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Hawaii's General Excise Tax (4%, plus county surcharge up to 0.5%) is passed on by dealers. Doc fees, rebates and add-ons may or may not be taxable depending on the state; not modeled.
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Hawaii car sales tax, at a glance: 4% state tax on vehicle purchases. Hawaii's General Excise Tax (4%, plus county surcharge up to 0.5%) is passed on by dealers. Trade-in credit: not allowed. A $30,000 car owes about $1,200 in state tax.
Base sales tax: Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026. Vehicle rules: Best-effort, checked October 12, 2026.
| Vehicle price | State tax, no trade | With $10,000 trade-in |
|---|---|---|
| $15,000 | $600 | $600 |
| $20,000 | $800 | $800 |
| $25,000 | $1,000 | $1,000 |
| $30,000 | $1,200 | $1,200 |
| $40,000 | $1,600 | $1,600 |
| $50,000 | $2,000 | $2,000 |
| $60,000 | $2,400 | $2,400 |
State-level tax only; add your county or city rate in the calculator above.
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4% at the state level. Hawaii's General Excise Tax (4%, plus county surcharge up to 0.5%) is passed on by dealers. Local taxes may add. On a $30,000 car with no trade-in that's about $1,200 in state tax.
No. Hawaii taxes the full vehicle price; a trade-in lowers what you pay or finance, not the tax. (Best-effort; verify with the state DMV or revenue department.)
Hawaii's statewide general sales tax is 4% (Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026); the rate applied to vehicles is 4%.
Yes. Hawaii's General Excise Tax is 4% plus a 0.5% county surcharge in every county (Kalawao is administered with Maui). It's a tax on the dealer; if passed on, the maximum visible rate is 4.712% because the pass-on is itself taxed, so a dealer's line item can be about 0.21% higher than the 4.5% shown here. The calculator fills the exact rate when you pick your county (Hawaii Department of Taxation, County Surcharge on General Excise and Use Tax (0.5% in Honolulu, Kauai, Hawaii and Maui counties), Surcharges in effect through December 31, 2030). Verify with your county clerk.
No. Those vary by dealer, county, vehicle weight and value. The auto loan calculator for this state lets you add a doc fee and title/registration.
No. Estimates from best-effort state rules, not tax or financial advice; confirm with your state agency or dealer.
Estimates, not financial advice. Taxes, insurance, PMI and fees vary by lender, county and city; confirm with your lender, dealer and state agency before acting.