US Patent 11966923 Systems and methods facilitating account access delegation

System and method for facilitating account access delegation are provided. Login credentials are authenticated for a first account of a first funding source of a first user. A request from the first user to delegate, to a second account of a second user, access to the first funding source is received. A redirected login request from a merchant web application is further received. The redirected login request corresponds to the second account. A determination is made, based on the received request, that the second account is permissioned to use the first funding source. In response to the determination, a login of the first user account is caused on the merchant web application. The logging in of the first user account on the merchant web application causes the first funding source to be applied to an electronic transaction performed on the merchant web application under control of the second user.