The first objective of this paper is to investigate the relationship between book-tax differences (BTDs) and corporate tax revenues (CTRs) in top five ASEAN countries, namely Indonesia, Malaysia, Philippines, Singapore, and Thailand. The second purpose is to examine the moderating effect of the adoption of International Financial Reporting Standards (IFRS) earnings management on the link between BTDs and CTRs. Using the data of 6,638 firm-year observations during the period 2005 – 2018 and analyzing through fixed effects panel regression in STATA using OLS method, the results show that positive BTDs are positively associated with CTRs. This result can be explained that firms with book income exceeds taxable income is most suspicious and may attract closer scrutiny by a revenue department and more likely to be adjusted selected transactions to increase taxable income which eventually in turn increases the level of CTRs. Further examining with moderated hierarchical model, the results also indicate that the effect of BTDs on CTRs depending on the adoption of IFRS and the level of upward earnings management measured by the performance matched discretionary accrual approaches.