In this conceptual essay, we offer rationales and evidence for critical components of a working model of text complexity for the early grades. In the first three sections of the article, we examine word‐level, syntax‐level, and discourse‐level features of text, posing questions for future research. In the fourth section, we address elements of text treatments—the collection of texts with which beginning readers will interact longitudinally over the course of their early literacy development. This conceptual essay produces a unified treatment of the complexities of early grade text through the introduction of a theoretical framework, assimilating the extant research into a theory of early grade text and delineating a theoretical and empirical strategy for transforming the framework into a mature model.