The purpose of this research is to know how the thoughts of Hamka about the freewill in ikhtiār and taqdīr verses according to him in his greatest work namely Tafsīr Al-Azhar and his background thoughts about it. This research type is the qualitative type that based on library research. While in the processing of data analyst, the method that used by researcher is content analysis method and descriptive method. Content analysis method used to analyze the meaning of the ikhtiār and taqdīr verses according to Hamka in the Qur'an. And descriptive method used to describe and express about Hamka's interpretation of free will in taqdīr and ikhtiār verses according to him in tafsīr al-Azhar. This research takes data from one of Hamka's greatest works i.e tafsīr Al-Azhar as primary data and other supporting data as secondary data. The results of this research conclude that Hamka's thoughts of free will for man are that man has freedom in the will and do. Freedom of will and do is possibly possessed by humans because human beings are given reason by God. By using the reason of men weighing which one is good and which is bad. Hamka also believed that the sunnatullᾱh or fate (taqdīr) of God. Hamka says that man should not run away from fate, but must invade into the fate. The thought of Hamka as a rational theological thinker who gives human freedom in the will is influenced by several factors. First, Hamka wants to present a dynamic and rational human portrait, not a fatalist. Humans who are filled with the spirit to strive and work hard to achieve success in both the world and the hereafter while surrendering to God. Second, Hamka wants to eliminate the taqlīd attitude that causes the freezing of the mind to think, which causes people to lag and not develop. Hamka is strongly against taqlīd. Third, Hamka expects a reform movement in Islam through modern and contextual thinking.