The official currency in Cuba is the Cuban Peso (CUP) . One Cuban Peso is equivalent to 100 cents, and there are bills of 1, 3, 5, 10, 20, 50, 100, 200, 500, and 1000 pesos, as well as fractional denominations. The Cuban National Peso (CUP) is the official cash currency in Cuba but cannot be exchanged outside of the country. Some casas particulares (guest houses/ bed & breakfasts), and private bars and restaurants prefer cash payments in dollars or euros. It is advisable to exchange GBP for Euros or USD before arriving in Cuba. Some hotels only accept bankcard payments, so it is important to check with your bank before traveling to confirm that your debit, credit, and ATM cards will work in Cuba. Visa, Mastercard, Union Pay, Ocean Card, CABAL, American International Service (AIS), and MIR are the debit or credit cards accepted in Cuba. However, travelers interested in traveling to Cuba are advised to check with the bank where they have their bank account to see if they will be able to use their card in the national territory. No card issued by U.S. institutions works in Cuba, so it is recommended that you verify beforehand that your card is not associated with a U.S. banking institution and secondly, and of great importance, that it is not a card issued by a U.S. bank.