Resumo: The present system of regional financing in Spain, starting in 2002, is the product of an agreement between the State and all the Comunidades Autónomas and shows a desire for permanence as the fact of taking the form of a Law and establishing an indefinite duration corroborates. Currently, however, a new debate on the reform of the system is open as a consequence both of events closely connected to its own internal features (such as the rise of population in a heterogeneous way in the different Autonomous Communities) and of external events, such as the approval of new Autonomous Statutes that can affect not only the financing of the aforementioned Autonomous Communities but the whole system in itself. Due to this, in this article the constitutional frame of the Spanish system of autonomous financing is analysed and the constitutional principles governing that financing are exposed.
