This document discusses challenges and best practices for conducting gender impact assessments (GIAs) to support gender-sensitive policymaking. Key challenges include GIAs being sporadic and limited in scope, insufficient resources, and organizational cultures that resist gender mainstreaming. The OECD Recommendation emphasizes integrating evidence-based gender assessments early in the policy process. For GIAs to be successful, gender expertise and gender-disaggregated data must be available, and frameworks making GIAs mandatory with clear roles, guidelines, and quality control mechanisms should be adopted. The document raises questions about learning from challenges, ensuring institutions are equipped to implement gender analysis, and how analysis results can influence cross-cutting reforms.