Hawaii Estate & Inheritance Tax

What the Hawaii Estate Data Reveals

Hawaii layers a state estate tax on top of the federal regime — exemption of $5,490,000 with rates from 10% to 20%, and spousal portability is not recognized. For estates above this state threshold but below the federal $13,990,000 exemption (2025), state law is the binding constraint, which is exactly the bracket most affluent households fall into. There is no separate inheritance tax, so beneficiaries receive their share without a second state-level deduction at distribution.

IRS Statistics of Income data show 52 federal estate tax returns filed by Hawaii residents in the most recent available year (filing year 2023), reporting $1.04 billion in combined gross estate value. Net federal estate tax paid totaled $0.07 billion that year. Across the multi-year IRS SOI series above, Hawaii averages roughly 34 taxable filings per year, with an effective federal rate on reported gross estates of about 6.4%.

Probate itself typically runs 9–18 months in Hawaii (roughly 14 months on average), with court filing fees of $35–$300. Attorney compensation is set by statute at approximately 4% of the estate, which is a material fixed cost even for uncontested estates. Hawaii does offer a simplified small-estate track for estates under $100,000, which most families use to bypass full formal probate. Because Hawaii has adopted the Uniform Probate Code (since 1996), procedures are broadly standardized across counties. As a common-law (separate property) state, Hawaii treats each spouse's holdings individually unless jointly titled, so titling choices drive what actually enters the probate estate.