The Arizona Tax Research Association (ATRA) is the only statewide taxpayer organization representing a cross section of Arizona individuals and businesses. Organized in 1940, ATRA is the largest and most respected independent and accurate source of public finance and tax policy information. ATRA represents taxpayers before policy makers at the state and local level. ATRA's fundamental belief is that every governmental expenditure is directly related to a tax. ATRA's goal is efficient statewide government and the effective use of tax dollars through sound fiscal policies.