Yes, you can still pay with cash in a London black cab, but it is no longer the only or even the most common method. Since October 2016, Transport for London (TfL) has mandated that all licensed black cabs must accept credit and debit cards, as well as contactless mobile payments like Apple Pay and Google Pay. Every taxi is equipped with a fixed card machine in the passenger compartment, often featuring a screen that allows you to see the fare and add an optional tip. Drivers are legally prohibited from charging extra fees for card payments; the price on the meter is what you pay. While cash remains a legal form of tender that drivers will accept, the modern regulation ensures that passengers never have to worry about finding an ATM before starting their journey. If a driver’s card machine is broken, they are technically required to inform you before the trip begins.