The disclosure discloses a tape cartridge including a connecting arm, a guide attaching/detaching part, and a second guide member. The connecting arm rotatably supports a first winding core and a second winding core. The guide attaching/detaching part is configured to detachably attach a first guide member. The first guide member is configured to allow a tape fed out from a first tape roll to pass and to guide the tape by regulating movement in a tape width direction through contact with both end portions of the tape in the tape width direction. The second guide member is disposed on the connecting arm. The second guide member is configured to guide the tape passes while being guided by the first guide member, by regulating movement in a second direction through contact with one side part of the tape in the second direction.