[1] Nowadays the validity of the group as a taxonomical entity is being questioned, and the interrelationships of its five branches are debated with little consensus.

[4][1] However, in many works, Finnic refers to the Baltic-Finnic languages alone.

[5][6] The subclassification of the Finno-Permic languages varies among scholars.

During the 20th century, most classifications treated Permic vs Finno-Volgaic as the primary division.

In the 21st century, Salminen rejected Finno-Permic and Finno-Volgaic entirely.