Based on the information you provided, it appears that you would be a full year resident of NY and a nonresident of NJ (so you would only pay NJ tax if you had NJ source income). You are domiciled in NY and only living in NJ temporarily without a permanent home in NJ. Therefore, you would not change your residency status at work.See page 40 of the New York state income tax return instructions for a definition of who is considered a resident for income tax purposes.https://www.tax.ny.gov/pdf/curre...See page 8 of the New Jersey state income tax return instructions for a definition of who is considered a nonresident for income tax purposes.http://www.state.nj.us/treasury/...Disclaimer - * I am only providing general advice based on the information provided. You may want to consult your own tax professional about your tax residency.