Your work as a 1099 contractor, although performed in NY, isn't actually NY income for tax purposes given your situation. It was a one time project, so to speak, and would go on your resident state tax return. If you ask some, they will tell you different, however, here is the important thing to note: this was not work performed in a trade or a business that you own and conduct regularly in NY. It was a one time thing and you are required to report this income to the IRS because of its amount. I do 1099 work meeting clients at their house and place of business and if over the amount, they issue me a 1099. This work I perform is "side work" and not a business that I am running. This gets reported on my Schedule C and flows to my resident state, not the multiple states in which my clients live (Maine, NH, NJ, NY, RI, MA). I hope this helps and eases your mind.