Online casinos are becoming increasingly popular around the world, attracting millions of players every day. However, the legality of this form of entertainment is not consistent between countries. The following article by In 999 will help you understand whether online casinos are legal in Vietnam, Thailand and the US – three countries with major differences in terms of law, culture and management regulations in the field of online betting.
1. What is an online casino? Why are many people interested in its legality?
An online casino is an online version of a traditional casino, offering games such as baccarat, roulette, blackjack, slots, etc. via an internet platform. Players only need a device connected to the internet to place bets.
Legality is always a top concern because it is directly related to the legal risks of participants and service providers. In addition, understanding legality also helps players avoid fraudulent platforms or those that violate the law in their place of residence.
2. Are online casinos legal in Vietnam?
2.1. Current legal status in Vietnam
In Vietnam, online betting – including online casinos – is not legally recognized as legal for domestic citizens. Current laws such as the Penal Code and Decree 137/2022/ND-CP on administrative sanctions in the fields of culture, sports and tourism prohibit individuals and organizations from participating in or organizing illegal gambling in any form.
2.2. Exceptions for foreign investors
Some legal casino projects are allowed to operate in Vietnam but only serve foreign tourists or high-income citizens on a pilot basis (such as Phu Quoc casino). However, this is a physical casino, not applicable to online casinos.
2.3. Are players subject to penalties?
According to Vietnamese law, people who participate in illegal online betting can be subject to administrative penalties or criminal prosecution depending on the level and amount of bets.
3. Are online casinos legal in Thailand?
3.1. Current laws in Thailand
Thailand has a very strict legal system regarding gambling activities. Currently, most forms of gambling, including online casinos, are prohibited under the Gambling Prohibition Act of 1935. The Thai government regularly cracks down on online gambling sites and takes strong action against both operators and players.
3.2. Some legal loopholes exist
However, some bookmakers operating from abroad still reach players in Thailand thanks to the developed internet infrastructure. Players use VPNs to bypass controls, but this is still illegal and risks being punished.
3.3. What is the future?
In recent years, there have been discussions within the Thai government about legalizing casinos to increase budget revenue, especially after many Thai citizens went abroad to play casinos. However, up to now, online casinos have not been legalized in Thailand.
4. Are online casinos legal in the US?
4.1. Federal and state legal systems
The United States is a country with a strong division of power between the federal government and the state government. Therefore, the legality of online casinos depends on each state. Some states have fully legalized, some only allow sports betting, and some still completely prohibit it.
4.2. States that have legalized online casinos
As of 2025, states such as New Jersey, Pennsylvania, Michigan, West Virginia and Delaware have fully legalized online casinos. Bookmakers are licensed by state gaming commissions, ensuring transparency and safety for players.
4.3. States that have not legalized or limited the form
Many other states such as California, Texas, Florida… have not yet allowed online casinos or only allowed limited forms such as sports betting or poker.
4.4. Federal Law and the Federalization of Online Casinos
The Wire Act and the International Online Player Protection Act (UIGEA) clearly set federal limits on the transfer of money for gambling purposes, but do not prohibit it outright. This gives states the flexibility to develop their own legal systems for online casinos.
5. Legal risks when playing online casino in prohibited countries
5.1. Losing money, not being protected legally
In countries that do not legalize, players will not be protected by law when disputes arise. Foreign bookmakers can block accounts, refuse to pay money without players being able to complain.
5.2. Risk of being administratively or criminally punished
Depending on the regulations in each country, online gamblers can be administratively punished, prosecuted, or have their bank accounts, phone SIMs banned, etc.
5.3. Easily scammed through fake websites
When playing in the “underground” market, players can easily be scammed by unreliable websites, have their personal information stolen or their bets taken.
6. What should you do if you want to play online casino legally?
6.1. Check the laws of your country or state
Before participating, make sure that your place of residence allows online casino gaming. This is especially important if you are living in a country like the US with a multi-layered legal system.
6.2. Prioritize licensed bookmakers in legal countries
If you are in a country that allows online casinos, choose a licensed platform with clear licenses from organizations such as MGA, Curacao, UKGC…
6.3. Consider the risks if playing in an unlegalized market
If you are living in Vietnam or Thailand – where online casinos are not yet allowed – understand that this behavior still has potential legal and financial risks.
The legality of online casinos is very different between Vietnam, Thailand and the US. In Vietnam and Thailand, this is still a prohibited or not officially recognized form, while in the US, depending on each state, whether this activity is legally managed or not. Understanding the legal context will help you make informed decisions, avoid unnecessary risks and ensure a safe and legal entertainment experience.
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