Portsmouth, Rockingham County, New Hampshire Property Taxes

Name: Property Tax Bills Across Portsmouth, Rockingham County, New Hampshire
Creator: Ownwell
License: https://creativecommons.org/licenses/by-nc/4.0/

Median Portsmouth, NH effective property tax rate: 1.52%, significantly higher than the national median of 1.02%, but lower than the New Hampshire state median of 1.91%.
Median Portsmouth, NH home value: $437,500
Median annual Portsmouth, NH tax bill: $6,641, $4,241 higher than the national median property tax bill of $2,400.

How are property taxes in Rockingham calculated?

Property taxes in Portsmouth, NH 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 Portsmouth’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Portsmouth, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Portsmouth, Rockingham County, New Hampshire Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.52%

Estimate Property Tax Bill

$6,650

$6,171

Ownwell’s Portsmouth Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Portsmouth with just two data points. By entering your property's estimated assessed value, our calculator applies Portsmouth’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Rockingham. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Portsmouth, Rockingham County, New Hampshire

Local government entities are responsible for setting tax rates, which can vary widely within a state. This is 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 Portsmouth’s effective property tax rate to other cities in New Hampshire and the median property tax rates in New Hampshire and the U.S.

Portsmouth, located in Rockingham County, has a median property tax rate of 1.52%. This rate is higher than the national median property tax rate of 1.02%. Despite the higher rate, the property tax bill reflects the services and amenities offered within the region. Comparing Portsmouth to other areas within New Hampshire, it shares the same tax rate, indicating a uniform approach within its jurisdiction. Understanding these rates can help property owners make informed decisions about their investments and financial planning.

Property Tax Rates Across Portsmouth, Rockingham County, New Hampshire

Source: Ownwell

0.50%

1.72%

2.95%

Our median effective property tax rate (tax bill ÷ 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 Portsmouth Tax Rate

1.52%

Median Effective Rockingham County Tax Rate

1.90%

Median Effective New Hampshire Tax Rate

1.91%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Portsmouth, Rockingham County, New Hampshire

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
03801	1.52%	1.52%	1.52%	1.52%	1.52%
03804	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Assessment Values Across Portsmouth, Rockingham County, New Hampshire

When examining property taxes in Portsmouth, NH, 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 Rockingham 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 Rockingham County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of May. 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 Portsmouth. For example, the median home price in Portsmouth is $437,500, with tax bills ranging significantly across the county. 03801 has the highest median home price at $437,500.

Property Tax Assessment Values Across Portsmouth, Rockingham County, New Hampshire

Source: Ownwell

$275,100

$1,110,250

$1,945,400

Median Portsmouth Market Value

$437,500

Median Rockingham County Market Value

$373,900

Median New Hampshire Market Value

$299,765

Median United States Market Value

$235,294

Property Tax Assessment Values Across Portsmouth, Rockingham County, New Hampshire

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
03801	$218,390	$312,825	$437,500	$632,300	$834,260
03804	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Bills Across Portsmouth, Rockingham County, New Hampshire

In Portsmouth, located in Rockingham County, NH, property tax bills are determined by multiplying the assessed value of a home by the local tax rate. The assessed value is typically a percentage of the market value, which can fluctuate based on real estate trends and property improvements. Portsmouth homeowners face a median property tax bill of $6,640, considerably higher than the national median of $2,400. Factors such as location within the city and home size can significantly influence the tax bill. For instance, the tax bill at the 25th percentile is $4,758, while it climbs to $9,577 at the 75th percentile, and reaches $12,641 at the 90th percentile. These varying amounts underscore the impact of property characteristics on tax obligations. Ownwell assists homeowners in Portsmouth by identifying potential savings through property tax appeals and exemptions. By analyzing individual property assessments and market conditions, Ownwell ensures homeowners are not overpaying, offering substantial relief in a high-tax environment.

Property Tax Bills Across Portsmouth, Rockingham County, New Hampshire

Source: Ownwell

$4,706

$9,143

$13,579

Median Portsmouth Tax Bill

$6,641

Median Rockingham County Tax Bill

$6,989

Median New Hampshire Tax Bill

$5,895

Median United States Tax Bill

$2,400

Property Tax Bills Across Portsmouth, Rockingham County, New Hampshire

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
03801	$3,293	$4,758	$6,640	$9,578	$12,641
03804	N/A	N/A	N/A	N/A	N/A

Source: Ownwell