The invention relates to a method for automatically creasing a folded box having inserted packaged goods, wherein the side walls of the folded box are creased by means of a creasing station which comprises a creasing tool having a rotatably mounted creasing roller for creasing a planar workpiece and a rotatably mounted counter-pressure roller which are retained at one end on a common support, wherein the distance between the two rollers can be varied, wherein the creasing tool is fastened to a movement system for three-dimensional displaceability, and wherein the following steps are carried out: a) providing the folded box, which is open at the top in the vertical direction and has inserted packaged goods; b) determining the dimensions of the folded box and the filling height of the packaged goods; c) creasing the side walls of the folded box, a first side wall being creased at a first creasing height associated with the filling height determined in step b). The counter-pressure roller is mounted parallel to the creasing roller; the counter-pressure roller and the creasing roller can be displaced relative to one another in order to set a distance from one another; and, during the creasing process, when the creasing tool reaches a vertical edge of the folded box, the roller located outside the folded box is pivoted through 90° about the roller located inside the folded box, the distance between the creasing roller and the counter-pressure roller being changed.