Apparatus, methods, and computer-readable media for facilitating signaling of PUCCH and PUSCH simultaneous transmission or multiplexing are disclosed herein. An example method for wireless communication at a UE includes receiving, from a base station, an overlapping uplink transmission configuration. The example method also includes detecting an occurrence of an overlapping uplink transmission comprising at least a portion of uplink control information and at least a portion of uplink data overlapping in a time domain. Additionally, the example method includes transmitting at least one of the uplink control information or the uplink data based on the overlapping uplink transmission configuration.