Double Digger

What is Double Digger?

One of the operator’s most significant challenges is the increase in gambling tax enforced over recent years. Petra has been particularly vocal about this and the company’s profitability has taken a reasonable hit, since the first tax increase to 34.2% of GGR came into effect on 1 January 2025.

Holland Casino now pays 37.8% of GGR to the state, as per the additional increase in 2026, but with labour tax on top the business pays around 52% before they can look at their base running costs. It is not a small burden by any stretch of the imagination, so it is heartening to see the business doing well despite the tightening tax burden.

With such a significant rise in tax, you would forgive the company for cutting wherever possible, but Petra says they have made it work by maximising efficiency, restructuring, and maintaining their offering so the customer doesn’t notice that anything has changed.

How to play Double Digger

A recent Fincord Intelligence report highlighted by the Betting and Gaming Council estimated that illegal online gambling generated around $50 billion in gross revenue globally in 2025. It estimated that around 5,000 operator structures were using more than 15,000 websites and apps.

Other estimates are considerably higher, illustrating how difficult the market is to measure. As an example, separate research from Gaming Compliance International put the value of unregulated online gambling at $5.9 trillion in wagering value in 2025, while estimating that unregulated operators accounted for 78% of global online gaming GGR.

Another report, commisisoned by Euromat, estimates that Europe’s black market has sustained a compound annual growth rate of 18% between 2019 and 2026, and will be worth up to €13 billion by the end of the year.

About Double Digger

Spectrum Gaming Group’s 2022 report, which sits at the heart of the long-running dispute between the major games suppliers, has been unsealed as part of Evolution’s legal case against Black Cube.

Black Cube, an intelligence firm hired by Playtech in 2020 to look into alleged illegal behaviour at its rival Evolution, released a divisive report into Evolution’s actions. Evolution denied and refuted much of its findings.

Evolution then commissioned Spectrum Gaming Group to produce a report on its actions and the validity of the Black Cube report. Produced in 2022, the report has long been subject to confidentiality despite Evolution claiming the report exonerated the company.