Hawaii County, Hawaii · Tax credit
Solar Water Heater Tax Credit (County of Hawaiʻi Real Property Tax)
Run by County of Hawaiʻi Real Property Tax Division
Hawaiʻi County owners who installed a solar water heater after January 1, 2008 can claim a one-time credit of up to $1,000 against their real property tax.
Amounts
How much you get
A one-time tax credit per tax map key of up to $1,000 against the owner's real property tax liability, except for the minimum tax. Used in the tax year after approval; no carryover.
Eligibility
Do I qualify?
You need to meet all 5 of these.
Your home is in Hawaii County, Hawaii.
Owner of real property with a permitted single-family dwelling, ohana dwelling, farm dwelling, duplex or double-family dwelling unit.
Solar water heater installed after January 1, 2008 on a dwelling permitted before December 15, 2021. A replacement system qualifies if the previous owners were not already granted the credit.
Solar water heater only; photovoltaic systems do not qualify.
A copy of the County of Hawaiʻi Final Inspection form must come with the claim.
What to doGet the County of Hawaiʻi Final Inspection form from the Department of Public Works, Building Division.
Equipment
What equipment counts
Applying
How to apply
Follow these steps.
- Fill in the tax map key or parcel ID of your property.
- Complete the claim form and attach the County Final Inspection form.
- Deliver or mail it by September 30.
To the Real Property Tax Division: Hilo office, 101 Pauahi Street, Suite 4, Hilo HI 96720, or Kona office, 74-5044 Ane Keohokalole Hwy, Bldg. D, 2nd Floor, Kailua Kona HI 96740.
Stacking
Use it with
Your address
Next steps
Check that it covers your address. Then, if you want, ask for a contractor quote.
Is it available at your address?
Before anything else
Your quote request is in If a contractor we work with serves your ZIP, they can contact you. We take one request per person; contact us to change it.
Get an email if this program changes
We'll write if its amount, status or deadline changes. Nothing else.
FAQ
Questions
How much does Solar Water Heater Tax Credit (County of Hawaiʻi Real Property Tax) pay?
Up to $1,000.
Do renters qualify?
Owner of real property with a permitted single-family dwelling, ohana dwelling, farm dwelling, duplex or double-family dwelling unit.
Do I need approval before I buy?
A copy of the County of Hawaiʻi Final Inspection form must come with the claim. Get the County of Hawaiʻi Final Inspection form from the Department of Public Works, Building Division.
Is it still available?
Yes. It was open when we last checked, on October 28, 2026.
Plain words
Words used on this page
References
Sources
This page is built from these official pages, run by the program itself.
When one of these pages changes, we re-check this page against it.
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