Hillsborough Property Tax: Rates & Appeals (2026)

If you own a home in Hillsborough County, New Hampshire, your 2026 assessment appeal starts locally: file a written property tax abatement with your city or town assessing officials after the final 2026 tax bill and no later than March 1, 2027. There is no county assessor for this—Manchester, Nashua, Bedford, Merrimack, Amherst, Goffstown and the other Hillsborough County municipalities handle the first step; only after a denial or no July 1 response do you go to the New Hampshire Board of Tax and Land Appeals (BTLA) or Hillsborough County Superior Court.

How assessments work in Hillsborough County

Hillsborough County includes Manchester, Nashua and 29 towns, but New Hampshire property assessment is municipal. The county appears on your tax bill as one component of the rate; it does not set your individual home value or run the first appeal.

The assessment date is April 1 of the tax year. For 2026 taxes, the value being tested is your property’s fair market value as of April 1, 2026. The tax year runs April 1 through March 31, and the tax rate is normally set in the fall after municipal, school, state education and county appropriations are known. Manchester explains the basic rate formula plainly: appropriations minus non-property-tax revenue, divided by assessed value, equals the tax rate.

New Hampshire also requires municipalities to reappraise all real estate at least as often as every fifth year. Separately, the Department of Revenue Administration reviews municipal assessing records over a five-year assessment-review cycle; the current cycle is 2023–2027. That matters because a big notice after a revaluation is not automatically an overassessment. In a revaluation year, many assessments rise while the tax rate may fall. Your appeal is strongest when your value is wrong relative to market value and the town’s equalization ratio, not just because the bill went up.

For a quick benchmark, Manchester’s Assessors page lists the 2025 tax rate at $20.24 per $1,000 of assessed value, broken down as municipal $10.04, county $1.36, local education $7.33 and state education $1.51; it also says the 2026 ratio had not yet been established by DRA. Nashua’s 2025 rate history lists a lower total rate of $16.83 per $1,000. Your actual rate depends on your municipality and any village/special district.

Whether you should appeal

Appeal if you can prove one of these with documents:

• The property record card is wrong: finished area, condition, bathrooms, outbuildings, basement finish, acreage, view, utilities, topography or damage.
• Comparable sales near April 1, 2026 support a lower market value.
• Your assessment is disproportionate after applying your municipality’s equalization ratio. The BTLA’s abatement instructions explain the basic test as: assessment ÷ equalization ratio = equalized assessment; if that exceeds market value, you may have a case.
• A building was damaged during the tax year and you qualify for a prorated damaged-building assessment.

Do not appeal only because your escrow rose, the tax rate changed, or neighbors pay less in dollars. The legal question is whether your assessment caused you to pay more than your proportional share.

Worked example using a real Hillsborough County rate: suppose a Manchester house is assessed at $525,000, but three comparable sales and a corrected property card support $485,000. Difference: $40,000. At Manchester’s 2025 rate of $20.24 per $1,000, estimated annual tax savings would be $40,000 ÷ 1,000 × $20.24 = $809.60. If the town/city applies a different 2026 rate when bills are finalized, use that rate instead.

Step-by-step how to file

1. Wait for the final bill. In most Hillsborough County municipalities, the first bill is estimated and the second/final bill arrives around late fall or December. The abatement window opens only after the final tax bill that establishes your final liability.

2. Get the right form. Use “Taxpayer’s RSA 76:16 Abatement Application to Municipality”. Official form URL: https://www.btla.nh.gov/sites/g/files/ehbemt601/files/inline-documents/sonh/abatement.pdf. Manchester and Nashua also post local abatement forms/instructions on their assessing pages.

3. File with your municipality—not Hillsborough County. Mail or hand-deliver it to your city/town assessing office or board of selectmen/assessors. Manchester’s filing authority is the City of Manchester Board of Assessors, One City Hall Plaza, West Wing, Manchester, NH 03101. Nashua’s Assessing Department is at 229 Main Street, Nashua, NH 03060, with mailing address PO Box 2019, Nashua, NH 03061. For any other Hillsborough County town, use the address on that town’s assessor/select board page or tax bill.

4. Know the filing methods. There is no statewide or county portal for local assessment abatements, and Granite Tax Connect is not the place to file a municipal property assessment appeal. Manchester specifically says abatement applications cannot be filed online because an original signature is required. Practical safe methods are in-person delivery, USPS mail with a postmark by the deadline, or receipted overnight delivery. Email only if your municipality expressly confirms it will accept a signed abatement that way.

5. Attach evidence. Include your final tax bill, property record card corrections, photos, contractor estimates for condition issues, a short comparable-sales grid, and your opinion of market value. A blank statement like “taxes are too high” is not enough.

6. Fee. The local municipal abatement filing is generally free; Manchester states there is no filing fee. A later BTLA appeal carries a $65 nonrefundable filing fee for RSA 76:16-a property tax appeals.

What happens after

Your local appeal is reviewed by the municipal assessing officials—called the Board of Assessors in Manchester and Nashua, or the select board/assessors in many towns. They may correct data, ask for an inspection, compare sales, offer a settlement, approve a partial abatement or deny the application.

The municipality has until July 1, 2027 to grant or deny a timely 2026 abatement. If no written decision is sent by July 1, the application is treated as denied. If you are dissatisfied, you may file one further appeal—either with the New Hampshire Board of Tax and Land Appeals under RSA 76:16-a or in Hillsborough County Superior Court under RSA 76:17, but not both.

For the BTLA, use “Taxpayer’s RSA 76:16-a Property Tax Appeal to Board of Tax and Land Appeals.” File by mail, hand delivery or receipted overnight delivery with the $65 fee payable to “Treasurer, State of New Hampshire” at: Board of Tax and Land Appeals, Governor Hugh J. Gallen State Office Park, 107 Pleasant Street, Johnson Hall, Concord, NH 03301. BTLA rules require mediation first: after a timely appeal, the Board orders the parties to mediate and file a mediation report, generally within 120 days. The meeting can be in person, by phone or electronically. If you plan to rely on a formal appraisal, provide it before mediation or it can be excluded later.

If mediation does not settle the case, the BTLA schedules a hearing. Expect a structured but less formal court-like proceeding: you present evidence first because you have the burden of proof; the municipality explains its assessment; exhibits and comparable-property cards must be exchanged in advance; oral proceedings are recorded; and the Board issues a written decision after the hearing. If you cannot attend and get permission, the Board can decide on the written record and the evidence presented by the municipality.

Local tips

Hillsborough County homeowners should start by pulling the property record card from their city/town database. Nashua specifically tells taxpayers to review the property record card and data before filing because data errors contribute to inaccurate valuations. Manchester’s online data is convenient, but the official records are kept in the Board of Assessors’ office.

Check exemptions at the same time as your assessment. New Hampshire does not have a broad automatic homestead exemption like some states, but Hillsborough County municipalities offer valuable credits/exemptions depending on local adoption and qualifications. Manchester lists elderly exemptions of $156,000, $210,000 or $280,000 off assessed value by age band, a $500 veterans credit, $2,000 disabled-veterans credit, $2,000 surviving-spouse credit, blind and disabled exemptions, and a 100% solar-equipment exemption. Nashua lists elderly, blind, disabled, veterans/widow, solar, disability-improvement and tax deferral programs, with an April 15 exemption/credit deadline. State Form PA-29, Permanent Application for Property Tax Credit/Exemptions, is the common form; PA-30 is for elderly/disabled tax deferral, and PA-33 is used for life estates/trusts.

Finally, do the math before paying for an appraisal. At a $20 tax rate, every $10,000 of assessment reduction saves about $200 per year. If your realistic overassessment is only $15,000, a formal appraisal may cost more than the likely refund. If the error is large, the property is unusual, or you expect to continue to be overassessed in future years, an appraisal or broker-supported sales analysis can be worth it.

When Are Property Taxes Due in Hillsborough County?

New Hampshire municipalities that use semi-annual property-tax billing collect a partial payment due July 1 and the remainder due December 1; if bills are mailed late, the interest/delinquency timing may shift to 30 days after mailing. Hillsborough County homeowners should confirm the exact due date printed on the bill from their city/town tax collector. Semi-annual collection is authorized for adopting New Hampshire towns and cities; no separate Hillsborough County-wide installment plan was confirmed on an official source.

This is not the same as the assessment appeal deadline above. The appeal deadline is your window to contest your assessed value; the payment due date is when the resulting tax bill must be paid. Missing one does not affect the other, but missing either has real consequences — one forfeits your right to appeal for the year, the other can trigger penalties and interest.

Source: https://www.revenue.nh.gov/sites/g/files/ehbemt736/files/documents/assessing-reference-manual.pdf

Property Tax Exemptions in Hillsborough County

• Elderly exemption — Homeowners age 65 or older on or before April 1 who meet New Hampshire ownership/residency rules and the income/asset limits adopted by their municipality.. Varies by municipality and age category; the NH Department of Revenue Administration publishes Hillsborough County municipality-by-municipality amounts. Yes, file Form PA-29 with the municipality. Apply by April 15 of the tax year.. (Source: https://www.revenue.nh.gov/taxes-glance/tax-credit-programs/exemptions-and-veterans-tax-credits)
• Blind exemption — Blind property owners meeting New Hampshire statutory and municipal qualification rules.. Varies by municipality; the NH Department of Revenue Administration publishes Hillsborough County municipality-by-municipality amounts. Yes, file Form PA-29 with the municipality. Apply by April 15 of the tax year.. (Source: https://www.revenue.nh.gov/sites/g/files/ehbemt736/files/documents/2024-annual-report.pdf)
• Veterans' property tax credits — Qualifying veterans and certain surviving spouses under RSA 72, subject to residency, service, ownership, and municipal adoption rules for optional credits.. Standard veterans' credit is $50 unless the municipality adopts an optional $51-$750 amount; all-veterans credit uses the municipality's standard/optional amount if adopted; combat-service credit may be $50-$500 if adopted; surviving-spouse credit is $700 unless optional $701-$2,000 is adopted; service-connected total-disability credit is $700 unless optional $701-$4,000 is adopted. Yes, file Form PA-29 with the municipality. Apply by April 15 of the tax year.. (Source: https://www.revenue.nh.gov/sites/g/files/ehbemt736/files/documents/2024-annual-report.pdf)
• Certain disabled veterans' exemption — Certain totally and permanently disabled veterans, double amputees, paraplegic veterans, blind veterans, or qualifying surviving spouses meeting RSA 72:36-a requirements.. 100% exemption on the qualifying homestead when statutory requirements are met. Yes, file Form PA-29 with the municipality. Apply by April 15 of the tax year.. (Source: https://www.revenue.nh.gov/sites/g/files/ehbemt736/files/inline-documents/sonh/municipal-property/statutory-overview-of-veterans-tax-credits-exemption.pdf)
• Disabled exemption — Disabled homeowners who meet New Hampshire requirements and whose municipality has adopted the exemption.. Varies by municipality; the NH Department of Revenue Administration publishes adopted amounts and income/asset limits by municipality. Yes, file Form PA-29 with the municipality. Apply by April 15 of the tax year.. (Source: https://www.revenue.nh.gov/taxes-glance/tax-credit-programs/exemptions-and-veterans-tax-credits)
• Deaf or severely hearing impaired exemption — Deaf or severely hearing impaired homeowners who meet New Hampshire requirements and whose municipality has adopted the exemption.. Varies by municipality; the NH Department of Revenue Administration publishes adopted amounts and income/asset limits by municipality. Yes, file Form PA-29 with the municipality. Apply by April 15 of the tax year.. (Source: https://www.revenue.nh.gov/taxes-glance/tax-credit-programs/exemptions-and-veterans-tax-credits姝.)

How to Look Up Your Property Record in Hillsborough County

You can look up your property's official record at https://www.nhdeeds.org/hillsborough-county-index/. The Hillsborough County Registry of Deeds AVA public search provides recorded real-estate document index information such as grantor/grantee names, book and page, property location, and recording date; it is not a municipal assessed-value or tax-bill lookup.