How did you come up with that distinction for the purpose of taxes? Where are you getting your ideas from?
I could point you to the Mexican tax law or the US/Mexico tax treaty, but I will point you to the article I already linked above. I wouldn't quote just any random article online. The source is important and you can determine the quality of the author's credentials yourself.
"Note that tax residence is not the same as legal residence. Tax residence is defined in international tax treaties and local tax laws, while legal residence is based in immigration and nationality laws. Under certain circumstances, you may have the legal ability to live in a country and not be a tax resident of that country. On the other hand, you could be living in the same country with expired or no legal documentation and still be subject to payment of income taxes. Generally, you can only be a tax resident of one country at a time, so it鈥檚 important to know who is a tax resident and who isn鈥檛.
In Mexico, tax residence is first understood in light of the tax treaties the country has signed with other nations (the U.S. and Canada, for example). Article 4 of those treaties defines a tax resident as a person who has established an abode in the country. That is, if you have a permanent home in Mexico you are, in the first instance, a Mexican tax resident and subject to pay Mexican income taxes on worldwide income."
Think about what you're saying for a moment. If you were figuring out a question about taxes in the US, would you contact your local bank for tax advice? Contact Hacienda or a qualified, international tax accountant.
First, filing taxes in Mexico has nothing do with nationality. I have no idea where you are getting that idea from. Can you point to something in tax documentation?
Second, the tax treaty discusses聽 property, businesses, independent personal services, government services, students, and much more. The vast majority of IRS documentation does not apply to a single person. That doesn't mean you just disregard all documentation. You find what applies to you. Here is the table of contents for the tax treaty.
Article 1-----------------------------General Scope
Article 2-----------------------------Taxes Covered by the Convention
Article 3-----------------------------General Definitions:
Article 4-----------------------------Residence
Article 5-----------------------------Permanent Establishment
Article 6-----------------------------Income from Immovable Property (Real Property) Article 7-----------------------------Business Profits
Article 8-----------------------------Shipping and Air Transport
Article 9-----------------------------Associated Enterprises
Article 10----------------------------Dividends
Article 11----------------------------Interest
Article 11A--------------------------Branch Tax
Article 12----------------------------Royalties
Article 13----------------------------Capital Gains
Article 14---------------------------Independent Personal Services
Article 15-----------------------------Dependent Personal Services
Article 16----------------------------Directors Fees
Article 17----------------------------Limitation on Benefits
I'd also encourage you to look over the Ley del Impuesto de Sobre La Renta.
In my experience, that isn't a winning argument.
Again, I am pointing to source documents and at least one fairly authoritative expert who wrote an article on the topic. If you want to make your decisions based on anecdotal experiences and the fact that someone said something to you, you can do that. However, you shouldn't offer tax advice and tell people that they do not need to file in Mexico while living here if their income is not Mexican-sourced.
I'm not going to continue the back and forth here because it will be too time-consuming and it's clear to me that you really haven't done due diligence on this topic.
I know that the question of filing taxes in Mexico has come up a few times on this forum. If anyone would like some initial help in getting their feet planted, feel free to send me a message. Like most things in life, doing something right takes more time and effort, but will give you great peace of mind.