In today's schools, differences in family income and in school funding create stark discrepancies in the educational experiences, opportunities, and outcomes between student "haves" and "have nots." This chapter describes how equity-focused teacher leaders can use equity audits to positively influence educational policy and practices to reduce socioeconomic disparities in P-12 schools. Beginning with an overview of current research on teacher leadership, leadership for social justice, and equity-focused teacher leadership, the chapter documents the problem of socioeconomic disparities in today's P-12 schools before detailing the background, purpose, structure, and processes of contemporary equity audits. Four accounts of small-scale equity audits conducted by equity-focused teacher leaders are shared and analyzed in terms of teacher leadership, leadership for social justice, and equity-focused teacher leadership. The chapter closes with strategies for engaging stakeholders in constructive, meaningful discussion and action around equity audit findings on behalf of every student we serve. [This is a chapter in: "The Power of Teacher Leaders: Their Roles, Influence, and Impact" (2nd ed.).]