New Hampshire Property Tax Abatement — 2026 Guide
Deadline varies by county — check your county's appraisal district.
| Deadline | March 1, 2026 — RSA 76:16, I(b) |
|---|---|
| Lien date | |
| Abatement body | Board of Tax and Land Appeals (BTLA) |
| Primary form | Taxpayer's RSA 76:16 Abatement Application to Municipality (Form A-9, prescribed by the BTLA) |
| Portal | Varies by county |
| Filing fee | $65 |
| Can value increase | No — review body cannot increase value above current assessment |
How to Request an abatement of Your Property Tax Assessment in New Hampshire
The general abatement process in New Hampshire:
- Meet the deadline: First, file an abatement application with the municipality's selectmen or assessors by March 1 following the date of notice of tax (the date the final/annual tax bill is mailed). The municipality has until July 1 to grant or deny. If the application is denied or not acted on by July 1, appeal to the Board of Tax and Land Appeals (BTLA) OR the superior court — electing one, not both — on or before September 1 following the date of notice of tax.
- File a abatement: Contact your county's BTLA or file online through your county's online portal.
- Gather evidence: Market analysis, recent comparable sales, and documentation of property defects or errors.
- Attend your hearing: Present your evidence to the Board of Tax and Land Appeals.
- Escalate if needed: After the initial hearing, consider If denied or not acted on by July 1, appeal to the Board of Tax and Land Appeals (BTLA) (RSA 76:16-a) by September 1 — OR — petition the superior court (RSA 76:17) by September 1; the taxpayer elects one forum, not both.
Evidence and Hearing Tips
Strong evidence for a New Hampshire property tax abatement typically includes comparable sales data, a recent licensed appraisal, and documentation of any property defects or errors in your assessment record.
Hearings are conducted by the Board of Tax and Land Appeals (BTLA). Most abatements are resolved informally before a formal hearing.
General Property Tax Abatement Questions
- Is it worth appealing my property taxes?
- How do I appeal/protest my property taxes?
- When is the property tax appeal deadline in my state?
- What evidence do I need for a property tax appeal?
- Can my taxes go up if I appeal?
- Will appealing lower my home's resale value?
- How do I find comps for a property tax appeal?
- How much can I save by appealing?
- Do I need a lawyer to appeal property taxes?
- Why did my assessed value go up so much?
- What's the difference between market, assessed, and taxable value?
- What should I say at the hearing?
- How do I appeal property taxes without a lawyer?
- How much do tax protest companies charge?
- What goes in a property tax appeal letter or template?
- Can I appeal if I just bought the house?
- What if my square footage on the record is wrong?
- What happens at a property tax appeal hearing?
- I missed the deadline — what can I do now?
- What is the property tax appeal success rate?