Patent attributes
A multi-function transaction card may determine whether to submit a first payment as a passive payment device or to receive a second payment from another transaction card. The multi-function transaction card may have a length and a width that are in accordance with a standard for transaction cards. The multi-function transaction card may selectively perform a payment transaction based on determining whether to submit the first payment or to receive the second payment. The payment transaction may be performed by providing first card data to a transaction terminal for processing when the multi-function transaction card is to submit the first payment. The payment transaction may be performed by receiving second card data from the other transaction card, and processing the second card data via online data authentication, or via offline data authentication, when the multi-function transaction card is to receive the second payment.
