Does New Hampshire offer a 529 tax deduction?

No. New Hampshire has no state income tax on wages, and the legacy Interest and Dividends tax was repealed effective the 2025 tax year, so there is nothing for a 529 contribution to deduct against. The New Hampshire state tax benefit for 529 contributions is $0.

So is a New Hampshire 529 plan still worth it?

Yes, for the federal benefit. Contributions to the state's UNIQUE College Investing Plan grow tax-deferred, and qualified withdrawals for education are completely free of federal income tax. Avoiding capital-gains tax on decades of growth is a substantial advantage even without a state deduction.

How does the federal tax-free growth benefit work?

In a taxable account you would owe capital-gains tax on investment growth. In a 529 used for qualified education expenses, that growth is never taxed at the federal level. The tool multiplies your projected growth by your capital-gains rate to estimate the tax you avoid.

Can New Hampshire residents use another state's 529 plan?

Yes. Because New Hampshire gives no state deduction, residents are free to choose any state's 529 plan based on fees and investment options without losing a home-state tax break. Many compare the UNIQUE plan against low-cost national plans.

Are 529 withdrawals taxed if not used for education?

Non-qualified withdrawals are subject to federal income tax on the earnings portion plus a 10% federal penalty. Because New Hampshire has no income tax, there is no additional state tax or recapture on a non-qualified withdrawal for a New Hampshire resident.

New Hampshire 529 Plan Tax Benefit Calculator

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New Hampshire levies no state income tax on wages, and its legacy Interest & Dividends tax was repealed effective the 2025 tax year. With no income tax, there is nothing for a 529 contribution to deduct against — so the New Hampshire state 529 benefit is always $0. The real value is federal, and this tool estimates it.

How it works

The state saving is zero by definition. The federal advantage comes from tax-free growth. The tool projects your balance as an annuity of yearly contributions, then values the capital-gains tax you avoid:

state saving = $0   (no New Hampshire income tax)

balance grows: each year → balance = balance × (1 + return) + contribution
growth        = balance − total contributed
federal tax avoided = growth × your capital-gains rate

In a normal taxable account you would owe tax on that growth; inside a 529 used for qualified education expenses, it escapes federal tax entirely.

Example and notes

Contributing $3,000 a year for 18 years at a 6% return grows to roughly $93,000, of which about $39,000 is investment growth. At a 15% capital-gains rate, the 529 saves you about 39,000 × 0.15 = $5,850 in federal tax you would otherwise owe — on top of $0 from New Hampshire. Because the state gives no deduction, New Hampshire residents can freely pick any state’s plan on fees and fund quality. Returns are not guaranteed; this is an estimate.