This chapter elaborates on different conceptions of justice. Economic justice aims at correcting market outcomes to warrant a fair distribution of resources, whereas tax justice focuses on the fair distribution of the tax burden. Both elements of distributive justice have their own ‘domain-specific’ principles. These principles may collide. Hence, balancing both elements of distributive justice is necessary. However, a balance also has to be sought between economic justice and legal justice and its core principles, such as legal equality, legal certainty and proportionality. Legal justice and economic justice pose diverging demands which the legislature should carefully balance. However, hasty parliamentary decisions and political decisiven...