Hawaii Sales Tax Calculator
The Hawaii statewide sales tax rate is 4%. This estimate uses that state rate only. City and county tax is extra, so the amount at the register can be higher.
Hawaii state rate 4%
Price
Total
$104.00
Net
$100.00
Sales tax
$4.00
Formula
Statewide sales tax on a price is the price times 4 divided by 100. This page does not add a city or county rate on top.
City and county tax is extra, so the amount at the register can be higher.
Removing sales tax uses the same statewide rate. Divide the tax-inclusive price by 1 plus the rate. Local tax is still not part of that figure.
Add: tax = amount × rate / 100. Remove: net = amount / (1 + rate / 100).
- amount The price you type.
- rate The Hawaii statewide rate, 4%. It is fixed on this page.
Worked example
A $100.00 price at the 4% Hawaii statewide rate adds $4.00 of tax. The total is $104.00.
City and county tax is extra, so the amount at the register can be higher.
FAQ
How much is Hawaii sales tax on $100?
At the 4% statewide rate, sales tax on $100 is $4.00. City and county tax is extra, so the amount at the register can be higher.
Does the Hawaii calculator include city and county tax?
No. The rate is the statewide rate only. The amount at the register can be higher where a city or county adds its own tax.
Is this the rate charged at the register?
Not always. This is an estimate of the statewide rate. Local tax and product exemptions can change the amount you pay.
Related calculators
Rate checked January 1, 2026 against Tax Foundation.
Hawaii’s statewide figure is the general excise tax, not a conventional sales tax.