Not true since 2012. https://www.nytimes.com/2012/07/14/business/mastercard-and-visa-settle-antitrust-suit.html https://www.nytimes.com/2012/07/14/business/mas

Not true since 2012. https://www.nytimes.com/2012/07/14/business/mastercard-and-visa-settle-antitrust-suit.html https://www.nytimes.com/2012/07/14/business/mastercard-and-v... More details here, but some states ban surcharges while allowing cash discounts: https://www.cardfellow.com/blog/cash-discount-eliminate-processing-fees/ https://www.cardfellow.com/blog/cash-discount-eliminate-proc...