Quick Answer
What happens to your Oahu property tax when you move out and rent the house?
It ends, but not by itself, and that is the part that costs people. Honolulu puts the duty on you: under ROH section 8-10.1(d) you must report the change within 30 days, and no later than November 1. Miss that and the penalty is $300 for that year and for each year it stays unreported, plus the back taxes you should have been paying. The bill itself matters too, because above $1,000,000 losing the exemption moves the home into Residential A, roughly $9,700 a year on a $1,500,000 home instead of roughly $4,830.
By Aksana Tupalskaya | October 13, 2026
Owners leaving Oahu almost always run the hold-or-sell numbers. Rent against mortgage, management fee, vacancy, repairs. Two lines usually get left out, and the second one is the one that turns into a letter.
The exemption is not the expensive part
Honolulu’s home exemption removes $120,000 from assessed value before tax is calculated, or $160,000 if you are 65 or older. Lose that alone and you are out a few hundred dollars a year.
The expensive part is what the exemption quietly protects you from. A residential property assessed at $1,000,000 or more with no home exemption on file is classified Residential A and taxed on a different schedule entirely.
Standard Residential is a flat $3.50 per $1,000 of net taxable value. Residential A charges $4.00 per $1,000 on the first $1,000,000, then $11.40 per $1,000 on everything above that. My post working Residential A through with real numbers has the full arithmetic, and a Kaimuki example shows two near-identical homes where the filing was the only difference.
| Assessed value | Owner-occupied, exemption filed | Rented out, no exemption | What it costs you per year |
|---|---|---|---|
| $900,000 | about $2,730/yr | about $3,150/yr | about $420/yr, deduction only |
| $1,500,000 | about $4,830/yr | about $9,700/yr | about $4,870/yr, Residential A applies |
| $5,000,000 | about $17,080/yr | about $49,600/yr | about $32,520/yr, Residential A applies |
| The trigger | Exemption on file keeps standard class | $1M or more and no exemption | Class change, not just a lost deduction |
What this tells me as the numbers agent for Oahu owners: below a million dollars this is a rounding error in your rent math, and above it the tax change alone can take a month or more of rent off the top every year you hold.
Nobody takes it off for you, and that is the trap
Here is the part most owners get wrong, and it is the reason this costs more than the table above suggests.
The exemption does not come off when you move out. It stays on until you report the change. Honolulu’s rule puts the duty squarely on the owner: under ROH section 8-10.1(d), an owner who has been allowed an exemption must report to the assessor within 30 days after the owner or the property stops qualifying, and no later than November 1. Filing that report is what voids the claim.
So the bills keep arriving at the lower, owner-occupant number. Nothing bounces. Your tenant moves in, you move to the mainland, and for a year or two the county keeps billing you as though you still live there.
That is not a windfall. It is a debt accumulating quietly. The penalty for failing to report by November 1 is $300, and RPAD’s materials state it applies for each year thereafter that the change goes unreported. On top of that, failing to report may result in the levy of the taxes that should have been assessed in the first place, with additional penalties or interest on the past-due amounts.
Put those together on a $1,500,000 home and the shape of the problem is clear. The roughly $4,870 a year you were not billed does not vanish, and each unreported year can carry its own $300 on top. Three quiet years is not a small correction when it lands all at once.
The form is the Change of Status, BFS-RPA-M-8-10.1. It is short. Filing it the month you move out is the whole defense.
Put the real number in the rent math
On a $1,500,000 Oahu home, the roughly $4,870 annual increase is about $406 a month. That has to come out of gross rent before you compare holding to selling, alongside management, vacancy, and maintenance.
One nuance worth knowing, because it is a better outcome than most owners expect: if you rent out part of the house and still live there yourself, that is a different filing. You file a Change of Status disclosing the rented square footage by September 30, and the exemption is adjusted rather than lost. The mistake is assuming that because you still live there, nothing needs reporting.
There is also a set of situations where the exemption can legitimately continue even though the owner is no longer living there day to day, including a move into a Hawaii-licensed care facility, a renovation, a sabbatical or temporary work assignment, and fire damage. Each has its own form, and each carries the same condition: the home cannot be rented, leased, or sold during the continuation. My post on the care home continuance covers that case in detail.
If you are holding anyway
File the Change of Status, then watch the assessment rather than just the bill. Notices go out in December and the appeal window closes January 15. A home drifting toward the million-dollar line matters more once no exemption is protecting it, because crossing that line changes the class rather than nudging the bill.
And if the honest answer turns out to be sell rather than hold, a tenant in place changes how a sale runs. My post on selling an Oahu rental with a tenant in place covers notice, access, and timing from the mainland.
One honest caveat. Reporting requirements, penalties, and rates are set by ordinance and by the City Council, rates change annually, and the exemption amounts are scheduled to rise to $140,000 and $180,000 on July 1, 2027. Confirm your property’s status, the current figures, and your own filing obligation directly with the Real Property Assessment Division, and take the rental income and deduction questions to your CPA.
Frequently Asked Questions
Does the exemption come off automatically when I move out?
No, and this is the single most expensive misunderstanding about it. The exemption continues on the roll until either the county disallows it or you file the report. Nothing is triggered by your move, your mainland address, or your tenant. The obligation to tell them is yours.
How would the county ever find out?
Eventually, through the ordinary ways: a change in recorded ownership, a general plan review, a complaint, or a later audit. The problem is that the longer it takes, the worse the outcome, because the unreported years do not disappear. They are reconciled together, with the penalty applied per year, which is how a quiet oversight turns into a four-figure or five-figure bill arriving at once.
What exactly is the deadline and the penalty?
Report within 30 days of the change, and in any case no later than November 1. A $300 penalty applies for failure to report by that date, and the RPAD materials state it applies for each year thereafter that the change goes unreported. Failing to report may also result in the levy of taxes that should have been assessed, plus additional penalties or interest. Confirm your own numbers with RPAD.
What if I rent out only part of the house and still live there?
That is a different filing and a better outcome. You file a Change of Status disclosing the rented square footage, on or before September 30, and the exemption is adjusted rather than lost outright. The thing you cannot do is leave it unreported because you are still living there.
Does it matter whether I rent long term or short term?
Yes, and the difference can be large. Honolulu classifies property by use, and short-term and transient rental uses fall into different, higher-rate classes than standard residential. If you are weighing a vacation rental against a long-term tenant, get the classification and current rate for each use from RPAD before you model the income.
Where to start
Renting out an Oahu home instead of selling is the right call for plenty of owners. It is a worse call than people think when the property sits above a million dollars, and it becomes an expensive one when the exemption is left on the roll for years because nobody knew they had to say anything.
If you want to understand how the exemption, the Residential A trigger, and the filing rules actually work before you decide, you can get my Home Exemption Guide here.
