[1] He became involved in politics as a member of the Left Youth Association (BIT) which had a close relationship with the Hungarian Socialist Party (MSZP).

In this capacity he participated in the 1998 parliamentary election, when his name was added to the MSZP's national list.

Tóbiás was elected leader of the new organization, which became the official youth wing of the Socialist Party.

[2] Following the 2010 parliamentary election, he became a close associate and supporter of party chairman Attila Mesterházy.

Tóbiás did not support the full cooperation and unification of the left-wing opposition parties against Viktor Orbán's Fidesz.

[4] In June 2017, Tóbiás was appointed campaign director of the then Prime Minister-candidate László Botka for the 2018 parliamentary election.

Tóbiás resigned from his parliamentary seat due to family issues in October 2019.