I looked into companies that integrate with QB and automatically add credit card surcharges to our invoices. Most companies do NOT have this capability yet (Square and Helcium both say they will be able to do this in about a year) BUT I did find a company who is saying they can do it. It’s PayorCRM. They are expensive, between $900 and $2400/yr depending on the size of your company so my small company decided not to do it, but just wanted to pass on the info I found. Fiat Lux BTW is just an Indonesian company with no phone number or address, they do not do payment processing themselves, they only recommend companies that do payment processing for QuickBooks.