Sales tax by state
Hawaii sales tax calculator
Hawaii's state rate is 4.00%, and the average combined rate with local taxes is 4.50%. Use the calculator for a quick estimate, then verify your exact city rate before collecting tax.
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Enter an amount to see the sales tax.
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This is the state rate plus the population-weighted average local rate. Your actual rate depends on the specific address — city and special-district taxes vary within every state. Before collecting tax from customers, verify the exact rate for the delivery address with the state’s Department of Revenue or an address-level lookup.
About this rate
Sales tax in Hawaii, explained
Hawaii's sales tax starts with a 4.00% state rate, and most localities add their own on top — averaging about 0.50% for a combined 4.50%, among the 6th-lowest taxing jurisdictions in the country. Honolulu and Hilo have their own local rates, so your exact figure depends on the address; across the state, local add-ons run as high as 0.50%.
Hawaii also taxes many services and business-to-business transactions that other states leave untaxed, so its sales tax reaches more of what you buy than the headline rate suggests. Two purchases of the same size can carry very different tax here depending on what they are.
For context, the highest combined rate in the country is Louisiana's 10.13%, and five states charge no sales tax at all — so Hawaii's 4.50% sits toward the lower end. Just remember the figure here is a state average: the rate in Honolulu very likely differs from the rate two towns over. If you are collecting sales tax from customers, confirm the exact rate for each delivery address with the Hawaii Department of Revenue before you rely on it.
Compare with states at a similar rate: Wyoming (5.39%), Maine (5.50%), Wisconsin (5.72%). Or see all 50 states and DC.
Questions
Hawaii sales tax FAQ
Collecting sales tax in Hawaii?
Nexus, registration, and which addresses you must charge are where sales tax gets complicated. Book a free consultation.
Important disclaimer Read Hide
This calculator is provided for general educational and informational purposes only. It is not tax, legal, accounting, or financial advice, and must not be relied upon as such.
No professional relationship. Using this calculator does not create a CPA-client, advisory, or any professional relationship between you and IMAAR Associates CPA, PLLC. A professional relationship is established only through a signed engagement letter.
This calculator shows a state rate plus the population-weighted AVERAGE local rate — it is not the rate for any specific address. Actual sales tax is determined by the delivery address and can include city, county, and special-district taxes that differ from the state average. If you collect sales tax from customers, you are responsible for charging the correct address-level rate; do not rely on this average for tax you remit to any taxing authority. This tool is general educational information, not tax advice, and using it creates no client relationship. Verify the exact rate with the state’s Department of Revenue or an address-level lookup. IMAAR Associates CPA, PLLC disclaims all liability for reliance on these estimates.
This disclaimer is AI-drafted and pending attorney review.
For advice you can rely on, book a free consultation with a Washington State Licensed CPA.
Rates: Tax Foundation, State & Local Sales Tax Rates, Midyear 2026 (as of July 1, 2026). Data effective: Rates as of July 1, 2026. Last reviewed: August 3, 2026. Sales tax rates change frequently — we review this quarterly against the Tax Foundation dataset. Confirm current rates before relying on them. All calculations run in your browser; nothing you enter is collected or stored.