Grafton, Grafton County, New Hampshire Property Taxes
Property Taxes in Grafton, New Hampshire
Median Grafton, New Hampshire effective property tax rate: 3.06%, significantly higher than the national median of 1.02%, and higher than the New Hampshire state median of 1.82%.
Median Grafton, New Hampshire home value: $151,200
Median annual Grafton, New Hampshire tax bill: $4,627, $2,227 higher than the national median property tax bill of $2,400.
How are property taxes in Grafton calculated?
Property taxes in Grafton, New Hampshire are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Grafton’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Grafton, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Grafton, Grafton County, New Hampshire Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
3.06%
Estimate Property Tax Bill
$4,627
$4,293
How Does the Grafton Property Tax Calculator Work?
Use this Grafton property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Grafton's median effective tax rate of 3.06% — based on actual property records in Grafton County — to generate your estimate.
Enter your property's estimated assessed value — the figure used to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Grafton's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Grafton: rates range from 3.06% in 03240 to 3.06% in 03240, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Grafton.
About Grafton Property Taxes
About Property Taxes in Grafton, Grafton, NH
Grafton’s median effective property tax rate of 3.06% is higher than the New Hampshire state median of 1.82% and higher than the national median of 1.02%. This rate reflects the Grafton County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Grafton. Homeowners in the 03240 ZIP code carry a median effective rate of 3.06%, while those in the lowest ZIP code pay 3.06%. This spread reflects how school district boundaries and local assessment districts are drawn across Grafton County. Understanding which part of Grafton you live in can make a meaningful difference to your annual tax bill.
Grafton homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the September 1, 2026 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Grafton, Grafton County, New Hampshire
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Grafton’s effective property tax rate to other cities in New Hampshire and the median property tax rates in New Hampshire and the U.S.
Our median effective property tax rate (tax bill Ă· assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Grafton Tax Rate
3.06%
Our median effective property tax rate (tax bill Ă· assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Grafton County Tax Rate
1.93%
Median Effective New Hampshire Tax Rate
1.82%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Grafton, Grafton County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03240 | 3.06% | 3.06% | 3.06% | 3.06% | 3.06% |
Source: Ownwell
Property Tax Assessment Values Across Grafton, Grafton County, New Hampshire
When examining property taxes in Grafton, New Hampshire, understanding the distinction between market value and assessed value is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Grafton County appraisal district estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Grafton County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Grafton.
For example, the median home price in Grafton is $151,200, with tax bills ranging significantly across the county. 03240 has the highest median home price at $151,200.
Property Tax Assessment Values Across Grafton, Grafton County, New Hampshire
Source: Ownwell
$95,550
$384,725
$673,900
Median Grafton Market Value
$151,200
Median Grafton County Market Value
$281,200
Median New Hampshire Market Value
$360,500
Median United States Market Value
$235,294
Property Tax Assessment Values Across Grafton, Grafton County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03240 | $63,544 | $98,275 | $151,200 | $197,551 | $252,350 |
Source: Ownwell
Property Tax Bills Across Grafton, Grafton County, New Hampshire
How are property tax bills calculated in Grafton?
Property tax bills in Grafton are based on the assessed value of a home and the local tax rate set by taxing authorities. When a property’s market value changes, the assessed value can change too, which affects the final bill. For a home with a median home price of $151,200, the tax bill reflects how local rates are applied to that value.
What factors are considered? Homeowners’ bills depend on the property’s assessed value, local budgets, and any exemptions or adjustments that may apply. In Grafton, the 25th percentile tax bill is $3,007, while the 75th percentile is $6,045 and the 90th percentile is $7,722. The median tax bill is $4,627, which is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%.
How does this affect homeowners? Higher assessed values and local tax rates can lead to larger annual bills, making property taxes a major housing cost for many homeowners.
Median Grafton Tax Bill
$4,627
Median Grafton County Tax Bill
$5,056
Median New Hampshire Tax Bill
$6,530
Median United States Tax Bill
$2,400
Property Tax Bills Across Grafton, Grafton County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03240 | $1,944 | $3,007 | $4,627 | $6,045 | $7,722 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | March 1 |
Links | |
|---|---|
| Grafton Tax Assessor | |
| Website | www.vgsi.com |