Quick answer: a flat 7.25% for long-term gains — often lower than Hawaii's own ordinary income brackets, which run up to 11%. See the full cost picture in the Hawaii probate real estate sale calculator.
One of the few states with an actual capital gains discount
An inherited house almost always qualifies
A gain on a promptly sold inherited house is typically treated as long-term, since inherited property automatically qualifies for long-term treatment regardless of how long the estate or heir actually holds it after the date of death.
A rate under legislative pressure, but still current law
The Hawaii legislature has repeatedly introduced bills to raise the rate toward 9%, arguing the current 7.25% rate primarily benefits wealthy individuals and nonresident real estate investors — but as of this review, the 7.25% rate remains current law.
A separate question from the state estate tax
Hawaii's separate state estate tax applies only above roughly $5.49 million (2026) — a distinct calculation from the income tax on the sale's gain, and one that affects far fewer estates.
A local probate attorney can review your estate — many offer a free consultation.
The flat 7.25% long-term rate applies identically whether the sale closes in the First Circuit (Honolulu), Second Circuit (Maui), Third Circuit (Hawaii Island), or Fifth Circuit (Kauai).