Using trade flows data of ASEAN countries and China from 2002 to 2017, this studyestimates the impact of ACFTA on ASEAN countries and China’s trade balance in general,and also for Indonesia’s trade balance in specific by elaborating the impact of ACFTA onthe trade flows both exports and imports. Using the gravity model and estimating by OLSand PPML, this paper finds that the impact of tariffs elimination due to the implementationof ACFTA increased exports and imports for ASEAN countries and China in general, andfor Indonesia in particular. However, the aggregate trade balances of ASEAN membercountries and China is zero since the impact of ACFTA on imports offset the impact ofACFTA on exports. Tariff’s elimination due to the implementation of ACFTA on Indonesiashows a negative and statistically insignificant effect on imports and exports. Thus, tariffshave not played significant role on increasing Indonesia’s exports and imports. As a result,the impact of ACFTA on Indonesia’s trade balance cannot be quantified clearly since theimpact of tariffs on exports and imports are not significant.