The EBA-lite methodology is a key input in external sector assessments for over three-quarters of IMF member countries, representing a broad set of emerging and low-income economies. The EBA-lite methodology is refined periodically, and this paper provides a comprehensive discussion of the current EBA-lite econometric models and framework which is referred to as EBA-lite 3.0. The most recent refinements to the EBA-lite models included data updates, improved construction of model variables, and exclusion of non-robust variables. This paper also updates operational guidance on the complementary EBA-lite tools, such as the external sustainability approach and the modules for commodity exporters.