National short-term rental registry (Registro Único de Alquileres) mandatory

From 1 July 2025 all operators of short-term rental accommodation (Airbnb, Booking, direct-bookings) must register with the national Registro Único de Alquileres and display the registry number in listings. Designed to enforce licensing compliance in major tourist cities. Related municipal moratoria (notably Barcelona's plan to eliminate tourist rental licences by 2028) continue separately.