Capitec Bank added 400 000 retail clients in the five months to June 2017, according BusinessTech.
It now has 9 million customers, making it the second biggest bank in South Africa in terms of client numbers.
Capitec Banks was recently named “Best Bank in the World” for the second year running by international banking advisory group Lafferty.
It is the only bank in the world to receive a five-star rating.
Capitec Bank has the lowest bank charges in South Africa, according to the 2016 Solidarity Bank Charges Report.