The lower house of the Czech parliament has voted to dissolve itself, clearing the way for an early election.
The election will end months of political turmoil that has crippled policymaking since the centre-right government of Prime Minister Petr Necas collapsed in June.
It is thought the election will take place in October.
Opinion polls show that the centre-left Social Democrats will be the biggest party, but they will need support from other groups to govern.
The leader of the party, Bohuslav Sobotka, said he would talk to the Communists about forming a partnership.