. such secured loans to the firm or to other affiliates are generally limited to 10% ( 10 % ) of the banking subsidiary 2019s total capital , as determined by the risk- based capital guidelines ; the aggregate amount of all such loans is limited to 20% ( 20 % ) of the banking subsidiary 2019s total capital . the principal sources of jpmorgan chase 2019s income ( on a parent company 2013only basis ) are dividends and interest from jpmorgan chase bank , n.a