To appropriately generate HARQ-ACK codebook even when transmission timings of delivery confirmation signals are configured flexibly, a user terminal according to an aspect of the present disclosure includes a transmitting section that transmits a delivery confirmation signal for a downlink shared channel, based on downlink control information used for scheduling the downlink shared channel, and a control section that determines codebook for the delivery confirmation signal, based on at least one of a transmission slot of the delivery confirmation signal and an uplink control channel resource for the delivery confirmation signal that are indicated by the downlink control information.