Abstract: Computer bypass systems and methods using a customer portal of a core account computer system to bypass a core account provider computer system are disclosed. One method comprises receiving at a loan computer system a loan request from an electronic client device and obtaining core account access information comprising a core account provider identifier and core account authentication credentials of the client for a customer portal of the core account computer system. The loan computer system can use the core account authentication credentials to access the core account customer portal and obtain a core account balance and a maximum allowable loan limit. The loan computer system can provide machine readable instructions to render a graphical user interface indicating the maximum allowable loan limit and can receive a requested loan amount, which is used to transfer funds from the core fund to create a loan fund.