The historic preservation revolving loan fund has been a very valuable, albeit largely overlooked, incentive for historic preservation. This thesis explores establishments and structures, as well as the successes and failures of a majority of the revolving loan funds throughout the country. Whether they are nonprofit organizations or governmental entities, the programs’ structural differences are many, but the program administrators’ differences in experience and opinion are few. This thesis attempts to provide an otherwise previously unpublished guide to historic preservation revolving loan funds in the United States—their management structures, their operation, their successes and their failures, and to deliver a recommendation to those organizations that wish to establish a revolving loan fund of their own.