I'm guessing you're just citing what you found in a Google search and have never actually dealt with NY taxes. In reality, NY state demands payment from you if you so much as checked your work email inside JFK while you were waiting for a connecting flight. I know literally dozens of people who can attest to this fact.
I did the best I could by linking to a document regarding the policy being discussed on New York’s state website. Not sure how I could do better unless I had experience litigating this very issue.
> In reality, NY state demands payment from you if you so much as checked your work email inside JFK while you were waiting for a connecting flight.
This qualifies as working within the state of NY, and hence makes you liable for paying taxes on the income (from that work only). I do find it egregious that NY state would go after a worker for checking work email in an airport, but that is a separate issue from what the person I replied to had erroneously insinuated, which is that NY taxes income from work performed outside of NY, even if you move away.
