Filipović was an early activist and member of the Serbian Social Democratic Party in the Kingdom of Serbia, and one of the founders of the Socialist Workers' Party of Yugoslavia (of Communists) (later renamed Communist Party of Yugoslavia) in 1919 and its first political secretary.

He was elected Mayor of Belgrade in the first elections in the Kingdom of Serbs, Croats and Slovenes in 1920, but was forcibly removed after a week and soon imprisoned for his revolutionary activity.
Filipović was an early activist and member of the Serbian Social Democratic Party in the Kingdom of Serbia, and one of the founders of the Socialist Workers' Party of Yugoslavia (of Communists) (later renamed Communist Party of Yugoslavia) in 1919 and its first political secretary.
He was elected Mayor of Belgrade in the first elections in the Kingdom of Serbs, Croats and Slovenes in 1920, but was forcibly removed after a week and soon imprisoned for his revolutionary activity.
Filip Filipović (politician)