Originally Posted by Some person

From EU Regulation 2018/302 (applies from 3 December):Let's say that a customer uses a card issued in an EU country and denominated in currency ABC, but that the merchant's local currency is XYZ.

Assume that the merchant wishes to offer DCC, allowing the customer to pay in currency ABC instead of XYZ. Is the merchant then bound, by the anti-discrimination clause, to also offer local customers with XYZ-denominated cards a choice between currencies ABC and XYZ, with the same order of preference in on-screen menus? If so, then this regulation might be what finally stops DCC within the EU (at least for EU cardholders) as local customers would be surprised if terminals were to offer payment in dozens of foreign currencies in addition to local currency.