Tax Due Date 2024 Massachusetts Abbreviation. The extension deadline is october 15, 2024 to file your massachusetts income. You must send payment for taxes in massachusetts for the fiscal year 2024 by april 15, 2025.
Federal income tax returns are due on april 15, but there are several other important dates to remember throughout the year. In all other 48 states, the internal revenue service said taxes will be due on monday, april 15.