I'm going to have a direct contract with US company and would like to live and pay taxes in AR (BA)
Is the US company that is going to be paying your salary registerd with AFIP to do business in Argentina?
If so, I believe the company would be able to provide you with a "work contract" and "sponsor" you (at migraciones) for a visa to work in Argentina
There are several monotributo categories, but what to do if your sallary more than in last category?
Gestiona el Monotributo de forma sencilla desde acá. Date de alta, consulta tu deuda, vencimientos, imprimí tus constancias, realiza pagos y mucho más.
monotributo.afip.gob.ar
Do I still have an ability to avoid to pay huge taxes?
If your salary is higher than any of the categories for the monotributo you will not be able to inscribe as a monotributo.
How to count your incoming money in peso if you have contract in dollars and going to recieve money to dollar's account ?
I'm assuming the company is paying your salary in dollars and you are not billing individual clients, but even if you were going to be doing that, you I don't think you can get a work visa for that reason alone.You would have to get temporary residency based on another category first.
If you are "self employed" as indicated in the title of this thread you will not be able to get a work visa. The "digital nomad visa" does not yet (and may never) exist.
I am not sure, but even if you had a work contract and you were being paid in dollars from the USA, you might have to convert those dollars to pesos at the official rate within five days of receiving the funds. That's how it works for individuals who are working in Argentna and billig foreign clients.
As far as I know, they do not have "work visas" which allow them to do this. They are ether Aegentines or foreigners with temporary residency based on another category or they have permanent residency.
If you can receive your salary in a US bank and use Western Union to transfer the funds at the WU rate, you would receive almost twice as many pesos in Argentina than you would if the dollars must be paid directly to your dollar account in an Argentine bank and then converted to pesos at the official rate.
If the company is not registered with AFIP and cannot sponsor you for the work visa, you will not be able to open a bank account in which to receive your salary, and if that's the case, you won't be able to work or live in Argentina "legally" with your family, either, unless, as SecretShopper indicated, your wife is Argentine.
Based on what I've read in this forum, and from conversations with friends who are inscribed as monotributo, that category is ideal for not paying high income tax rates, but it obviously has its limits.
I don't know what income tax rate you would have to pay, but if you receive your salary in dollars that must be converted to pesos at the official rate, it might not matter what the tax rate is after you calculate what your "salary" will be as a result.
You might just say no.
Whatever you decide to do, I suggest you do it before the climate change or the next pandemic or the World War III lockdowns begin and travel gets restricted.
Imagine what your life in Argentina will be like if/when any of those happen, especially if you are here with your family on expired tourist pemits
Even if none of them do, imagine what would happen to you and your family if the company you are/would be working remotely for went out of business or terminated your agreement and you were stuck here with no income