Fiscal decentralization in many guises has become a central concern around the world. This paper discusses several aspects of this complex subject that have turned out to be important in policy work on the issue in a number of countries. First, I discuss briefly the meaning and rationale of fiscal decentralization. There is much that has to be disentangled before one can approach the issue in a particular policy setting, including distinguishing between the problems of federal finance and fiscal federalism. Second, I review the issue of the choice of local revenue sources from the perspective of establishing efficient local governments, including the roles of user charges, property taxes, and income taxes. Finally, I sketch some considerations with respect to the design of intergovernmental transfers from the same perspective, with particular emphasis on the desirability in many settings of transfers that are both conditional and equalizing.