This study aims to determine the extent of Syrian auditors' interest in auditing tax compliance when they are applying both the international auditing standard No. 250 which related to the responsibility of the auditor in relation to fraud, including the declare for tax fraud and the international auditing standard No. 240 which related to the responsibility of the auditor concerning the obligation to laws and regulations, including tax laws and regulations the taxes in the Syrian joint stock companies and follow the procedures provided for in both standards in the audit process.