S Corporation Tax Deadlines in Hawaii
Federal and state filing dates, extensions, and estimate schedules for 2026.
Hawaii 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 Hawaii require S Corporation estimated payments?
Estimated payments are not typically required at the entity level, but confirm with Hawaii Department of Taxation.
Where can I file Hawaii S Corporation taxes?
Use Hawaii Department of Taxation resources at https://tax.hawaii.gov for forms and filing instructions.