I'm looking for something automated to handle this, e.g. an Enhancement or a Script.  One potential problem with using a Script is that we'd also need to 'not' charge a fee if it's a debit card as apparently cc fees aren't allowed to be charged to debit cards; only credit cards.

Maybe we can use a udf checkbox for the debit card piece.

There may be rules as to how you can implement pricing for credit card vs cash.

My understanding ( and I’m not an expert ) is in most cases a discount for cash is acceptable while a surcharge for credit card is not. 

See - https://www.cardfellow.com/blog/cash-discount-eliminate-processing-fees/

I would talk with your credit card processor on this to ensure compliance.  American Payments just introduced a new feature for their Click to Pay which I believe allows for cash discounting but they’d be best suited to answer the detailed questions on when and how that can be implemented. 

I too am using a / code and figuring it by hand.  If somebody figures out something I would love to hear about it.  TIA  Tracy

Contact me if you still need this. I have a script solution for automatically adding a CC_Fee based on a table of permissive states during Shiping/Invoice/Cash Receipts entry..

I highly recommend Connex's work.  He wrote a script many years ago to add environmental fees to a sales order (customer was/is a Michelin tire retailer/small engine repairs.  Still working after all these years.

Hi Connex,

We have a customer that would be interested in this script.  I'll reach out via email.  Thanks!