Massachusetts business filing due dates

The Massachusetts deadlines Ordexly tracks for Oct 2026 to Oct 2027. Every date links to the agency page it was checked against (last checked ). Which ones apply to a business depends on its registrations and filing frequency, so confirm with the agency.

Annual report based on formation date

Massachusetts LLC Annual Report (anniversary). Every Massachusetts LLC files its annual report on or before the anniversary date of its original certificate of organization (foreign LLCs: of registration) (sec.state.ma.us LLC page; 950 CMR 112.14). Ordexly shows the last day of the month before the anniversary month (on-or-before rule, Zach 2026-10-15). Official source.

Ordexly works out this date for each business from its formation month.

Annual reports & franchise tax

DueDeadlineSource
Massachusetts Corporation Annual Report 2027 (calendar-year)official source

Sales & use tax

DueDeadlineSource
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Oct 2026
Moved from Sun, Oct 25 (weekend).		official source
Massachusetts ST-9 Sales and Use Tax (monthly) September 2026official source
Massachusetts ST-9 Sales and Use Tax (quarterly) Q3 2026official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Nov 2026official source
Massachusetts ST-9 Sales and Use Tax (monthly) October 2026official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Dec 2026official source
Massachusetts ST-9 Sales and Use Tax (monthly) November 2026official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Jan 2027official source
Massachusetts ST-9 Sales and Use Tax (monthly) December 2026official source
Massachusetts ST-9 Sales and Use Tax (quarterly) Q4 2026official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Feb 2027official source
Massachusetts ST-9 Sales and Use Tax (monthly) January 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Mar 2027official source
Massachusetts ST-9 Sales and Use Tax (monthly) February 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Apr 2027
Moved from Sun, Apr 25 (weekend).		official source
Massachusetts ST-9 Sales and Use Tax (monthly) March 2027official source
Massachusetts ST-9 Sales and Use Tax (quarterly) Q1 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) May 2027official source
Massachusetts ST-9 Sales and Use Tax (monthly) April 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Jun 2027official source
Massachusetts ST-9 Sales and Use Tax (monthly) May 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Jul 2027
Moved from Sun, Jul 25 (weekend).		official source
Massachusetts ST-9 Sales and Use Tax (monthly) June 2027official source
Massachusetts ST-9 Sales and Use Tax (quarterly) Q2 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Aug 2027official source
Massachusetts ST-9 Sales and Use Tax (monthly) July 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Sep 2027
Moved from Sat, Sep 25 (weekend).		official source
Massachusetts ST-9 Sales and Use Tax (monthly) August 2027official source
Massachusetts Advance payment sales/meals/room tax advance payment (over $150,000 prior-year liability) (monthly) Oct 2027official source

Payroll & withholding

DueDeadlineSource
Massachusetts M-941 Withholding (quarterly filers) Q3 2026official source
Massachusetts M-941 Withholding (quarterly filers) Q4 2026official source
Massachusetts M-941 Withholding (quarterly filers) Q1 2027official source
Massachusetts M-941 Withholding (quarterly filers) Q2 2027official source

Unemployment / reemployment

DueDeadlineSource
Massachusetts DUA Unemployment Contribution / Wage Detail Q3 2026official source
Massachusetts DUA Unemployment Contribution / Wage Detail Q4 2026official source
Massachusetts DUA Unemployment Contribution / Wage Detail Q1 2027official source
Massachusetts DUA Unemployment Contribution / Wage Detail Q2 2027official source

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Nearby: Connecticut due dates · New Hampshire due dates · New York due dates · Rhode Island due dates · Vermont due dates

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Federal due dates · All states · Massachusetts coverage details