A closure assembly for a carton, which includes a closure, a neck to which the closure is mounted and a cutter received within the neck for piercing a foil of the carton. The closure includes a retaining ring for securement around the container neck below an annular flange of the neck, a lid pivotally connected to the retaining ring and a tamper evidence band frangibly connected to the retaining ring. The closure engages the cutter when it is rotated, which causes the cutter to pierce the foil of the carton as the closure is opened. The tamper evidence band has a rotational stop which engages a rotational stop of the container neck to separate the tamper evidence band from the retaining ring on first rotation of the closure in the opening direction.