The official currency of Greece is the Euro (EUR). It's recommended that you exchange your currency for Euros before you travel or withdraw Euros from an ATM.
Here are a few tips:
1. Currency - You can pay for goods and services using Euros (EUR), which is the official currency of Greece. Some businesses may accept other currencies like US dollars or British pounds, but the exchange rate may not be favorable, and you may end up paying more than necessary.
2. Cash - It's always a good idea to carry some cash with you, especially for small purchases or in case you encounter a business that doesn't accept credit cards. Most restaurants and cafes in Greece will accept payment by credit card, but some smaller establishments may only accept cash.
3. ATMs - It's important to be aware of potential fees when using ATMs in Greece. Your bank may charge a foreign transaction fee or a fee for using an out-of-network ATM. Additionally, some ATMs in Greece may charge a transaction fee for international cards. To avoid these fees, it's a good idea to withdraw larger amounts of cash less frequently, or to use a credit card for purchases whenever possible.
When using them, the ATMs ask if you would like to use their or your bank's conversion rate. You should always choose the local currency, this way you can avoid the Dynamic Currency Conversion (DCC), a currency conversion rate added by the payment processor.
4. Credit Cards - In Greece, most businesses that accept credit cards will accept Visa and Mastercard, which are the two most widely accepted credit card companies in the country. American Express and other credit card companies are also accepted at many businesses, but not as widely as Visa and Mastercard. It's wise to use them to reduce the number of times you need to get cash from ATMs.