[swiftcoder]

This is explicitly forbidden by almost all card processing networks (and by the government, in many countries). If you report a business who is doing this to the card processor, they'll likely get their card processing privileges suspended.

[DaSHacka]

What's the difference between giving discounts for cash and adding surcharges for cards?

[mercutio2]

I thought they changed the rules around this ~6 years ago, and it’s now allowed (at least in the US)?