Kauai County, HI Property Taxes (2026)

Kauai County owners pay a median of $1,840 a year on a median home value of $817,900, an effective rate of 0.22%. That's the 3rd-highest rate of 4 Hawaii counties with Census data, below the Hawaii county median of 0.25%.

Updated October 2026 · Data: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023)

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Effective tax rate

0.22%

3rd highest of 4 in HI

Median annual bill

$1,840

~$153/month

Median home value

$817,900

Hawaii county median

0.25%

Effective rate

What a protest could save you in Kauai County

Enter the market value from your appraisal notice. We apply Kauai County's 0.22% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$1,799
Savings at 10–15% off
$180–$270
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Kauai County vs. Hawaii vs. U.S. property tax rates

Kauai County0.22%
Hawaii county median0.25%
U.S. county median0.84%

Key stat: Kauai County's effective property tax rate is 0.22%, vs. 0.25% for the median Hawaii county and 0.84% for the median U.S. county. It ranks 3rd of 4 in Hawaii. Effective rate = median tax bill ÷ median home value, so it already reflects typical exemptions. (Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023))

How to appeal your property taxes in Kauai County

  1. 1

    Review your assessment notice

    Check the assessed value from the Kauai Real Property Assessment Division. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The Kauai County deadline is Varies by county. Missing it means waiting until the next assessment year.

  3. 3

    Gather evidence

    Recent comparable sales, photos of condition issues, repair estimates or an independent appraisal.

  4. 4

    Present your case

    Submit evidence or attend a hearing with the Real Property Assessment Division.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $1,840 bill, 10–15% off is $184–$276 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Hawaii

Hawaii homeowners may qualify for exemptions that reduce taxable value. Check with the Kauai Real Property Assessment Division for amounts.

Homestead exemption

For your primary residence. Reduces the value used to calculate your bill.

Senior / over-65

Many states add an exemption or freeze for owners 65 and older.

Disability

For homeowners with qualifying disabilities, often similar to the over-65 benefit.

Veterans

Disabled veterans may get partial or full exemptions depending on rating.

Frequently Asked Questions

What is the property tax rate in Kauai County, Hawaii?
The median effective property tax rate in Kauai County is 0.22%: a median annual bill of $1,840 on a median home value of $817,900. That's the 3rd-highest rate of 4 Hawaii counties with Census data. Your own rate depends on which city, school district and special districts you're in. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023).
How much are property taxes in Kauai County?
The median Kauai County property tax bill is $1,840 a year, about $153 a month, compared with a Hawaii county median of $1,641.
What is the deadline to appeal property taxes in Kauai County?
The deadline to appeal in Kauai County is Varies by county. Missing it means waiting until the next assessment cycle.
Is Kauai County a high property tax area?
Kauai County's 0.22% effective rate is below the Hawaii county median of 0.25% and below the U.S. county median of 0.84%. That's the 3rd-highest rate of 4 Hawaii counties with Census data.
Can TaxDrop help lower my Kauai County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Honolulu County

Rate: 0.28%

Median bill: $2,482

Maui County

Rate: 0.17%

Median bill: $1,442

Hawaii County

Rate: 0.29%

Median bill: $1,392

← All 4 Hawaii counties

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