The U.S. dollar is the most common foreign currency. Banks and casas de cambio (currency exchange offices), where you must present your passport, exchange foreign currency. Shops accept credit cards and dollars.

The exchange rate in Argentina is convenient for the foreign tourist.
The main banking area is located in the so-called "city". This area comprises the first five blocks (numbered 100 to 500) of San Martín, Reconquista, 25 de Mayo, Sarmiento, Presidente Juan Domingo Perón and Mitre streets.
The U.S. dollar is accepted in most shops, but it is convenient to exchange them for pesos in casas de cambio or banks.