Gambling age in Japan 🇯🇵

Japan has a complicated relationship with gambling. Most forms of betting are illegal under Japanese law, yet certain state-sanctioned activities like horse racing, cycling races, and lotteries have operated legally for decades. The minimum age to participate in any of these permitted activities is 20 years old, though a 2022 reform lowered the general age of adulthood to 18 in Japan.

That distinction matters in practice. Even though 18-year-olds are legally adults for most civil purposes, gambling-adjacent activities remain restricted to those aged 20 and over. Private gambling of any kind is a criminal offence, and the country has no licensed commercial casino sector currently operating, despite legislation passed in 2018 to allow integrated resorts.

You must be 20 to gamble in Japan

The legal gambling age in Japan is 20 for all state-permitted betting activities, including horse racing under the Japan Racing Association, motorboat racing, keirin cycling, and the national lottery system. These are the only legal outlets available to residents, and age verification is enforced at point of sale and on official platforms.

No licensed casino currently operates inside Japan, so there is no casino-specific age threshold in effect yet. Online gambling through foreign platforms sits in a legal grey area, and players who access offshore sites do so without any domestic consumer protection. If you gamble online from Japan, the widely recognised minimum age across most regulated markets is 18 years old.

Is online gambling legal in Japan?

Japan’s gambling laws date back to the Penal Code, which broadly prohibits gambling and operating gambling venues. The legal betting age in Japan only applies to the narrow category of state-approved betting formats, not to a liberalised online market. Online casinos and sports betting sites licensed abroad are technically accessible to Japanese users, but no domestic licence exists to regulate them.

The Integrated Resort Implementation Act of 2018 opened the door to land-based casino resorts, but as of 2025 none have opened. Lottery tickets can be purchased online through official government-run channels, and public sports betting via platforms like SPAT4 for horse racing is available digitally. Everything else remains in legally murky or outright prohibited territory.

  • Online casinos: Illegal (no domestic licence; offshore access is unregulated)
  • Land-based casinos: Not yet operational (legislation passed, no venues open)
  • Online sports betting: Legal for state-sanctioned races only
  • Land-based betting: Legal for state-sanctioned events (horse racing, cycling, etc.)
  • Online bingo: Illegal
  • Land-based bingo: Illegal
  • Online lotteries: Legal via official government platforms
  • Land-based lotteries: Legal
  • Prediction websites: Unregulated grey area

Gambling laws and regulations in Japan

The foundation of Japan’s gambling restrictions is Articles 185 and 186 of the Penal Code, which criminalise both playing and organising gambling. Exceptions were carved out legislatively over the decades to permit horse racing, motorboat racing, keirin, and auto racing, each governed by its own dedicated statute and overseen by relevant ministries.

The 2018 IR Promotion Act marked a significant shift, authorising up to three integrated resort casinos across the country. Osaka has been selected as one site, with an opening currently targeted for the early 2030s. Until those venues open, the Penal Code prohibition remains the practical reality for anyone in Japan looking to play casino-style games.

Gambling license in Japan

Japan does not currently issue commercial gambling licences to private operators. Gaming license requirements in Japan are defined under the IR Implementation Act, which sets out a strict concession framework for the future integrated resorts. Applicants must meet rigorous financial, integrity, and compliance standards before a licence can be granted by the national government.

The Casino Administration Committee, established under the IR framework, will serve as Japan’s primary regulatory authority for casino operations. No online gambling licence exists within this framework. State-run betting activities are authorised directly through dedicated legislation and administered by government-affiliated bodies, rather than through a general licensing regime open to private companies.

Responsible gambling in Japan

Problem gambling is a recognised issue in Japan, partly fuelled by the enormous popularity of pachinko parlours, which operate through a legal workaround despite resembling slot machines. The government passed the Gambling Addiction Countermeasures Basic Act in 2018, creating a national framework for prevention, treatment, and support services.

If you or someone you know needs help, the following organisations provide support in Japan: