This is allowed in the US. But it's not like the surcharge is tied to the amount of rewards on the card, at least here. If you have a no-rewards card, you pay t

This is allowed in the US. But it's not like the surcharge is tied to the amount of rewards on the card, at least here. If you have a no-rewards card, you pay the same surcharge as if you have a upper-tier Amex. And since most places don't make it very obvious that they're charging a cc surcharge, customers generally don't even realize they're paying it. I was not thrilled when I saw it on my receipt, after not being told there was a credit card charge. I don't mind a surcharge but it felt like a cash-grab because they didn't tell people (or ask them, which would be even better).