2024 New Hampshire State Tax Deadlines

If you are a resident or have been involved in significant business operations within New Hampshire, then you might be required to file New Hampshire State Taxes. We look at the most important tax deadlines and tax extensions for New Hampshire in 2024.

New Hampshire Business Tax Deadlines for 2024

C Corporation and S Corporation

New Hampshire C Corporation Tax Deadlines for 2024

You must file & pay Business Profits Tax in New Hampshire by April 15, 2025.

  • File Online with the New Hampshire Department of Revenue Administration.
  • File by Mail must be postmarked by the due date.

Applicable forms:

BET - Business Enterprise Tax Return

Form NH-1120 - New Hampshire Business Profits Tax Return

Extension to File Taxes in New Hampshire for 2024

You must send payment for taxes in New Hampshire for the fiscal year 2024 by April 15, 2025.

The Extension Deadline is November 15, 2025, to file your New Hampshire corporate income tax return.

If you have paid 100% of the BET and BPT determined to be due by the due date of the tax, you will be granted an automatic 7-month extension to file your New Hampshire BET and BPT returns.

This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.

Pass-Throughs

New Hampshire Partnership Tax Deadlines for 2024

You must file in New Hampshire by March 15, 2025.

  • File Online with the New Hampshire Department of Revenue Administration.
  • File by Mail must be postmarked by the due date.

Applicable forms: 

BET - Business Enterprise Tax Return

Form NH-1065 - New Hampshire Partnership Business Profits Tax Return.

Extension to File Partnership Taxes in New Hampshire for 2024

You must send a payment for taxes in New Hampshire for the fiscal year 2024 by March 15, 2025.

The Extension Deadline is September 15, 2025, to file your New Hampshire Partnership tax return.

If you have paid 100% of the BET and BPT determined to be due by the due date of the tax, you will be granted an automatic 7-month extension to file your New Hampshire BET and BPT returns.

This is an extension to FILE, not an extension to PAY – payment is still due March 15, 2025.

Individual Tax Deadline for New Hampshire 2024

The State of New Hampshire currently does not have an Individual Income Tax.

Other Tax Considerations

New Hampshire imposes the Interest and Dividends Tax on residents who receive interest and dividend income from investments.

Interest and Dividends Tax Deadline for 2024

The due date for filing and payment is April 15, 2025.

Applicable forms:

Form DP-10 - New Hampshire Interest & Dividends Tax Return.

Extension to File Taxes in New Hampshire for 2024

If you have paid 100% of the Interest & Dividends tax determined to be due by the due date of the tax, you will be granted an automatic 7-month extension to file your New Hampshire Interest and Dividends tax without filing Form DP-59-A.

An extension of time to file does not extend the time to pay the tax due. Payment is still due by April 15, 2025.

Sources

The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.

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