Abstract: This article interrogates the extent to which tax laws are capable of empowering Indigenouspeoples. It employs the concept of an Indigenous tax space, which places spatiality at the center ofthe settler colonial project. The socio-legal history of the Native Village of Kluti Kaah, an Ahtnatribe from southcentral Alaska, constitutes the main case study. In 1987, the tribe attempted totax the Trans-Alaska Pipeline that passed through its traditional lands, creating an Indigenous taxspace wherein tax law and discourse congregated to express and enact Indigenous agency. Thearticle argues that the Indigenous tax space (1) provides a rare opportunity to reappraise thegeographies of tax laws and policies and, more broadly, (2) allows us to explore settler colonialism’s previous and ongoing effects upon Indigenous territories.