A disclosed RFID tag includes a substrate; a chip bonded to the substrate with an adhesive, and including a first connection terminal on a first surface, the first surface being on a side bonded to the substrate; a first antenna wiring formed on the substrate, and electrically coupled to the first connection terminal; and an adhesive layer formed of the adhesive, and including a base portion and a filet portion, the base portion being in an area of the substrate opposed to the first surface of the chip, the filet portion being in an area of the substrate surrounding the chip. The first antenna wiring is electrically coupled to the first connection terminal via a plurality of paths at an outer edge of the filet portion of the adhesive layer.