My primary residence is in MA and I own a vacation house in ME. During 2020 I worked from "homes", splitting my time between the two roughly evenly. Do I need to file in ME as well as MA, and if so, as a nonresident?
To complicate things, in the past I've split my time between my employer's office in MO and my home in MA. In 2020 I was only in MO for a few days. My W-2 has both MA and MO income and withholding. Do I need to get it corrected to show no MO income?
