You can file your federal return jointly, but you will have to file separate Massachusetts return and it would probably be best if you filed New York separate (sincve you are the only one who had New York income and you are required to prepare the "mock' single return to prepare the Massachusetts return.
Massachusetts: If married taxpayers have a Massachusetts residency tax year that begins and ends on different days, they must file married filing separately, assuming each spouse is required to file.
New York: In nearly all cases, you must use the same filing status that you used on your federal return. The only exceptions to this rule apply to married individuals who file a joint federal return and one spouse is a New York State resident and the other is a nonresident or part-year resident. In this case you must either file separate New York State returns or file jointly, as if you both were New York State residents.
See How do I prepare a joint federal return and separate state.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
