When property taxes are due in Honolulu County, HI — plus the official payment portal and what happens if you're late.
| Instalment | Due date | Notes |
|---|---|---|
| 2nd half, tax year 2026-27 | February 20, 2027 | February 20, 2027 is a Saturday; city ordinance moves the due date to the next business day. |
| 1st half, tax year 2027-28 | August 20, 2027 | Annual bill for the new tax year is mailed July 20, 2027. |
On a $400,000 purchase in Honolulu County, HI, property tax comes to about $1,104 a year — roughly $92 a month — at this county's effective rate of 0.28%.
Taxes remaining unpaid after the due date are delinquent and subject to a penalty of up to 10% plus interest of 1% for each month or part of a month.
2nd half, tax year 2026-27: February 20, 2027. 1st half, tax year 2027-28: August 20, 2027.
Taxes remaining unpaid after the due date are delinquent and subject to a penalty of up to 10% plus interest of 1% for each month or part of a month.
Pay online through www.honolulu.gov, the county's own payment portal, or by post or in person at the treasurer's office.
Fiscal year July 1 to June 30; annual bills are mailed July 20 and second-half bills January 20. Counties shift dates when billing is delayed, so confirm against the county source linked on this page.
About $1,104 a year, or $92 a month, at this county's effective rate of 0.28%. That rate is the county's median owner-occupied tax bill ($2,368) divided by the typical home value ($856,469). A seller's homestead or senior exemption usually does not transfer, so a new purchase can cost more.
Most counties offer instalment plans or partial payment — ask the treasurer before the due date, not after. Once the bill is delinquent the options shrink and the fees start.
Unpaid property tax is a lien on the property in most states, which your servicer may pay and then bill you for, with fees. It does not disappear.
CountyTaxDates is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.