I've been using this method, however the fee I get charged is more than the fee collected from the invoice, because the total invoice amount is higher, therefore QB charges more.  For example:  invoiced customer for $3635 + $109.05 for a credit card processing fee which brought invoice total to $3,744.05.  The charge to me was $111.95.  So I'm still in the hole for $2.90.  I know this is a small amount, but over several invoices it adds up.  There should be a way to have this set up automatically, so that you're breaking even on these charges.