Regulatory
Wire Act
Wire Act (18 U.S.C. 1084)
Definition
The Wire Act is a 1961 US federal law, codified at 18 U.S.C. 1084, that makes it a crime for anyone in the business of betting or wagering to knowingly use a wire communication facility to transmit bets, wagers or information assisting in placing bets across state or national borders. Violations carry a fine and up to two years in prison. A safe harbour allows betting information to pass between two jurisdictions where that betting is legal.
Its scope has been contested. The Justice Department's Office of Legal Counsel concluded in 2011 that the Act covers only sports betting, reversed itself in an opinion dated 2 November 2018 and published in January 2019, and was then rejected by the First Circuit Court of Appeals, which held on 20 January 2021 in New Hampshire Lottery Commission v. Rosen that the Act applies only to sporting events or contests.
Key takeaways
- The Wire Act is a 1961 federal law banning businesses from using wire communications to transmit bets or betting information across state or national lines.
- The 2011 Justice Department opinion limited it to sports betting; a 2018 opinion reversed that, prompting legal challenges.
- In January 2021 the First Circuit held that the Act applies only to sports betting, a ruling the government did not take to the Supreme Court.
- It is the reason US online sports betting stays inside state lines, while interstate online poker compacts and iLottery operate on the sports-only reading.
Why it matters
The Wire Act defines the shape of the US online market. Because interstate transmission of sports bets remains a federal crime outside the safe harbour, every licensed US sportsbook must prove each bet is placed from inside the state that licensed it. That requirement drives the geolocation industry, server location rules and the state-by-state structure of licensing, and it is why sports betting liquidity cannot simply be pooled nationally.
The sports-only interpretation matters just as much for other verticals. States rely on it to sell lottery tickets online through iLottery using out-of-state processors, and to pool online poker players across states, a form of shared liquidity. The 2018 opinion threatened those arrangements, which is why a state lottery and its supplier sued. The First Circuit's 2021 ruling is binding only in its own circuit, so legal teams still assess Wire Act risk when designing anything interstate, from data hosting to payment routing.
For suppliers, the practical result is duplicated infrastructure: separate instances, in-state servers and geo-blocking controls in each regulated state. The US online gambling regulation course sets the Act alongside the other federal statutes.
Wire Act vs UIGEA (Unlawful Internet Gambling Enforcement Act)
| Wire Act | UIGEA (Unlawful Internet Gambling Enforcement Act) |
|---|---|
| A criminal statute that targets the transmission of bets and betting information by wire across state or national borders. It defines the offence itself. | A payments statute that bars gambling businesses from accepting payments for unlawful internet gambling, with illegality defined by other federal or state laws. |
The Wire Act decides whether an interstate betting flow is itself unlawful; UIGEA decides whether money can be accepted for it. Compliance teams have to clear both.
The bottom line
The Wire Act bans businesses from transmitting bets across state or national lines by wire, and since the First Circuit's 2021 ruling it is read as applying to sports betting only. It is why US sportsbooks geolocate every bet and why interstate poker and iLottery depend on that narrower reading.
Sources
- 18 U.S. Code 1084: Transmission of wagering information; penalties - Legal Information Institute, Cornell Law School
- Reconsidering Whether the Wire Act Applies to Non-Sports Gambling - US Department of Justice, Office of Legal Counsel
- New Hampshire Lottery Commission v. Rosen, No. 19-1835 - US Court of Appeals for the First Circuit
Frequently asked questions
What is the Wire Act?
The Wire Act is a US federal law passed in 1961 and codified at 18 U.S.C. 1084. It makes it a crime for a person in the business of betting or wagering to knowingly use wire communications, which today include the internet, to transmit bets or betting information across state or national borders. It allows information to pass between jurisdictions where the betting is legal at both ends, and carries up to two years in prison.
Does the Wire Act apply to online casinos and poker?
On the current leading interpretation, no. In January 2021 the First Circuit held in New Hampshire Lottery Commission v. Rosen that the Act applies only to bets and information about sporting events or contests. That matches the Justice Department's 2011 opinion. The 2018 opinion that read it more broadly was rejected by the court, and the government did not seek Supreme Court review.
Is the Wire Act still in effect?
Yes. The Wire Act remains federal law and continues to prohibit interstate transmission of sports bets by businesses outside the safe harbour. What changed after 2018 was the debate over whether it also covers non-sports gambling. Legal US online sports betting operates within state lines, with operators using geolocation to confirm each customer is physically in the licensing state.
What was the 2018 Wire Act opinion?
It was a memorandum from the Justice Department's Office of Legal Counsel, dated 2 November 2018 and made public in January 2019, which concluded that most of the Wire Act's prohibitions are not limited to sports betting. That reversed the 2011 opinion and alarmed state lotteries and online poker operators. The New Hampshire Lottery Commission challenged it, and the courts held that the Act is limited to sports.