LLC Tax Deadlines in Massachusetts
Federal and state filing dates, extensions, and estimate schedules for 2026.
Massachusetts filing deadline
Calendar-year due date follows federal timing for pass-through entities.
Due: Mar 16, 2026
Extension: Sep 15, 2026
Form: State LLC return
Estimated payments
No state estimated payment schedule listed.
Due: N/A
FAQ
Does Massachusetts require LLC estimated payments?
Estimated payments are not typically required at the entity level, but confirm with Massachusetts Department of Revenue.
Where can I file Massachusetts LLC taxes?
Use Massachusetts Department of Revenue resources at https://www.mass.gov/orgs/massachusetts-department-of-revenue for forms and filing instructions.