The Argentine currency is the peso ($). There are $ 100, $ 50, $ 20, $ 10, $ 5 and $ 2 notes, and 1, 0.50, 0.25, 0.10 and 0.05 cent coins.
The U.S. dollar is the most common foreign currency. Banks and currency \ exchange offices, where you must present your passport, exchange foreign currency.
Shops accept credit cards and dollars.
"Source: Tourism Portal, Ente Turismo de Buenos Aires - www.bue.gov.ar".