Tools · Capital Gains Tax
Hawaii Capital Gains Tax Calculator (2026)
Estimate the tax on your capital gains in Hawaii for 2026. Enter your gain, holding period, and other income to see federal long- or short-term tax, the 3.8% Net Investment Income Tax, and Hawaii’s share, broken out line by line.
Hawaii capital gains tax calculator
How to read the rows below: the slice of your gain → the tax on that slice.
- Gain taxed at 0% (long-term)
- $15,550 → $0
- Gain taxed at 15% (long-term)
- $4,450 → −$668
- Federal long-term capital gains tax
- −$668
- Net Investment Income Tax (3.8%)
- $0
- Hawaii income tax on gain
- −$1,496
- Total capital gains tax
- $2,164
Hawaii taxes capital gains as ordinary income. Hawaii has 12 graduated brackets from 1.4% to 11%, the most brackets of any state and one of the highest top rates. Act 46 (2024) is widening brackets and raising the standard deduction in stages through 2031, cutting tax for most earners.
Note on 2026 figures: Under Act 46, the 2026 brackets carry over unchanged from 2025 (the next bracket step is 2027), and the standard deduction rises to $8,000 single / $16,000 married-jointly for 2026. Rates and thresholds shown match the Department of Taxation 2025 schedule; the standalone 2026 rate schedule had not been posted at build, so figures are marked provisional.
Federal: IRS Revenue Procedure 2025-32 (IR-2025-103) · Social Security Administration. State: Hawaii Department of Taxation.
Estimate for 2026. Long-term gains are stacked on top of your other taxable income across the 0/15/20% federal breakpoints; short-term gains are taxed as ordinary income. The 3.8% Net Investment Income Tax, an extra federal surtax on investment income, applies once your income clears the threshold. Excludes state credits, the alternative minimum tax, and loss carryovers. This is general information, not tax advice.
How capital gains tax works in Hawaii
Long-term gains (assets held more than a year) get the federal 0/15/20% rates — but the rate depends on where the gain lands once it is stacked on top of your other taxable income, so part of a gain can be taxed at 0% and the rest at 15%. Short-term gains are taxed as ordinary income. On top of that, the 3.8% Net Investment Income Tax applies once your income clears $200,000 (single) or $250,000 (married-jointly).
Hawaii taxes capital gains as ordinary income, at the same rate as your wages. Hawaii has 12 graduated brackets from 1.4% to 11%, the most brackets of any state and one of the highest top rates. Act 46 (2024) is widening brackets and raising the standard deduction in stages through 2031, cutting tax for most earners.
This is an annual-bracket estimate, not your final return. It excludes the alternative minimum tax, loss carryovers, and state credits. It is general information, not tax advice. Federal figures: IRS Revenue Procedure 2025-32 (IR-2025-103) · Social Security Administration.
Capital gains calculators for other states
Same 2026 engine, each with its own state rules.