What you will actually pay in property tax, by town.
Eight Southern NH towns, three sample home values, and the mill rate behind each bill. Type in your number, pick a town, and see the dollars right here on the page.
What is the 2025 property tax rate in Salem NH versus Windham and Derry?
In Salem NH, the 2025 certified total property tax rate is $18.16 per $1,000 of assessed value (NH Department of Revenue Administration). On a $500,000 assessment that is about $9,080 per year. Windham sits lower at $14.15 per $1,000 (about $7,075 on a $500,000 assessment), and Derry is the highest of the three at $18.99 per $1,000 (about $9,495). Full table for all eight Southern NH towns is below. Estimates only, not tax advice. Verify with a tax professional and the town assessor.
Interactive calculator
Plug in a home value. Pick a town. See the bill.
Optional: enter your current Massachusetts home value on the right to compare against a typical MA property tax bill.
$9,080
Salem, NH at 18.16 mill rate on $500,000.
Estimates only, not tax advice. Verify with a tax professional and the town assessor.
$757
18.16
Full comparison
Annual property tax, all eight towns.
Sample bills at three common price points across the Karyn Emerson service area. Rows alternate for readability. Numbers set in JetBrains Mono for quick column scanning.
- $9,080
- $13,620
- $18,160
- $7,075
- $10,613
- $14,150
- $9,495
- $14,242
- $18,990
- $7,235
- $10,853
- $14,470
- $9,545
- $14,318
- $19,090
- $6,410
- $9,615
- $12,820
- $9,545
- $14,318
- $19,090
- $7,220
- $10,830
- $14,440
| Town | Mill rate | $500K home | $750K home | $1M home |
|---|---|---|---|---|
| Salem, NH | 18.16 | $9,080 | $13,620 | $18,160 |
| Windham, NH | 14.15 | $7,075 | $10,613 | $14,150 |
| Derry, NH | 18.99 | $9,495 | $14,242 | $18,990 |
| Londonderry, NH | 14.47 | $7,235 | $10,853 | $14,470 |
| Pelham, NH | 19.09 | $9,545 | $14,318 | $19,090 |
| Atkinson, NH | 12.82 | $6,410 | $9,615 | $12,820 |
| Hampstead, NH | 19.09 | $9,545 | $14,318 | $19,090 |
| Plaistow, NH | 14.44 | $7,220 | $10,830 | $14,440 |
Mill rates shown are the 2025 certified total rates from the NH Department of Revenue Administration. Your actual bill depends on your final assessed value and any exemptions you qualify for. Estimates only, not tax advice. Verify with a tax professional and the town assessor.
Exemptions & credits
Seniors and veterans, what to ask for.
All eight towns below have adopted an elderly exemption (tiered by age, with income and asset limits) and the standard veterans’ tax credit. The figures come from each town’s own assessing page, and the assessing office is the final word. Salem, for example, takes elderly exemption applications January 1 to April 15.
$156,000
Elderly exemption off assessed value: $156,000 at 65 to 74, $234,000 at 75 to 79, $318,500 at 80 and over. Income and asset limits apply.
$750
Tuscan Village and Canobie Lake Park sit here. I-93 Exits 1 and 2.
Salem assessing source$340,000
Elderly exemption off assessed value: $340,000 at 65 to 74, $382,500 at 75 to 79, the full assessed value of the home at 80 and over. Income and asset limits apply.
$750
Lowest 2025 total rate of the three most-compared border towns (Salem, Windham, Derry).
Windham assessing source$85,000
Elderly exemption off assessed value: $85,000 at 65 to 74, $125,000 at 75 to 79, $165,000 at 80 and over. Income and asset limits apply.
$550
Highest 2025 total rate of the three most-compared border towns. Pinkerton Academy, Hood Park, and downtown Derry sit here.
Derry assessing source$205,000
Elderly exemption off assessed value: $205,000 at 65 to 74, $265,000 at 75 to 79, $350,000 at 80 and over. Income and asset limits apply.
$750
Woodmont Commons and I-93 Exits 4 and 5.
Londonderry assessing source$116,000
Elderly exemption off assessed value: $116,000 at 65 to 74, $167,000 at 75 to 79, $216,000 at 80 and over. Income and asset limits apply.
$500
Borders Massachusetts. Route 38 corridor.
Pelham assessing source$150,000
Elderly exemption off assessed value: $150,000 at 65 to 74, $225,000 at 75 to 79, $300,000 at 80 and over. Income and asset limits apply.
$750
Lowest 2025 total rate of the 8 NH towns in this calculator. Timberlane Regional schools.
Atkinson assessing source$210,000
Elderly exemption off assessed value: $210,000 at 65 to 74, $280,000 at 75 to 79, $322,000 at 80 and over. Income and asset limits apply.
$750
Big Island Pond and Wash Pond sit here.
Hampstead assessing source$110,000
Elderly exemption off assessed value: $110,000 at 65 to 74, $150,000 at 75 to 79, $190,000 at 80 and over. Income and asset limits apply.
$750
Route 125 corridor and Timberlane Regional schools, next to I-495 in Haverhill.
Plaistow assessing sourceExemption amounts read from each town's assessing page, verified October 2026. Towns change them by town meeting vote, so confirm current figures with the assessing office. Estimates only, not tax advice. Verify with a tax professional and the town assessor.
Methodology
How these numbers are calculated.
Annual property tax is computed as home value divided by 1,000, multiplied by the town mill rate. For a $500,000 home in a town with a 20.00 mill rate, the estimated annual bill is $10,000. Monthly escrow is that number divided by twelve.
Mill rates update annually after the NH Department of Revenue Administration certifies each town’s rate in the fall. Data on this page reflects the 2025 certified rates. Ask me for a live pull before you offer on a home.
This calculator is a planning tool, not a commitment. Final property tax depends on your final assessed value, any exemptions you qualify for, and the next town meeting warrant.
One more step
Before you offer, let us run the real numbers.
I will pull the current assessment, check your eligible exemptions, and walk you through the full annual cost of ownership. Thirty minutes, real answers.