What is the difference between the total invoice amount and the available invoice amount?

Different meanings, different contents.

1, different meanings: the total invoice amount refers to the upper limit of the total invoice amount (excluding value-added tax) issued by the pilot taxpayer within one natural month. Available invoice amount refers to deducting the used amount from the total amount issued by the pilot taxpayer within one natural month.

2. Different contents: The total invoice amount includes the maximum total amount of digital tickets, paper-based special tickets and paper-based ordinary tickets that can be issued by the pilot taxpayers through the electronic invoice service platform, and the maximum total amount of paper-based special tickets, paper-based ordinary tickets, value-added tax ordinary invoices (roll tickets), value-added tax electronic special invoices (hereinafter referred to as "electronic special tickets") and value-added tax electronic ordinary tickets (hereinafter referred to as "electronic ordinary tickets") that can be issued through the VAT invoice management system. Available invoice amount, used amount includes the invoice amount issued by the pilot taxpayers through the electronic invoice service platform, and the product of the number of paper-based special tickets, paper-based ordinary tickets, VAT ordinary invoices (roll-type tickets), electronic special tickets and electronic ordinary tickets issued through the VAT invoice management system and the maximum invoicing limit of a single invoice (invoices have many different formats, which should be calculated and summarized separately).