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