An inter-bank email and mobile invoicing network is disclosed. Embodiments disclosed herein include an inter-bank email and mobile invoicing network that enables customers of banks or independent portals to send invoices to an email address or mobile phone number. The invoice can be received by the recipient within their bank's online or mobile banking site, in the case of banks that belong to a network that is managed by the proprietors of a financial management system and payment hub as disclosed herein. These banks will be referred to as “network banks” herein. The inter-bank invoicing network also refers to a common provider or connected providers of an invoicing and payment service that is linked to banks and to independent service providers.