US Federal Gambling Laws
Three federal statutes are central to understanding US online gambling law. None of them create a blanket federal prohibition on individual players gambling online; instead, they regulate the financial infrastructure, interstate commerce, and sports betting frameworks that surround gambling activities.
The Three Key Federal Statutes
| Law | Year | What It Covers | Effect on Online Gambling |
|---|---|---|---|
| Unlawful Internet Gambling Enforcement Act (UIGEA) | 2006 | Financial transactions for unlawful internet gambling | Prohibits banks/processors from processing payments to unlicensed gambling operators; does not make gambling itself illegal for players |
| Federal Wire Act | 1961 | Wire communications for sports betting | 2011 DOJ opinion limited its scope to sports betting, not casino games. State-regulated online casinos operate legally under this interpretation. |
| Professional and Amateur Sports Protection Act (PASPA) | 1992 (repealed 2018) | Prohibited most states from legalising sports betting | Repealed by Murphy v. NCAA (2018 Supreme Court ruling), which opened the door for state-regulated sports betting and, later, online casinos |
UIGEA in Practice
The Unlawful Internet Gambling Enforcement Act targets the financial layer, not individual players. It requires financial institutions to identify and block payment transactions to operators engaged in “unlawful internet gambling.” The key word is “unlawful”: transactions to licensed, regulated operators in US states where online gambling is legal are not covered by UIGEA. This is why card payments and ACH transfers work at regulated NJ, PA, and MI casinos but may be blocked at offshore operators by US banks.
The Wire Act and Interstate Gambling
The Wire Act (18 U.S.C. § 1084) was enacted in 1961 to target illegal sports bookmaking operations using wire communications. In 2011, the Department of Justice issued an opinion that the Wire Act applies only to sports betting, not to other forms of online gambling. This opinion underpinned the legalisation of online poker and casino games in NJ, DE, and other states. In 2019, the DOJ reversed this position; however, federal courts have since upheld the 2011 interpretation.