He said he doesn't work in Argentina.
Actually, he said:
[background=rgb(252, 252, 252)](Not retired, but don't work here...[/background][background=rgb(252, 252, 252)]work remotely abroad.[/background][background=rgb(252, 252, 252)]) [/background]
Which means:
I sit with my computer in Buenos Aires and I work for a company called XX in the US.
Technically, he
is working in Argentina for a foreign customer/employer.
Think about it this way: if the US company sent him to BsAs to work remotely, they would have needed a working VISA for him. In the same way, when an independent worker moves to BsAs autonomously to work remotely, the situation is not any different - he comes here to work.
Now, it is true that "working remotely" may also mean "Every 4 months I move to a different country and I keep working for XX in the US - then where should I pay my taxes?". The answer is: where the center of your business is (where you have a house in your name/bills/bank accounts/family).
If you spend in Argentina most of the year (183 days or more), you reside here and should pay your taxes here.
Now, why do people insist they live in their home country, when nowadays they just go there on holiday for a few weeks?
1) They know that tax system better
2) That tax system is utterly convenient and simple, while the Argentinian you most likely will need an accountant to figure out your taxes
3) The US taxes your worldwide income, so you'd have to file there anyway (but you should declare yourself a citizen living abroad and pay very little, reporting your income and taxes paid abroad)
4) They genuinely think this is just temporary, but it ends up dragging for years
We had a thread this year from a citizen of Ireland, who has been here for 4 years, but that kept paying his taxes in Ireland. Guess what? AFIP knocked on his door and pretended their share.
That said, I don't know about the tax system in Argentina (I am new here), but in my home country, paying a fine is cheaper than paying taxes... and this is why we have been having tax evasion in full blown for ages.