Hawaii has the most progressive state income tax in the United States — twelve brackets running from 1.4% up to 11%, with a low standard deduction. This free calculator applies all twelve brackets and the standard deduction to estimate your Hawaii income tax.
How it works
Hawaii income tax is computed across many narrow bands:
- Start from your Hawaii income (federal AGI is a close approximation for most wage earners).
- Subtract the standard deduction — about
$2,200single or$4,400married filing jointly for 2024. - Apply the twelve brackets (1.4%, 3.2%, 5.5%, 6.4%, 6.8%, 7.2%, 7.6%, 7.9%, 8.25%, 9%, 10%, 11%). Each rate applies only to the income inside its band.
The dense bracket structure means your marginal rate rises smoothly, while your effective rate stays below it.
Example
A single filer with $80,000 income takes the $2,200 deduction, leaving $77,800 taxable. Income is taxed across the lower brackets up through 8.25%, producing roughly $5,400 of Hawaii tax — an effective rate near 6.8%, while the marginal rate at that income is 8.25%.
Notes
This estimate covers Hawaii state income tax only — not federal tax, FICA, the general excise tax, or refundable credits. Bracket thresholds and the standard deduction are set in statute; use the figures for the year you are filing. Hawaii’s low standard deduction means more of your income is exposed to tax than in most states.