Hawaii Property Tax Calculator - Combine fair market value, county rate, and homeowner exemption to see the annual and monthly Hawaii property tax.

The Hawaii Property Tax Calculator estimates the annual real property bill you owe on a Hawaii home by combining its fair market value, Hawaii's 100 percent assessment ratio, your county tax rate per $1,000 of assessed value, and the homeowner exemption. Hawaii is unusual because the state itself levies no property tax at all, so the entire bill comes from the county where the property sits: Hawaii, Honolulu, Kauai, or Maui. The tool shows how a flat homeowner exemption and a per-$1,000 rate turn a sale price into a yearly charge without guesswork.

• • Buyers comparing islands and neighborhoods: Compare the carrying cost of homes across counties by plugging in each area's rate per $1,000 and the local homeowner exemption.
• • Homestead applicants: See how claiming the homeowner exemption changes the annual bill, and how an additional exemption for older owners helps.
• • Landlords and investors: Estimate the tax on a non-homestead rental where no exemption applies.
• • Budgeting owners: Turn the annual figure into a monthly amount that folds into a housing payment.

Hawaii assesses real property at 100 percent of fair market value under Hawaii Revised Statutes 246-4, so the assessed value starts equal to the price rather than a fraction of it.

Because the exemption is a flat dollar amount rather than a percentage, it relieves low-value homes far more in percentage terms than high-value ones.

The four counties set their own rates and classification tables, so the same $800,000 home can owe noticeably more on Maui or Kauai than on Oahu once the local rate per $1,000 is applied.

Because the property bill is a fixed cost and income funds it, Hawaii Paycheck Calculator shows the take-home pay that covers the tax each month.

The calculator multiplies the taxable value by the county rate and removes the exemption along the way.

• marketValue: Fair market value of the property before the assessment ratio is applied.
• assessmentRatio: Hawaii assesses most real property at 100% of fair market value under HRS 246-4.
• homeownerExemption: County homeowner exemption subtracted before the rate is applied, such as Honolulu's $120,000 basic exemption.
• ratePer1000: County real property tax rate in dollars per $1,000 of net assessed value.

Each county states its rate as dollars per $1,000 of net assessed value, so a $3.50 rate charges $3.50 for every $1,000 of taxable value.

The effective rate shown is the annual tax divided by market value, which stays well under the nominal rate because the base is large.

Honolulu and the neighbor-island counties publish separate rate tables for owner-occupied, long-term rental, hotel, and agricultural classes, so the rate you enter should match the home's actual use rather than a county-wide average.

According to City and County of Honolulu - Homeowner Exemption, Honolulu's basic homeowner exemption is $120,000 (FY2024-25), with an additional $120,000 for owners 65 or older.

Once you know the annual property tax, Mortgage Calculator folds it into the monthly housing payment so the full carrying cost is visible.

Four ideas explain why the Hawaii Property Tax Calculator shows a bill that looks different from the mainland.

Because all real property tax is county-level, the same home on different islands can carry very different bills even at similar prices.

The flat exemption means a modest home feels a larger percentage drop than a luxury home when homestead status is claimed.

Hawaii's constitution requires a uniform assessment ratio, so the 100 percent base applies the same way whether the property is a condo in Honolulu or a house on Hawaii Island; only the county rate and classification differ.

Hawaii taxes at 100% of value while Florida also uses a 100% ratio with its own exemptions, so Florida Property Tax Calculator shows how another no-state-tax state structures the same bill.

Five steps take you from a listing price to a monthly tax figure.

1. 1 Find the fair market value: Use the sale price, appraisal, or county assessed value for the property.
2. 2 Confirm the assessment ratio: Leave it at 100 percent unless you are modeling a special classification such as agricultural land.
3. 3 Enter the homeowner exemption: Use $120,000 for a basic Honolulu homestead, or the amount for your county and age bracket.
4. 4 Add the county rate: Enter the dollars-per-$1,000 rate from the county finance department's tax rate schedule.
5. 5 Read the annual and monthly tax: Use the monthly figure to compare against the mortgage payment.

A $450,000 Oahu condo at a $3.20 rate with the $120,000 exemption produces about $1,056 a year, or $88 a month, before any senior surcharge relief.

Georgia taxes at 40% of value while Hawaii uses 100%, so Georgia Property Tax Calculator shows how a different assessment ratio changes the dollars owed.

The Hawaii Property Tax Calculator helps owners avoid common surprises with Hawaii levies.

• • Shows the exemption's true value: You see exactly how many dollars the homeowner exemption removes at your county rate.
• • Models the homestead choice: Compare a homestead home with a rental where no exemption applies.
• • Shows the effective rate: The percent of value paid makes counties with different prices and rates easier to compare.
• • Feeds a monthly budget: The monthly figure drops straight into a housing payment estimate.
• • Clarifies the 100 percent ratio: No hidden ratio guesswork; the assessed base is the market value.
• • Highlights rate sensitivity: Small per-$1,000 rate changes move the bill more than many owners expect once the base is set.

Because Hawaii has no state property tax, your county choice is the single biggest structural driver of the bill.

The split output makes the value of claiming homestead status concrete rather than abstract.

Because property tax is a deductible rental expense, Rental Property Tax Calculator shows how the same levy flows through a return for an investment property.

Five factors move the Hawaii bill the most.

• • This estimate uses the flat homeowner exemption you enter and does not model every county's age or disability surcharges automatically.
• • It assumes the rate per $1,000 you enter already includes all applicable district surcharges; a partial rate understates the bill.

Counties publish the rate schedule each year; your actual rate may differ from a simple county average shown in guides.

Use the result as a planning estimate and confirm the exact rate and exemption on the county finance department's notice.

According to County of Hawaii - Real Property Tax, Hawaii counties set and collect real property tax with no state levy, and rates apply per $1,000 of assessed value.

Alaska also skips a state property tax and leaves the bill to local governments, so Alaska Property Tax Calculator shows how another no-state-levy structure compares with Hawaii.