Systems and methods for account processing

A method comprising:

• providing a notional participant account using an integration platform module;
• and
• processing a debit transaction for a first transaction amount using the notional participant account and at least one of the integration platform module or a third party services module, the processing the debit transaction including:
• identifying an initial transaction authorization limit and, when the first transaction amount is less than or equal to the initial transaction authorization limit:
• identifying a first balance in a first portion of the notional participant account and allocating first funds in an amount less than or equal to the identified first balance from the first portion of the notional participant account to satisfy all or a portion of the debit transaction;
• when a balance remains in the debit transaction after allocating the first funds, identifying a second balance in one or more other portions of the notional participant account and allocating second funds in an amount less than or equal to the identified second balance from the one or more other portions of the notional participant account to satisfy all or a portion of the remaining debit transaction;
• and
• when a balance remains in the debit transaction after allocating the first and second funds, identifying a participant line-of-credit and allocating the remainder of the debit transaction using all or a portion of the identified line of credit up to a first participant line-of-credit threshold.