Today's postsecondary students accumulate college credit and other validated learning experiences from more sources and in more forms than ever before. As credit accumulation options have proliferated, student mobility patterns have also shifted and are now increasingly multi-directional, crossing institutional types, system and state boundaries, and occurring over longer periods of time. The intersection of these trends has exposed systemic problems and the challenges that students face when they attempt to not only earn credits but to move those credits between postsecondary institutions. These systemic challenges disproportionately impact students from lower socioeconomic backgrounds and contribute to lower levels of credential completion. This issue brief introduces holistic credit mobility as a framework for making sense of contemporary student mobility and devising solutions that center the success of mobile students with multiple forms and sources of validated learning. Herein, the authors define holistic credit mobility and highlight strategies to support its effective deployment throughout postsecondary institutions and systems.