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Hawaii Out-the-Door Car Price Calculator

Get your real Hawaii total — a 4.5% General Excise Tax with one important twist: trade-ins don't reduce what you're taxed on.

Hawaii's Trade-In Rule Is Different From Almost Every Other State

Hawaii doesn't have a traditional vehicle sales tax. Instead, it applies its General Excise Tax (GET) — a 4% state rate plus a 0.5% county surcharge, for 4.5% combined in most counties — to vehicle sales. Technically the GET is levied on the business, not the buyer, but dealers pass it through to the purchase price, commonly at a slightly higher visible rate (up to about 4.712%) to cover the tax on the tax itself.

The detail that trips up the most buyers moving from other states: Hawaii does NOT reduce your taxable amount for a trade-in. In most states, trading in a vehicle lowers the price you're taxed on. In Hawaii, the GET applies to the full negotiated price of the new vehicle regardless of any trade-in credit you receive — only direct dealer discounts reduce the taxable amount, not trade-in value.

Hawaii also stands out for its registration fee, which is weight-based rather than flat or value-based, and commonly runs $300 to $400 per year for a standard passenger vehicle — notably higher than the vast majority of states, most of which charge well under $100 for base annual registration.

Hawaii Fee Breakdown

Fee Type	Amount	Notes
General Excise Tax (GET)	4.5% combined	4% state + 0.5% county surcharge in most counties; some dealers pass through up to ~4.712%
Title Fee	$10	One-time fee to transfer ownership
Registration Fee	~$300–$400/year	Weight-based; notably higher than most states
Dealer Doc Fee	No statutory cap	Amount not consistently published; confirm directly with your dealer

Why Trade-Ins Work Differently in Hawaii

State	Trade-In Reduces Taxable Amount?
Most states (CA, TX, FL, GA, etc.)	Yes — trade-in value is subtracted before tax is calculated
Hawaii	No — GET applies to the full price; only dealer discounts reduce the taxable base

If you're used to budgeting for a trade-in tax credit from another state, plan for Hawaii's GET to apply to the full purchase price instead.

Frequently Asked Questions

What is the car sales tax in Hawaii?

Hawaii applies its General Excise Tax (GET) to vehicle sales — 4% state plus a 0.5% county surcharge, for 4.5% combined in most counties. Some dealers pass through a slightly higher rate (up to ~4.712%) to cover the tax on the tax itself.

Does Hawaii tax trade-ins like other states?

No — and this is the most important thing to know if you're used to another state's rules. Hawaii's GET applies to the full purchase price of the new vehicle; your trade-in value does NOT reduce the taxable amount. Only direct dealer discounts do.

Why is Hawaii vehicle registration so much higher than other states?

Hawaii's registration fee is weight-based rather than flat, and commonly runs $300-$400 per year for a standard passenger vehicle — well above the sub-$100 base fees common in most states.

Is there a doc fee cap in Hawaii?

No confirmed statewide cap exists. Doc fee amounts aren't consistently published, so it's worth confirming the exact figure directly with your dealer before signing.

How much is the Hawaii title fee?

$10 for a standard title transfer, one of the lower title fees nationally.

See Your Exact Hawaii OTD Price

Enter your vehicle price, trade-in, and doc fee above for your precise total.

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