In this paper, we extend the standard approach of horizontal tax competition by endogenizing the policy objectives that governments pursue. Following the literature on strategic delegation games, we consider a preplay stage, where jurisdictions commit themselves to act as Leviathan or as benevolent agents. We show that the sub-game perfect equilibria (SPEs) correspond to the three cases of tax competition between (i) the Leviathan and the benevolent government, (ii) both Leviathans, and (iii) both benevolent governments, depending on the form of capital ownership. The results provide grounds for the assumption of government objective made in literature, and explain why some governments behave as Leviathans, while others as benevolent agents in international tax competition.