First term (1909–1910)

Ahmet Tevfik Pasha's first period of office as grand vizier was one of the direct outcomes of the failed counterrevolutionary 31 March Incident (which actually occurred on 13 April) in 1909. When the absolutists declared the countercoup, they demanded and received the resignation of the previous Grand Vizier Hüseyin Hilmi Pasha. Although their preferred replacement was not Ahmet Tevfik Pasha, his appointment at least fulfilled their demands for the removal of Hüseyin Hilmi Pasha.^[3] Ahmet Tevfik Pasha, who had only reluctantly taken up the post at the urging of the pro-absolutist Sultan Abdul Hamid II, formed a government made up of mostly non-partisan and neutral members and took precautions to limit the growth of violence that had begun in Istanbul and Adana. After the Hareket Ordusu (English: Army of Action) entered Istanbul and restored the constitutional government, and Abdul Hamid was deposed, Ahmet Tevfik Pasha resigned and Hüseyin Hilmi Pasha returned as grand vizier.

Second term (1918–1919)

After World War I and the resignation of Ahmed Izzet Pasha, Ahmet Tevfik Pasha was again appointed grand vizier on 11 November 1918. Two days after his term began, the Allies began their occupation of Constantinople. The Allies pressured Sultan Mehmed VI to dissolve the parliament on 21 December 1918, and for a few weeks, Ahmet Tevfik Pasha's government was dissolved as well. He formed his government again on 12 January 1919, but after the invaders forced him to dissolve it once more, he resigned as grand vizier on 3 March 1919.^[4] A political scandal that contributed to the fall of the government was the escape of Mehmed Reshid from prison and his subsequent suicide, who was high ranking CUP member who was known as the "butcher of Diyarbakır" during World War I. Damat Ferid Pasha accused Tevfik of being soft on the Unionists, which prompted Tevfik Pasha to arrest key committeemen after the event. Ferid Pasha succeeded Tevfik on the 4 March 1919.^[5]

Third term (1920–1922)

On 21 October 1920, he was once more appointed grand vizier, replacing Damat Ferit Pasha. Meanwhile, the Turkish National Movement had established another government in Ankara, proclaiming itself to be the sole government of the nation and rejecting the sultanate. Ahmet Tevfik Pasha offered the nationalist Ankara government to join his monarchical Istanbul government to form one body at the Conference of London in 1921. However, the leader in Ankara, Mustafa Kemal, refused the offer, and the two governments sent separate delegations to the conference, with Ahmet Tevfik Pasha himself leading the Istanbul delegation and Bekir Sami Kunduh leading the Ankara delegation. However, once he arrived in London, Ahmet Tevfik Pasha, in a surprising move, proclaimed that the Ankara government indeed was the sole rightful government of Turkey and allowed Bekir Sami to be the only representative at the conference.

After the abolition of the Ottoman Sultanate on 1 November 1922, Ahmet Tevfik Pasha met with his government. With the Sultan Mehmed VI gone and unable to find a reason to hold their offices any longer, the government began to resign one by one, and Ahmet Tevfik Pasha resigned three days after the abolition on 4 November 1922.