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Selling investments in Hawaii: federal and state capital gains

Published · 2 min read

How federal and Hawaii state taxes apply to capital gains, with a worked example.

Key facts

PlaceHawaii
Sales taxState sales tax
Standard rate on file4%
Multiply net price by1.04
Tax share of a gross price3.85%
CurrencyUSD

Federal treatment

Long-term gains on assets held more than a year are taxed at 0%, 15% or 20% federally depending on income, plus a possible 3.8% net investment income tax. Short-term gains are taxed as ordinary income.

Worked example

Here is the calculation with sample figures. Change any number in the Hawaii Capital Gains Tax Calculator to run your own.

Worked example: Hawaii Capital Gains Tax Calculator
Purchase price$15,000.00
Sale price$22,500.00
Costs and fees$300.00
Tax rate (%)20%
Taxable gain$7,200.00
Tax$1,440.00
Net amount$20,760.00

State treatment

Most states tax capital gains as regular income. Check whether Hawaii offers any exclusion; the calculator lets you combine federal and state rates into one figure.

Quick reference at 4%

Common amounts in Hawaii, worked both ways: adding tax to a net price, and extracting it from a price that already includes tax.

AmountTax on net amountGross (net + tax)Net if amount includes tax
$10.00$0.40$10.40$9.62
$50.00$2.00$52.00$48.08
$100.00$4.00$104.00$96.15
$250.00$10.00$260.00$240.38
$500.00$20.00$520.00$480.77
$1,000.00$40.00$1,040.00$961.54
$5,000.00$200.00$5,200.00$4,807.69

How Hawaii compares

Standard rates on file for other states. A difference of a few points matters most on high-value purchases and on cross-border sales.

PlaceRate on fileCompared with 4%
District of Columbia6%higher
Florida6%higher
Georgia4%same
Idaho6%higher
Illinois6.25%higher
Indiana7%higher

Using the calculator step by step

  1. Open the Hawaii Capital Gains Tax Calculator.
  2. Type your figures into the numbered lines. Results update as you type.
  3. Check the rate field. It starts at 4%; change it if a reduced rate, local surcharge or exemption applies to you.
  4. Read the result on the receipt panel, and use the formula shown under it if you need to explain the figure to a client or colleague.

Key terms

Withholding
Tax deducted at source, by an employer or payer, before the money reaches you.
Reduced rate
A lower rate that applies to specific categories, often essentials such as food, medicine or books.
Deduction
An amount subtracted from taxable income. It saves tax equal to the deduction times your marginal rate.
Gross amount
The amount after tax is added, which is usually what a consumer pays.
Marginal rate
The rate applied to the next unit of income. It decides how much of a raise or a deduction you keep.

Common mistakes to avoid

Run your own numbers. The Hawaii Capital Gains Tax Calculator updates as you type and shows the formula it uses.

Frequently asked questions

What is the federal long-term capital gains rate?

0%, 15% or 20% depending on taxable income, plus possibly 3.8% NIIT.

Does Hawaii tax capital gains?

Many states do as ordinary income; confirm current Hawaii rules.

This article is general information for planning, not tax advice. Rates and rules change; confirm with your tax authority or a qualified adviser.

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