Yes, you can almost universally use your debit card in Ireland in 2026, as the country has become highly digitized. Major cards like Visa and Mastercard are accepted in virtually every shop, restaurant, and pub. Contactless payment (including Apple Pay and Google Pay) is the standard for transactions under €50, and you can even "tap" for bus and tram fares in Dublin. However, there are two critical tips: first, always choose to pay in the local currency (Euro) if the card machine asks, as this allows your own bank to handle the exchange rate, which is usually much cheaper than the "Dynamic Currency Conversion" offered by the merchant. Second, notify your bank of your travel plans beforehand to prevent your card from being flagged for fraud when you first use it at an Irish ATM or retailer.