The currency in Argentina is the
"peso" and it is subdivided in 100 cents.
Cash machines are used by everybody and there are plenty around the city. Every bank has cash machines linked to international networks such as a
Cirrus, Plus, MasterCard, Visa, Maestro, Citibank and others. Simply look for the companies’ logos on bank windows and in cash machine booths.
The best option for exchanging money is a bank (banking hours are 10am to 3pm). There are also many Currency Exchange Bureaus and most hotels exchange money as well. In certain areas of the city it is common to see people on the streets offering money exchange at better rates, but even if it seems tempting, DO NOT ACCEPT, most are fakes. Some businesses and hotels accept dollar bills and usually don't have problems giving change back in pesos, but the rate is always lower than banks. Remember: Do not accept state bonds.
Most businesses, stores, restaurants and bars accept credit cards, but due to the bad economy and inflation it is possible that there is a 15 to 20% surcharge for credit cards payments. We suggest that, before paying with a credit card, you ask and confirm if you will get surcharged. Visa, MasterCard, American Express and Diners Club are the most widely accepted.