epa12616786 People are seen waiting for the subway train next to a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. ...

epa12616788 People walk past a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV TROSHEV

epa12616785 People ride the subway next to a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV TROSHEV

epa12616784 A man looks at a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV TROSHEV

epa12616783 People are seen waiting in line in front of the Bulgarian National Bank to buy euro coin sets ahead of the euro adoption in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate...

epa12616781 An woman descends an escalator featuring a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV...

epa12616780 A woman passes a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV TROSHEV

epa12616782 A slow-shutter photo shows a woman passing a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV...

epa12616779 People wait in line in front of an exchange office in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV TROSHEV

epa12616778 People ride the subway past a euro adoption poster in Sofia, Bulgaria, 29 December 2025. Bulgaria is set to become the 21st member of the eurozone on 01 January 2026, transitioning from the national lev to the euro amid public concerns that the move could trigger immediate price hikes and a higher cost of living. EPA/BORISLAV TROSHEV