Stores have 2 options to pay invoices: directly from a bank account using ACH or from a credit card.
If a store chooses to pay by credit card an additional processing fee will be added to the invoice. That processing fee is 2.9% + $0.30.
Invoices are processed every 30 days or when a store accumulates $50 in donations. A minimum charge of $1.00 is applied to invoices.