estimatetax
2026 · Hawaii · County

Kalawao County Tax Estimator

The Census does not publish a separate rate for Kalawao County because of its size, so this uses the Hawaii average. It is the least precise estimate on the site and we would rather label it than hide it.

County Kalawao CountyState HINo parcel number needed
$
Estimated annual property tax
$790

About $66 a month in escrow

Effective rate
0.226%
County median bill
State average
El Census no publica dato propio para este condado por su tamaño de muestra, así que se usa la media de su estado. Es la estimación menos precisa del sitio y conviene contrastarla con el condado.

How property tax works in Kalawao County

Your bill is the assessed value of your home multiplied by the combined rate of every authority that taxes it — the county, the school district, the city or township, and often a fire or library district. Those rates are set separately and added together, which is why two houses of identical value on opposite sides of a district line can owe different amounts.

Kalawao County is small enough that the Census does not publish separate median figures for it, so the estimate above falls back to the Hawaii average.

Kalawao County against the rest of Hawaii

Comparable figures for the rest of Hawaii are limited for this county.

Counties with a similar rate

What a home costs to hold in Kalawao County

Home valueAnnual property taxPer month
$200,000$452$38
$300,000$677$56
$400,000$903$75
$500,000$1,129$94
$750,000$1,693$141
$1,000,000$2,258$188

At Kalawao County’s effective rate, before any exemption you qualify for. Most lenders collect this monthly into an escrow account alongside the mortgage payment.

Income tax in Hawaii, while you are here

Hawaii taxes income through 12 brackets, up to 11.00%, on top of the property tax above. Work out your Hawaii income tax.

Property tax and income tax in Hawaii, together

Hawaii taxes income as well as property, so a full picture of what living in Kalawao County costs needs both. The property side is local and is on this page; the income side is set at state level and applies wherever in Hawaii you live.

The two are worth adding together rather than comparing separately, because states trade them off against each other. A state with a low income tax often leans harder on property, and vice versa — which is why a single-tax comparison between two states can point the wrong way.

What the Kalawao County figure is, and what it is not

We do not have a Census-published median tax and home value for Kalawao County. This happens in the smallest counties, where the American Community Survey sample is too thin to publish a reliable figure, and it is a limitation of the source rather than a sign that nothing is levied here.

Where that is the case we fall back to the Hawaii average of 0.23% so the calculator still gives you something to work with — but treat it as an order of magnitude, not as this county's rate. The only authoritative number is the one on the assessor's own roll.

We would rather show you this paragraph than a confident number we cannot support. Every other county page on this site carries its own figure precisely because it has one.

Kalawao County at a glance

Kalawao County has a population of about 43, 95 housing units, and a median household income of $86,250.

It is a small county, and that has two consequences for the numbers here. Census estimates carry wider margins of error on small populations, and a single large taxpayer — a plant, a utility, a resort — can move the whole rate when it arrives or leaves.

The Hawaii rules that change your Kalawao County bill

Hawaii sets property tax at COUNTY level, not state level — it is one of the few states where that is true, and it means the four counties genuinely differ. In the City and County of Honolulu the home exemption removes $120,000 of assessed value for an owner-occupier, rising to $160,000 from age 65. Maui, Hawai‘i and Kaua‘i counties set their own. On the $350,000 median home in Kalawao County, that exemption alone takes $120,000 off the value being taxed.

Hawaii assesses at 100% of market value and then sets rates by property CLASS at county level — owner-occupied, hotel and resort, residential investment and so on, each with its own rate. It is the class that does the work here, not a ratio, and getting your home classified as owner-occupied is worth more than any other single step.

These are Hawaii rules and they apply in every county in the state, Kalawao County included. What varies locally is the rate, not the relief — so if you qualify for the relief and have not claimed it, the Kalawao County assessor is where that gets fixed.

What actually sets your Kalawao County bill

Three numbers decide your bill, and the rate is only one of them. The first is assessed value, and Hawaii taxes the full market value rather than a fraction of it — so nothing is discounted before the exemptions come off, and the headline rate here means what it says.

The second is how fast that value is allowed to move. We have not loaded a statewide cap for Hawaii, so assume your assessment can follow the market unless your assessor tells you otherwise.

The third is the combined rate of every authority that reaches your parcel — the county, the school district, the city or township, often a fire or library district. They are set separately and added, which is why two houses of identical value on opposite sides of a line in Kalawao County owe different amounts and both figures are correct.

And a fourth that is not a number but a form: the Hawaii homestead relief is worth $120,000 and in most counties it is not applied automatically. An owner who never filed pays the unrelieved amount indefinitely, and nothing on the bill tells them so.

Buying in Kalawao County? Read this first

Property tax is the part of the monthly cost buyers most often underestimate, because it does not surface until the lender builds the escrow. Without a published rate for Kalawao County we cannot put a figure on it here; the assessor can.

One rule to check before you rely on the seller's number: whether Hawaii revalues the property when it changes hands. Where it does, the seller's bill can understate yours badly; where it does not, you inherit their position. We have not loaded that rule for Hawaii, so ask the Kalawao County assessor directly rather than assuming.

Then file for the homestead relief in your first year. Deadlines are set locally and are usually short. Missing it is the most common and most expensive paperwork mistake a new owner in Hawaii makes.

If your Kalawao County assessment looks wrong

You can contest the assessed value. You cannot contest the rate — that is set by elected bodies and is not open to appeal. So the question to answer before filing is narrow: would this property actually sell for what the assessor says it is worth?

Gather comparable sales close to the assessment date rather than to today. An assessor is defending a valuation as of a particular day, and recent sales that postdate it carry little weight.

Deadlines are short and usually run from the date the assessment notice is mailed rather than from when you opened it. The Kalawao County assessor's office is where the clock is published, and missing it costs the whole year — there is no late appeal in most jurisdictions.

Kalawao County property tax questions

What is the property tax rate in Kalawao County?
The Census does not publish a separate median tax and home value for Kalawao County — the survey sample is too thin in the smallest counties — so we cannot state a rate for it. The calculator falls back to the Hawaii average of 0.23% so you have something to work with, but treat it as an order of magnitude. The Kalawao County assessor holds the only authoritative figure.
Will my Kalawao County tax bill change when I buy?
That depends on whether Hawaii revalues a property when it changes hands, and we have not loaded that rule for Hawaii. It matters: in states that reassess on sale, the seller's bill can badly understate what you will pay. Ask the Kalawao County assessor before you rely on the current figure.
Is there a homestead exemption in Kalawao County?
Yes. It is set by Hawaii and applies in every county including Kalawao County. Hawaii sets property tax at COUNTY level, not state level — it is one of the few states where that is true, and it means the four counties genuinely differ. In the City and County of Honolulu the home exemption removes $120,000 of assessed value for an owner-occupier, rising to $160,000 from age 65. Maui, Hawai‘i and Kaua‘i counties set their own. In most counties it is not applied automatically — you have to claim it, and an owner who never filed goes on paying the unrelieved amount indefinitely.
Is my Kalawao County home taxed on its full market value?
Yes. Hawaii assesses at 100% of market value and then sets rates by property CLASS at county level — owner-occupied, hotel and resort, residential investment and so on, each with its own rate. It is the class that does the work here, not a ratio, and getting your home classified as owner-occupied is worth more than any other single step. That is worth knowing when you compare Hawaii against a state that taxes a fraction — a lower rate somewhere else can still mean a higher bill.
Can I appeal my Kalawao County assessment?
You can contest the assessed value, but not the rate — the rate is set by elected bodies and is not open to appeal. Deadlines are short and usually run from the date the assessment notice was mailed rather than from when you opened it. The Kalawao County assessor's office publishes the current window, and in most jurisdictions there is no late appeal.
Does Hawaii have an income tax as well?
Yes. Hawaii taxes income at graduated rates up to 11.00%, on top of the property tax on this page. Worth adding the two together before comparing Hawaii against anywhere else.
Do I need a parcel number to use this calculator?
No, and that is deliberate. The Kalawao County assessor's own estimator generally asks for one, which is fine if you already own the property and useless if you are deciding whether to buy it. This works from the home value instead. It is an estimate built on the county's effective rate, which averages across every district inside Kalawao County, so your exact bill depends on your district combination and on any exemption you qualify for. For the binding figure, the Kalawao County assessor or treasurer is the authority.
Where these numbers come from

US Census Bureau, American Community Survey 5-year 2023. B25103 median real estate taxes paid · B25077 median home value · B19013 median household income. Retrieved 2026-08-31. The effective rate is the county’s median tax paid divided by its median home value — a federal, citable figure. It is not the same as the exact millage for your parcel, and we do not claim it is. For that, go to the Kalawao County assessor.

An estimate for planning, not tax advice, and not a substitute for the county’s own assessment. County list: US Census Bureau, national county file 2020.