MA Form 1-NR/PY Schedule B contains, and is where your entries go, for any reported interest income, dividend income, gains and losses on investment income - IF any of these sources of income were "sourced in Massachusetts"
Thus, if you sold a piece of real estate located in Massachusetts, or any personal property in Massachusetts, or if your business activities (if any) were in Massachusetts.
Nonresidents need not file Massachusetts Schedule B if:
? all your interest and dividend income and certain capital gains was from non-Massachusetts
sources;
? all Massachusetts source interest income you
had was from Massachusetts banks and is taxed
at 5.1% (reportable on Form 1-NR/PY, line 7a); or
? your Massachusetts source gross dividend
income was $1,500 or less (reportable on Form
1-NR/PY, line 24 and, if applicable, Schedule C,
line 32).