While the official currency in Zermatt is the Swiss Franc (CHF), many large hotels, restaurants, and souvenir shops will accept Euros, but it is generally a bad financial move. If you pay in Euros, the merchant will almost always use a "1-to-1" exchange rate or an even worse proprietary rate, and you will receive your change in Swiss Francs. Essentially, you end up paying a 5–10% premium for the convenience. In 2026, Zermatt is almost entirely "cashless-friendly"; you can use Apple Pay, Google Pay, or a credit card (like Revolut or Wise) for even the smallest purchases like a coffee or a chocolate bar, which gets you the real mid-market exchange rate. If you must carry cash, it is far better to withdraw a small amount of Swiss Francs from an ATM rather than trying to use Euros, which are legally considered "foreign currency" in Switzerland.