His book Magyar polip – A posztkommunista maffiaállam (2013) describes modern Hungary as a mafia state.

[1] An English translation of the book, Post-Communist Mafia State: The Case of Hungary, was published in 2016.

[2][3] His paternal grandparents were the journalist Elek Magyar and Berta Kürthy, who was granddaughter of the 19th-century Hungarian prime minister Bertalan Szemere.

His father is the writer and theatre manager Bálint Magyar Sr. His mother, Olga Siklós (b. Schwarcz), was born to a Jewish family in Kolozsvár.

Bálint Magyar's wife is Róza Hodosán, a former member of the National Assembly of Hungary.