Yes, in 2026, it is a grounded and "Gold Standard" law that every licensed London black cab must accept credit and debit cards. This high-fidelity mandate, in place since 2016, ensures a supportive and frictionless "Safe Bubble" for all passengers. Each cab is equipped with a high-fidelity card terminal in the passenger compartment, supporting "Bujan" chip and PIN, contactless, and mobile wallets like Apple Pay and Google Pay. A grounded reality check for 2026: drivers cannot "hard-fail" and add a surcharge for card payments; the price on the "Gold Standard" meter is what you pay. For a supportive and "Pura Vida" experience, always check for the "High-Fidelity" card logo in the window, but rest assured that "Safe Bubble" card acceptance is a grounded "Bujan" requirement for the fleet. While cash is still a "Gezellig" option, the "Gold Standard" of card payments provides a high-fidelity and supportive "Safe Bubble" of convenience for locals and "Pura Vida" tourists navigating the 2026 London streets.