductions for expenses and state revenue. Betting on horse races by any method other than the pari-mutuel system is illegal.⁶

Sports Betting Is In-Person Only

Washington legalized sports betting in March 2020, but only at tribal casinos with amended gaming compacts.⁷ You cannot place a sports bet at a commercial card room, a bar, a convenience store, or through a statewide mobile app. The sportsbook must be inside a tribe’s gaming facility.

Mobile betting exists in a narrow form. You can use a tribal casino’s sports betting app while you’re physically on that casino’s grounds. Each facility uses geofencing technology to verify your location, and the app blocks any wager attempted off-property. If you’ve used a mobile sportsbook in New Jersey or Colorado and expected the same experience, you won’t find it here.

Several bets are prohibited regardless of location:

Games involving Washington collegiate teams. The legislature passed a bill in early 2026 that would lift this restriction if signed by the governor, though bets on individual athlete performance and in-game coaching or officiating decisions would remain off-limits.
Minor league events of any kind.
Past-posted bets on events whose outcomes have already been determined.

Washington law also prohibits bracket pools, office sports pools, and 100-square boards outside sanctioned settings.⁷ The office March Madness bracket with a $20 buy-in is technically illegal in Washington, though enforcement against casual office pools is uncommon.

Home Games and Charitable Gambling

You can host a poker night at home without breaking the law, but the rules are strict about keeping the game genuinely social. No one may collect a rake, take a cut of the pot, or charge any fee tied to playing. Club or organization membership fees are fine only if they’re completely unrelated to the gambling.⁸ The moment anyone profits from hosting or organizing — even a $5 door fee — the game becomes illegal. The line between “everyone chips in for pizza” and “the host takes a cut” matters more than most players realize.

Nonprofit and charitable organizations can run bingo games, raffles, and fundraising casino nights. The organization must have operated continuously for at least 12 months before applying for a gambling license, and all revenue after prizes and expenses must go toward its charitable purpose.⁹ Smaller events with limited prize pools can operate without a license from the Gambling Commission; more frequent or higher-stakes operations need one.

Online Gambling Is a Felony

This is where Washington stands apart from nearly every other state. Placing a bet online — poker, casino games, sports, even buying a raffle ticket through a website — is a Class C felony.¹⁰ The statute covers anyone who knowingly transmits or receives gambling information over the internet or similar technology, and the legislature has explicitly reaffirmed this policy as new communication technologies have emerged.

A Class C felony carries up to five years in prison and a fine of up to $10,000.¹¹ Those penalties apply to individual players, not just operators. The Gambling Commission’s position is unambiguous: gambling through an online website violates state law, and using an offshore platform doesn’t change that.¹² No legal online casino or poker platform operates in Washington. Any site claiming otherwise is either breaking the law or misleading you about its legal standing. Prosecutions of individual players have been rare, but the statute gives authorities broad power to pursue them.

The same law catches paid daily fantasy sports. Washington is one of only five states where major platforms like DraftKings and FanDuel don’t operate. The Gambling Commission treats paid fantasy contests as gambling, and the major platforms have withdrawn from the state rather than risk the felony statute.⁷ Free fantasy leagues without cash prizes remain fine because they don’t involve wagering.

Penalties for Gambling Offenses

Washington’s penalties for gambling violations scale from misdemeanors to felonies. The felony classification for online gambling is the one that surprises people most; in most states, placing a bet online is either legal or a low-level infraction. Washington treats it with the same severity as crimes like third-degree assault.

Online gambling (transmitting or receiving gambling information): Class C felony, up to five years in prison and a $10,000 fine.¹⁰
Professional gambling in the third degree: gross misdemeanor, up to 364 days in jail and a $5,000 fine.⁹
Operating a gambling activity without a required license: gross misdemeanor, up to 364 days in jail and a $5,000 fine.
Cheating in the second degree: gross misdemeanor, up to 364 days in jail and a $5,000 fine.
False statements to the Gambling Commission: gross misdemeanor.

Higher degrees of professional gambling and first-degree cheating carry felony penalties. The Gambling Commission functions as a law enforcement agency with authority to investigate violations, seize gambling devices, and refer criminal cases for prosecution.

Taxes on Winnings

Washington has no state income tax, so you won’t owe the state anything on gambling winnings. That’s a real advantage compared to states that tax gambling income at the state level on top of federal obligations.

Federal taxes still apply to every dollar you win. All gambling winnings are taxable as ordinary income, with rates from 10% to 37% depending on your total income. For 2026, casinos and sportsbooks must file a Form W-2G reporting winnings that meet or exceed $2,000, a threshold that now adjusts annually for inflation.¹³ Depending on the game and amount, the payout may also trigger automatic federal withholding at collection.

You can deduct gambling losses on your federal return, but only up to the amount of your winnings, and only if you itemize. Starting in 2026, the expanded definition of “losses from wagering transactions” became permanent under the One Big Beautiful Bill Act, meaning professional gamblers can no longer separately deduct business expenses like travel costs; those now count as gambling losses subject to the same cap. Keep detailed records of both wins and losses, including dates, amounts, locations, and the type of wager. Reconstructing a year’s gambling activity from memory doesn’t go well at audit.

Self-Exclusion Program

Washington offers a voluntary self-exclusion program for anyone who wants to be formally banned from gambling at licensed card rooms and participating tribal casinos. When you enroll, you choose one year, three years, five years, or ten years.¹⁴ There’s no lifetime option; ten years is the maximum, after which you’d need to re-enroll.

There are three ways to sign up, and all require a government-issued photo ID:

In person at any licensed house-banked card room or participating tribal casino. Ask staff for the enrollment form and return it on-site.
By mail. Complete the form and have it notarized or signed by a certified problem gambling counselor, then mail it to the Gambling Commission in Olympia.
By appointment at the Commission’s office in Lacey.

There is no online enrollment. Once you’re enrolled, participating venues are required to take reasonable steps to prevent you from gambling during your exclusion period.

1
Office of the Law Revision Counsel. 25 USC Ch. 29 – Indian Gaming Regulation
2
Washington State Gambling Commission. Tribal Lottery System
3
Washington State Gambling Commission. Tribal Lottery System FAQ
4
Washington State Legislature. WAC 230-15-135 – Wagering Limits for Nonhouse-Banked Card Games
5
Washington State Legislature. RCW 67.70.120 – Sale to Minor Prohibited, Exception, Penalties
6
Washington State Legislature. RCW Chapter 67.16 – Horse Racing
7
Washington State Gambling Commission. Sports Wagering Requirements and Rules
8
Washington State Legislature. RCW 9.46.0351 – Social Card, Dice Games, Use of Premises
9
Washington State Legislature. RCW Chapter 9.46 – Gambling, 1973 Act
10
Washington State Legislature. Washington Code 9.46.240 – Gambling Information, Transmitting or Receiving
11
Washington State Legislature. Washington Code 9A.20.021 – Maximum Sentences for Crimes Committed July 1, 1984, and After
12
Washington State Gambling Commission. Online Gambling FAQ
13
Internal Revenue Service. Instructions for Forms W-2G and 5754 (Rev. January 2026)
14
Washington State Gambling Commission. Enrolling in the Self-Exclusion Program