New Hampshire Income Tax Calculator

How to Use This New Hampshire Income Tax Calculator

This New Hampshire income tax calculator estimates your annual federal tax liability for 2025 and 2026. Enter your gross wages, filing status, and any pre-tax deductions or credits above. Because New Hampshire levies no income tax on wages — and repealed its Interest and Dividends Tax effective January 1, 2025 — the state line in your results will always show $0.

This tool focuses on your annual tax picture — total taxes owed for the year, effective rates, and net income. For a per-paycheck breakdown, use the New Hampshire paycheck calculator.

New Hampshire's Tax History — From I&D Tax to Zero Income Tax

New Hampshire long maintained a philosophical opposition to broad-based income and sales taxes, reflected in the state's motto "Live Free or Die." Wages were never taxed at the state level. However, interest and dividend income was subject to the I&D Tax for decades:

• Through 2022: 5% I&D Tax on interest and dividends above $2,400 (single) / $4,800 (joint).
• 2023: Rate reduced to 4% as part of the phase-out schedule.
• 2024: Rate further reduced to 3%.
• January 1, 2025: I&D Tax fully repealed under RSA 77:18 — New Hampshire now has zero income tax of any kind.

This change particularly benefited retirees and investors in New Hampshire, who no longer need to track or report investment income to the state. Wage earners were unaffected since the I&D Tax never applied to earned income.

Federal Income Tax — The Only Income Tax New Hampshire Residents Owe

Federal income tax uses a progressive bracket system: each tier of income is taxed at an increasing rate, but only the dollars within each bracket are taxed at that rate. For a single New Hampshire filer in 2026:

• 10% on the first $12,400 of taxable income
• 12% on $12,400–$50,400
• 22% on $50,400–$105,700
• 24% on $105,700–$201,775
• 32% on $201,775–$256,225
• 35% on $256,225–$640,600
• 37% above $640,600

Taxable income is gross income minus the standard deduction ($16,100 for single filers in 2026) or your itemized deductions if those are higher. Your marginal rate is the top bracket you reach; your effective rate is always lower because lower-tier income is taxed at lower rates.

FICA Taxes — Social Security and Medicare

FICA taxes apply to every New Hampshire paycheck regardless of state of residence. They are federal taxes, not state taxes.

• Social Security: 6.2% on wages up to $176,100 (2025) or $184,500 (2026). No further withholding once you hit the wage base.
• Medicare: 1.45% on all wages with no cap.
• Additional Medicare: 0.9% on wages above $200,000 (single) or $250,000 (married jointly) — employee only, no employer match.

Self-employed New Hampshire residents pay the full 15.3% self-employment tax (both halves) on net earnings, but can deduct the employer-equivalent half from gross income to reduce federal income tax.

How Much More New Hampshire Residents Keep vs. High-Tax States

New Hampshire is surrounded by states that impose income taxes. A few annual comparisons for a single filer earning $100,000 in 2026:

• vs. Massachusetts ($100,000): Massachusetts imposes a flat 5% income tax — roughly $5,000 in state tax on $100,000 gross. New Hampshire residents pay $0. Use the Massachusetts paycheck calculator to compare directly.
• vs. Maine ($100,000):Maine's progressive rates reach 7.15%; the effective rate on $100,000 is roughly 5–6% (~$5,000–$6,000 in state tax).
• vs. Vermont ($100,000): Vermont taxes income at up to 8.75%; effective rate on $100,000 is approximately 5–7% (~$5,000–$7,000 in state tax).
• vs. Connecticut ($100,000): Connecticut progressive rates from 3% to 6.99% produce an effective rate of about 4–5% (~$4,000–$5,000 on $100,000).

How to Reduce Your New Hampshire Annual Tax Liability

Because New Hampshire has no state income tax, every pre-tax deduction saves only federal tax — but federal rates reach 22–37%, so the savings are still meaningful.

• Maximize traditional 401(k) contributions — the 2026 limit is $23,500 ($31,000 if age 50+). At the 22% bracket, maxing out a 401(k) reduces federal income tax by $5,170/year.
• Contribute to an HSA — if enrolled in a high-deductible health plan, the 2026 limit is $4,300 (self-only) or $8,550 (family). HSA contributions are pre-tax, growth is tax-free, and qualified withdrawals are tax-free.
• Use a Dependent Care FSA — up to $5,000 per household in pre-tax dollars for childcare or elder care expenses.
• Harvest capital losses — realized investment losses offset capital gains dollar-for-dollar, and up to $3,000 per year can offset ordinary income.
• Adjust your W-4 — if you regularly receive a large federal refund, update your W-4 to reduce withholding and receive more in each paycheck throughout the year.

Tax Disclaimer

This calculator provides estimates for informational purposes only. It is not tax advice. Federal tax brackets, FICA wage bases, standard deduction amounts, and credit phase-out thresholds can change annually. Results reflect 2025 and 2026 tax-year parameters based on IRS publications current at time of publication. Consult a qualified tax professional or CPA for guidance on your specific situation.