The fact that non-interest banks do not pay or receive interest does not mean that there are no financial benefits for the bank or its depositors. Non-interest banking works on a profit sharing basis, where profits derived from permissible transactions are shared amongst the depositors and the bank’s shareholders
Bank profits can be made by renting out assets and making a return through the rent. Banks can also buy and sell assets with a mark-up which gives the bank a profit.
Non-interest banks can also charge for providing certain services similar to conventional banks, such as cash withdrawals, transfers, etc.