Many merchants in the US give a cash discount. A generous interpretation is that this is rewarding the customer for not making the merchant pay credit card fee

Many merchants in the US give a cash discount. A generous interpretation is that this is rewarding the customer for not making the merchant pay credit card fees. A less generous interpretation is that this is to facilitate tax evasion. The truth is probably a mix of both. I have friends with small businesses that basically admitted to the latter.