Estate Tax

Estate Tax in Hawaii: Complete Guide 2026

Updated 2026-03-10

Data Notice: Figures, rates, and statistics cited in this article are based on the most recent available data at time of writing and may reflect projections or prior-year figures. Always verify current numbers with official sources before making financial, medical, or educational decisions.

Estate Tax in Hawaii: Complete Guide 2026

Tax information is for educational purposes only and does not constitute tax advice. Consult a licensed estate planning attorney for your specific situation.

Hawaii imposes a state estate tax with an exemption of approximately ~$5.49 million per person and rates ranging from ~10.00% to ~20.00%. Hawaii ties with Washington State for the highest top estate tax rate in the nation. Given Hawaii’s extraordinarily high real estate values — median home prices in Honolulu exceed ~$900,000 — the estate tax affects a significant number of Hawaii residents whose primary wealth is in their home and modest savings.

Hawaii Estate Tax Rates and Exemption (2026)

ParameterProjected 2026 Level
Estate tax exemption~$5.49 million
Lowest marginal rate~10.00%
Highest marginal rate~20.00%

Hawaii Estate Tax Rate Schedule

Taxable Estate (Above Exemption)Tax Rate
$0 — $500,000~10.00%
$500,001 — $1,500,000~11.00%
$1,500,001 — $2,500,000~11.50%
$2,500,001 — $3,500,000~12.00%
$3,500,001 — $4,500,000~13.00%
$4,500,001 — $5,500,000~14.00%
$5,500,001 — $6,500,000~15.00%
$6,500,001 — $7,500,000~16.00%
$7,500,001 — $8,500,000~18.00%
Over $8,500,000~20.00%

Estimated Tax by Estate Size

Estate ValueEstimated Hawaii Estate Tax
$5,490,000$0
$6,000,000~$51,000
$7,000,000~$160,000
$8,000,000~$275,000
$10,000,000~$635,000
$15,000,000~$1,635,000
$20,000,000~$2,635,000

Hawaii’s High Property Values and Estate Tax Impact

Hawaii’s real estate market creates a unique estate tax dynamic:

IslandMedian Home Price (Estimated 2026)
Oahu (Honolulu)~$950,000
Maui~$1,100,000
Hawaii (Big Island)~$550,000
Kauai~$1,000,000

A couple who purchased a home in Honolulu decades ago may now own a property worth ~$1.5 million or more, which — combined with retirement accounts, life insurance, and savings — can push the estate toward the ~$5.49 million threshold. Vacation home owners and those with properties on multiple islands face even higher exposure.

Portability in Hawaii

Hawaii recognizes portability of the estate tax exemption between spouses, similar to the federal system. The surviving spouse can claim the deceased spouse’s unused exemption, effectively doubling the couple’s exemption to approximately ~$10.98 million. To claim portability, an estate tax return must be filed for the first spouse to die.

What Is Included in the Hawaii Taxable Estate

Hawaii generally follows the federal gross estate definition:

  • Real property in Hawaii
  • Financial accounts and investment portfolios
  • Retirement accounts (IRAs, 401(k)s, pensions)
  • Life insurance proceeds (if the decedent owned the policy)
  • Business interests
  • Tangible personal property

Deductions include the unlimited marital deduction, charitable deduction, debts, and administrative expenses.

Non-residents who own Hawaii real property are subject to Hawaii estate tax on that property, prorated based on the ratio of Hawaii assets to the total estate.

Comparison to Other States

StateExemptionTop RatePortability?
Hawaii~$5.49 million~20.00%Yes
Washington~$2.193 million~20.00%No
Oregon~$1.00 million~16.00%No
New York~$6.94 million~16.00%No
Massachusetts~$2.00 million~16.00%No
Connecticut~$13.61 million~12.00%No

Hawaii is one of only two states (along with Maryland) that offers portability of the state estate tax exemption. This is a significant advantage for married couples and sets Hawaii apart from most other estate tax states.

Tips for Minimizing Hawaii Estate Tax

  1. File for portability. Hawaii’s portability provision is one of its most valuable features. Filing an estate tax return for the first spouse to die — even if no tax is owed — preserves the unused exemption for the surviving spouse.

  2. Consider a credit shelter trust. Even with portability, a credit shelter (bypass) trust can protect the first spouse’s exemption from being eroded by the surviving spouse’s spending or asset appreciation.

  3. Make lifetime gifts. Hawaii does not impose a state gift tax. Annual exclusion gifts of approximately ~$19,000 per recipient per year reduce the estate over time without any state tax consequence.

  4. Use irrevocable life insurance trusts. Removing life insurance from the taxable estate is especially important in Hawaii, where high property values already consume much of the exemption.

  5. Evaluate trust ownership of real estate. Transferring Hawaii real estate to an irrevocable trust can remove it from the taxable estate while allowing the family to retain use through trust terms.

  6. Plan for non-resident property ownership. If you are a non-resident who owns Hawaii vacation property, be aware that the property is subject to Hawaii estate tax. Consider holding the property in a trust or entity structure.

Key Takeaways

  • Hawaii’s estate tax exemption is approximately ~$5.49 million with rates from ~10.00% to ~20.00%
  • The ~20.00% top rate ties with Washington for the highest state estate tax rate in the nation
  • Hawaii is one of only two states that offers portability of the estate tax exemption between spouses
  • High real estate values across all Hawaiian islands push many moderate-wealth estates toward or above the exemption
  • Hawaii does not impose a gift tax, making lifetime gifting effective for estate reduction
  • Non-residents with Hawaii property are subject to the state estate tax on that property

Next Steps