A method at a user equipment to facilitate splitting of data billing between at least two parties, the method assigning a first subset of application to a first forwarding information base (“FIB”) on the user equipment; associating the first FIB with a first cellular data interface; activating the splitting of data billing on the user equipment; and replacing the association in the first FIB to the first cellular interface with an association between a second cellular data interface and the first FIB.