Is crypto gambling legal in the US? UIGEA, state law and licensing

There is no federal ban on gambling with crypto as such, but in practice it is legal only on a site your state has licensed, paid for in a way your state allows. Only a minority of states license online casino games, and few let licensed operators take crypto at all. Instead, federal law makes internet gambling a federal matter when the bet is already unlawful under the law of the state where it is placed or received. Most of the answer therefore sits in state law: whether your state allows online casino games or sports betting at all, whether the site holds that state's license, and whether the state lets licensed operators take crypto, usually only after it is converted to dollars. An offshore crypto casino that accepts US players does not hold a license from any US state.

UIGEA targets the payment, not the player

The Unlawful Internet Gambling Enforcement Act of 2006 (UIGEA), codified at 31 U.S.C. 5361–5367, does not make any form of gambling legal or illegal by itself. Its rule of construction says no provision of the Act alters, limits or extends any federal or state law "prohibiting, permitting, or regulating gambling within the United States" (31 U.S.C. 5361(b)).

What the Act does:

• It bars the business from taking the money. Under 31 U.S.C. 5363, a person "engaged in the business of betting or wagering" may not knowingly accept credit, electronic fund transfers, funds sent through a money transmitting business, checks, or other financial transactions in connection with another person's participation in unlawful internet gambling.
• It borrows its definition of "unlawful" from other law. "Unlawful Internet gambling" means a bet made at least partly over the internet that is unlawful under applicable federal or state law in the state or tribal lands where it is initiated, received or otherwise made (31 U.S.C. 5362(10)(A)).
• It makes banks and card networks block the payments. The Federal Reserve Board and the Treasury implemented the Act through Regulation GG (12 CFR Part 233, duplicated at 31 CFR Part 132). Non-exempt participants in designated payment systems must have written policies and procedures reasonably designed to identify and block restricted transactions.

What the Act does not cover:

• Bets the player's state has authorized in-state. A bet placed and received entirely within one state is excluded when that state expressly authorizes it and requires age and location verification and data security controls (31 U.S.C. 5362(10)(B)). This is the provision that lets state-licensed online casinos and sportsbooks operate.
• Several kinds of activity listed as not a "bet or wager." The exclusions include securities transactions, contracts on registered exchanges under the Commodity Exchange Act, insurance, and fantasy sports contests that meet the statute's conditions (31 U.S.C. 5362(1)(E)).
• The player as a target. The prohibition in section 5363 applies to the business. Whether a player commits an offence is a question of state law (see below).

UIGEA's payment categories are written around financial institutions and money transmitters. A crypto deposit sent wallet to wallet may never touch a bank. That does not make the bet lawful: whether a bet is unlawful still depends on the state where it is made, and the operator's other federal exposure, under the Wire Act and the Illegal Gambling Business Act, does not depend on how it is paid.

The Wire Act reaches sports bets across state lines

The Wire Act, 18 U.S.C. 1084(a), applies to anyone "engaged in the business of betting or wagering" who knowingly uses a wire communication facility to transmit bets or wagers in interstate or foreign commerce. The penalty is a fine, up to two years in prison, or both. Section 1084(b) carves out transmissions of betting information from a state or foreign country where the betting is legal into one where it is also legal.

How far the Act reaches has changed:

• In 2011 the Justice Department's Office of Legal Counsel (OLC) concluded that the Act's prohibitions are limited to sports gambling.
• On Nov. 2, 2018, OLC reversed itself and concluded that all but one of the prohibitions apply to non-sports betting as well.
• On Jan. 20, 2021, the US Court of Appeals for the First Circuit, in New Hampshire Lottery Commission v. Rosen, held that section 1084(a) applies only to bets or wagers on sporting events or contests. The Justice Department let the deadline to seek Supreme Court review pass in June 2021.

The First Circuit ruling is binding precedent only in that circuit. For an offshore sportsbook taking bets from US residents, the Wire Act is a live federal risk under either reading.

A separate federal law hooks onto state law

The Illegal Gambling Business Act, 18 U.S.C. 1955, makes it a federal crime to conduct, finance, manage, supervise, direct or own an "illegal gambling business," punishable by a fine, up to five years in prison, or both. A business qualifies when it violates the law of the state where it is conducted, involves five or more people, and has been in substantially continuous operation for more than 30 days or has taken $2,000 or more in gross revenue in a single day. Again, the trigger is state law.

States decide what is legal, and most allow less online than people assume

The Supreme Court confirmed the states' role in Murphy v. National Collegiate Athletic Association (May 14, 2018). It struck down the Professional and Amateur Sports Protection Act (PASPA), the federal law that barred states from authorizing sports betting, and said: "Congress can regulate sports gambling directly, but if it elects not to do so, each State is free to act on its own."

The result is a patchwork. Sports betting is now licensed in many states; online casino games in only a minority. The practical rule is that legality attaches to a named operator and a named website, not to a type of site:

• New Jersey publishes the list of approved internet gaming sites by operator and domain. Its Division of Gaming Enforcement states: "Any site not included on this list is NOT approved to offer Internet gaming in the State of New Jersey."
• Michigan has ordered offshore operators to stop serving residents. In May 2025 the Michigan Gaming Control Board ordered a Costa Rica-based operator licensed only in the Comoros Union to cease all operations involving Michigan residents within 14 days. The board noted that its platform supported crypto transactions.
• Washington shows that some states put the player at risk too. RCW 9.46.240 makes it a class C felony to knowingly transmit or receive gambling information by the internet and other channels, except for activity the state's gambling chapter, rules and tribal-state compacts authorize.

For the current list of what your state allows, go to your state gaming regulator's website, not to a site that wants your deposit.

Licensed operators and crypto: some states allow conversion, others ban it

Where state regulators have dealt with crypto, they have treated it as a way to fund an account, not as a currency to bet in:

• In Massachusetts, the Gaming Commission's regulations prohibit funding a sports wagering account even indirectly by converting cryptocurrency to cash, effective Dec. 19, 2025, according to the commission's own meeting minutes.

So "accepts crypto" and "licensed in my state" rarely describe the same site. If a site takes crypto deposits directly and holds no license from your state regulator, assume it is operating outside your state's system.

The practical risks for a player

• No state protection in a dispute. An offshore site answers to its offshore licensor, if any. Your state regulator does not license it, so the state's player-protection and complaint processes do not cover it.
• Blocked or reversed bank payments. Under Regulation GG, banks and card networks must have procedures to identify and block restricted gambling transactions, so card or bank payments to an unlicensed site can be declined.
• State criminal exposure. In a state like Washington, the player's own conduct can be an offence.
• Taxes either way. The IRS says gambling winnings are fully taxable and must be reported, including the fair market value of non-cash prizes, and losses can be deducted only if you itemize and only up to your reported winnings. Separately, the IRS treats digital assets as property, not currency, so a later sale of crypto winnings can create its own gain or loss.

What to check before you deposit

1. Your state's law. Does your state allow online casino games, online sports betting, both or neither? Check the state gaming regulator, not a review site.
2. The operator's license. Find the exact domain on your state regulator's list of approved operators. A license from another country does not count in your state.
3. The funding rules. If you want to use crypto, check whether your state allows it at all, and whether only after conversion to dollars.
4. Location and age checks. A licensed site verifies your location and age, because the UIGEA intrastate exclusion requires it. A site that skips these checks is a warning sign.
5. Your records. Keep a record of winnings, losses and the dollar value of any crypto paid out, for your tax return.

This is general information, not legal advice; laws change, so check your state's current rules before you play.