Hillsborough County Property Tax Appeal — New Hampshire
Hillsborough County is the most populous county in New Hampshire, home to the state's two largest cities. The county encompasses a diverse mix of urban centers, suburban communities, and rural towns.
Notable cities: Manchester, Nashua
Median Home
$269,900
Tax Rate
1.79%
Annual Tax
$4,839
Population
over 400,000
2026 Appeal Deadline: March 1 following receipt of final tax bill, or September 1 for BTLA appeal
If Notice of Tax is on or before Dec. 31, deadline is March 1. If Notice of Tax is after Dec. 31, deadline is 2 months after Notice of Tax. For BTLA appeals, deadline is September 1 when Notice of Tax is on or before Dec. 31.

How Hillsborough County Assesses Property
Assessed by: Local Town/City Assessor's Office
Assessment cycle: annual
Notices typically mailed: Spring (typically mid-April)
In Hillsborough County, properties are assessed at 100% of market value. Assessment notices showing both market and assessed values are typically mailed by mid-April each year.
The Appeal Process
Appeals are heard by the Board of Tax and Land Appeals. Initial review by local assessor, followed by informal hearing. If appealed to BTLA, formal hearing with opportunity to present evidence.
Step 1: File appeal with local town/city assessor by March 1 deadline
Step 2: Municipality reviews appeal and issues decision by July 1
Step 3: If denied, appeal to Board of Tax and Land Appeals by September 1
Step 4: BTLA hearing scheduled and decision rendered
Step 5: If still unsatisfied, appeal to Superior Court
Required form: Property tax appeal form or letter of disagreement
Filing Methods
Evidence to Bring
Hillsborough County Assessor Contact
Hillsborough County Office (Note: Each town/city has its own assessor)
Phone: (603) 627-5600
Address: 329 Mast Road, Suite 120, Goffstown, NH 03045
Website: https://hcnh.org/
Hours: Monday to Friday 8:30 AM - 4:30 PM
Tax Exemptions in Hillsborough County
Elderly Exemption
$34,500 (age 65-74), $51,750 (age 75-79), $63,500 (age 80+)Reduces assessed value for qualifying seniors
Veterans' Tax Credit
$750Annual tax credit for qualifying veterans
Blind Exemption
$15,000Reduces assessed value for legally blind residents
Solar Energy Systems Exemption
Full value of systemExempts value of solar energy systems from assessment
Disabled Exemption
Varies by municipalityProperty tax relief for disabled residents
Official Resources
New Hampshire Department of Revenue Administration - Property Tax →
Official state resource for property tax information, forms, and assessment procedures in New Hampshire.
New Hampshire Property Tax Assessment Database →
Statewide property search portal allowing lookup of property assessments and tax information for all New Hampshire municipalities.
New Hampshire RSA 75 - Property Tax Statutes →
Official state statutes governing property taxation, assessment procedures, and taxpayer rights in New Hampshire.
Hillsborough County Appeal Statistics
% Who Appeal
25%
Check Your Hillsborough County Assessment
Enter your address to see if your Hillsborough County property is overassessed.
Frequently Asked Questions
What is the deadline to appeal my property taxes in Hillsborough County?
How do I qualify for the elderly exemption in Hillsborough County towns?
Can I appeal my Hillsborough County property tax assessment online?
What happens at a Board of Tax and Land Appeals hearing in New Hampshire?
How much is the veterans' tax credit worth in Hillsborough County municipalities?
When are property tax assessment notices mailed in Hillsborough County?
Why are Hillsborough County property taxes higher than the national average?
For state-wide appeal information including New Hampshire's assessment ratio and deadlines, see our New Hampshire Property Tax Appeal Guide →
Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →
Sources: http://www.tax-rates.org/new_hampshire/hillsborough_county_property_tax | https://hillsboroughnh.org/town-clerk-tax-collector/ | https://www.btla.nh.gov/jurisdiction/property-tax | https://hcnh.org/ | https://www.ownwell.com/trends/new-hampshire/hillsborough-county
Last verified: 2026-02-09