Include Form M-2210 and the federal forms.
M-2210 is necessary to show Massachusetts that you do not owe the underpayment penalty. Otherwise the state may assume that you owe a penalty.
Massachusetts uses federal income so it requires certain federal forms to show how the Schedule B and Schedule D totals were calculated.
You print use Print Center (upper right corner) and select All official forms required for filing. That option will print all the forms you need to send.
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