Abstract: A bale tagging apparatus for a hay baler for automatically inserting an identification tag into a hay bale at a specified location includes a support member for attachment to a baler housing adjacent a bale chamber and including an elongated reciprocably mounted plunger and an associated intermittently connected cutter for selectively intermittently cutting a tag from a supply roll and forcing the tag through an opening in the wall of the baler housing into position within the bale chamber.