A Short History of Online Gambling in the USA

Online gambling in the United States did not move in a straight line from illegal to legal.

It developed through several overlapping systems: offshore gambling sites, old federal laws written before the internet, payment restrictions, criminal enforcement, court decisions and eventually state-regulated online casinos and sportsbooks.

The result is the market Americans have today. There is no single national online gambling licence. Instead, different states decide whether to authorize online casino games, poker or sports betting, while federal law still affects payments, interstate activity and certain forms of gambling.

The central story of U.S. online gambling is a shift from offshore access under legal uncertainty to regulated gambling built state by state.

1961: The Wire Act Creates a Federal Gambling Law Before the Internet Exists

The legal history of online gambling starts decades before anyone could place a bet through a web browser.

Congress passed the federal Wire Act in 1961. It targeted gambling businesses using wire communications to transmit bets and betting information.

The law was written primarily with bookmaking and organized crime in mind, not online casinos. But once internet gambling appeared, the meaning of this old statute became one of the most important questions in U.S. gambling law.

Whether the Wire Act applied only to sports betting or also to casino gambling would later affect state lotteries, poker networks and online casinos.

1994: Antigua Creates an Early Online Gambling Licensing Framework

Commercial internet gambling began developing in the mid-1990s, largely outside the United States.

Antigua and Barbuda’s 1994 Free Trade and Processing Zone legislation helped create one of the early licensing environments for businesses offering gambling remotely over the internet.

Operators could be based overseas while accepting players from other countries, including the United States.

This created a model that would dominate the early U.S. online gambling market: the player was in America, but the gambling company and its servers were somewhere else.

1996: Early Real-Money Online Casinos Begin Taking Bets

By the middle of the 1990s, real-money casino gambling had moved onto the web.

InterCasino, launched in 1996, is widely recognized as one of the earliest real-money online casinos.

These early sites offered a small selection compared with modern casinos, but the basic model was already recognizable. Players could register remotely, fund an account and wager on casino games without visiting a physical gambling property.

There was no U.S. federal licensing system for these operators, so American demand was largely served from offshore.

1998: Online Poker Arrives

Online poker followed soon after.

Planet Poker began offering real-money poker in 1998 and is generally recognized as the first real-money internet poker room.

Poker would become especially important in the United States because it created large player networks. Unlike a slot or blackjack game played against the house, poker sites needed enough players online at the same time to fill cash-game tables and tournaments.

That made access to the large U.S. player base commercially valuable.

Early 2000s: Offshore Gambling Becomes Mainstream Online

By the early 2000s, Americans could access offshore sportsbooks, poker rooms and casino sites offering slots, blackjack, roulette and other games.

The legal position was complicated.

There was no federal law creating a nationwide regulated online casino market. At the same time, different federal statutes and state gambling laws could apply depending on the product, the operator and where the player was located.

Calling the entire market a simple “legal gray area” hides that complexity. Some conduct was clearly prohibited, while other questions depended on the interpretation of older gambling laws that had never been written for the internet.

2006: UIGEA Targets Online Gambling Payments

Congress passed the Unlawful Internet Gambling Enforcement Act, usually called UIGEA, in October 2006.

UIGEA did not create a general federal ban on placing an online bet.

Instead, it prohibited gambling businesses from knowingly accepting certain forms of payment connected with unlawful internet gambling and created obligations for payment systems to block restricted transactions.

The word unlawful is important. UIGEA largely depended on other federal or state law to determine whether the gambling itself was illegal.

The practical effect was nevertheless significant.

Payment processing became harder, and several major gambling companies withdrew from the U.S. market. PokerStars, Full Tilt Poker and Absolute Poker were among the operators that continued accepting U.S. players after UIGEA. The Department of Justice later said processors working with those companies disguised gambling payments so banks would process them.

Why UIGEA Changed the Market Without Banning All Online Gambling

UIGEA showed how strongly payment infrastructure can shape an online gambling market.

A gambling website can technically remain accessible, but that does not help much if banks, card networks and processors will not move money between the player and operator.

This distinction is still useful today:

A gambling law can target the wager, the operator, the payment, or all three. These are not necessarily the same legal question.

2011: Black Friday Shuts Down the Largest U.S.-Facing Poker Sites

On April 15, 2011, federal prosecutors unsealed indictments against people connected with PokerStars, Full Tilt Poker and Absolute Poker.

The day became known in poker as Black Friday.

The government seized or restricted control of the companies’ U.S.-facing domains and alleged illegal gambling, bank fraud, money laundering and payment-processing schemes.

The prosecutions focused heavily on how gambling payments had been disguised so U.S. banks would process them after UIGEA.

The result was immediate. Three of the largest poker sites serving Americans stopped operating normally in the United States, and many players temporarily lost access to money held in their accounts.

Full Tilt Reveals Another Risk: Player Balances Were Not the Same as Protected Deposits

Black Friday eventually exposed a problem that went beyond whether online poker itself was legal.

The Department of Justice later alleged that Full Tilt Poker had misrepresented the security of player funds and did not have enough money available to cover all customer balances.

That demonstrated a separate risk of the offshore-era model.

A number shown inside a gambling account is an obligation owed by the operator. Its safety depends on how the operator actually handles customer funds, unless regulation requires stronger segregation and financial controls.

This became one of the arguments for bringing online gambling inside state regulatory systems rather than leaving U.S. players dependent on offshore operators.

2011: The DOJ Changes Its Interpretation of the Wire Act

Another major change happened later that same year.

In a September 2011 legal opinion, the U.S. Department of Justice concluded that the Wire Act’s gambling prohibitions apply to bets involving sporting events or contests, rather than all forms of gambling.

The question arose because New York and Illinois wanted to use interstate communications while selling lottery tickets online.

The DOJ concluded that because those lottery transactions did not involve sports betting, the Wire Act did not prohibit them.

This interpretation became extremely important for online casino regulation.

If the Wire Act had prohibited all interstate transmissions connected with gambling, state online lottery and casino systems would have faced a much larger federal obstacle.

2012: Delaware Authorizes Online Casino Gambling

Delaware passed legislation creating a state-controlled online gambling system in 2012.

The Delaware Lottery would oversee the market, with the state’s licensed casinos providing online gambling to players physically located inside Delaware.

This was a very different model from the offshore market.

The state could now require identity checks, geolocation, approved games, licensing, financial reporting and responsible gambling controls.

2013: Nevada Launches Regulated Online Poker

Nevada became one of the first states to put regulated internet gambling into operation in 2013.

Its system focused on online poker rather than a full online casino market.

That distinction still exists today. Nevada permits regulated interactive poker, but it has not followed states such as New Jersey and Michigan into statewide online slots and table games.

2013: Delaware Becomes the First State to Launch Full iGaming

Delaware launched real-money online casino-style gaming in November 2013.

The Delaware Lottery described it as the first comprehensive state-authorized iGaming system in the country. Players could access games including poker, blackjack, roulette and online casino games while physically located inside the state.

The system also required identity, age and location verification.

2013: New Jersey Launches Online Casinos and Poker

New Jersey legalized internet gambling in early 2013 and launched regulated online casino gaming that November.

Unlike the offshore sites Americans had been using for years, New Jersey’s online casinos were connected to licensed Atlantic City casino operators and regulated by state gaming authorities.

This established a model that later states would broadly follow: licensed land-based or tribal gambling interests partner with technology companies and online brands while the state controls licensing and game approval.

New Jersey’s Casino Control Commission records that internet gaming became operational in November 2013.

2013 Changes the U.S. Online Gambling Model

The importance of 2013 was not simply that a few new casino websites appeared.

The operating model changed.

This state-by-state structure still defines legal U.S. online casinos today.

2018: The Supreme Court Strikes Down PASPA

Another major shift came on May 14, 2018, when the U.S. Supreme Court decided Murphy v. NCAA.

The Court struck down the federal Professional and Amateur Sports Protection Act, usually called PASPA, because its restrictions on state authorization of sports betting violated the constitutional rule against the federal government commandeering state legislatures.

The ruling did not legalize sports betting everywhere automatically.

Instead, it removed the federal rule that had prevented most states from authorizing it. States could then decide for themselves whether to legalize and regulate sportsbooks.

PASPA Changed Sports Betting, Not Online Casino Law

This distinction is often lost in summaries of U.S. online gambling history.

The 2018 Supreme Court ruling was about sports betting.

It did not itself legalize online slots, blackjack or roulette.

States still needed separate authority to offer online casino gambling.

This is why sports betting spread across the country much faster than iGaming. A state can authorize online sportsbooks without authorizing online casino games.

2019: Pennsylvania Launches Online Casinos

Pennsylvania became the next major full-scale iGaming state when online casino games launched in July 2019.

The Pennsylvania Gaming Control Board reported that three casinos launched online casino games during the week of July 15, offering a regulated market for internet slots and table games.

Pennsylvania would go on to become one of the largest regulated online casino markets in the country.

2019: The Wire Act Question Returns

The federal position on the Wire Act did not remain completely settled.

In a new opinion issued in 2018 and published in 2019, the Department of Justice reversed its earlier interpretation and argued that much of the Wire Act could apply beyond sports betting.

This created uncertainty for state lotteries and online gambling systems that relied on communications crossing state lines, even when the players themselves were inside legal jurisdictions.

2020: West Virginia Expands the Regulated iGaming Map

West Virginia authorized interactive wagering through legislation passed in 2019 and subsequently launched regulated online casino gaming.

State law allows licensed operators to accept wagers on authorized interactive games from adults physically located inside West Virginia through approved digital platforms.

2021: Michigan Launches Online Casinos and Sportsbooks

Michigan launched regulated internet casino gaming and online sports betting on January 22, 2021.

The state initially authorized ten operators, with licences available through Michigan’s commercial and tribal casino system.

Michigan quickly developed into one of the country’s largest online casino markets.

2021: Connecticut Launches iCasino

Connecticut followed later that year.

After a soft launch, statewide online casino gaming and online sports betting opened fully on October 19, 2021.

The state’s two federally recognized casino tribes were permitted to offer iCasino games through their online partners.

2021: A Federal Court Pushes the Wire Act Back Toward Sports Betting

The First U.S. Circuit Court of Appeals ruled in New Hampshire Lottery Commission v. Rosen that the Wire Act applies to sports betting rather than non-sports gambling.

The decision rejected the Justice Department’s broader 2018 interpretation in the dispute before the court.

That reduced an important source of federal uncertainty for state lotteries and regulated casino systems.

2024: Rhode Island Becomes the Seventh Live Online Casino State

Rhode Island launched iGaming on March 1, 2024.

The Rhode Island Lottery controls the system, with online slots and live table games offered through the state’s authorized casino structure.

State financial records confirm that iGaming wagering began on March 1 and is limited to players aged 21 or older who are physically inside Rhode Island.

2026: Where Are Online Casinos Legal Today?

As of October 2026, full real-money online casino gaming is live in seven U.S. states:

Nevada operates regulated online poker rather than a full online casino market.

Maine has also authorized online casino gaming, but its market had not yet joined the seven live full-iGaming states as of October 2026.

Because state law changes, our U.S. online gambling laws guide tracks the current position state by state.

Why Are Sportsbooks Legal in More States Than Online Casinos?

The difference comes from separate state laws.

After the Supreme Court struck down PASPA, states moved quickly to authorize sports betting. Many legislatures were willing to legalize wagering on sports without also approving online slots and table games.

Online casino gambling usually generates different political arguments because it makes casino games continuously available on phones and computers.

As a result, a state can have:

• legal retail sports betting
• legal online sports betting
• legal online poker
• legal online casino games

without necessarily legalizing all four.

This is why “online gambling is legal in this state” is often too broad to be useful.

What Happened to Offshore Casinos?

They did not disappear when states began licensing domestic operators.

Offshore casino sites continue to accept some U.S. players, including players located in states without regulated online casino markets.

But the legal and regulatory position is different from using a casino licensed by the player’s own state.

An offshore operator is not automatically made lawful under state law simply because its website can be accessed or because it accepts a U.S. customer’s payment.

Availability and legal authorization are two different things.

What Does State Regulation Actually Change?

Legalization does more than give a casino permission to put a website online.

Regulated states can require:

• operator and supplier licensing
• identity and age verification
• geolocation
• approved games and software
• financial reporting
• responsible gambling controls
• self-exclusion systems
• regulatory complaint procedures

Pennsylvania, for example, required online operators to demonstrate consumer protection, approved games, technical controls and responsible gambling systems before launch.

The important difference is therefore not simply “legal website versus illegal website.”

It is the existence of a regulator with jurisdiction over the operator serving that state’s players.

The U.S. Never Created One National Online Casino Market

Looking back across the timeline reveals something unusual about American online gambling.

The federal government did not eventually replace the offshore market with one national licensing system.

Instead, the country developed a patchwork.

Federal law still sets important boundaries, but individual states decide whether to authorize casino games, poker and sports betting. A casino legal for a player standing in New Jersey can therefore be unavailable to the same person after crossing into a neighbouring state.

Technology makes the gambling global. Regulation makes it local.

U.S. Online Gambling Timeline

From Offshore Access to State-Controlled Markets

The biggest change in U.S. online gambling history is not that Americans went from being unable to gamble online to being able to do so.

Americans were already gambling online through offshore sites in the 1990s and 2000s.

What changed was who controlled the market.

The early internet gambling economy largely connected U.S. players directly to overseas operators. UIGEA attacked the payment routes supporting that system. Black Friday showed the enforcement and player-fund risks. The 2011 Wire Act interpretation then gave states more room to build domestic alternatives.

From 2013 onward, the regulated market grew state by state rather than through one federal licence.

That structure still defines U.S. online gambling in 2026: a national internet, federal legal boundaries and fifty states making many of the decisions that determine what a player can actually use.

For the current position where you live, see our state-by-state U.S. online gambling laws. If you are comparing operators available to American players, see our U.S. online casinos guide.