In partnership with the Department of Industry and Science, the Australian Bureau of Statistics (ABS) is developing an enduring firm level statistical asset that will increase the capacity of the research community to undertake firm level analysis of micro-economic drivers of performance, competitiveness, productivity and improve the evidence base for policy development and evaluation, leading to more targeted expenditure of government funds. The initial version of the Expanded Analytical Business Longitudinal Database (EABLD) integrates administrative data from the Australian Taxation Office with collected survey data from the ABS for all active businesses in the Australian economy from 2001-02 to 2012-13. This paper provides a summary of the methodology used to create the EABLD, the initial set of data included and a description of potential uses. For example, there are a number of research projects planned which using the EABLD will examine the relationships between business characteristics, innovation, productivity, job creation, entrepreneurship and performance. The EABLD has also enabled Australia to take part in two Organisation for Co-operation and Economic Development distributed microdata projects, looking at the dynamics of employment and micro drivers of productivity.