Europe's €13 Billion Black Market Gambling Problem

A new report has quantified the scale of Europe's unlicensed gambling market, placing its value at up to €13 billion and describing an underground economy that has grown 18% annually since 2019. The study, produced by research firms Regulus Partners and Helios for Euromat, an association representing gaming machine operators, traces the activity across 28 jurisdictions and identifies 25 major brands that account for 64% of all illegal traffic. For a platform built around the preservation and curation of documents, records, and archival material, this report is a rare paper trail into an industry that typically operates in the shadows.

The figures suggest a structural shift rather than a temporary spike. Between 2019 and 2025, the black market's growth rate outpaced that of the regulated sector in most European countries. The researchers mapped hundreds of unlicensed domains, payment processors, and affiliate networks, building what is effectively an archival record of operators who deliberately avoid licensing fees, tax obligations, and consumer protection laws. The 25 dominant brands alone are estimated to handle billions of euros in turnover without any oversight from national regulators. This is the unregulated iGaming market size that policymakers have struggled to quantify.

The UK tax hike and its unintended consequences

Among the most striking findings concerns the United Kingdom. The report projects that the country will contribute nearly €1 billion to illegal gambling following the government's April 2025 increase in remote gaming duty from 21% to 40%. This is the highest tax rate on online gambling in Europe, and the researchers argue that the policy is pushing players toward unlicensed sites that offer lower fees and fewer restrictions. The illegal sports betting Europe segment is expected to grow fastest under this regime.

The logic is straightforward. Licensed operators in the UK must comply with strict anti-money laundering rules, affordability checks, and stake limits. Black market sites impose none of these. The cost of compliance, passed on to players through higher margins, makes legal platforms less competitive on price. When the tax charge nearly doubles, the gap widens further. The report estimates that the UK's illegal market will grow by roughly 30% in the first full year after the tax change, an outcome that regulators appear to have underestimated.

This pattern repeats across Europe. In Germany, where a state monopoly on online slots was relaxed but remains heavily regulated, unlicensed operators have captured an estimated 40% of the digital market. In France, the ban on online casino games has driven players to offshore platforms that openly advertise in French media. Italy, which has one of the most developed licensing regimes, still sees significant traffic to sites that refuse to join the national whitelist. Restrictive gambling regulations Europe wide are creating this demand.

How the black market operates

The report documents the mechanics of how these unlicensed sites function. Many are registered in jurisdictions with weak enforcement, such as Curacao or the Kahnawake Mohawk Territory in Canada. The Curacao Gaming Control Board has limited capacity to police the hundreds of sublicensees operating under its authority. Operators use proxy servers to hide their location, accept cryptocurrencies to bypass banking restrictions, and rely on affiliate networks that are themselves often unregulated. The growth of cryptocurrency gambling payments growth is making it harder for authorities to trace transaction flows. Payment flows are routed through multiple intermediaries, making it difficult for authorities to identify beneficiaries or seize assets.

The 25 major brands identified by the researchers operate across borders with relative impunity. Some have annual revenues comparable to mid-sized licensed operators in Britain or Sweden. Their customer databases are not subject to data protection laws, and their dispute resolution processes, where they exist, are arbitrary. A player who loses a disputed bet has no legal recourse. The report notes that complaints about withheld winnings are common on online forums, but enforcement is rare. Data from traffic analytics firms like SimilarWeb and compliance specialists like Yield Sec confirms these sites attract millions of monthly visits.

While illicit platforms evade oversight, regulated casinos such as ManekiSpin operate with full licensing and audited player protections, offering a documented alternative to the growing black market. Operators like these maintain transparent records of transactions, game fairness certifications, and identity verification procedures. Their financial accounts are subject to regular inspection. The contrast between the two models could hardly be starker.

Enforcement gaps and regulatory fragmentation

One of the report's central conclusions is that Europe's regulatory architecture is not designed for the current scale of the problem. Each jurisdiction issues its own licenses, sets its own tax rates, and pursues its own enforcement actions. A site blocked in the Netherlands remains accessible in Belgium. A payment processor cut off by Swedish banks can shift to a provider in Lithuania. The researchers describe a game of regulatory whack-a-mole in which unlicensed operators are rarely closed down permanently. The European Parliament has debated cross-border gambling issues but passed no binding legislation.

The European Commission has acknowledged the issue but has not proposed harmonized rules for online gambling. Instead, member states are left to negotiate bilateral agreements and share intelligence through informal networks. The report calls for a coordinated database of known unlicensed operators, shared among regulators, payment providers, and internet service providers. It also recommends that tax rates be set at levels that do not incentivize a shift to the black market.

Whether such coordination is politically feasible remains open. National governments guard their gambling tax revenues closely, and each country has different priorities regarding consumer protection, addiction prevention, and industry growth. The report provides the data, but the political will to act remains uncertain.

A market racing against oversight

The 18% annual growth rate means Europe's illegal gambling market could reach €25 billion by 2028 if current trends continue. That would represent roughly a quarter of the continent's total gambling turnover. The report's authors argue that regulators are losing ground, that each year of inaction makes the problem harder to reverse. The black market's infrastructure is becoming more sophisticated, its payment networks more resilient, and its customer base more entrenched. Gambling affiliate marketing unlicensed networks now operate openly, directing traffic from search engines and social media platforms alike.

The question for European regulators is whether they can build an archival record of the black market as thorough as the one operators keep of their own profits. The report is a start. But documents alone do not shut down websites. They do not block bank transfers or freeze assets. They provide evidence. The European Casino Association (ECA) has called for stronger enforcement coordination, but no unified strategy has emerged. What remains to be seen is whether the evidence will be used.