Kentucky boat tax is the statewide 6% sales and use tax. There is no general local sales-tax overlay on that 6%. A $30,000 dealer boat is $1,800 of sales tax, collected by the dealer, with proof required when you title. Private sales are the fork people get wrong: an occasional sale may be exempt if the county clerk accepts Form 51A280 Code U1, and that file is subject to Department of Revenue review. A $10,000 private occasional sale can be $0 use tax if U1 is accepted. A $5,000 used private boat on the taxable path is $300 if it is not occasional-exempt. Confirm the form codes with the county clerk, then use the Kentucky DRIVE boats page linked below.
- How much is Kentucky boat sales tax and registration?
- The Kentucky tax rule
- Trade-in, dealer vs private
- No local overlay
- Title and registration
- Gifts, inheritance, out-of-state, and documented vessels
- How to calculate Kentucky boat tax
- What this page does not estimate
- Two complete buying examples
- FAQ
- Before you sign
- Complete reference list
Title with the right form codes. Kentucky imposes the 6% tax in KRS 139.200. The county clerk’s collection at titling and first registration is KRS 139.778. Form 51A280 is the out-of-state purchase use-tax affidavit, including occasional-sale Code U1 and credit codes U8/UC. Titling and registration steps are on Kentucky DRIVE — Boats. Kentucky Department of Fish and Wildlife Resources publishes boating rules beside that title path.
How much is Kentucky boat sales tax and registration?
On a taxable dealer purchase, pay 6% of the taxable purchase price. A $30,000 dealer boat is $1,800. There is no general local boat surtax on top of that 6%. Private occasional sales may be $0 use tax if the clerk accepts Form 51A280 Code U1. If the private sale is not occasional-exempt, 6% still applies — $300 on a $5,000 taxable private boat. Out-of-state buyers credit tax already paid: on a $25,000 boat, Kentucky 6% is $1,500; with $1,000 paid to another state, Kentucky due is $500. County clerk title and Kentucky Transportation Cabinet numbering fees are not listed as a frozen dollar here. Ask the clerk. The clerk collects applicable use tax on out-of-state purchases at titling and retains a 3% collection fee from that tax under KRS 139.778.
Kentucky is simpler on rate and harder on channel. The rate really is 6% statewide. The channel is dealer collection, occasional-sale U1, taxable private, or out-of-state credit on 51A280. People who say “Kentucky has no boat tax on private sales” are skipping the “may” and the DOR review. People who say “every private boat is 6%” are skipping Code U1. Both myths cost money or get a title rejected.
Motorboats and vessels as defined in KRS 235.010 are the titling-and-first-registration collection set under KRS 139.778. If you are titling or doing a first Kentucky registration, the clerk is in the tax file. If a Kentucky dealer already collected 6% and you have proof, the clerk’s use-tax line can be $0.
Example 1: $30,000 dealer boat
Scenario: Kentucky dealer sale. Taxable purchase price $30,000. No trade-in on the invoice. You title at the county clerk with dealer tax proof.
$1,800 is 6% of $30,000. Keep the dealer proof in the title packet.
Example 2: $10,000 private occasional sale with Code U1
Scenario: Private seller, not in the boat business. County clerk uses Form 51A280 Code U1 for an occasional sale under KRS 139.010. Department of Revenue can still review the file.
Do not budget $0 until the clerk accepts U1. Do not budget $600 as a certainty either. The form code is the switch.
- KRS 139.200 — 6% sales tax imposition
- Form 51A280 — occasional sale Code U1; out-of-state use tax affidavit
- Kentucky DRIVE — Boats — title and registration procedures
The Kentucky tax rule
Kentucky charges state sales tax and complementary use tax at 6% of the taxable purchase price. Sales tax is what a Kentucky dealer collects. Use tax is what the county clerk collects at titling or first registration when that 6% was not already paid to a Kentucky dealer — including many out-of-state purchases. Credit for tax paid to a dealer or to another state comes with a receipt. Form 51A280 is how the clerk codes that story: U1 for occasional sale, U8/UC for credit.
The tax base is sale price. A trade-in reduces taxable consideration under Kentucky’s general sales-tax measure rules. Confirm the reduced base on the dealer invoice. This page does not add a boat-only trade formula beyond that general rule. If the invoice still taxes the full price, the clerk will follow the invoice unless the dealer corrects it.
Example 1: Proof already paid to a Kentucky dealer
Scenario: $15,000 boat. Dealer collected 6% ($900). You title with that proof.
The clerk’s job on this file is to see that Kentucky 6% was paid, not to collect it twice.
Example 2: Out-of-state $25,000 boat with $1,000 tax already paid
Scenario: You bought outside Kentucky. The other state receipt shows $1,000 tax. Kentucky 6% on $25,000 is $1,500. Form 51A280 credit codes U8/UC.
$500 is the official remaining Kentucky tax on that example. Bring the receipt. The clerk codes U8/UC. You do not get a refund of the extra $300 if the other state charged more than Kentucky’s $1,500.
- KRS 139.200 — 6% imposition
- KRS 139.778 — county clerk collects use tax on boats at title or first registration
- Form 51A280 — codes U8/UC for tax previously paid
Trade-in, dealer vs private
A Kentucky dealer collects 6% on the taxable consideration and you carry proof to the title desk. A private seller usually does not collect. The clerk then looks at whether the sale is an occasional sale under KRS 139.010. If it is, Code U1 may zero the use tax, subject to DOR review. If it is not, 6% applies as if you were on the taxable private path — $300 on $5,000.
Trade-in is a dealer-invoice issue. Kentucky’s general sales-tax measure reduces taxable consideration when a trade is part of the sale. Ask the dealer to show the boat price, the trade allowance, and the tax on the difference. Do not assume a special watercraft-only trade statute beyond that general rule.
Example 1: Dealer invoice with a trade-in
Scenario: Boat priced $30,000. Dealer shows an $8,000 like-kind trade. Taxable consideration on the invoice is $22,000. Confirm those lines before you sign.
The $1,320 only holds if the invoice actually reduces the measure by the trade. If the dealer taxes $30,000, you pay $1,800 unless the invoice is corrected.
Example 2: $5,000 used private boat on the taxable path
Scenario: Private sale. The clerk does not accept U1, or the sale is not an occasional sale. Taxable path applies.
$300 is the official taxable-private illustration. If U1 had been accepted on a different $10,000 file, use tax would be $0. Same state, two private outcomes, two form results.
- KRS 139.010 — occasional sale (Code U1 on 51A280)
- KRS 139.200 — 6% on taxable purchase price
- Form 51A280 — U1, U8, UC
No local overlay
Kentucky does not add a general local sales tax on top of the 6% state rate for boats. Jefferson County and a rural dock county use the same 6% state tax. What changes by county is the clerk’s counter, not a parish-style local percentage. Do not add a 1% or 2% “boat local” the way some states stack local option. The variation that matters in Kentucky is Form 51A280, not geography.
| Charge | Kentucky boat treatment |
|---|---|
| State sales / use tax | 6% of taxable purchase price |
| Local sales-tax add-on | None as a general boat overlay |
| Clerk collection fee (KRS 139.778) | Clerk retains 3% of use tax collected — not a second 3% on top of your 6% |
Example 1: $30,000 in two different Kentucky counties
Scenario: Same dealer price. Two county clerks.
The 6% does not change when you cross a county line. Title fees might. Those title dollars are quoted by the clerk, not on this page.
Example 2: Why a “local boat tax” quote is the wrong Kentucky math
Scenario: Someone tells you to add 1% local on a $30,000 boat.
Pay 6%. Put extra money toward the clerk’s actual title fee when they quote it, not toward a local sales tax Kentucky does not stack on boats.
- KRS 139.200 — statewide 6% imposition
- KRS 139.778 — clerk collection of use tax; 3% collection fee retained by the clerk
Title and registration
You title and register through the county clerk and Kentucky Transportation Cabinet. Kentucky DRIVE’s boats page is the procedure guide. Kentucky Department of Fish and Wildlife Resources covers on-the-water rules. KRS 139.778 puts the county clerk in the use-tax job at titling or first registration, especially on out-of-state purchases. The clerk retains 3% of the use tax collected as a collection fee. That 3% is the clerk’s cut of the tax, not an extra 3 percentage points on your purchase price.
Documented boats follow different registration steps on the DRIVE guidance. Use tax at titling still applies under KRS 139.778 when the boat is offered for titling or first registration. Documentation is not a 6% holiday.
Statewide title and registration dollar amounts are not published in the boat-tax materials used here. Ask the county clerk. Do not copy another state’s $15 title fee onto a Kentucky boat. Bring a photo ID, the bill of sale or dealer invoice, any out-of-state title, and Form 51A280 already filled with the code the clerk told you to use. If the boat is financed, bring the lienholder’s legal name so the title can show the lien. The 6% tax math on this page does not change when a lien is recorded; only the title paperwork does.
Example 1: Out-of-state purchase titled in Kentucky
Scenario: $25,000 boat. $1,000 tax paid elsewhere. Clerk collects remaining use tax at title.
You write a check that covers remaining use tax plus whatever title and registration the clerk lists. The 3% is how the clerk is paid for collecting that use tax under KRS 139.778.
Example 2: Documented vessel offered for Kentucky title
Scenario: USCG documented boat. You still go through titling or first registration. DRIVE says documented registration steps differ. KRS 139.778 still applies if the boat is offered for titling or first registration.
Ask the clerk how they title a documented hull. Do not skip Form 51A280 because the boat has a federal document.
- Kentucky DRIVE — Boats — title and registration, including documented vessels
- KRS 139.778 — clerk collects use tax; 3% collection fee
- KRS 235.010 — motorboat / vessel definitions tied to the collection statute
Gifts, inheritance, out-of-state, and documented vessels
Gifts and inheritances map to exemption paths on Form 51A280 and KRS 139 when those paths exist. This page does not auto-zero a gift. Bring the affidavit or court papers and let the clerk code the form. Title and registration fees can still apply. Military members do not get an automatic boat sales-tax wipe in the sources reviewed. Verify any KRS 139 exemption with the Department of Revenue. Do not budget $0 because you have orders.
Out-of-state credit is the cleanest special path: remaining Kentucky tax is Kentucky 6% minus tax already paid, not below zero. Codes U8/UC. Documented vessels still face use tax at titling when KRS 139.778 applies.
Example 1: Gift or heir file
Scenario: A boat passes by gift or by estate paperwork. No dealer invoice.
The clerk and DOR read the documents. A family signature is not, by itself, Code U1, and U1 is an occasional sale code. Do not force a gift onto U1 unless the clerk says that is the right box.
Example 2: New resident with out-of-state tax proof
Scenario: You move to Kentucky with a $25,000 boat and a $1,000 tax receipt from the old state.
The receipt is worth $1,000 off Kentucky’s $1,500. Without it, you pay the full $1,500.
- Form 51A280 — U1 occasional sale; U8/UC credit
- KRS 139 generally — exemption paths the clerk may apply
- Kentucky DRIVE — Boats — documented vessel registration
How to calculate Kentucky boat tax
- Start with sale price. Subtract a trade-in only if the invoice reduces taxable consideration under general sales-tax rules.
- If a Kentucky dealer collected 6% and you have proof, clerk use tax is $0.
- If the sale is private, ask the clerk about Form 51A280 Code U1. If U1 is accepted, use tax is $0 on that occasional sale. If not, multiply by 6%.
- If the boat came from another state, Kentucky tax is 6% minus tax paid elsewhere, not below zero (U8/UC).
- There is no local percentage to add.
- Ask the clerk for title and registration dollars. Those are separate from the 6%.
Walkthrough 1: $30,000 dealer boat, no trade
Scenario: Resident dealer purchase. Proof to the clerk.
$30,000 × 0.06 = $1,800. That is the primary dealer illustration.
Walkthrough 2: $25,000 out-of-state, $1,000 already paid
Scenario: First Kentucky title. Form 51A280 with credit codes.
$1,500 − $1,000 = $500. Codes U8/UC. Keep the other state’s receipt with the affidavit.
- KRS 139.200 — 6%
- Form 51A280 — U1, U8, UC
- KRS 139.778 — clerk collection at title / first registration
What this page does not estimate
County clerk title fees, Kentucky Transportation Cabinet numbering fees, and Kentucky Department of Fish and Wildlife Resources stamps or licenses are not priced here. Ask those offices. Gift and military tax are not auto-zeroed. A boat tax cap is not published in these Kentucky sources. Local boat surtax is not added. Late-title penalties are not assigned a dollar unless the clerk quotes one. Lien fees are not listed.
Example 1: Title fee at the clerk
Scenario: You know the $1,800 dealer tax. You still need a Kentucky title.
Budget the $1,800 as tax. Add title only after the clerk’s schedule.
Example 2: Military orders without a KRS 139 boat wipe
Scenario: You have orders and a $30,000 taxable dealer boat.
Do not subtract $1,800 because of orders unless DOR applies a KRS 139 exemption to that file.
Two complete buying examples
Complete example 1: Kentucky dealer, $30,000, titled in-county
Scenario: Resident. No trade. Dealer collects tax. Clerk sees proof.
This is the straightforward Kentucky dealer file. Rate is 6%. Geography does not change it.
Complete example 2: Private $10,000 occasional sale vs taxable $5,000
Scenario: Two private boats, two form outcomes.
Same state, two private results. The form code is the difference. Do not pick a side in advance of the clerk.
FAQ
Does Kentucky add county boat tax on top of 6%?
No general local sales-tax add-on applies to the 6% state rate for boats. The clerk may still collect title and registration fees.
Are private boat sales tax-free?
They may be, if the clerk accepts occasional-sale Code U1 on Form 51A280. Department of Revenue can review that. If U1 is not accepted, 6% applies.
I already paid tax to a Kentucky dealer. Do I pay at the clerk?
Not the 6% again, if you have proof. A $15,000 dealer boat with proof is $0 at the clerk for use tax.
I paid tax in another state. What do I owe Kentucky?
Kentucky 6% minus tax paid, not below zero. On $25,000 with $1,000 already paid, Kentucky due is $500. Use Form 51A280 codes U8/UC.
Does a trade-in reduce Kentucky boat tax?
Under general sales-tax measure rules, a trade-in reduces taxable consideration. Confirm it on the dealer invoice. This page does not add a special boat-only formula.
Does Coast Guard documentation skip the 6%?
No. Registration steps differ on DRIVE. Use tax at titling still follows KRS 139.778 when applicable.
What is the clerk’s 3% collection fee?
When the clerk collects use tax under KRS 139.778, the clerk retains 3% of that tax as a collection fee. It is not a second 3% stacked on the boat price.
FAQ example 1: Assuming every private sale is $0
Scenario: $5,000 boat. You budget nothing. The clerk does not accept U1.
Wait for the form result before you spend the $300 on something else.
FAQ example 2: Assuming every private sale is 6%
Scenario: $10,000 occasional sale. Clerk accepts U1.
U1 is real when the clerk accepts it. Bring the form. Do not skip it because “boats are always taxed.”
Before you sign
On a dealer purchase, confirm 6% on the taxable consideration and keep the proof. On a private purchase, ask the county clerk about Form 51A280 Code U1 before you decide the tax is $0 or 6%. On an out-of-state boat, bring the other state’s receipt for U8/UC. Do not add a local sales-tax overlay. Do not treat documentation as a tax holiday. Ask the clerk for title and registration dollars. The tax dollars this page commits to are $1,800 on a $30,000 dealer boat, $0 use tax on a $10,000 occasional sale when U1 is accepted, $300 on a $5,000 taxable private boat, $0 at the clerk when $15,000 of Kentucky dealer tax is already proved, and $500 remaining on a $25,000 out-of-state boat after a $1,000 credit.
Complete reference list
- KRS 139.200 — 6% sales tax imposition
- KRS 139.778 — county clerk collects use tax on boats at title or first registration; 3% collection fee
- Kentucky Form 51A280 — out-of-state use-tax affidavit; occasional sale Code U1; credit codes U8/UC
- Kentucky DRIVE — Boats — title and registration procedures, including documented vessels
This page estimates Kentucky boat sales and use tax from official Department of Revenue and county clerk rules. The Kentucky Department of Revenue and the county clerk set the amount you pay.