Sole Proprietorship Tax Deadlines in New Hampshire
Federal and state filing dates, extensions, and estimate schedules for 2026.
New Hampshire filing deadline
No state individual income tax. Other business taxes may apply.
Due: N/A
Form: N/A
Estimated payments
No state estimated payment schedule listed.
Due: N/A
FAQ
Does New Hampshire require Sole Proprietorship estimated payments?
Estimated payments are not typically required at the entity level, but confirm with New Hampshire Department of Revenue Administration.
Where can I file New Hampshire Sole Proprietorship taxes?
Use New Hampshire Department of Revenue Administration resources at https://www.revenue.nh.gov for forms and filing instructions.