Should I take Euros or US Dollars to Cuba?

Question: I was advised that the 10% surcharge was eliminated recently. I had intended to travel legitimately to Cuba with Euros rather than dollars for my travel expenses. it does not make sense if the euro is now of the same value as the equivalent amount in dollars anyone know?

Answer: What changed was the exchange rate which went from 1.08 USD to 1.00 CUC.  Now it is 1.00 USD to 1.00 CUC.

When exchanging U.S. dollar banknotes a 10% tax is STILL applied plus an exchange commission. The 10% tax is NOT applied to other currencies, bank transfers, or credit card payments.

For transactions using credit cards, the cards are charged in U.S. dollars plus an extra 3% service charge.(Credit cards issued by U.S. banks cannot be used in Cuba.