A financial card having a body with a front surface and a back surface and a primary account number associated with a primary account of a user of the financial card, the card including a magnetic strip positioned on the back surface configured for magnetic encoding including the primary account number. The magnetic strip includes a user definable portion for providing a selectable discretionary encoding thereto. The card also includes a user interface having at least one user input device positioned on the body of the financial card. The user interface is configured for receiving input from the user at a time of use of the financial card selecting a particular account indicator from among a plurality of account indicators each of which is associated with the primary account. The user interface is coupled to the user input device and to the user definable portion of the magnetic strip for providing the selectable discretionary encoding to the user definable portion of the magnetic strip responsive to the selected particular account indicator as received by the user interface at the time of use by the user.