The UK's online gambling landscape changed sharply in September 2025. The new national rules capped online slot stakes at £5 per spin for adults and £2 for anyone under 25. Ministers framed the move as a fairness measure that simply puts online casinos on the same footing as land-based venues, where the same ceiling has existed for years. Operators now follow a rulebook that fixes the upper boundary of a single spin and leaves little room for interpretation.