✦ Answer

How big is the online casino business?

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May 31, 2026
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6 min read

Quick Answer

The online casino business is a multi-billion-dollar global industry, with estimates placing its market size at over USD $70 billion in 2024 and projected to exceed $150 billion by 2030. For Australian players, the market is particularly complex due to the Interactive Gambling Act 1997 (IGA), which prohibits Australian-based operators from offering most forms of online casino games to residents. Despite this, Australians remain among the world’s highest per-capita gamblers, with offshore online casinos capturing a significant share of their spending. The local “grey market” is estimated to be worth AUD $1.5–$3 billion annually, though exact figures are difficult to track due to the unregulated nature of offshore operators.

Global Market Size and Growth

Revenue and User Base

The global online gambling industry—including casinos, sports betting, poker, and lotteries—was valued at approximately USD $95 billion in 2023, with online casinos accounting for roughly 40–50% of that total. Key drivers include:

  • Mobile gaming: Over 70% of online casino revenue now comes from mobile devices.
  • Live dealer games: A rapidly growing segment that mimics real casino experiences.
  • Cryptocurrency adoption: Bitcoin and other crypto casinos are expanding, particularly in regions with strict regulations.

By 2030, the global online casino segment alone is expected to reach $150–$200 billion, fueled by increasing internet penetration, digital payment innovations, and liberalization in markets like the US and parts of Europe.

Regional Breakdown

  • Europe: The largest regulated market, led by the UK, Germany, and Sweden. The UK Gambling Commission reported £12.7 billion in gross gambling yield for 2022–2023.
  • North America: Explosive growth post-2018 US Supreme Court ruling on sports betting, with online casinos now legal in 7 US states (e.g., New Jersey, Pennsylvania, Michigan).
  • Asia-Pacific: Dominated by unregulated markets, with Macau and the Philippines serving as hubs for offshore operators targeting Australians.
  • Australia: A unique case—strict local laws but high demand, creating a thriving offshore market.

Australia’s Online Casino Landscape Under the IGA

How the Interactive Gambling Act 1997 Shapes the Market

The IGA 1997 makes it illegal for Australian-based companies to offer “click-to-play” casino games (e.g., online slots, roulette, blackjack) to residents. However, it does not prohibit Australians from using offshore online casinos. Key provisions include:

  • Prohibition on Australian operators: No licensed Australian casino can offer online slots or table games—only sports betting and lottery-style products (e.g., Keno) are permitted.
  • No criminal penalty for players: Australians who gamble at offshore sites face no legal consequences, though the government actively blocks unlicensed sites via ISP blacklists (though these are easily circumvented via VPNs).
  • Advertising restrictions: Offshore casinos cannot legally advertise to Australians, but many use loopholes like “sponsored content” on sports streaming sites.

As a result, the Australian online casino market is almost entirely grey market—operated by companies based in Malta, Curaçao, the Philippines, and other jurisdictions. These operators are not regulated by Australian authorities, meaning no consumer protections, no dispute resolution, and no guarantee of fair play.

Size of the Australian Grey Market

Estimating the exact size is challenging due to the lack of transparency, but research from the Australian Institute of Family Studies and the Queensland Government suggests:

  • AUD $1.5–$3 billion is spent annually by Australians on offshore online casino games.
  • Over 1 million Australians engage with online casinos at least once per year, with a core of 200,000–300,000 high-frequency players.
  • Slots (pokies) account for 60–70% of this spending, followed by blackjack and roulette.

For context, Australia’s total gambling expenditure (including land-based pokies, sports betting, and lotteries) is around AUD $25 billion annually. Online casinos represent a growing slice, especially as younger players shift from physical venues to digital platforms.

Key Drivers of Growth

Technological Advancements

  • Live streaming: High-definition live dealer games have bridged the gap between online and land-based casinos, attracting traditional players.
  • AI and personalization: Algorithms tailor game recommendations and bonuses to individual players, increasing engagement.
  • VR/AR: Virtual reality casinos are emerging, though still niche (less than 1% of the market).

Regulatory Shifts

  • Global liberalization: The US, Brazil, and parts of Asia are legalizing online casinos, driving investment and competition.
  • Australia’s status quo: Despite calls for reform (e.g., the 2023 Murphy Report), no major changes to the IGA have been enacted, keeping Australians reliant on offshore operators.

Post-Pandemic Behavior

COVID-19 lockdowns accelerated online gambling adoption globally. In Australia, land-based pokies venues (pubs, clubs) were closed for months, pushing players online. While some returned to physical venues, a significant portion maintained their online habits.

Challenges and Risks for Australian Players

Lack of Consumer Protection

  • Offshore casinos do not comply with Australian responsible gambling codes (e.g., mandatory pre-commitment, loss limits).
  • Disputes over withdrawals or unfair games have no local recourse—players must rely on the operator’s jurisdiction (often weak regulatory bodies like Curaçao eGaming).
  • Tax implications: Winnings from offshore casinos are technically taxable in Australia if considered “income,” though enforcement is rare.

Financial and Security Risks

  • Many offshore sites lack proper encryption, exposing players’ banking details.
  • Cryptocurrency casinos are particularly opaque, with no audit trails for deposits or withdrawals.
  • Banks in Australia often block transactions to known gambling sites, though players use prepaid cards or crypto to bypass this.

Social Harm

Problem gambling rates among online casino users are estimated at 15–20%, compared to 5–10% for land-based gambling. The 24/7 accessibility and lack of physical barriers (e.g., no cash handling) exacerbate addiction.

Future Outlook

The global online casino business will continue to grow, driven by emerging markets and technological innovation. For Australia, the key questions are:

  • Will the IGA be reformed? The 2023 parliamentary inquiry recommended a total ban on credit cards for online gambling and stronger ISP blocking, but political will is uncertain.
  • Could a regulated Australian market emerge? Some analysts argue that licensing offshore operators could generate tax revenue (potentially AUD $500 million+ annually) and improve consumer protection, but this faces strong opposition from anti-gambling advocates.
  • Player behavior: As younger generations (Gen Z, Gen Alpha) grow up with digital-native gambling, the shift to offshore platforms is likely to accelerate.

Key Takeaways for Australian Players

  • The global online casino market is massive (over USD $70 billion) and growing fast, but Australia’s share is constrained by the IGA 1997.
  • Australian players spend AUD $1.5–$3 billion annually at offshore online casinos, which operate outside local consumer protections.
  • No legal risk for players under the IGA, but significant financial and security risks exist when using unregulated sites.
  • Responsible gambling is critical—offshore operators have no obligation to help players set limits or self-exclude.
  • Stay informed: The regulatory landscape may change (e.g., stricter ISP blocks or new licensing models), but for now, the grey market remains the only option for online casino games in Australia.
  • Prioritize safety: If you choose to play, use only well-known offshore operators with valid licenses (e.g., Malta Gaming Authority, UK Gambling Commission), and avoid sites based in unregulated jurisdictions like Curaçao or Costa Rica.