Assessment Ratio
100%
Abatement Deadline
March 1, 2026 (or date specified on tax bill)
Official Form
Abatement Application
Risk of Increase
No
How Assessment Works in New Hampshire
New Hampshire assesses property at 100% of market value. However, actual assessment ratios vary by municipality based on when the last revaluation occurred. The state publishes equalization ratios for each municipality.
How to File in New Hampshire
File an abatement application with your municipality by March 1 following the notice of tax (or the date specified on the tax bill). Forms are available at the town assessor's office.
Step-by-Step
New Hampshire Abatement Process
Receive your property tax bill showing your assessed value.
File an abatement application with the municipality by March 1.
The selectmen or assessors review your application and issue a decision.
If denied, appeal to the Board of Tax and Land Appeals (BTLA) or Superior Court within 120 days.
Present comparable sales evidence at the hearing.
FAQ
New Hampshire Property Tax Abatement Questions
Can my New Hampshire assessment increase if I file for abatement?
No. Filing an abatement application cannot result in your assessment being increased. Your assessment can only stay the same or go down.
What is the equalization ratio?
The equalization ratio is the relationship between a municipality's assessments and market value. If the ratio is 80%, it means assessments are at approximately 80% of market value. This ratio is used to determine if your assessment is proportionally fair.
Does New Hampshire have a homestead exemption?
New Hampshire does not have a traditional homestead exemption. However, some municipalities offer elderly exemptions, veteran exemptions, and disability exemptions. Check with your town assessor.