Uplink data is transmitted efficiently. Provided is a terminal apparatus including a receiver configured to receive a first UL grant, a second UL grant and a random access response grant, and a transmitter configured to perform transmission on a PUSCH. In a case that the transmission on the PUSCH corresponds to the second UL grant to which a CRC parity bit scrambled by a C-RNTI is attached, first transmission is performed on the PUSCH at a transmission time interval of a length indicated using the second UL grant. In a case that the transmission on the PUSCH corresponds to a random access response grant, second transmission on the PUSCH is performed at a transmission time interval of a length of 1 ms.