Provided is a tape cartridge or the like that prevents detection target portions from contacting a finger or the like when an exposed area is provided in a cartridge case to cause the detection target portions of a tape-shaped member to be exposed. A tape cartridge includes a label tape 101 having a plurality of label portions 105 and a plurality of detection target portions 109 and a cartridge case and is installed in a tape feeding apparatus that feeds the label tape 101 based on the passage detection of the detection target portions 109 to separate the label portions 105 at a cut spot 112 on the label tape 101 at a cut position P3 outside the cartridge case. The cartridge case has an exposed area in which the respective detection target portions 109 are exposed, and a distance L1 between the cut position P3 and the upstream end of the exposed area is shorter than a distance L2 between a detection tip-end 109a of the detection target portion 109 corresponding to any of the label portions 105 and the cut spot 112 of the label portion 105 adjacent to the said label portion 105 on a paying-out tip-end side.