Social assistance as the technique providing means-tested income guaranteed financed by general taxation in Spain is composed by different benefits. There is not a only one policy, but different measures oriented to different groups of population and organised by different public administrations. During the last two decades, the different levels of public administration have implemented a set of benefits, which observed together can considered as the Spanish ‘safety net’. The main lines of this development has been: a) fragmented in different protection systems (unemployment, pensions, social services), b) subsidiary of the development of these systems and c) decentralized in different levels of public administration (mainly in regional level, i.e. Autonomous Communities).