Those charged with implementing information technology often face the daunting task of assessing the total organizational costs of such initiatives. Our study posits evaluating such expenditures as IT transition costs - organizational resource expenditures stemming from a positive IT investment decision. A content analytic review of academic, IT-related articles yielded 57 cases germane to the construct. Data produced a meaningful and comprehensive taxonomy that distinguished IT transition costs by two dimensions: goal (prescriptive, evaluative, adaptive, corrective) and target (human, structure, process, technology). The significance of the taxonomy as a useful guide to both practitioners and future research is discussed