Honolulu County Property Tax Calculator (2026)
The Honolulu County median effective property tax rate is 0.31% for 2026 (U.S. Census Bureau ACS 2024), 0.04% above the Hawaii median of 0.27%. On a $400,000 home that is about $1,240 a year (~$103 a month). Honolulu County property is assessed by the City and County of Honolulu Real Property Assessment Division (RPAD). Enter your home value below for an instant estimate.
What is the Honolulu County property tax rate in 2026?
Honolulu County's median effective property tax rate is 0.31% (U.S. Census Bureau ACS 2024). The county median home is $897,500 with a median tax of about $2,553.
How much is property tax on a $400,000 home in Honolulu County?
About $1,240 a year, or roughly $103 a month, at the 0.31% median effective rate before exemptions.
Who handles property tax in Honolulu County?
The City and County of Honolulu Real Property Assessment Division (RPAD) sets your assessed value. The City and County of Honolulu Treasury Division collects the bill. Appeal by File an appeal by January 15.
When are Honolulu County property taxes due?
Two installments: the first is due August 20 and the second is due February 20.
Honolulu County Property Tax Calculator (2026)
Rates updated 2026 (U.S. Census Bureau ACS 2024). Live estimate — county median effective rate.
Honolulu County's median effective property tax rate is 0.04% above the Hawaii median and the US average is 0.94%. Your assessed value, local millage, and exemptions (homestead, senior, veteran) will change the actual bill.
Who assesses and collects property tax in Honolulu County?
In Honolulu County, the City and County of Honolulu Real Property Assessment Division (RPAD) sets the assessed value of your home each year. The City and County of Honolulu Treasury Division issues the bill and collects payment.
For your exact rate, exemptions, and account details, go to realproperty.honolulu.gov — the official source for Honolulu County. This page is an independent estimate, not a tax bill.
How much is property tax on a home in Honolulu County?
At the Honolulu County median effective rate of 0.31%, here is the estimated annual and monthly bill by home value. The county median home value is $897,500, with a median tax of about $2,553 a year.
| Home value | Rate (0.31%) | Annual tax | Monthly |
|---|---|---|---|
| $200,000 | 0.31% | $620 | $52 |
| $400,000 | 0.31% | $1,240 | $103 |
| $897,500 (county median) | 0.31% | $2,553 | $213 |
| $750,000 | 0.31% | $2,325 | $194 |
When are Honolulu County property taxes due, and when can you appeal?
Assessment (lien) date: October 1 valuation date; assessment notices are mailed by December 15. Annual — RPAD values every parcel on Oahu each year and sorts it into a property class (Residential, Residential A, and others).
Payment: Two installments: the first is due August 20 and the second is due February 20.
Appeal window: File an appeal by January 15, following the December 15 assessment notice. Missing it usually means accepting the assessed value for the year.
What exemptions can lower your Honolulu County property tax?
| Exemption | Amount or rule |
|---|---|
| Home exemption | $120,000 off assessed value for an owner-occupant, or $160,000 if 65 or older; file by September 30 |
| Additional age & disability exemptions | larger exemptions for older owners and people with disabilities, plus a low-income tax credit |
Amounts and eligibility change over time and are administered locally, so confirm what you qualify for with the City and County of Honolulu Real Property Assessment Division (RPAD) before relying on a figure.
How do you estimate your Honolulu County property tax by hand?
- Find your home's assessed value on your latest notice from the City and County of Honolulu Real Property Assessment Division (RPAD).
- Subtract any exemptions you qualify for, such as homestead, senior, or veteran relief.
- Multiply the remaining taxable value by your local combined tax rate.
- For a quick estimate, multiply your home value by 0.31% — the Honolulu County median effective rate used above.
Which cities are in Honolulu County, and what makes it different?
Honolulu County includes Honolulu, Pearl City, Kapolei, Kaneohe, Waipahu, Mililani, Ewa Beach, Kailua, among others. Rates differ between these cities and their school and special districts, so two homes of equal value can owe different amounts.
The City and County of Honolulu covers the entire island of Oahu and has the lowest effective property-tax rate of any large U.S. county. Owner-occupants who file a Home Exemption by September 30 remove $120,000 (or $160,000 at age 65+) from their assessed value and qualify for the lower Residential class rate; without it, high-value homes can fall into the costlier Residential A class.