In resort towns such as Huatulco you’ll be able to use U.S. currency in addition to Mexican pesos.  If you plan to do some exploring though, you’ll need pesos.

So, where to change your money? The most convenient place is the international airport you’re departing from or Mexico City International Airport.  The exchange rates are comparatively reasonable for the ease they provide.  Another option is to use a Mexican atm.  There are several atm machines located throughout the Huatulco area.

If you don’t have an atm card you can exchange money at a casa de cambio. You can also go to a Mexican Bank.  Most banks in Huatulco are located in Santa Cruz.  You can get a good exchange rate, but you often have a long wait in line also Mexican banks have short hours of operation.  And remember, don’t get excited by your posted bank balance; it’s usually reported in Pesos.

Visa and MasterCard are widely accepted throughout Mexico.  American Express to a lesser extent.  In out of the way places don’t expect to be able to use them.  Your individual Credit Card Company will post the exchange rate of the day and charge accordingly, this will be reflected on your statement.