Hawaii does not charge a retail sales tax on a boat. What you see on a dealer invoice is usually General Excise Tax passed through, plus the county surcharge. The published maximum pass-on with the surcharge is 4.712%. On a $40,000 Honolulu dealer boat that pass-on is $1,884.80. Add a new registration under 20 feet ($25) and a $20 title and the first-cost estimate is $1,929.80 before an optional $75 launch-ramp decal. A private casual sale of the same hull typically owes $0 GET or use tax, with DOBOR transfer and registration still due. The Department of Taxation sets GET and use tax. DLNR’s Division of Boating and Ocean Recreation sets title and registration.
How much is Hawaii boat tax and registration?
Shoppers who just bought a car on the mainland look for a state sales-tax line. Hawaii taxes businesses under GET. The number on your dealer buyer’s order is a pass-on of the business tax, not a separate retail sales tax. All four counties — Honolulu, Maui, Kauai, and Hawaii County — apply a 0.5% surcharge on 4% GET activities through 2030 on the Department of Taxation FAQ updated January 2026. The Department publishes 4.7120% as the maximum visible pass-on with that surcharge.
| Deal | GET / use | DOBOR (new 18 ft, titled) | First-cost stack |
|---|---|---|---|
| $40,000 Hawaii dealer, 4.712% pass-on | $1,884.80 | $45 | $1,929.80 |
| $40,000 private casual sale | $0 typical | $30 transfer + reg/title as due | DOBOR only |
| Mainland import, GET never paid | Use tax on landed value (G-26) | DOBOR when principally used in Hawaii | Ask DOTAX + DOBOR |
Example: Honolulu dealer, $40,000, 18-foot boat
Scenario: You buy from a Honolulu dealer. The invoice passes on GET plus the county surcharge at the published maximum 4.712%. The hull is 18 feet. You need a new title and a new registration. No ramp decal yet.
GET is the business’s tax. The $1,884.80 is what you may see passed through. DOTAX still governs the underlying GET; DOBOR governs the $45.
Example: Private casual sale of the same $40,000 hull
Scenario: You buy the same 18-foot boat from a neighbor in a casual private sale. The transfer would not have been GET if it happened as an in-state casual sale, so use tax generally does not apply.
Casual treatment is the usual private-party path, not a loophole you can paste onto a dealer. If the seller is in the business of selling boats, expect GET pass-on instead.
- Hawaii DOTAX, General Excise Tax FAQ (4%, 0.5% county surcharge, 4.712% pass-on)
- DLNR DOBOR, Vessel Registration & Titling
- Form G-26 instructions (casual sales exempt from use tax)
The tax rule: GET and use tax, not a sales tax
The Department of Taxation is clear: Hawaii does not have a sales tax. GET is a tax on business activities. A retailer may pass GET and the county surcharge through to the customer, up to the published maximum. Calling that line “4% sales tax” understates the surcharge and misnames the tax.
Use tax applies to imported tangible personal property when GET was not paid. Consumers file using Form G-26, a letter, or HITAX. Tax Facts 95-1 covers the basics, including credit for tax already paid to another state. Property acquired in a transaction that would not have been subject to GET if it occurred in Hawaii — including casual sales — is generally exempt from use tax. That is why a mainland private-party boat and a Hawaii neighbor sale often land in the same $0 GET/use bucket, while a mainland dealer purchase that never paid Hawaii GET can still trigger use tax on landed value.
Example: Flat 4% versus the published 4.712% pass-on
Scenario: Honolulu dealer, $40,000 boat. One quote uses “Hawaii 4% sales tax.” The invoice uses the published maximum pass-on.
The $284.80 is the surcharge math buyers miss when they copy a mainland sales-tax habit onto a Hawaii dealer deal.
Example: Import for use when GET was never paid
Scenario: You buy a boat on the mainland from a dealer, ship it to Honolulu, and will use it in Hawaii. Hawaii GET was not paid. This is a consumer import, not a casual in-state sale.
This page does not pick a use-tax percentage for you. File G-26 and let DOTAX bill the landed value. A casual private purchase is a different channel from a dealer import.
- DOTAX GET FAQ — no sales tax; GET on businesses; pass-on
- Tax Facts 95-1, Use Tax, tf2025-95-1.pdf
- G-26 instructions, g26ins.pdf
Dealer invoice, private casual sale, and trade-ins
A Hawaii dealer sale is a GET business activity. Expect the 4.712% maximum pass-on on the amount the dealer treats as gross proceeds, unless the invoice shows a different pass-through that still follows DOTAX rules. A private casual sale is typically outside GET and outside use tax. Transfer the vessel at DOBOR and pay the $30 ownership-transfer fee plus any title or registration still due.
GET is computed on the business’s gross proceeds, not on a mainland-style “sales price minus trade-in” statute quoted here. Whether a trade-in reduces the dollars passed through to you is controlled by the dealer invoice and DOTAX — this page does not subtract a trade-in from 4.712%. Ask the dealer to show GET on the cash difference if that is their practice, then confirm with DOTAX if the number matters to your budget.
Example: Maui dealer invoice without a trade-in subtraction on this page
Scenario: Maui dealer. Boat priced $40,000. You hope to trade a smaller boat. The invoice still lists $40,000 as the amount subject to pass-on. County surcharge is the same 0.5% as Honolulu.
Maui’s surcharge matches Honolulu, Kauai, and Hawaii County on the January 2026 FAQ. The island does not get a cheaper GET pass-on.
Example: Casual gift versus buying from a dealer’s lot
Scenario A: A family member gives you a 19-foot boat for no money. Scenario B: You buy a 19-foot boat from a Hawaii dealer for $22,000.
A gift with no consideration usually follows the casual path. Money, a dealer, or a business seller changes the tax channel.
- DOTAX GET FAQ (pass-on; GET on business gross proceeds)
- G-26 instructions (casual sales)
- DOBOR VRT (transfer $30)
County surcharge on all four counties
Hawaii’s local overlay is the county surcharge on GET, not a pile of city sales-tax add-ons. Honolulu, Kauai, Hawaii County, and Maui each apply 0.5% on 4% GET activities. Maui’s surcharge runs January 1, 2024 through December 31, 2030 on the DOTAX FAQ. The other counties also run through 2030 on that FAQ. The published maximum customer pass-on with the surcharge is 4.7120% for all four.
You still name the county because the seller’s GET activity is tied to where the business is. For a buyer comparing Honolulu and Maui dealer quotes on the same $40,000 hull, the published maximum pass-on is the same $1,884.80. What changes is the dealer, the DOBOR office, and whether you add a ramp decal — not a different county boat-tax percentage on this page.
| County | GET retail | County surcharge | Published max pass-on | Pass-on on $40,000 |
|---|---|---|---|---|
| Honolulu | 4% | 0.5% | 4.712% | $1,884.80 |
| Maui | 4% | 0.5% | 4.712% | $1,884.80 |
| Kauai | 4% | 0.5% | 4.712% | $1,884.80 |
| Hawaii County | 4% | 0.5% | 4.712% | $1,884.80 |
Example: Honolulu dealer versus Maui dealer, same price
Scenario: $40,000 boat, 18 feet, new title and registration, no ramp decal. One dealer is in Honolulu. One is on Maui.
If a Maui quote used 4% and a Honolulu quote used 4.712%, the gap is labeling, not a county discount. Align both invoices to the published pass-on.
Example: Kauai dealer on a $25,000 used boat
Scenario: Kauai dealer sells a used 22-foot boat for $25,000. Pass-on at 4.712%. New registration at 20 feet and over. New title. No ramp decal.
Length, not island, drives the $40 versus $25 registration line. The surcharge does not change at the county line on the current FAQ.
- DOTAX GET FAQ (county surcharge 0.5% Honolulu, Kauai, Hawaii, Maui; max pass-on 4.7120%)
DOBOR title, registration, transfer, and ramp fees
DLNR’s Division of Boating and Ocean Recreation titles and registers vessels principally used in Hawaii. Undocumented titling has been in place since 2021. Documented vessels still follow DOBOR registration rules; GET or use tax still follows how you acquired the boat, not the Coast Guard paper.
Published DOBOR amounts on the vessel registration and titling page (updated January 13, 2026) and HAR 13-241-25 include a $20 title, new registration of $25 under 20 feet or $40 at 20 feet and over, renewals of $20 or $35, a $30 ownership transfer, a $40 late title add-on, and a $75 launch-ramp decal. This page does not add undocumented lien or dealer documentation charges — those were not published as a statutory boat-tax figure in the research behind this guide.
| DOBOR item | Fee |
|---|---|
| Title | $20 |
| New registration, under 20 feet | $25 |
| New registration, 20 feet and over | $40 |
| Renewal, under 20 feet | $20 |
| Renewal, 20 feet and over | $35 |
| Ownership transfer | $30 |
| Late title (added after the deadline) | $40 |
| Launch ramp decal | $75 |
Example: New 18-foot registration versus new 25-foot registration
Scenario: Two Hawaii residents title and register new-to-them boats on time. One hull is 18 feet. The other is 25 feet. No ramp decal.
Those totals are not GET. Add dealer pass-on or use tax on top when the purchase channel requires it.
Example: Late title plus a ramp decal
Scenario: You title a boat after the deadline and buy a launch-ramp decal. Title is $20, late title is $40, ramp is $75. Registration depends on length; this hull is 18 feet, new registration $25.
Renewal in a later year for the same under-20-foot hull is $20, not another $25 new-registration fee. Keep the new and renewal columns separate.
- DOBOR Vessel Registration & Titling, dlnr.hawaii.gov/dobor/vrt
- HAR 13-241-25 (fee table cited on the DOBOR page)
Gifts, imports, and documented vessels
A casual gift typically follows the same GET/use path as a casual sale: $0 tax, with DOBOR transfer and registration still due. If the “gift” includes cash or a remaining loan, ask DOTAX whether the transfer is still casual. An estate sale to a third party is not automatically the gift path — ask DOTAX.
The research behind this page does not publish a Hawaii boat-specific military GET waiver. Service members should ask DOTAX how GET, use tax, and first use in Hawaii apply to their orders rather than assuming $0.
Coast Guard documentation does not by itself cancel GET, use tax, or DOBOR registration for a vessel principally used in Hawaii. How you bought the boat — Hawaii dealer, casual private, or import — still controls the tax channel. DOBOR’s undocumented titling program is separate paperwork from federal documentation.
Example: Gift on Oahu versus a paid private sale on Maui
Scenario A: No money, no assumed loan, 17-foot boat, Honolulu. Scenario B: Neighbor on Maui sells you the same size boat for $18,000 in a casual private sale.
Price on a true casual sale does not create GET. A dealer invoice at $18,000 would be a different channel: $18,000 × 0.04712 = $848.16 pass-on.
Example: Documented cruiser bought from a Hawaii dealer
Scenario: You buy a 36-foot Coast Guard–documented cruiser from a Honolulu dealer for $180,000. You will keep it in Hawaii. Pass-on at 4.712%. New registration at 20 feet and over. Title as DOBOR requires for your paperwork path.
Federal documentation is not a Hawaii GET holiday. Ask DOBOR which title lines apply to a documented hull; do not skip registration because the vessel has a Coast Guard number.
- G-26 instructions (casual / gift-style acquisitions)
- DOBOR VRT (registration of vessels principally used in Hawaii)
- DOTAX GET FAQ
How to calculate what you will pay
Pick the channel first. Hawaii dealer: apply the published maximum pass-on of 4.712% to the invoice amount the dealer treats as subject to GET, unless DOTAX or the invoice requires a different pass-through. Casual private: GET and use tax typically $0. Import for use: compute use tax on landed value with G-26; this page does not fill in that dollar. Then add the DOBOR lines that actually apply — new versus renewal, under 20 feet versus 20 and over, transfer, late title, ramp.
- Channel: Hawaii dealer, casual private, or import for use.
- County: all four currently share the 0.5% surcharge and 4.712% maximum pass-on.
- GET/use: 4.712% pass-on, $0 casual, or G-26 import.
- Length: under 20 feet or 20 and over.
- DOBOR: title $20, new $25 or $40, transfer $30, late $40, ramp $75, renewal $20 or $35.
Example: Walkthrough of a Hawaii County dealer closing
Scenario: Hawaii County (Big Island) dealer. $62,000, 28-foot boat. New title and registration. Ramp decal yes. On time.
No trade-in was netted here. If the dealer prints GET on a lower gross-proceeds figure, use that invoice line and confirm with DOTAX.
Example: Walkthrough of a casual transfer plus later renewal
Scenario: You buy a 19-foot boat from a neighbor (casual). You transfer and register now. Next year you only renew and skip the ramp decal.
Renewal is not a second GET event on a boat you already own.
- DOTAX GET FAQ; G-26 instructions; DOBOR fee table
What this page does not estimate
This page estimates the published GET pass-on on a Hawaii dealer invoice, the usual $0 GET/use on a casual private sale, and the DOBOR fee table above. It does not compute consumer use tax dollars on an import — that is G-26 and DOTAX. It does not net trade-ins off GET. It does not price marina slips, trailer tax, Coast Guard documentation fees, or dealer documentation charges that are not in the DOBOR table. It does not publish a military GET waiver.
Example: Import use tax is out of this page’s dollar column
Scenario: $50,000 boat bought from a California dealer, shipped to Honolulu, landed value still being finalized, $2,000 of other-state tax on the receipt.
Credit for other-state tax is real. The net Hawaii use-tax bill is not a number this page fills in without DOTAX’s landed-value rules.
Example: Trailer and ramp are different counters
Scenario: Honolulu dealer boat $40,000 plus a trailer on the same invoice, and you want a ramp decal.
Do not roll trailer tax into the 4.712% boat pass-on unless the invoice and DOTAX actually treat it that way. Ask before you compare “out-the-door” quotes.
Two complete buying examples
Complete example 1: Kaneohe dealer runabout
Scenario: Honolulu dealer, new 18-foot boat, $40,000, no ramp decal, on-time title and new registration.
If the invoice shows a flat 4% ($1,600), ask the dealer to reconcile to the published 4.712% maximum pass-on or to show why a lower pass-through is correct.
Complete example 2: Maui casual buy, then a Big Island dealer upgrade
Scenario A: Casual private 19-foot boat on Maui, $28,000, transfer and new title/registration, plus ramp. Scenario B: A year later, Hawaii County dealer 26-foot boat, $72,000, new title and registration, no ramp.
Maui did not waive GET in Scenario A because Maui is “cheaper.” Casual treatment did. Scenario B is GET because a dealer sold the boat, on any of the four islands.
Common questions
Does Hawaii charge boat sales tax?
No retail sales tax. Dealers pass on GET plus the county surcharge, up to 4.712%. Casual private sales typically owe $0 GET or use tax.
Is the rate 4%?
State GET retail is 4%. The county surcharge is 0.5% on that activity. The published maximum pass-on with surcharge is 4.712%.
Do I pay use tax on a Craigslist boat?
Usually not, if the sale is a casual private transfer that would not have been GET in Hawaii. G-26 instructions exempt that class of property from use tax. A business seller is a different facts pattern.
What does a Coast Guard document do to tax?
It does not by itself cancel GET, use tax, or DOBOR registration for a vessel principally used in Hawaii.
Is there a military GET waiver for boats?
No boat-specific military GET waiver is published in the official materials used for this page. Ask DOTAX about your orders.
What is the launch-ramp charge?
DOBOR lists a $75 launch-ramp decal. It is separate from title and registration.
Example: Renewal under 20 feet versus a new 22-foot registration
Scenario: You already own an 18-foot boat (renewal year). A friend titles a newly purchased 22-foot boat.
Length and new-versus-renewal change DOBOR. They do not change the 4.712% dealer pass-on.
Example: $12,500 personal watercraft at a Honolulu dealer
Scenario: New PWC, $12,500, under 20 feet, new title and registration, Honolulu dealer, 4.712% pass-on.
A PWC bought from a dealer is not a casual sale. The $0 casual rule does not apply.
Before you sign
- Read the GET line as a pass-on, not as mainland sales tax. Reconcile 4% quotes to 4.712% when the surcharge applies.
- Private party: budget DOBOR, not 4.712%, when the sale is truly casual.
- Imports: file G-26; do not copy the dealer pass-on onto landed value without DOTAX.
- Do not assume a trade-in cuts GET unless the invoice and DOTAX say so.
- Match DOBOR length at 20 feet; do not use the new-registration fee on a renewal.
- Add $75 only if you need the ramp decal.
- Documentation does not skip DOBOR or GET.
- Ask DOTAX before treating military orders or an estate sale as $0.
Official references
- DOTAX — General Excise Tax FAQ (4%; county 0.5%; pass-on 4.712%)
- Tax Facts 95-1 — Use Tax
- Form G-26 instructions (casual sales exempt from use tax)
- DLNR DOBOR — Vessel Registration & Titling (title, registration, transfer, late, ramp)
This page estimates Hawaii GET pass-on on dealer invoices, the usual casual-sale GET/use outcome, and published DOBOR fees. The Department of Taxation and DLNR Division of Boating and Ocean Recreation set the amounts you pay.