The present invention is designed to adequately control the transmission of uplink control information (UCI) using UL control channels. According to the present invention, a user terminal has a transmission section that transmits uplink control information (UCI), and a control section that determines a format of an uplink (UL) control channel that is used to transmit the UCI, from a plurality of formats, including a first format, in which the UCI and a reference signal are frequency-division-multiplexed, and a second format, in which the UCI and the reference signal are time-division-multiplexed.