Under new rules, which will be made mandatory under the Digital Markets, Competition and Consumer Bill currently going through the UK parliament, all fees will have to be reflected in the price up front.
The new rule will also apply to bookings of cinema and train tickets.
Drip pricing is not just the extra terms with an asterisk at the end of a contract (and in small print). It is also any increase in price during the checkout process.
Research shows that drip pricing in the UK, where consumers are shown an initial price slightly lower than the real one, is very common. According to the government, more than half of entertainment providers, 56% of hospitality businesses and 72% of transport and communications companies use the practice.
The government says both practices hinder competition and cost consumers £2.2bn a year.