Prior research on community development capital flows has turned up significant swaths of the United States where no community development financial institution (CDFI) lending activity was reported. Yet these research findings are hampered by the incompleteness of the CDFI lending data. Requiring all certified CDFIs to submit transaction-level data annually would substantially improve the accuracy and usefulness of research. This could change research findings and thereby lead to improved practice and policy decisions. We encourage the CDFI Fund to implement mandatory transaction-level reporting for all CDFIs every year as a critical step toward improved data.