A tape cartridge including a tape capable of recording and reproducing a high accuracy servo signal, by preventing a deformation of the tape by preventing turning up of a front end portion of a tape when the front end portion is adhered to a reel hub. The tape cartridge includes the tape, a single reel having a reel hub around which the tape is wound and a cartridge case in which the reel is installed, and the front end portion of the tape is adhered to the reel hub, and each corner of the front end portion of the tape is chamfered and chamfers are formed.