Property tax in Belknap County, New Hampshire

By Brent Chudoba, editor Updated September 23, 2026

The median property tax bill in Belknap County, New Hampshire is $4,924 a year, which is about 1.31% of the county's median home value of $374,900. That effective rate is lower than the typical New Hampshire county (1.79%) and higher than the national median (0.81%). These are American Community Survey 5-year estimates (2024); your own bill depends on your home's assessed value and any exemptions.

Estimate the property tax on a home in Belknap County

Enter a home's market value for a ballpark at Belknap County's average effective rate of 1.31% (Census). The real bill depends on the home's assessed value, the millage where it sits and any exemptions.

Home market value

Estimated property tax: $4,911 / year

Property tax in Belknap County at a glance

Belknap County, New Hampshire property tax (Census ACS, reviewed September 23, 2026)
Measure	Value
Median annual property tax	$4,924
Median home value	$374,900
Effective tax rate	1.31%
Typical New Hampshire county rate	1.79%
National median county rate	0.81%

Effective rate = median real estate taxes paid divided by median home value. Source: U.S. Census Bureau, American Community Survey 5-year estimates.

How does Belknap County compare in New Hampshire?

Among New Hampshire's 10 counties, Belknap County has the 9th highest effective property-tax rate: 8 rank higher and 1 rank lower. That places it among the least taxed counties in the state. Nationally, it ranks 583rd of 3135 US counties by effective rate. See every New Hampshire county ranked.

How much do homeowners in Belknap County actually pay?

The median is only the middle bill. Across Belknap County's 21,097 owner-occupied homes, 80.2% pay $3,000 or more a year in property tax, 87.8% pay at least $2,000, and 4.3% pay under $800. Another 1.8% report paying no property tax at all, which usually means an exemption covers the whole bill.

Annual property tax paid by Belknap County homeowners (Census ACS 2020-2024)
Annual bill	Homes	Share
Under $800	908	4.3%
$800 to $1,499	531	2.5%
$1,500 to $1,999	756	3.6%
$2,000 to $2,999	1,612	7.6%
$3,000 or more	16,917	80.2%
No property tax paid	373	1.8%

Owners with a mortgage pay a median of $5,033 and owners without one pay $4,734. That is within 10% either way, so in Belknap County paying off the house does not go with a noticeably different bill. Census table B25103.

How does the Belknap County property tax bill compare with local incomes?

The median property tax bill of $4,924 is about 4.6% of the median income of Belknap County homeowner households, $106,397 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 80.1% of Belknap County's occupied homes are lived in by their owners; renters pay property tax too, just folded into rent.

Have property taxes gone up in Belknap County?

Yes. The median bill went from $4,209 in 2015-2019 to $4,924 in 2020-2024, a 17% rise. Over the same span the median home value moved 65.5%, from $226,500 to $374,900. Bills rose more slowly than values, which is what assessment caps and falling millage rates do: the county is taxing a smaller share of each home's worth.

Two Census ACS 5-year periods with no survey years in common, in each period's own dollars. A change counts only if it exceeds the combined 90% margin of error.

Property tax in counties next to Belknap County

Belknap County borders 4 counties.

Belknap County and its neighbors, highest effective rate first (Census ACS 2020-2024)
County	Effective rate	Median bill	Median home value
Merrimack County, NH	1.85%	$6,783	$367,600
Strafford County, NH	1.85%	$6,708	$362,800
Grafton County, NH	1.72%	$5,925	$344,500
Belknap County, NH (this county)	1.31%	$4,924	$374,900
Carroll County, NH	0.99%	$3,848	$388,900

How is a home assessed in Belknap County?

New Hampshire sets the assessment rules and Belknap County applies them. How New Hampshire assesses and reappraises homes.

Is there a homestead exemption in Belknap County?

No. New Hampshire has no across-the-board homestead exemption; its exemptions target specific groups, and most are local options your town must vote to offer. That is the New Hampshire rule, and it applies in Belknap County. New Hampshire's exemptions and relief programs in full.

When are property taxes due in Belknap County?

There is no single statewide due date, because the billing schedule is a local choice. Under the default in state law a town sends one annual bill and interest starts December 1. Most municipalities have instead voted to bill twice a year, with a July 1 payment computed from half the prior year's rate and the balance due December 1. A smaller group running a July to June fiscal year bills quarterly, due July 1, October 1, January 2 and March 31, so check your own tax collector.

That is the New Hampshire rule. Belknap County issues and collects the bill, so the dates printed on your statement are the ones that bind you.

How to appeal your Belknap County property assessment

You contest the assessed value with the your local selectmen or assessors, then either the Board of Tax and Land Appeals or the county superior court. The filing deadline is typically March 1 following the notice of tax to apply to the town, then September 1 to appeal further. That is the New Hampshire rule; Belknap County sets the exact dates and forms. The New Hampshire appeal process step by step.

New Hampshire rules from primary state sources, reviewed September 7, 2026; sources on the New Hampshire page.

Work out your own numbers

Sources

Median real estate taxes paid and median home value for Belknap County, New Hampshire: U.S. Census Bureau, American Community Survey 5-year estimates (2020-2024), tables B25103, B25077, B25102, B25119 and B25003; the five-year comparison uses the 2015-2019 estimates. Neighboring counties: Census county adjacency file.