K Bank launched in 2017, when both KT and Kakao were given licenses to launch Internet-only banks in Korea.[2] These two became the first new banks to launch in two decades.[3] The bank attracted 250,000 customers in its first two weeks.[4]
In May 2021, MBK Partners and Bain Capital invested 200 billion won each in K bank to become the second largest shareholders of the bank.[5]