Nonprofit Tax Deadlines in Massachusetts
Federal and state filing dates, extensions, and estimate schedules for 2026.
Massachusetts filing deadline
Nonprofit annual return generally due the 15th day of the 5th month.
Due: May 15, 2026
Extension: Nov 15, 2026
Form: State nonprofit return
Estimated payments
No state estimated payment schedule listed.
Due: N/A
FAQ
Does Massachusetts require Nonprofit estimated payments?
Estimated payments are not typically required at the entity level, but confirm with Massachusetts Department of Revenue.
Where can I file Massachusetts Nonprofit taxes?
Use Massachusetts Department of Revenue resources at https://www.mass.gov/orgs/massachusetts-department-of-revenue for forms and filing instructions.