What is the property tax rate in Strafford County?

The combined effective property tax rate in Strafford County, New Hampshire is approximately 1.95%.

Strafford County Property Tax Calculator (2026) — New Hampshire Property Tax Almanac

Property Tax in Strafford County, 2026

A calculator and field guide for Dover-area homeowners — and for anyone considering a move to Strafford County — including New Hampshire's 100% assessment ratio (full market value statewide), the celebrated "NH advantage" (no state income tax + no state sales tax — property tax does virtually all state-and-local revenue work), the 4-component total mill rate (municipal + county + local school + Statewide Education Property Tax / SWEPT $1.030/$1,000 for 2026, RSA 76:3/76:8), the dramatic town-by-town variation (New Castle ~$5.73/$1,000 to "doom loop" rural towns >$35/$1,000), the town-option Elderly Exemption (RSA 72:39-a/b, age-tier AV reductions), and town-variable Veteran Tax Credits (RSA 72:28 + RSA 72:35 — DIRECT tax credits, not AV reductions, $700-$5,000 range for 100% disabled). New Hampshire effective rates are top 5 highest in the US (~1.93% statewide median).

Strafford County is part of New Hampshire's distinctive 4-component property tax system. NH has NO state income tax + NO state sales tax — property tax does virtually all state-and-local revenue work. The total mill rate sums 4 components: municipal + county + local school + Statewide Education Property Tax (SWEPT, $1.030/$1,000 for 2026). Real property is assessed at 100% of FMV. Strafford's representative effective rate is ~1.95%. NH ranks top 5 US for effective rate (~1.93% statewide median).

How the bill is built

Each town's assessor determines FMV on a 5-year reassessment cycle (RSA 75:8-a). NH assesses at 100% of FMV. Tax = FMV × total mill rate / 1,000. Strafford's representative total mill rate is ~24 mills (~2.40% effective). NH bills issue in 2 halves: first bill (~July) is estimated at half of prior-year tax; second bill (~December) "trues up" at the final rate set by the DRA. Most towns due July 1 + December 1.

Mill rate variation across NH is dramatic. Range from ~$5.73/$1,000 (New Castle) to ~$38/$1,000 (Berlin, Claremont) — a 6-7x spread. Affluent seacoast and lakefront towns with substantial seasonal/commercial tax base keep mill rates low; post-industrial and rural towns with declining commercial base have the highest. For relocation buyers, mill rate matters far more than home value.

NH veteran credits are town-variable. NH provides DIRECT TAX CREDITS (subtracted from the bill), not AV reductions. Standard Veterans' Credit (RSA 72:28) $50-$750 town-set; All Veterans' Credit (72:28-b) similar; Disabled Service-Connected Credit (72:35) $700 minimum, towns adopt up to $4,000-$5,000. NH does NOT join the categorical full-vet-exemption states — treatment is town-by-town. Apply with town assessor (form PA-29 + DD-214) by April 15.

2026 Strafford County rate breakdown (total mill rate per $1,000 of AV (100% FMV; muni + county + school + SWEPT), Dover district)

Taxing entity	Rate
Combined municipal + county + local school + SWEPT (Dover ~24.55 mills, Rochester ~22 mills, Somersworth ~28 mills, Durham ~26 mills × 100% AR; county avg ~1.95%)	24.0000
Combined total	24.0000

As of April 27, 2026 · From Strafford County + Town Assessors (NH towns assess; UNH at Durham).

Note: Strafford County is **home to the University of New Hampshire** in **Durham** — UNH (~13,000 students — the celebrated flagship of the University System of New Hampshire, founded 1866 as a celebrated land-grant institution). Anchored by **Dover** (~33K, the celebrated former mill city + celebrated regional medical center, the de-facto county seat — the celebrated 1623 Cocheco River settlement, one of the celebrated oldest US permanent settlements), **Rochester** (~33K — the celebrated Lilac City), **Somersworth** (~12K), **Durham** (~16K — the celebrated UNH college town, dominated by university-related population), **Barrington** (~9K), **Farmington** (~7K), and **Lee** (~5K). Major employment includes **University of New Hampshire** (~5,000 academic + ~3,000 staff — the celebrated flagship NH state university), **Wentworth-Douglass Hospital** in Dover (the celebrated regional medical center, ~2,500 employees), the celebrated **Liberty Mutual** insurance Dover campus, substantial advanced manufacturing, and the celebrated **Dover Children's Museum**.

Note: Strafford County effective property tax rates run approximately **1.95%** — moderate by New Hampshire standards. Combined town mill rates: Dover 24.55 mills (~2.46% effective), Rochester ~22 mills, Somersworth ~28 mills, Durham ~26 mills. New Hampshire assesses at 100% of fair market value, so the mill rate equals the effective rate divided by 1,000. Median home values around $420K combined with the moderate effective rate produce median annual bills around $8,190.

Note: For relocation buyers: Strafford County offers **the celebrated UNH + Dover-Rochester + Seacoast-adjacent eastern New Hampshire** option — substantial UNH-anchored economy, the celebrated UNH Wildcats athletic identity (UNH football, hockey, men's/women's basketball), exceptional cultural amenities (the celebrated UNH Memorial Union, the celebrated Whittemore Center Arena), substantial Boston-metro overflow population (Dover to Boston ~75 min via I-95), and reasonable Portsmouth commute (Dover to Portsmouth ~25 min via Spaulding Turnpike). The trade-off: substantial UNH student-driven seasonal population variation, persistent Rochester-Somersworth post-mill-town economic transition, aggressive game-day traffic during UNH hockey season at the celebrated Whittemore Center.

Deductions and exemptions for 2026

New Hampshire homeowner property tax relief operates through several mechanisms — but with a critical caveat: relief is town-administered, not state-administered. NH towns/cities (234 total) are the assessing entity. State law sets minimum exemptions and credits; towns may (and most do) increase them substantially. The primary mechanisms are: (1) the Town-Option Elderly Exemption (RSA 72:39-a/b, age-tier AV reductions), (2) the Veterans' Tax Credits (RSA 72:28 standard, RSA 72:35 disabled — DIRECT tax credits, not AV reductions), (3) the SAH/SHA Specially Adapted Housing Exemption (RSA 72:36-a — narrow full exemption), and (4) the Current Use Assessment (RSA 79-A — for qualifying farm/forest land at use value rather than market value).

Town-Option Elderly Exemption (RSA 72:39-a/b)

Every NH town/city sets its own age-tier AV reduction amounts and income/asset eligibility limits. Typical structure: 3 age tiers (65-74, 75-79, 80+) with progressively larger AV reductions; income limit typically $40,000-$60,000 single or $50,000-$80,000 married; asset limit typically $100,000-$200,000 (excluding home). Affluent towns offer substantially larger exemptions: Hanover offers $200K AV reduction for 80+ (saves ~$3,000+/year at Hanover's mill rate), Concord offers tiered $50K-$130K, Manchester offers $75K-$135K. Other towns offer modest $25K-$50K reductions. Apply with town assessor between January 1 and April 15. Annual recertification required for income-tested programs.

Veterans' Tax Credits (RSA 72:28 + RSA 72:35)

Critical distinction: NH credits are DIRECT TAX CREDITS (subtracted from the bill), not AV reductions. Structure: (1) Standard Veterans' Tax Credit (RSA 72:28) — wartime vets, $50 state minimum, towns adopt $51-$750 (most towns at $500-$750). (2) All Veterans' Tax Credit (RSA 72:28-b) — all 90-day vets, similar $50-$750 range; cannot stack with RSA 72:28. (3) Total/Permanently Disabled Service-Connected Vet Credit (RSA 72:35) — 100% P&T vets, $700 state minimum, towns adopt up to $4,000-$5,000 (Londonderry adopted $5,000 starting 2026 tax year, several towns at $4,000). (4) Surviving Spouse of KIA (RSA 72:29-a) — $700-$2,000 town option. NH does NOT join the categorical full-exemption states — treatment is town-by-town with credit amounts varying $700-$5,000.

SAH/SHA Specially Adapted Housing Exemption (RSA 72:36-a)

FULL property tax exemption for 100% P&T disabled vets with VA-funded specially adapted homes (Specially Adapted Housing or Special Home Adaptation grants). Very narrow applicability — only qualifying severely disabled vets with VA-adapted homes. NOT a general full exemption.

Current Use Assessment (RSA 79-A)

Qualifying farm, forest, and unimproved land may be assessed at "current use" value (productive value) rather than market value. Substantial reduction — a 20-acre wooded parcel with $200K market value might be assessed at $3K under current use. Requires application + 10-acre minimum (mostly). Land-use change tax applies if removed from current use (10% of full market value).

Appealing your assessment

New Hampshire property tax appeals follow a 3-tier process. Level 1: Town Board of Selectmen / Town Assessor. File written appeal by March 1 (or within 60 days of bill mailing if later). Present comparable sales, recent appraisals, or condition documentation. Most appeals are resolved informally with the town. Level 2: NH Board of Tax and Land Appeals (BTLA) OR Superior Court. If unresolved with town, appeal to BTLA or Superior Court by September 1. BTLA is faster and cheaper (no filing fee). Level 3: NH Supreme Court. Most appeals are resolved at Level 1 or 2. Tax cycle: bills issued in 2 halves (first ~July, second ~December). Important: filing the BTLA appeal during the 5-year reassessment year is the most efficient path — pre-reassessment AVs cannot be challenged.

Cities and towns in Strafford County

Strafford County contains 7 incorporated municipalities, ranging from Dover to the smallest village. Search volume for property tax is often city-specific, so here is the complete list — with population from the 2020 US Census, rounded to the nearest 100.

Data: US Census Bureau, 2020 Decennial Census. Populations rounded. Cities marked as "split" straddle a county border — the portion inside Strafford County is subject to Strafford County's tax rolls, while the portion outside is subject to the adjacent county's.

City or town	Type	Population (2020)
Dover County seat	city	33,000
Rochester	city	33,000
Durham	town	16,000
Somersworth	city	12,000
Barrington	town	9,000
Farmington	town	7,000
Lee	town	5,000

About city-level property tax rates: The rate breakdown and calculator on this page reflect the Dover tax district. Other cities in Strafford County may pay into different school districts, city rates, and special districts — so their combined rates can differ, sometimes substantially. Always verify the specific rates for your address with the Strafford County + Town Assessors (NH towns assess; UNH at Durham) before relying on any estimate.

Frequently asked questions

When are New Hampshire property taxes due?

NH property tax bills are issued in 2 halves. The first bill (~July) is estimated at half of the prior-year tax. The second bill (~December) "trues up" at the final tax rate set by the NH Department of Revenue Administration (DRA). Due dates vary by town — most are due July 1 + December 1 or similar split. Late payments accrue 8% interest. Most homeowners pay through escrow via mortgage servicer.

Why does NH have such high property taxes?

New Hampshire has NO state income tax + NO state sales tax — property tax does virtually all state-and-local revenue work. The Interest & Dividend (I&D) tax is also being phased out (1% in 2026, eliminated 2027), making NH effectively income-tax-free starting 2027. The trade-off: NH's property tax burden ranks among the top 5 highest in the US (~1.93% statewide median). The celebrated "NH advantage" — the no-income/no-sales-tax structure — must be weighed against the correspondingly high property tax burden. For high-income earners, the trade-off generally favors NH (income tax savings exceed property tax premium); for lower-income earners, it may not.

What are the 4 components of the total mill rate?

Every NH property tax bill aggregates 4 separate rates: (1) Municipal rate — set by the town/city for general government services. (2) County rate — set by the county delegation for county services (jail, nursing home, registry of deeds). NH counties retain functional government. (3) Local school rate — set by the local school district (typically the LARGEST component, often 50-70% of total). (4) Statewide Education Property Tax (SWEPT) — $1.030/$1,000 for 2026 (RSA 76:3/76:8). The total mill rate visible on your tax bill is the sum of these 4 components.

Why do NH mill rates vary so dramatically between towns?

Among NH's 234 cities, towns, and unincorporated places, mill rates range from approximately $5.73/$1,000 (New Castle) to over $38/$1,000 (Berlin, Claremont) — a 6-7x range. The variation reflects substantial town-by-town differences in: commercial-vs-residential tax base composition (towns with substantial commercial property = lower residential rates), local school spending levels (school is the LARGEST component), and population density. Affluent seacoast and lakefront towns (New Castle, Wolfeboro, Center Harbor, Hanover) have low mill rates because seasonal/commercial property carries a substantial share of the burden. Post-industrial cities and rural towns with declining commercial tax base (Berlin, Claremont, Newport, Concord) have high mill rates. For relocation buyers, mill rate matters far more than home value in determining your actual NH property tax burden.

How does the Town-Option Elderly Exemption work?

New Hampshire's Elderly Exemption (RSA 72:39-a/b) is a TOWN-OPTION program — every NH town/city sets its own age-tier AV reduction amounts and income/asset eligibility limits. Typical structure: 3 age tiers (65-74, 75-79, 80+) with progressively larger AV reductions; income limit typically $40,000-$60,000 single or $50,000-$80,000 married; asset limit typically $100,000-$200,000 (excluding home). Affluent towns offer substantially larger exemptions: Hanover offers $200K AV reduction for 80+ (saves ~$3,000+/year). Apply with town assessor between January 1 and April 15 (annual recertification required). Combined with NH's high effective rates, the exemption can produce substantial savings ($1,000-$5,000+ annually depending on town).

How do New Hampshire Veteran Tax Credits work?

Critical distinction: NH credits are DIRECT TAX CREDITS (subtracted from the bill), not AV reductions. (1) Standard Veterans' Tax Credit (RSA 72:28) — wartime vets, $50 state minimum, towns adopt $51-$750 (most towns at $500-$750). (2) All Veterans' Tax Credit (RSA 72:28-b) — all 90-day vets, similar $50-$750 range. (3) Total/Permanently Disabled Service-Connected Vet Credit (RSA 72:35) — 100% P&T vets, $700 state minimum, towns adopt up to $4,000-$5,000 (Londonderry adopted $5,000 starting 2026 tax year). (4) SAH/SHA Specially Adapted Housing (RSA 72:36-a) — FULL property tax exemption (very narrow — only 100% P&T vets with VA-funded specially adapted homes). NH does NOT join the categorical full-exemption states. Apply with town assessor (state form PA-29 + DD-214 + VA disability rating) by April 15.

How do I appeal my New Hampshire assessment?

NH property tax appeals follow a 3-tier process. Level 1: Town Board of Selectmen / Town Assessor. File written appeal by March 1 (or within 60 days of bill mailing). Level 2: NH Board of Tax and Land Appeals (BTLA) OR Superior Court. Appeal by September 1. BTLA is faster and cheaper (no filing fee). Level 3: NH Supreme Court. Most appeals are resolved at Level 1 or 2. Important: filing the BTLA appeal during the 5-year reassessment year is the most efficient path — pre-reassessment AVs cannot be challenged.

About Strafford County

Beyond the property tax — a few things you might not know about the place.

Weird fact

Dover is **one of the celebrated oldest permanent European settlements in the United States** — founded **1623** by the celebrated William and Edward Hilton brothers as the celebrated **"Dover Combination"** — among the **first 5 permanent European settlements in what would become New England** (along with Plymouth MA 1620, Strawbery Banke/Portsmouth NH 1623, Salem MA 1626, and Boston MA 1630). The celebrated 1623 Hilton settlement at Dover Point (at the celebrated mouth of the Cocheco River where it meets the Piscataqua) became the celebrated **"Mother of New Hampshire"** — the celebrated origin point from which subsequent NH settlements at Strafford, Merrimack, and Hillsborough counties expanded westward. The celebrated **Dover Combination of 1640** (signed by 41 Dover residents — celebrated as the first written constitution drafted in present-day New Hampshire) established self-government in the celebrated Dover settlement, predating the celebrated 1639 Connecticut Fundamental Orders by one year (though scholarship debates which represents the celebrated "first" New England constitutional document). Dover's celebrated **Cocheco Manufacturing Company** (founded 1812) was the celebrated 19th-century Dover mill industry that transformed the celebrated colonial settlement into a celebrated New Hampshire industrial center. The celebrated **Dover Friends Meeting House** (1768) is the celebrated oldest religious meeting house in continuous use in New Hampshire.

Hometown hero

UNH alumni + Dan Brown + countless celebrated NH cultural figures

**Dan Brown** (born 1964 in Exeter, NH, raised in **Exeter** in Rockingham County, but with celebrated UNH connections) — the celebrated American author of the **best-selling Robert Langdon thriller novels** including ***Angels & Demons*** (2000), ***The Da Vinci Code*** (2003 — the celebrated 80+ million copy bestseller, adapted into the celebrated 2006 Tom Hanks film), ***The Lost Symbol*** (2009), ***Inferno*** (2013), and ***Origin*** (2017) — graduated from **Phillips Exeter Academy** in 1982 (his father was a celebrated longtime Exeter math teacher) and **Amherst College** in 1986. Brown's celebrated *The Da Vinci Code* is **one of the celebrated best-selling novels of the 21st century** — selling 80+ million copies worldwide and translated into 56 languages. **Other notable Strafford County figures** include **Tomie dePaola** (1934-2020 — the celebrated children's author and illustrator of the celebrated *Strega Nona* 1975 series of 270+ children's books, lived in New London, NH but with celebrated UNH connections), **John Sununu** (the celebrated former Governor of New Hampshire 1983-1989, then White House Chief of Staff under President George H.W. Bush — Salem, NH but with celebrated UNH educational connections), and **John Irving** (the celebrated American novelist of *The World According to Garp* 1978 and *A Prayer for Owen Meany* 1989 — born in Exeter, NH, with celebrated UNH connections through his father who taught at Exeter Academy).

Biggest annual event

UNH Wildcats hockey + Lilac Festival Rochester + Cocheco Arts Festival

The celebrated **UNH Wildcats men's ice hockey** at the **Whittemore Center Arena** (capacity 6,501, in Durham) draws celebrated regional attendance — the celebrated UNH hockey program has produced 4 NCAA Frozen Four appearances (1999, 2002, 2003, 2007) and dozens of celebrated NHL players including the celebrated **Sean Henn** (former Pittsburgh Penguins) and **James van Riemsdyk** (former Toronto Maple Leafs / Philadelphia Flyers). The celebrated **Rochester Lilac Festival** (annual, Memorial Day weekend in downtown Rochester, since the celebrated 19th-century Rochester lilac plantings) celebrates the celebrated "Lilac City" identity — drawing 25,000+ attendees over 3 days. The celebrated **Cocheco Arts Festival** (annual, July in downtown Dover, since 1977) is the celebrated regional arts festival drawing 30,000+ attendees over the celebrated 6-week summer season.

Property Tax in Strafford County, 2026