Abstract: The invention relates to a profile system for producing corner formations in dry construction, comprising a fastening profile (4) and a cover profile (5) that can be attached to the fastening profile (4) in order to form a corner of a room. A simple configuration and a secure application is achieved in such a way that the two profile sections (6, 7) can be swiveled against each other by a first hinge (8) about an axis parallel to the longitudinal axis of the profiles (4, 5) and that the two profile sections (6, 7) of the fastening profile (4) comprise receptacles (9, 10) for the cover profile (5) which can be inserted into the fastening profile (4) in the manner of a snap-in connection.