Massachusetts automatically excludes January, February, and March from the mandate period for all part-year residents (including those who were residents as of December 31 of the previous year).
If a taxpayer moved out of MA on the last day of the month, Massachusetts includes the month they relinquished residency in the mandate period (unless other special circumstances apply).
The months following the month the taxpayer relinquished residency are excluded from the mandate period.
A taxpayer who relinquished residency on or before April 29 isn't required to file Schedule HC.