this is from NYS website
IT-203 nonresident and part-year resident income tax return information
You must file Form IT-203, Nonresident and Part-Year Resident Income Tax Return, if you:
were not a resident of New York State and received income during the tax year from New York State sources, or
moved into or out of New York State during the tax year.
You are subject to New York State income tax on:
Income you received from New York sources while you were a nonresident.
this would indicate it's taxable
