Hawaii Sales Tax Calculator

Hawaii imposes a general excise tax (GET) on businesses rather than a traditional sales tax on consumers. Hawaii's GET applies at multiple stages of production, so the visible rate is not directly comparable to mainland sales tax.

Default for Hawaii: 4.50%. Edit to use another rate.

Amount includes tax?
Subtotal$100.00
Sales tax at 4.50%$4.50
Total with tax (USD)$104.50

State-level estimate — the exact rate depends on your county, city, and special districts.

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Effective from 2026-01-01 · State-level rate (no ZIP snapshot for this state yet).

Hawaii sales tax rates

Hawaii sales tax rate breakdown
Rate typeRate
State rate4.00%
Average local rate0.50%
Average combined rate4.50%
Highest combined rate4.50%

What is taxable in Hawaii?

  • Prescription drugs and most groceries are exempt from GET, but services, rent, and wholesale transactions are generally within scope.
  • Counties may add a 0.5% county surcharge, which is why Oahu's rate differs from the neighbour islands.

HI sales tax calculator FAQ

What is the sales tax rate in Hawaii?
Hawaii's state-level rate is 4.00%. Local taxes bring the statewide average combined rate to about 4.50%, with the highest combined rate around 4.50%. Hawaii's GET applies at multiple stages of production, so the visible rate is not directly comparable to mainland sales tax.
Does Hawaii have local sales tax?
Counties may add a 0.5% county surcharge, which is why Oahu's rate differs from the neighbour islands.
What is exempt from sales tax in Hawaii?
Prescription drugs and most groceries are exempt from GET, but services, rent, and wholesale transactions are generally within scope.
How do I calculate sales tax in Hawaii?
Multiply the pre-tax price by the combined rate for your location. At the roughly 4.50% average combined rate, a $100.00 purchase would add about $4.50 in tax. Use the ZIP lookup above for the specific rate, and confirm with the Hawaii Department of Taxation.

Official source: Hawaii Department of Taxation.

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