Views that take haecceities to provide metaphysical explanations of the identity of individuals suggest a noteworthy connection between haecceitism and fundamentality. In particular, if we assume that the stock of the world’s fundamental properties (provided there are such properties) suffices to fix the distribution of absolutely all properties, then haecceitism guarantees that qualitative properties cannot, on their own, fix the distribution of non-qualitative properties like haecceities. As a consequence, haecceitism points toward the conclusion that some non-qualitative properties are fundamental. So, for those who hold that fundamental properties are exclusively qualitative, either the assumed conception of fundamentality or haecceitism must be rejected. For the committed haecceitist, a remaining option admits fundamental qualitative as well as fundamental non-qualitative properties.