In recent years, there has been an increase in work on urban informality in Northern cities. While this newfound focus is welcome, a problem arises when it comes to conceptualizing various practices under study. Specifically, I argue for the importance in differentiating the informality of need - defined here as practices undertaken to fulfill basic needs like housing and income generation - from the informality of desire - defined as activities that serve interests of leisure, aesthetics, and convenience. Using the case of the Red Hook food vendors in Brooklyn, New York, I show how ignoring needs can lead to imprecise conceptualizations, misunderstood intentions, and misread political subjectivity when it comes to informal actions. I move on to show how existing theories concerning informality in the North fail to provide tools for understanding the specific characteristics of needs-based informal practice. I close the paper by arguing that need-driven informality deserves its own set of conceptual tools, and I determine that by turning to Southern theory on informality and inequality, Northern scholars can open helpful new pathways for theory.