New Hampshire’s Form DP-10, the Interest and Dividends Tax return, is no longer required for tax year 2025 or any year after, because the Interest and Dividends Tax was repealed effective January 1, 2025.1New Hampshire Department of Revenue Administration. Repeal of NH Interest and Dividends Tax Now in Effect If you still owe a return for 2024 or any earlier year, though, the obligation stands and penalties keep running on anything unpaid.2New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 Instructions 2024 What follows walks through who has to file, how to work through the form, where to send it, and what late filing costs.
Who Still Has to File
If you were a New Hampshire resident for any part of tax year 2024 or an earlier unfiled year, and your gross interest and dividend income exceeded $2,400 as a single filer or $4,800 for a married couple filing jointly, you owe a DP-10 for that year.3NH Department of Revenue Administration. Interest and Dividends Tax Frequently Asked Questions That duty applies whether or not you had to file a federal return.
Fiduciaries managing estates or trusts with interest or dividend income on behalf of New Hampshire beneficiaries also had to file, as did partnerships, LLCs, and associations with nontransferable shares whose gross interest and dividend income cleared the $2,400 threshold.3NH Department of Revenue Administration. Interest and Dividends Tax Frequently Asked Questions
Part-year residents owe tax only on the share of income earned while living in New Hampshire. The 2024 instructions compute that share by multiplying total annual taxable income by a fraction with the number of resident days over 365, or you can supply other convincing evidence of what you earned during your residency period.2New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 Instructions 2024
What Income Counts
The tax reaches interest from banks, credit unions, bonds, notes, and other debts owed to you, together with dividends from corporations, partnerships and LLCs with transferable shares, and qualified investment companies such as mutual funds. Stock dividends paid in new shares of the issuing company are excluded, as are dividends declared as a return of capital and recognized as such by the IRS.4New Hampshire General Court. New Hampshire Code 77:4 – What Taxable
Two exemptions matter in practice. Interest from bonds or notes issued by New Hampshire or its political subdivisions is excluded by statute,4New Hampshire General Court. New Hampshire Code 77:4 – What Taxable and interest on U.S. government obligations is exempt under federal constitutional protection. Out-of-state municipal bond interest is taxable. Residency drives the question, not where the payer sits, so income from an out-of-state bank or brokerage counts the same as income from a New Hampshire source.
Filling Out the DP-10
Before you start, pull together your federal 1040, every 1099-INT and 1099-DIV you received, Social Security Numbers for you and your spouse if filing jointly, and documentation of any New Hampshire municipal bond or U.S. government interest you plan to subtract.5New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 2024
The form pulls directly from your federal return. Enter interest income from Line 2(b) of your 1040, dividend income from Line 3(b), and any federal tax-exempt interest from Line 2(a). Add those for your subtotal of gross interest and dividends.5New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 2024
Subtracting Exemptions
From gross income, subtract the exemptions allowed under RSA 77:5:6New Hampshire General Court. New Hampshire Code 77:5 – Exemptions
- A base exemption of $2,400 for every taxpayer.
- An additional $1,200 if either spouse reached 65 by the last day of the tax year.
- An additional $1,200 if either spouse is blind.
- An additional $1,200 if either spouse is disabled, unable to work, and under 65.
These stack. A blind taxpayer who turned 65 during the tax year could shelter $4,800 before any tax applied.
Applying the Right Rate
Multiply what remains by the rate for the year of the return:3NH Department of Revenue Administration. Interest and Dividends Tax Frequently Asked Questions
- 5% for tax years ending before December 31, 2023.
- 4% for tax years ending on or after December 31, 2023.
- 3% for tax years ending on or after December 31, 2024.
A single 2024 filer with $10,000 of taxable interest and only the base exemption would subtract $2,400 and owe 3% on $7,600, or $228.
How and Where to File
Calendar-year 2024 filers had an original deadline of April 15, 2025.5New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 2024 If you missed it, file as soon as you can to stop the clock on penalties.
Online filing goes through Granite Tax Connect at gtc.revenue.nh.gov, which also handles payments, account balances, and submission tracking.7NH Department of Revenue Administration. Granite Tax Connect Electronic funds transfer is available through the portal.
Paper returns, with any payment, go to:
NH DRA
PO Box 637
Concord, NH 03302-06375New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 2024
Make any check payable to the State of New Hampshire and write your Social Security Number on it. The postmark counts as the filing date.
The 2024 form and instructions are no longer on the current-year forms page but remain available in the DRA’s document archives. An automatic seven-month extension to October 15 was available for taxpayers who paid 100% of their estimated liability by the April 15 deadline, with no separate application required. The extension gave more time to file, not more time to pay, so any unpaid balance still accrued interest from April 15.
Late Filing Penalties and Interest
Filing late triggers a penalty of 5% of the tax owed, or $10, whichever is greater, for each month or partial month the return stays unfiled.8New Hampshire General Court. New Hampshire Code 21-J:31 – Penalty for Failure to File A return six months late could rack up 30% of the tax in late-filing penalty alone.
Unpaid tax also accrues interest under RSA 21-J:28 at the federal underpayment rate plus two percentage points. For 2026, that rate is 9%.9NH Department of Revenue Administration. Interest Rates for Underpayment and Overpayment of Tax Interest runs from the original due date, so a 2024 return filed in mid-2026 carries roughly 14 months of interest on top of the penalty.
If figures on your return don’t match what financial institutions reported to the DRA, expect an assessment notice. Any 2024 overpayment is refunded only after being applied against outstanding prior-year balances.2New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 Instructions 2024
If You Made 2025 Estimated Payments by Mistake
Through 2024, taxpayers whose liability exceeded $500 had to make quarterly estimated payments on April 15, June 15, September 15, and January 15 of the following year, each equal to 25% of the estimated annual tax.3NH Department of Revenue Administration. Interest and Dividends Tax Frequently Asked Questions No estimated payments are due for 2025 or any later year. If you sent one in anyway, the DRA will not refund it automatically. Request the refund in writing.2New Hampshire Department of Revenue Administration. New Hampshire Form DP-10 Instructions 2024
Federal Deduction for the Tax Paid
Interest and Dividends Tax you pay for 2024 or an earlier year is a deductible state income tax on federal Schedule A if you itemize. You claim it in the year you actually pay it, so a late 2024 payment made in 2026 belongs on your 2026 federal Schedule A, not your 2024 one. The federal SALT cap sits at $40,000 for 2025, or $20,000 if married filing separately, with a small annual adjustment thereafter.10Internal Revenue Service. Deductible Taxes For most New Hampshire filers, where this was the only state income tax, the cap is unlikely to bite.