The Gataq language belongs to the South Munda subgroup of the Munda branch of the Austroasiatic language family. Within South Munda, Gataq is generally considered to be the first branch off a node that also subsumes the Remo and Gutob languages; this subgroup of South Munda is known as Gutob–Remo–Gataq.
Professor Emeritus Norman Zide writes, "The Gta? (Didayi) language is a phonologically and morphologically divergent branch of the Gutob–Remo–Gta? (GRG) branch of South Munda."