New Hampshire property tax appeals, 2027
In New Hampshire, you appeal a property assessment to the Selectmen or Assessing Officials, and the deadline is March 1 after the final tax bill. Each county below lists its own date, how to file and who hears the appeal. Sale prices are not public record in New Hampshire, so evidence leans on the county’s own data, listings and independent appraisals.
Data as of 20 Oct 2026 · 10 counties, state and county recordsHow appeals work in New Hampshire
| Rule | What applies |
|---|---|
| What you argue | Market value as of April 1 of the tax year (RSA 74:1); uniformity is also recognized (RSA 76:16; N.H. Admin. R. Tax 203.09) |
| How homes are assessed | Set locally and published by NH Department of Revenue Administration (equalization and median ratios per municipality, published each spring) |
| Deadline | Written abatement application to the municipality by March 1 following the notice of tax (RSA 76:16); the town decides by July 1, then BTLA or superior court by September 1. |
| First appeal to | Selectmen or Assessing Officials (abatement application) |
| What the notice shows | Often no market value. Mails: No statutory assessment notice; deadlines run from the final tax bill (RSA 76:1-a) |
| Sale prices public | No |
| Statutes | Grounds: RSA 76:16; RSA 75:1. Filing: RSA 76:16, 76:16-a. Assessor’s evidence: N.H. Admin. R. Tax 201.20, 201.33 (BTLA exchange of prehearing submissions and comparables). |
More: how to read your notice · what a ratio is · evidence that works · deadlines in every state
Every New Hampshire county
| County | Deadline | Appeal rate | Lowered | Coverage |
|---|---|---|---|---|
| Hillsborough County | Not yet published | — | — | Scan from recent sales |
| Rockingham County | Not yet published | — | — | Scan from recent sales |
| Merrimack County | Not yet published | — | — | Scan from recent sales |
| Strafford County | Not yet published | — | — | Scan from recent sales |
| Grafton County | Not yet published | — | — | Scan from recent sales |
| Cheshire County | Not yet published | — | — | Scan from recent sales |
| Belknap County | Not yet published | — | — | Scan from recent sales |
| Carroll County | Not yet published | — | — | Scan from recent sales |
| Sullivan County | Not yet published | — | — | Scan from recent sales |
| Coos County | Not yet published | — | — | Scan from recent sales |
New Hampshire questions
When is the property tax appeal deadline in New Hampshire?
Written abatement application to the municipality by March 1 following the notice of tax (RSA 76:16); the town decides by July 1, then BTLA or superior court by September 1. Counties publish the exact date, and most notices print it.
Who hears a property tax appeal in New Hampshire?
The Selectmen or Assessing Officials (abatement application) hears the first appeal (RSA 76:16, 76:16-a).
How is a home assessed in New Hampshire?
At set locally and published by NH Department of Revenue Administration (equalization and median ratios per municipality, published each spring), valued as of April 1 of the tax year (RSA 74:1).
What does a New Hampshire assessment notice show?
Often only an assessed value. Notices mail: No statutory assessment notice; deadlines run from the final tax bill (RSA 76:1-a).
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- RSA 75:1 (market value)
- RSA 74:1 (April 1 inventory date)
- RSA 76:16 (abatement by selectmen or assessors)
- RSA 76:16-a (appeal to BTLA)
- RSA 76:1-a (notice of tax)
- RSA 21-J:14 (DRA records confidential)
- N.H. Admin. R. Tax 100–500 (BTLA rules, Tax 203.09)
- BTLA, property tax appeals
- DRA 2025 median ratio report
- Each county’s own appeal instructions and notices, read on the date shown on each county page.
- U.S. Census Bureau, county population estimates (2024).