If you're buying a home in Hawaii and plan to live in it as your primary residence, the homestead exemption can save you thousands of dollars on property taxes every year. Understanding how to qualify and apply is essential for every new homeowner in Mililani and across Oahu in 2026.
What Is the Hawaii Homestead Exemption?
The homestead exemption reduces the assessed value of your primary residence for property tax purposes. In Honolulu County, which covers all of Oahu including Mililani, the basic homestead exemption is $100,000. This means if your home is assessed at $800,000, you'll only be taxed on $700,000, resulting in significant annual savings.
Who Qualifies for the Homestead Exemption?
To qualify, you must own the property and occupy it as your primary residence. You must file for the exemption with the City and County of Honolulu's Real Property Assessment Division. The deadline to file is September 30 for the following tax year. New homeowners should apply as soon as they close on their home to avoid missing the deadline.
How Much Can You Save?
The savings depend on your property's assessed value and the current tax rate. Residential properties with the homestead exemption are taxed at a lower rate than those without. For a typical Mililani home assessed at $800,000, the homestead exemption can save approximately $1,000 to $1,500 per year in property taxes. Over the life of homeownership, these savings add up to tens of thousands of dollars.
Additional Exemptions for Specific Groups
Hawaii offers additional property tax exemptions for certain groups. Homeowners aged 65 and older may qualify for increased exemptions. Disabled veterans may qualify for a full property tax exemption depending on their disability rating. Surviving spouses of veterans may also qualify for additional exemptions. Check with the Real Property Assessment Division for current eligibility requirements.
How to Apply for the Homestead Exemption
You can apply online through the City and County of Honolulu's Real Property Assessment Division website or in person at their office. You'll need your property identification number, proof of ownership, and identification showing your address matches the property. Your real estate agent can help you navigate this process during or after closing.
FREQUENTLY ASKED QUESTIONS
When should I apply for the homestead exemption? Apply as soon as you close on your home. The deadline is September 30 for the following tax year. If you miss the deadline, you won't receive the exemption until the next tax cycle.
Do military homeowners qualify for the homestead exemption? Yes, as long as Hawaii is your primary residence. Active-duty military stationed in Hawaii who purchase a home can apply for the homestead exemption. Disabled veterans may qualify for additional exemptions.
Do I need to reapply every year? No. Once approved, the homestead exemption remains in effect as long as you continue to use the property as your primary residence. You must notify the assessment office if you move or change your residency status.
Need help understanding property tax savings in Hawaii? The Kristy & Austin Home Group helps buyers maximize their savings through exemptions and smart homeownership strategies. Call or text us at (808) 829-6819 or visit kahomegroup.com for guidance.
