No, euros are not accepted for daily transactions in Mexico. The official currency is the Mexican Peso (MXN), and while some tourist-heavy areas in the Riviera Maya may accept U.S. Dollars at poor exchange rates, they generally do not recognize the euro. If you bring euros, you will need to exchange them at a Casa de Cambio or a bank, or better yet, withdraw pesos directly from a reputable ATM to get the most competitive rate. For 2026 travel, it is highly recommended to use a contactless travel card for most purchases in cities, as they offer the best mid-market exchange rates without the hassle of physical currency.