Effects of Proportionate-Share Impact Fees Gregory S. Burge University of Oklahoma Arthur C. Nelson Virginia Polytechnic Institute and State University John Matthews Georgia State University Abstract When it comes to paying for the significant costs of growth, local governments throughout the U.S. are usually the first line of financing. Yet, because of a variety of factors, existing tax, fee, and inter-jurisdictional transfer revenues may not be sufficient. Many hundreds if not thousands of communities use proportionate-share impact fees in part to provide facilities concurrent with the impacts of growth. Impact fees have numerous detractors, many of whom worry about their effect on affordable housing, economic development, and development patterns. A disparate literature has emerged addressing each of these concerns. This paper synthesizes current knowledge about the market impacts of proportionate-share impact fees finding that, for the most part, they facilitate development in several important ways. Policy implications and guidance for future research are offered. Keywords Affordability, Housing, Growth Management, Urban Planning, Impact Fees, Development Fees Impacts of Proportionate-Share Impact fees 1