This guidebook is intended to assist Tribal Colleges and Universities (TCUs) by providing a foundational understanding of transfer processes and supporting them in developing meaningful transfer data practices. It provides practical information, tips, and strategies that TCUs can use to deal with transfer data dynamics at their institutions. By establishing proactive, intentional, and supportive transfer data systems, TCUs can help transfer students navigate the transition from one institution to another and provide targeted support to students. These systems can also provide valuable insights and analysis of transfer student data, helping TCUs identify opportunities for improvement.