From April 2026, the UK’s gambling tax landscape started to look very different, and the biggest shock was reserved for online casino players, not horse‑racing fans.

Remote Gaming Duty on casino‑style games jumped from 21% to 40%, while bets on UK horse racing were held at 15% under General Betting Duty.

For anyone who uses a hybrid platform that runs both a sportsbook and a casino, that tax rise will have significant knock-on effects that will ultimately trickle down to customers.

Undoubtedly, it will reshape how promotions work, where the bookie makes its money, and how much value they will offer ordinary punters.

For players who mix racing bets with the occasional spin on the slots, it helps to stick with trusted brands, and casino.net has reviewed NetBet Casino in detail, which is useful context as higher taxes force operators to rethink bonuses and promotions.

At the same time, racing has dodged the bullet. UK racing bets, whether on the high street or online, remain on the 15% duty rate, exempt from both the new 40% Remote Gaming Duty on casino and the 25% remote betting rate that arrives for most online sports betting in April 2027.

That creates a two‑tier world where your Saturday flutter on the horses is taxed very differently from your late‑night spin on the roulette wheel!

What Exactly Is Changing?

Depending on whether you keep up to date on the horse racing industry in general, you may not have been aware of the pressure that mounted when it became clear that the Treasury intended to raise betting taxes.

Originally, the government looked at merging remote betting and gaming into one unified tax to simplify the system.

However, critics of the proposal were quick to point out that the cost would significantly outweigh any benefit. Even the BHA submitted a detailed economic analysis, warning that the duty could cost racing at least £66m a year, put thousands of jobs at risk, and do untold damage to Britain’s second‑largest spectator sport (after football).

In the end, it chose a split approach that hits casinos much harder than sports betting. From 1st April 2026, Remote Gaming Duty on online casino products, including slots, roulette, blackjack and similar games, rose sharply from 21% to 40%, specifically from a ‘gaming provider’s profits from remote gaming with UK persons.’

For operators, that is a near‑doubling of the tax on casino profit, and they will not simply absorb that cost out of goodwill. Sports aren’t off the hook either. From 1st April 2027, General Betting Duty introduces a new 25% rate for remote sports bets, up from the current 15% for online betting.

Crucially, though, UK horse racing bets are carved out and kept at 15%, the same rate as shop bets and the existing remote racing duty. That includes all self‑service terminals in betting shops, pool bets on racing and dog racing.

Why Racing Was Spared

Horse racing’s case to government was simple. If you raise betting tax on racing, you risk undermining the sport’s entire funding model. Racing already receives money through the statutory levy on bets, which supports prize money, racecourse investment and the wider racing economy.

Basically, horse racing, more so than any other sport, relies on betting to function because it gets a cut through the levies. Tennis doesn’t. Hockey doesn’t. In fact, no other sport actually depends on millions of people making small wagers every year the way racing does.

Is that a crazy over-reliance on the betting system? Absolutely. It’s also why so many racecourses have been in search of non-gambling sponsors of major events and races. The potential tax hike was a wake-up call, and now the powers that be in racing are scrambling to find alternatives.

In the meantime, the carve‑out for racing is the result. By keeping UK racing bets at 15%, the government has effectively ring-fenced racing from the sharpest tax rises. For punters, it means that a £10 win bet on a horse is treated more gently by the tax man than a £10 spin on a slot, even if both are placed through the same brand’s app.

Hybrid Bookmakers: Two Very Different Businesses

Hybrid operators, which offer both a sportsbook and a casino under one umbrella, now have to manage two very different tax environments side by side.

On the casino arm, every pound of profit is suddenly carrying a 40% duty rate. On the racing and wider sportsbook arm, bets are either held at 15% (for racing) or rising to 25% in 2027 (for other sports).

I know that not many people will be crying into their cornflakes over this; after all, Gambling Commission data put non‑lottery gambling “takings” at about £11.5 billion in the 12 months to March 2024, rising to £12.6 billion in the following 12‑month period, and it’s hard to feel sorry for companies who earn literally billions in profit from gambling.

So why should you care? Because if the taxman is knocking at your bookie's door, you can be sure that somebody somewhere is trying to figure out a way to pass the cost on to you.

In practice, that can show up in several ways. Casino welcome offers may shrink, or come with tougher wagering requirements. I’ll give you an example. If you see a welcome offer that is giving you £100 free with a 40x wagering requirement, what that really means is that you’ll need to place £4,000 worth of bets (40x £100) before you’re allowed to cash out any winnings from that £100 bonus.

We also have loyalty schemes that may shift towards non‑cash perks that cost operators less and game portfolios that may tilt further towards high‑margin slots and away from lower‑margin table games.

Meanwhile, the racing product has more room to remain competitive, because the tax rate on racing bets has not moved. Racing punters become valuable because they now generate betting turnover without carrying the new, heavier casino duty.

What Does This Mean For Everyday Customers?

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Day to day, not a lot will change. If somebody wants to put £20 on I Am Maximus to win the Grand National in 2027, how much their bookie is getting taxed will be of little consequence to them. Likewise, if they fancy a spin on the slots or a game of bingo.

The issue is that operators respond to tax increases over time, and if the government takes a bigger slice, the bookie will look for ways to rebuild its margin. For non‑racing online sports bets, it could eventually mean slightly tighter pricing or fewer super‑generous promotions once the 25% rate kicks in.

Could Higher Taxes Affect Odds?

Over the long term, yes, but not in a headline‑grabbing way. When an operator faces a 40% duty on casino profit, it has three choices. It can accept lower profits, cut costs elsewhere, or increase margins.

For casino players, that means you may have to hunt harder for genuinely good value offers and be more wary of high‑wagering “free” bonuses.

For racing bettors, the tax split actually gives a clue as to where value is more likely to survive. Keeping the rate at 15% is a sign that the government wants to keep the legal racing betting market attractive and avoid pushing punters off to grey markets.

That doesn’t guarantee amazing deals forever, but it does make it more plausible that racing will remain one of the better‑value corners of UK gambling as other products come under heavier pressure.

The main practical takeaway is to be more selective about casino play, especially with brands that now face sharply higher duty on those products. At the same time, recognise that your racing bets sit in a different tax lane and are likely to remain relatively better value than many non‑racing online bets.