Event-triggered business-to-business electronic payment processing apparatuses, methods and systems

The Event-Triggered Business-To-Business Electronic Payment Processing Apparatuses, Methods And Systems (hereinafter "B2B-PAY") provides a business-to-business payment platform which facilitates business to business payment triggered by a user event, and transforms purchase item information inputs or purchase receipt inputs via B2B-PAY components into restricted-use account payment settlement outputs. In one embodiment, a method is disclosed, including: receiving a first payment request from a healthcare provider, the first payment request including healthcare bill information and user payment information loaded via a user vehicle; transmitting a second payment request to an insurance provider, the second payment request comprising an insured amount; receiving an indication of an approved amount from the insurance provider; facilitating payment of the approved amount from the insurance provider to the healthcare provider; calculating a user responsible amount; and facilitating payment of the calculated user responsible amount from the user to the healthcare provider.