Honolulu’s Renewable Energy Tax Exemption
Power Your Home Without Raising Your Property Taxes
Installing solar panels is already one of the most effective ways to lower electricity costs in Hawaiʻi. What many Oʻahu homeowners don’t realize is that Honolulu offers a valuable property tax benefit that can make the investment even more attractive.
A Significant Financial Advantage for Homeowners
Normally, home improvements that increase a property’s value can result in higher real property taxes. However, Honolulu provides a renewable energy property tax exemption that excludes qualifying renewable energy improvements from taxable property value.
This means homeowners can invest in solar energy and battery storage systems without being penalized by increased property tax assessments related to those improvements.
How the Exemption Works
Under Honolulu’s renewable energy exemption program, qualifying renewable energy improvements may be exempt from real property taxes when a timely application is approved by the City and County of Honolulu. The exemption applies to eligible renewable energy improvements used for the production or storage of renewable energy.
For homeowners, this can provide long-term savings in addition to:
- 1 Lower monthly electric bills
- 2 Greater energy independence
- 3 Protection against rising utility costs
- 4 Increased resilience through battery storage systems
Important Filing Deadline
Property owners seeking the exemption must submit the appropriate application to the Honolulu Real Property Assessment Division by September 30 preceding the tax year for which the exemption is being claimed.
Because eligibility requirements and forms may change over time, homeowners should verify current requirements directly with the City before applying.
Our goal is to provide Hawaii homeowners with clear, accurate, and up-to-date information so you can make informed decisions with confidence. As additional guidance is released by the State of Hawaii, we’ll continue updating this article to reflect the latest information available.
Why It Matters
Hawaiʻi has some of the highest electricity costs in the nation, making solar energy a smart long-term investment. When combined with Honolulu’s renewable energy property tax exemption, homeowners can enjoy the benefits of clean energy while minimizing the tax impact of their investment.
For many Oʻahu residents, it’s an opportunity to reduce energy expenses, increase home efficiency, and support a more sustainable future.
Learn More
For official program details, eligibility requirements, and application forms, visit the Honolulu Real Property Assessment Division’s website below.
