New Hampshire doesn’t charge a state capital gains tax on home sales. Never has. If you sell your house in the Granite State, the only capital gains tax you’ll face is federal. And even that might be $0, depending on how long you’ve lived there and how much profit you pocket.
New Hampshire is one of nine states with no state-level capital gains tax on real estate. Home sellers in the Granite State owe federal capital gains tax only on profit that exceeds the IRS Section 121 exclusion, which allows individuals to exclude up to $250,000 in gain and married couples filing jointly to exclude up to $500,000.
But “no state tax” doesn’t mean “no tax.” I’ve watched too many NH homeowners assume they’ll walk away scot-free and then get blindsided by a five-figure federal bill. The math matters, so stick with me.
What Counts as a Capital Gain on a Home Sale?
A capital gain is the profit left over after you subtract what you paid for the house (plus improvements) from what you sold it for. The IRS looks at three numbers.
Your cost basis is the original purchase price, plus closing costs, legal fees, and agent commissions from when you bought. Then you calculate your adjusted basis by adding any tax-deductible capital improvements (new roof, full kitchen remodel, garage addition) and subtracting any depreciation you claimed. Finally, your capital gain is the sale price minus the adjusted basis. Positive number? You’ve got a gain.
One mistake I see constantly in this market: homeowners who spent $40,000 on a kitchen renovation but can’t prove it. They paid a contractor in cash and tossed the receipts. That missing paperwork can cost you 15–20% of the untracked amount in federal tax. Keep every single receipt. The IRS doesn’t care that you “definitely did the work.” They care about documentation.
According to practitioner discussions across real estate forums, poor record-keeping on home improvements is the single most expensive and most preventable tax mistake sellers make. We’re talking $10,000–$50,000+ in unnecessary taxes on gains that should have been offset by a higher adjusted basis.
How Do You Calculate Capital Gains on a New Hampshire Home?
The statewide median single-family home price in New Hampshire hit a record $535,000 in 2025, according to the New Hampshire Association of Realtors. Prices have climbed roughly 122% over the past decade, per the NH Fiscal Policy Institute (February 2026). That kind of appreciation means more sellers are bumping up against the federal exclusion limits, especially singles.
Say you bought a home in Manchester for $280,000 in 2015 and added a $30,000 bathroom renovation. Your adjusted basis is $310,000. You sell in 2026 for $535,000.
$535,000 – $310,000 = $225,000 capital gain.
If you’re married, file jointly, and have lived in the home for at least two of the last five years, you’re well below the $500,000 exclusion. You owe $0 in federal capital gains tax. Congratulations.
But if you’re single, your exclusion caps at $250,000. You’d still squeak by in this example. Now change the numbers: buy in a coastal town like Portsmouth (where medians topped $1 million in recent years), or buy earlier when prices were lower, and that gap between your adjusted basis and sale price grows fast.
The 2026 federal long-term capital gains rates, per IRS guidance, remain at 0%, 15%, and 20%. The 0% bracket applies to taxable income up to $49,450 for single filers and $98,900 for married couples filing jointly. Most homeowners land in the 15% bracket. The top rate of 20% kicks in above $492,300 (single) or $613,700 (joint). High earners may also owe an extra 3.8% Net Investment Income Tax (NIIT) if modified AGI exceeds $200,000 single or $250,000 joint. Most national articles skip the NIIT entirely, which is a problem if you’re a dual-income household clearing $300,000.
| Filing Status | 0% Rate Threshold | 15% Rate Range | 20% Rate Threshold |
| Single | Up to $49,450 | $49,451–$492,300 | Above $492,300 |
| Married Filing Jointly | Up to $98,900 | $98,901–$613,700 | Above $613,700 |
Short-term gains (property owned one year or less) get taxed at your ordinary income rate, which can run as high as 37%. If you’re selling before the two-year mark, you lose the Section 121 exclusion entirely (unless you qualify for a partial exclusion), and if you’ve held the property under a year, you’re paying ordinary income rates on the full gain. That’s the worst-case scenario.
How Can You Reduce Federal Capital Gains Tax on Your Home?
The Section 121 exclusion. This is the one that does the heavy lifting. If you’ve owned and lived in your home as a primary residence for at least two of the past five years, you can exclude up to $250,000 in gain ($500,000 married filing jointly). You can use this exclusion once every two years. Both spouses need to meet the residency requirement, and IRS Publication 523 spells out every detail.
Didn’t live there the full two years? A partial exclusion might still apply if you moved for work, health, or certain unforeseen circumstances. This comes up more often than people expect.
- Installment sales. If you don’t need all the cash at once, you can spread payments across two or more tax years. The IRS only taxes income when you receive it. Splitting a $100,000 gain across two calendar years ($50,000 in November, $50,000 in January) drops your reported income in each year and could keep you in a lower bracket.
- Tax-loss harvesting. If you have losing investments in a brokerage account, selling them in the same year as your home sale offsets part of your gain. A $300,000 home sale profit minus $80,000 in investment losses means you’re only taxed on $220,000.
Now for the contrarian take: most articles list these strategies as if they’re all equally practical. They’re not. For the typical NH homeowner selling a primary residence worth $500,000–$600,000, the Section 121 exclusion handles the entire tax bill. Installment sales and tax-loss harvesting only matter when your gain exceeds $250,000 (single) or $500,000 (joint). If your gain falls below those thresholds, don’t pay a tax advisor hundreds of dollars to set up a strategy you don’t need.
I’m not a tax professional, and this isn’t tax advice. Talk to a CPA before making moves based on your specific numbers.
Does New Hampshire Have a State Capital Gains Tax?
No. New Hampshire has never imposed a state capital gains tax on real estate profits. The state fully eliminated its Interest & Dividends Tax in 2025, but that tax never applied to home sale gains in the first place. You can confirm this directly through the NH Department of Revenue Administration.
The one state-level cost to keep on your radar is the New Hampshire Real Estate Transfer Tax. It runs $7.50 per $1,000 of sale price for each party (1.5% total, split between buyer and seller). On a $535,000 sale, your share is about $4,013. It’s not a capital gains tax, but it still comes out of your proceeds, and I’ve seen sellers forget to budget for it.
For anyone weighing a sale in New Hampshire versus Massachusetts, the gap is real. Massachusetts taxes long-term capital gains at 5% and short-term at 9%. On a $200,000 taxable gain, that’s $10,000 in state tax you’d owe across the border but $0 in New Hampshire. If you own property in both states, an experienced team that understands your market can help you think through the timing.
When it comes to the New Hampshire capital gains tax question, the bottom line is simple. You won’t owe the state a dime on your home sale profits. Your only exposure is federal, and for most sellers who’ve lived in their home for two-plus years, the Section 121 exclusion wipes it out. The real risk isn’t the tax itself. It’s failing to track your closing costs and improvements that would have lowered the bill.
Frequently Asked Questions
Does New Hampshire charge state capital gains tax when I sell my home?
No. New Hampshire is one of nine states with no state-level capital gains tax. The state eliminated its Interest & Dividends Tax in 2025, but that tax never applied to real estate sale profits. Your only capital gains exposure is at the federal level.
What if I’ve owned my New Hampshire home for less than two years?
You’ll likely lose access to the full Section 121 exclusion, which requires you to have owned and lived in the home for at least two of the past five years. However, a partial exclusion may apply if you moved due to a job change, health issue, or unforeseen circumstance. If you’ve owned the property for one year or less, any gain is taxed at short-term rates (up to 37%).
How do I calculate my capital gain on a New Hampshire home sale?
Subtract your adjusted basis from the sale price. Your adjusted basis is the original purchase price plus documented capital improvements (renovations, additions, new systems) minus any depreciation claimed. For example, a home purchased at $280,000 with $30,000 in improvements has an adjusted basis of $310,000. Sold at $535,000, the capital gain is $225,000.
Does selling to a cash home buyer in NH change my capital gains tax?
No. The federal capital gains tax calculation is identical regardless of who buys your house. Cash buyers, traditional buyers, and investors all trigger the same tax rules. Cash offers are often 20–30% below market value, which actually reduces your gain (and your net proceeds) but doesn’t change how the IRS calculates what you owe.
Will the 3.8% Net Investment Income Tax apply to my home sale?
Only on the taxable portion of your gain (after the Section 121 exclusion) and only if your modified adjusted gross income exceeds $200,000 for single filers or $250,000 for married couples filing jointly. According to IRS guidance, roughly 43% of NIIT revenue comes from capital gains on property and investments.
What counts as a qualifying improvement to reduce my taxable gain?
Additions, full renovations, new HVAC systems, roof replacements, and similar projects that add value or extend the home’s life. Routine repairs (fixing a leaky faucet, repainting a room) don’t count. The IRS draws a clear line between improvements and maintenance, and missing receipts can cost sellers thousands.
How does New Hampshire’s Real Estate Transfer Tax affect my proceeds?
New Hampshire charges $7.50 per $1,000 of the sale price to both buyer and seller (1.5% total). On a $535,000 sale, the seller’s share is about $4,013. This is not a capital gains tax, but it reduces your net cash at closing and should be factored into your proceeds estimate.
