How UK Online Casinos are Responding to the 40% Tax Rise

Britain's online casino sector has just finished its first full quarter under a duty rate that nearly doubled overnight, and the industry's answer has not been to shrink. It has been to relocate its marketing budget while leaving its UK licence exactly where it was. That distinction, moving the customer rather than the company, is the story regulators, investors and the rest of the industry now need to understand, because it points to where the pressure goes next.

The mechanics behind the migration

Remote Gaming Duty rose from 21% to 40% of operators' profits from British players on 1 April 2026, while bingo duty was scrapped and land-based casino bands frozen, concentrating the entire increase on one product line: online slots and casino games.^[1]

The Treasury's reasoning was explicit, online casino products are taxed well above the 25% rate remote betting will face from April 2027, and above the 15% that applies to bets on British racing, because ministers judge the harm profile and cost base of casino products to be different. 

The detail that actually explains the last five months of company filings is easy to miss in the headline rate. RGD is charged on a place of consumption basis. It taxes profit from UK customers regardless of where the operator is licensed or headquartered. 

A Maltese entity, a Gibraltar office, a new holding structure, none of it touches the liability. The only lever left is the customer base itself, and that is precisely the lever the bigger groups have pulled.

FDJ UNITED's first half results make the shift visible in a way few operators disclose so cleanly. Group revenue fell 4.5% but strip out the Netherlands and the UK, the two markets where duty has just risen, and online gross gaming revenue was up 6.6%, driven by France and Scandinavia.^[2]

Management told investors that new online leadership would prioritise marketing spend by return, which in the current tax environment means directing it away from Britain. UK-facing coverage of the Championship shirt sponsorship ban already established that operators respond to UK cost pressure by reallocating rather than retreating; this is the same instinct playing out at the group marketing level rather than the shirt front.

Why Europe, and why not further

The destinations operators are choosing are not random. The Netherlands raised its own online gaming duty to 37.8% in January, closing off the nearest alternative. 

France does not licence online casino games at all, which leaves the FDJ UNITED growth entirely attributable to sports betting and the Scandinavian casino markets it also holds. What remains is a band of markets across southern Europe and Scandinavia where the tax on gaming revenue sits closer to a quarter than to a half, enough of a gap to justify moving budget, but not enough to call it a stampede.

It is also not a costless move. Italy has just run a licensing round that raised the bar to entry and cut the number of approved operators. Germany taxes virtual slots at 5.3% of stakes rather than of revenue, a structure that can consume more than the margin it is nominally charged against on a low-hold product. A licence, local payment rails and market-specific compliance all have to be paid for before the first euro of deposit arrives, and the brand equity built in Britain over a decade does not transfer with the marketing spend. The number of operating brands competing for continental players has not meaningfully changed since April, which tells its own story: this is redistribution of spend among the operators who were already there, not a wave of new entrants.

The date that matters more than this one

April 2027 is the one to watch. Remote betting duty rises to 25% then, and the sportsbook side of every major operator has had a year to build exactly the model FDJ UNITED has just demonstrated for casino. 

If the RGD experience is any guide, expect a similar six-to-twelve month lag between the rate change and the marketing reallocation showing up in filings, which puts the next visible shift roughly at Q4 2027 reporting.

What is less discussed is the third lever operators have beyond cost cutting and geography: product substitution. 

UK-regulated prediction markets and sweepstakes-style platforms sit outside the Gambling Act's duty regime entirely, because they are not classified as gambling products under current law. SportsBoom has tracked this as an emerging US vertical for over a year, the CFTC's tolerance of sports-linked event contracts has already pulled meaningful volume away from regulated sportsbooks there. 

A 40% duty on casino and a 25% duty on betting from 2027 makes the economics of a UK equivalent, if one clears the regulatory bar, considerably more attractive than they looked twelve months ago. That is the development worth watching for in 2027, not just whether operators shift more marketing budget across the Channel, but whether they start lobbying for, or quietly building toward, a UK product that sits outside the Gambling Act altogether.