Abstract: Self-service checkout system having a merchandise-registration device 5 with a scanner 8 for registering the merchandise, a screen 14 for displaying merchandise data, a payment device with at least one coin-depositing and coin-dispensing device and a data-processing device, with the merchandise-registration device 5 comprising a base segment 6 and a head segment 7 which can be pivoted about a vertical axis of rotation V and can be pivoted through 180° with respect to the base segment 6, with the head segment 7 comprising at least the scanner 8 for registering the merchandise, the screen 14 for displaying merchandise data, and the payment device with at least one coin-depositing and coin-dispensing device.