Mobile Roaming and Data: Andorra is NOT a member of the European Union or the European Economic Area. As a result, standard 'free EU roaming' does not apply on most foreign mobile plans. Always disable mobile data roaming before crossing the border or purchase a local eSIM/data add-on to prevent heavy roaming fees.

Customs and Allowances: EU citizens only need a valid national ID card or passport to enter. When taking shopping goods out of Andorra, strict duty-free customs allowances apply for tobacco, alcohol, perfumes, and industrial products. Check border allowance limits before returning to Spain or France.

Winter Driving Requirements: From November 1st to May 15th, winter tires or carrying snow chains in the vehicle is strictly mandatory by law on all Andorran roads, regardless of whether snow is actively falling.

Language and Currency: The sole official language is Catalan, though Spanish and French are universally spoken and understood throughout the country. English is widely used in tourist areas and hotels. The official currency in circulation is the Euro (€).