Spain’s Deputy Prime Minister and Minister of Finance, María Jesús Montero, has defended a new fiscal agreement with Catalonia, arguing it promotes solidarity by guaranteeing similar public services across all autonomous regions. However, the agreement, which grants Catalonia greater financial autonomy, has sparked criticism from some, who see it as a step towards secession. Montero emphasized that the agreement establishes a system of ‘singular financing’ for Catalonia, where the region contributes to the state through a percentage of its collected taxes. This contribution, she argues, ensures a level of solidarity that allows for comparable public services across Spain, provided that other regions also make a similar fiscal effort. The agreement also grants Catalonia the power to collect 100% of its taxes through its own tax agency, a move that critics argue further weakens the central government’s authority. The opposition Popular Party, known for its staunch opposition to Catalan independence, has accused the government of pursuing ‘fiscal secessionism’ and has demanded a detailed explanation of the agreement’s implications. However, Montero has dismissed these claims as attempts to score political points and has defended the agreement as a step towards federalism.