Massachusetts Sales Tax Due Dates — 2026
Exact Massachusetts sales tax filing deadlines for 2026 and 2027 — every period, already adjusted for weekends and holidays. Find your filing frequency, see the dates, and add them to your calendar.
Massachusetts Monthly Sales Tax Due Dates — 2026
| Filing period | Due date |
|---|---|
| December 2025 | Fri, January 30, 2026 |
| January 2026 | Mon, March 2, 2026moved off weekend/holiday |
| February 2026 | Mon, March 30, 2026 |
| March 2026 | Thu, April 30, 2026 |
| April 2026 | Mon, June 1, 2026moved off weekend/holiday |
| May 2026 | Tue, June 30, 2026 |
| June 2026 | Thu, July 30, 2026 |
| July 2026 | Mon, August 31, 2026moved off weekend/holiday |
| August 2026 | Wed, September 30, 2026 |
| September 2026 | Fri, October 30, 2026 |
| October 2026 | Mon, November 30, 2026 |
| November 2026 | Wed, December 30, 2026 |
Dates are adjusted for weekends and U.S. federal holidays. Some states observe additional state holidays — always confirm the exact date with the Massachusetts Department of Revenue.
Massachusetts sales tax filing rules
Good to know
Massachusetts returns are due on the 30th of the month following the period.
Good to know
Large taxpayers may owe an advance payment of tax before the period closes.
Filing Massachusetts sales tax late
Massachusetts charges a late-filing and late-payment penalty plus interest on any unpaid tax, and most states apply a minimum penalty even on a zero return. File on time — even a return with no tax due must be filed. Confirm current penalty amounts with the Massachusetts Department of Revenue.
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Frequently Asked Questions
Official sources
Last verified 2026-05-30 against state revenue references. This page is for general information, not tax advice — confirm your specific due dates with the Massachusetts Department of Revenue.
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