Do I need a visa to visit Argentina with a Brazil passport?
Freedom of Movement
Key entry notes
Entry is allowed with a valid ID card that is less than 10 years old.
Puerto Iguazú land border post also allows tourists with driving license who will stay less than 24 hours, but ID card is required to enter other cities.
Brazilians can live and work legally in Argentina under the Mercosur (and Associated Countries) immigration agreement with no requirement other than being a citizen at birth or a naturalized citizen for over 5 years, and passing a background check.
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Brazilians may request lawful permanent resident status in Argentina at any time.
r Visa