What is the property tax rate in Kauai County?

The combined effective property tax rate in Kauai County, Hawaii is approximately 0.22%.

Kauai County Property Tax Calculator (2026) — Hawaii Property Tax Almanac

Property Tax in Kauai County, 2026

A calculator and field guide for Lihue-area homeowners — and for anyone considering a move to Kauai County — including Hawaii's lowest-in-the-nation effective property tax rates, the tiered Home Exemption (which both reduces taxable AV AND reclassifies your property to the lower owner-occupied rate), the County-specific home exemption amounts, and the full Disabled Veterans Exemption (subject to a $300 minimum tax).

Kauai County, home to Lihue and 73k Hawaii residents, operates under Hawaii's distinctive county-administered property tax system. Hawaii has only 4 counties (Honolulu / Hawaii / Maui / Kauai), and each county sets its own classification system, tax rates, and exemption amounts. Hawaii uses 100% assessment ratio. Tax = (Assessed Value − Home Exemption) × rate per $1,000 of AV. Hawaii has the lowest effective property tax rates in the United States (~0.27% statewide average) — but extraordinarily high home values mean the dollar amounts are still meaningful.

How the bill is built

Hawaii property tax has 3 steps. Step 1: Assessed Value. The County of Kauai Real Property Assessment determines AV at 100% of fair market value as of October 1. Step 2: Apply Home Exemption. Owner-occupants receive a Home Exemption that reduces taxable AV: $160K base with age tiers. Equally important: the Home Exemption RECLASSIFIES the property to the lower owner-occupied tax rate. Step 3: Apply rate per $1,000. Tax = (AV − exemption) × rate ÷ $1,000. Kauai's owner-occupied rate is $2.65/$1,000 — investment / non-owner-occupied properties pay substantially higher rates.

Hawaii's Home Exemption is the most-valuable owner-occupant property tax benefit in the US. It reduces taxable AV AND reclassifies the property to a lower owner-occupied rate. Kauai's $160K exemption + moderate owner-occupied rate provides strong protection. File with the County of Kauai Real Property Assessment by the applicable deadline.

Hawaii's tax year runs July 1 - June 30. Bills are due in two installments: August 20 (first half) and February 20 (second half). Late payments accrue penalties. Most Hawaii homeowners pay through escrow via mortgage servicer. The County mails Notice of Assessment by December 15 of the preceding year, with a 30-day appeal window (December 15 - January 15) before the new tax year begins.

100% disabled veterans pay only the $300 minimum property tax. Hawaii's veteran exemption is among the most-comprehensive in the United States — totally disabled veterans (100% service-connected) due to active-duty injury receive a full exemption from real property taxes on the dwelling, subject only to the statutory $300/year minimum. Surviving spouses (unmarried) retain. The exemption stacks with the standard Home Exemption. No annual filing deadline — apply before the first tax payment date with Form BFS-RP-E-10.5 or county equivalent.

2026 Kauai County rate breakdown (rate per $1,000 of AV (100% assessment, post home exemption), Lihue district)

Taxing entity	Rate
Kauai Owner-Occupied rate ($2.65 / $1,000 of net taxable AV after $160K home exemption — Tier 1 up to $1.3M)	2.6500
Combined total	2.6500

As of April 26, 2026 · From County of Kauai Real Property Assessment.

Note: Kauai County **is the entire island of Kauai** plus the small uninhabited island of Niihau (the "Forbidden Isle," privately owned by the Robinson family since 1864 and home to ~70 ethnic Hawaiian residents who maintain traditional Hawaiian language and lifestyle). Kauai is the oldest of the main Hawaiian islands (~5 million years old) and the fourth-largest by area (~552 sq mi). Population is ~73K — the smallest of the four Hawaii counties. The county seat is Lihue (~7K, also home to Lihue Airport LIH), with Kapaa (~10K, the largest community) on the east coast. Kauai is known as "The Garden Isle" for its lush vegetation and is home to Waimea Canyon (the "Grand Canyon of the Pacific"), the Na Pali Coast, and Hanalei Bay.

Note: Kauai County effective property tax rates run approximately **0.22% — among the lowest in the United States**. The Owner-Occupied rate is **$2.65 per $1,000 of net taxable AV** for Tier 1 (under $1.3M) with $160,000 home exemption. Tier 2 ($1.3M-$2M) is $3.05/$1,000; Tier 3 (over $2M) is $3.50/$1,000. Median home values around $795K combined with the moderate rate produce median annual bills around $1,749. Non-owner-occupied (investment) rates are substantially higher. Property tax year: July 1 - June 30. Bills due August 20 and February 20.

Note: For relocation buyers: Kauai County offers **the most-natural-character Hawaii lifestyle** — Kauai's famously preserved natural environment (no building higher than a coconut tree is a planning rule for most areas), substantial outdoor recreation (hiking, surfing, kayaking the Na Pali Coast), and a smaller, more-tight-knit community than Oahu or Maui. The trade-offs: extremely limited employment options outside healthcare, education, government, and tourism; the most-restrictive housing supply in Hawaii (driven by aggressive zoning for natural-character preservation); and very limited commercial flight options (LIH primarily inter-island with some Mainland service). Strong retiree and second-home demand from West Coast buyers — particularly the North Shore (Princeville, Hanalei).

Deductions and exemptions for 2026

Hawaii homeowner property tax relief is concentrated in two mechanisms: (1) the Home Exemption (which both reduces taxable AV AND reclassifies to the lower owner-occupied tax rate), and (2) the 100% Disabled Veterans Exemption (full exemption subject to $300 minimum tax). Honolulu (the largest county) also offers the Real Property Tax Credit limiting tax to 3% of household income (income limit $80K).

The Home Exemption (Kauai County)

The Home Exemption is the most-valuable owner-occupant property tax benefit by percentage in the United States. It (1) reduces taxable AV by a fixed amount AND (2) reclassifies the property to the lower owner-occupied tax rate (vs. the substantially higher non-owner-occupied / Residential A rates). Kauai County exemption amounts: $160,000 base. Higher exemption tiers apply for owners 60+ and 70+. Eligibility: own and occupy the property as principal home for more than 270 days/year; ownership recorded at the State Bureau of Conveyances; file Hawaii state income tax return as a resident of Kauai. Filing deadline: September 30 preceding the tax year.

100% Disabled Veterans Exemption (full, subject to $300 minimum)

Hawaii provides a near-full property tax exemption for 100% disabled veterans across all 4 counties. Eligibility: totally disabled (100% service-connected) due to active-duty injury with US Armed Forces. Mechanism: full exemption from real property taxes on the dwelling, subject to the statutory $300/year minimum tax. Surviving spouses: unmarried surviving spouses retain the exemption AND continue to occupy the home. Stacks with Home Exemption: the disabled vet exemption applies in addition to the standard Home Exemption (so a 100% disabled vet pays only the $300 minimum on a primary residence regardless of AV). No annual filing deadline. Apply before the first tax payment date (August 20) with Form BFS-RP-E-10.5 (Honolulu) or county equivalent + DD-214 + VA rating decision.

Real Property Tax Credit (Honolulu, income-tested)

The other Hawaii counties (Maui, Hawaii, Kauai) offer separate income-tested credits and senior credits — contact your county Real Property Tax Division for current programs and amounts.

Appealing your assessment

Hawaii property tax appeals follow a multi-tier process. Level 1: County Real Property Tax Review Board. File appeal between December 15 and January 15 after receiving the Notice of Assessment (mailed by December 15 of the preceding year). The Review Board hears appeals from owner-occupants. Level 2: Tax Appeal Court. Review Board decisions can be appealed to the Hawaii Tax Appeal Court (a state-level administrative court). Level 3: State of Hawaii appellate courts. Tax Appeal Court decisions can be appealed to the Hawaii Intermediate Court of Appeals and Hawaii Supreme Court on legal/constitutional grounds. Most Hawaii appeals are resolved at Level 1 — particularly when the homeowner can show comparable sales evidence or significant condition issues.

Cities and towns in Kauai County

Kauai County contains 5 incorporated municipalities, ranging from Lihue 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 Kauai County is subject to Kauai County's tax rolls, while the portion outside is subject to the adjacent county's.

City or town	Type	Population (2020)
Kapaa	Census-designated place	10,300
Lihue County seat	Census-designated place	7,100
Princeville	Census-designated place	2,300
Waimea	Census-designated place	1,700
Hanalei	Census-designated place	500

About city-level property tax rates: The rate breakdown and calculator on this page reflect the Lihue tax district. Other cities in Kauai 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 County of Kauai Real Property Assessment before relying on any estimate.

Frequently asked questions

When are Hawaii property taxes due?

Hawaii's property tax year runs July 1 through June 30. Bills are due in two installments: August 20 (first half) and February 20 (second half). Late payments accrue penalties. Most Hawaii homeowners pay through escrow via mortgage servicer. The County mails the Notice of Assessment by December 15 of the preceding year.

What is the Home Exemption and how does it work?

The Home Exemption is the most-valuable owner-occupant property tax benefit in the United States by percentage. It does two things: (1) reduces taxable AV by a fixed amount, AND (2) reclassifies the property to the substantially-lower owner-occupied tax rate (vs. higher non-owner-occupied / Residential A rates). Kauai County exemption: $160,000 base, with higher tiers for 60+ and 70+. Eligibility: own and occupy as principal home for more than 270 days/year; ownership recorded at State Bureau of Conveyances; file Hawaii state income tax return as a Kauai resident. Filing deadline: September 30 (most counties) preceding the tax year. ONE application — no annual renewal.

Why are Hawaii's owner-occupied rates so much lower than non-owner-occupied?

Hawaii's property tax structure is intentionally designed to discourage absentee / investor ownership and protect resident homeowners. Kauai's owner-occupied rate is $2.65/$1,000 — substantially below higher investment / vacation rental rates. The differential rate structure means filing for the Home Exemption is critical for resident homeowners.

How do I qualify for the 100% Disabled Veterans full exemption?

Hawaii provides a near-full property tax exemption for 100% disabled veterans. Eligibility: totally disabled (100% service-connected) due to active-duty injury with US Armed Forces. Mechanism: full exemption from real property taxes on the dwelling — only the statutory $300/year minimum tax applies regardless of home value. Surviving spouses: unmarried surviving spouses retain. Stacks with Home Exemption: the disabled vet exemption applies in addition to the standard Home Exemption. No annual filing deadline. Apply before the first tax payment date (August 20) with Form BFS-RP-E-10.5 (Honolulu) or county equivalent + DD-214 + VA rating decision.

Hawaii has the lowest property tax rates in the US — what's the catch?

Hawaii's effective property tax rates are the lowest in the United States (~0.27% statewide median for owner-occupied), but the dollar amounts are still meaningful because home values are extraordinarily high (median ~$830K in Honolulu). The bigger catch is total tax burden: Hawaii has the highest state income tax (top rate 11%, the highest in the US tied with California), a 4.5% General Excise Tax that pyramids through transactions (effectively higher than mainland sales taxes), and the highest cost of living in the United States (groceries, energy, healthcare, housing). Most relocation analyses suggest Hawaii makes sense for lifestyle reasons rather than tax efficiency — but if you ARE relocating, the property tax structure is extraordinarily favorable to owner-occupants.

How do I appeal my Hawaii assessment?

Hawaii property tax appeals follow a multi-tier process. Level 1: County Real Property Tax Review Board. File appeal between December 15 and January 15 after receiving the Notice of Assessment (mailed by December 15 of the preceding year). The Review Board hears appeals from owner-occupants. Level 2: Tax Appeal Court. Review Board decisions can be appealed to the Hawaii Tax Appeal Court (a state-level administrative court). Level 3: State of Hawaii appellate courts. Tax Appeal Court decisions can be appealed to the Hawaii Intermediate Court of Appeals and Hawaii Supreme Court on legal/constitutional grounds. Most Hawaii appeals are resolved at Level 1 — comparable sales evidence and condition documentation are the most-effective bases.

About Kauai County

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

Weird fact

Kauai is **the only Hawaiian island never conquered by King Kamehameha I** — despite Kamehameha's successful unification of the other Hawaiian islands through warfare from 1782 to 1795, his attempts to invade Kauai in 1796 (a major naval expedition that was destroyed by storms) and 1804 (called off due to a smallpox epidemic that killed his soldiers) both failed. Kauai's ali'i (chief) Kaumualii eventually negotiated a peaceful tributary relationship with Kamehameha in 1810 — making Kauai the only island formally united with the Kingdom of Hawaii by treaty rather than conquest. This independent history is reflected in Kauai's strong sense of distinct island identity.

Hometown hero

Pierce Brosnan

The Irish-American actor (born 1953) — best known as the fifth James Bond actor (1995-2002, in GoldenEye, Tomorrow Never Dies, The World Is Not Enough, and Die Another Day) — has been a Kauai resident since the 1990s, owning a substantial estate near Kauai's North Shore. Brosnan is known locally for his community involvement, including environmental activism on Kauai (opposing GMO seed-corn operations on the island's west side) and support for North Shore community organizations. Brosnan's pre-Bond credits include Remington Steele (1982-1987 NBC series) and Mrs. Doubtfire (1993); post-Bond credits include Mamma Mia! (2008), The November Man (2014), and Black Adam (2022).

Biggest annual event

Garden Isle Marathon + Kauai Polynesian Festival

The Kauai Marathon (annual, early September on the south shore of Kauai, since 2009) is one of the most-scenic marathons in the United States — drawing 1,500+ runners with a course passing Poipu Beach, Spouting Horn, and the Mahaulepu coastline. The Kauai Polynesian Festival (annual, late June at Kapaa Beach Park) celebrates the cultural heritage of all major Polynesian peoples (Hawaiian, Samoan, Tongan, Maori, Tahitian, Marquesan) — drawing 15,000+ attendees with traditional dancing competitions, craft demonstrations, and Polynesian food vendors.

Property Tax in Kauai County, 2026