This document contains the technical appendix for the report, "Equal Is Not Good Enough: An Analysis of School Funding Equity across the U.S. and within Each State." The report describes an analysis of funding disparities between the highest and lowest poverty school districts, as well as districts serving the most and the fewest students of color or English learners. This technical appendix describes the data sources and methodology in detail. [For the full report, see ED626472.]