New Hampshire Tax Deadlines: Individual & Corporate Filing Guide

New Hampshire Tax Deadlines: Individual & Corporate Filing Guide

Check New Hampshire tax deadlines for individuals and C Corporations. Confirm due dates, extension rules, and exemptions for S Corps and Partnerships.

New Hampshire has no wage income tax but imposes business-level taxes.

New Hampshire Tax Deadlines at a Glance (2026)

Entity Type

Return Due

Extension Deadline

Individuals (Interest & Dividends)

April 15, 2026

October 15, 2026

Business Profits Tax (BPT)

April 15, 2026

October 15, 2026

Business Enterprise Tax (BET)

April 15, 2026

October 15, 2026

Businesses

Applies to corporations, partnerships, and LLCs regardless of federal classification.

Fiscal-Year Filers

Due dates are based on months after year-end.

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Trusted by firms across the board

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Tax Manager

Sama Tributa

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Customer Stories

Trusted by firms across the board

"Research used to be a black hole. Now, I just type the question and get a citable IRS answer in seconds."

Tax Manager

Sama Tributa

"80% faster first drafts. What used to take us two days is now done in two hours."

Managing Partner

Northbridge Tax Advisory