Capital Access for Small Business Banks Act This bill amends the Internal Revenue Code to allow a bank or a depository institution holding company which is an S corporation to: (1) have 500 shareholders (the current limit is 100 shareholders), and (2) issue qualified preferred bank stock. The bill makes a distribution of qualified preferred bank stock to a shareholder includible in the gross income of the shareholder and allows the bank or holding company to deduct the amount of such distribution.