The invention is directed to an adhesive tape dispenser adapted for use with adhesive tape having a releasable backing such as wax paper, foil or vinyl often used in HVAC applications. The adhesive tape dispenser includes a handgrip for holding the tape dispenser in one hand during use, a finger switch provided on the handgrip and activated to operate a motorized gearing system for automatically removing and storing the releasable backing simultaneously while applying the adhesive tape to a surface, and a light source for illuminating dark or low lit surface areas.