House bats are sturdy bats with short snouts, small ears and soft woolly fur. The white-bellied yellow bat is a medium-sized species. It has a head-and-body length of about , a tail length of about , a fore-arm length of about , and weighs around . The colouring is variable, the dorsal surface is some shade of yellow or yellowish-brown, and the ventral surface is whitish or yellowish.
