Slot RTP (Return to Player, the percentage a game pays back over time) has edged lower on some UK online slots in 2026 because the tax operators pay on online gaming nearly doubled in April.
Facing higher costs, some operators moved certain games to lower-RTP versions. RTP has always varied between games and sites, and this change simply made those differences more noticeable.
What Is Remote Gaming Duty, and What Changed in April 2026?
Remote Gaming Duty (RGD) is the tax that UK-licensed operators pay on the profits they make from online games of chance, such as slots, traditional casino games, and online bingo.
In the Autumn Budget 2025, the government raised it from 21% to 40%, effective from 1 April 2026. The duty is charged on gross gaming yield, which is roughly total stakes minus winnings paid out.
With slots now taxed at close to double the previous rate, the margin operators work with is tighter, and payouts are one of the levers some choose to adjust. Online betting falls under a separate duty, so this specific change applies to casino-style games.
How RTP Settings Can Vary by Market
Many slots aren't built with a single fixed RTP. Studios often release the same title in several configurations, for example 96%, 94% and 92%, and each operator or market can choose which one to run.
So a slot that looks identical can return a different percentage depending on where, and on which site you play it.
In a higher-tax market like the UK in 2026, some operators lean toward the lower-RTP builds to protect their margins. That's why two people can open what appears to be the same game and see different figures in the rules.
How to Check the RTP of Any Slot Before Playing
You don't have to guess. Before you spin, open the game's info or paytable panel, usually the "i" icon or a menu inside the game, and look for the RTP or "Return to Player" line.
It's normally shown as a percentage, sometimes alongside the theoretical range. The check takes a few seconds and lets you compare games on a like-for-like basis. If a title shows a range rather than one number, the version you're playing is the one stated in that panel.
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FAQs
What is a good RTP for a slot?
Around 96% is widely regarded as a solid RTP for an online slot, though plenty sit slightly above or below it.
A higher RTP means more is returned to players over the long run, but it's a long-term average rather than a guarantee for any single session.
Can the same slot have different RTPs?
Yes. Studios often release a single game in multiple RTP configurations, and different operators or markets may run different versions. That's why the same title might show 96% on one site and 94% on another.
Where do I find a slot's RTP?
In the game's info or paytable panel, opened via the "i" icon or the in-game menu. The RTP, or "Return to Player" percentage, is listed there, so you can check it before you play.
