Comment by lotsofpulp

Sorry, I should have specified I was referring to the US. I would be surprised to learn of any other major country that doesn't allow it though, since the US is considered to be among the most hostile to customer protections.

https://www.ftc.gov/business-guidance/resources/new-rules-el...

>Discounts to Customers

>A PCN cannot stop you from offering your customers a discount or another incentive for using a certain method of payment, as long as you offer it to all your customers and disclose the offer clearly and conspicuously. For example, you can offer your customers a discount or a coupon if they pay with cash or a debit card rather than a credit card.