New Hampshire Quarterly Estimated Taxes (2026)

New Hampshire has no state income tax — self-employed workers in New Hampshire only owe federal quarterly estimated taxes. You still pay the IRS four times a year (April 15, June 15, September 15, January 15), covering federal income tax and the 15.3% self-employment tax.

Example: freelancer earning $80,000 in New Hampshire

A single filer with $80,000 of net self-employment income in 2026 (standard deduction, QBI deduction per Form 8995):

Federal self-employment tax	$11,304
Federal income tax	$5,344
Federal quarterly payment	$4,162

Federal figures computed with official 2026 IRS brackets (Rev. Proc. 2025-32).

2026 quarterly due dates

Quarter	Income period	Federal due date
Q1	Jan 1 – Mar 31, 2026	April 15, 2026
Q2	Apr 1 – May 31, 2026	June 15, 2026
Q3	Jun 1 – Aug 31, 2026	September 15, 2026
Q4	Sep 1 – Dec 31, 2026	January 15, 2027

Frequently asked questions

Does New Hampshire require quarterly estimated tax payments?

Only at the federal level. New Hampshire has no state income tax on wages or self-employment income, so self-employed residents only make federal quarterly estimated payments to the IRS.

What is the New Hampshire income tax rate for 2026?

New Hampshire has no state income tax, so the rate is 0% on self-employment income.

When are quarterly estimated taxes due in New Hampshire in 2026?

Federal deadlines apply everywhere: April 15, 2026 (Q1), June 15, 2026 (Q2), September 15, 2026 (Q3), and January 15, 2027 (Q4).

How do I calculate my quarterly taxes as a freelancer in New Hampshire?

Start with the federal side: self-employment tax (15.3% on 92.35% of net earnings) plus federal income tax, divided into four payments. Quartli's free calculator does this instantly using official 2026 IRS figures.

Reviewed by Lena Hanna, CPA · Last updated June 2026 · Federal figures per IRS Rev. Proc. 2025-32; state planning rates per the official 2026 state brackets as compiled by the Tax Foundation.