Proceedings of 9th International Business and Social Science Research Conference 6 - 8 January, 2014, Novotel World Trade Centre, Dubai, UAE, ISBN: 978-1-922069-41-2 Survey of the Effect of Regulating Tax Accounting on Financial Statements Credibility Hossein Shafiei-Bafti*, Ali-Akbar Darvishi**, Mohammad Safa*** and Mehdi Raad**** Financial statements users are interested on receiving clear and trustable financial information. Some users of financial information believe that regulating different aspects of financial reporting can cause financial statements be more clear and credible. To achieve this goal some groups of users tried to affect regulator bodies and change rules and in some cases they caused companies become more and more limited in choosing the method of reporting. Some governmental agencies for solving this problem and complying governmental needs, tried to regulate tax accounting environments. Governmental regulation caused changes in financial statements reporting environment and financial information quality that companies prepare and render to different users and it caused mandatory reporting about tax be increased. Some regulator bodies and researchers have forecasted regulating tax reporting will increase financial statements quality and credibility. In this survey different variables that regulating tax accounting can affect financial statements credibility are examined. The results of this survey have shown one of the most important advantages of regulating tax accounting is increasing mandatory disclosure and thus will increase financial statements clarity and quality. Thus investors and other users are interested to betterment and making a powerful tax reporting because they believe powerful tax reporting will increase clarity and quality of financial reporting. In this survey by using questionnaire the data required was gathered and analyzed by Likert’s Spectrum and Z-test and for questionnaire reliability Cronbach's Alpha model used. JEL Codes: G01, G11, G14, G18 and H26 *Mr Hossein Shafiei-Bafti, Department of Accounting, Sirjan Branch, Islamic Azad University, Sirjan, Iran Corresponding Author: hossein.shafii@gmail.com **Mr Ali-Akbar Darvishi, MSc student in accounting, I.A.U Iran ***Mr Mohammad Safa, MSc student in accounting, I.A.U Iran ****Mr Mehdi Raad, MA student in governmental management, I.A.U Iran