According to the annual sales tax rate study issued by Vertex, Inc., the leading provider of corporate enterprise tax solutions, 554 U.S. cities changed their sales tax rates in 2008. Of those, 200 were newly imposed city tax rates and 307 were straight increases to existing city tax rates. Other changes in sales, transit, and use taxes, combined with new and pending changes for 2009 indicate that state and local governments are scrutinizing tax rates in light of the current economic turmoil.