Boat LLC in Wisconsin (2026): 5% Tax, No Cap & DNR Rules

Wisconsin puts a boat within reach of almost everyone in the state — 15,000 lakes by the DNR’s count, plus Lake Michigan harbors from Kenosha to the Door Peninsula, Green Bay, the Apostle Islands, and the Mississippi backwaters. If you keep a boat here, two numbers frame everything: the 5% state sales/use tax plus a local add-on, which has no cap and is charged at the rate where the boat is primarily kept, and a three-year DNR registration that scales from $22 to $100 with length. And the single most important fact about both: they follow the boat, not the LLC that owns it. An LLC is worth forming for liability, co-ownership, and privacy — not to make the tax disappear.

Key takeaways

Wisconsin charges 5% state sales/use tax on a boat’s full price with no cap, plus the county/city tax where the boat is primarily kept — 0.5% in most counties, 0.9% in Milwaukee County, and 7.9% combined inside the city of Milwaukee (DOR Fact Sheet 2113).
Private-party sales are not tax-free. The buyer pays the tax to the DNR at registration and titling — the counter is the collection point.
Boats are taxed more strictly than cars: the nonresident removal exemption that covers motor vehicles and aircraft does not apply to boats — possession in Wisconsin means the 5% state tax, even if the boat leaves immediately.
Registration is $22–$100 for three years by length (plus a $5 title on motorized boats and sailboats 16 feet and over), every registration expires March 31 of its third year, and there is no annual property tax on the hull — pleasure watercraft are exempt by statute (s. 70.111(3)), and 2023 Act 12 exempted all remaining personal property from the January 1, 2024 assessment.
An LLC helps with liability, co-ownership, and privacy on Lake Michigan and the inland lakes alike — it never lowers the tax, no matter where you form it.

Wisconsin boat LLC at a glance

Sales/use tax: 5% + local; no cap — rate set where the boat is kept
3-year registration: $22–$100; by length, plus a $5 title
Renewal date: March 31; of the 3rd year — statewide
Property tax on boats: $0/yr; pleasure watercraft exempt by statute

The 5% is triggered by the purchase and by registering and keeping the boat in Wisconsin — not by where the LLC is formed. Form the LLC in Wisconsin itself, or through a live FilingDesk state (Wyoming $199, Delaware $209, Florida $224 all-in), and the bill on the DNR application is identical.

Why Wisconsin boat owners form LLCs

The reasons are the same ones covered in our national boat LLC guide, grounded in Wisconsin realities:

Liability separation. Wisconsin boats carry guests — raft-ups on Lake Geneva, a Door County crossing, tubes towed behind the cottage pontoon on the Chain O’ Lakes. When an LLC owns the boat, a boat-related claim is aimed first at the LLC and its assets rather than your home and savings. It never shields you from your own negligence at the helm — insurance is still the first line of defense — but it draws a line around the asset.
Co-ownership. Shared boats are a Wisconsin institution: siblings splitting the up-north cottage’s pontoon, friends partnering on a Lake Michigan cruiser out of Port Washington. An LLC gives co-owners real percentages, an operating agreement, and a buyout mechanism that doesn’t require re-titling the boat every time someone joins or leaves. (Wisconsin’s own title system records co-owners as “and”/“or” tenants — an LLC replaces that blunt instrument with an actual agreement.)
Privacy. The LLC’s name — not yours — appears on the title, the registration, and the marina and winter-storage contracts. The DNR’s application takes a business name and FEIN in place of an individual and their Social Security number. How much anonymity that buys depends on the formation state: a Wyoming LLC discloses less about its members than most home-state filings.
Clean transfers. Selling the LLC’s membership interests can move the boat without re-titling it — useful for estate planning and partner buyouts. Wisconsin looks at substance, though; a transfer engineered purely to dodge the tax invites scrutiny. Get advice before you rely on it.

The tax: 5% plus the county where the boat sleeps

Wisconsin taxes boat purchases at the 5% state rate with no cap, plus local tax, and the mechanics depend on who you buy from:

From a dealer: the dealer collects the 5% state tax plus the county/city tax in effect where you will customarily keep the boat — not where the dealership sits — and remits it to the Department of Revenue. Buy in Dane County, keep the boat in a Sauk County slip, and Sauk County’s rate applies.
From a private party: the seller collects nothing, but the tax doesn’t vanish — the DNR collects the state and county/city tax from the buyer at registration and titling. The official application has the tax worksheet built in: purchase price (boat, motors, and accessories — the trailer is DOT’s department), minus any trade-in amount, times the rates for the county where the boat will be primarily kept.

The local layer is why two slips on the same water can carry different bills. Most counties add 0.5%; per the DOR’s current rate chart, Waukesha and Winnebago counties add nothing — a short list that keeps getting shorter, with two more counties adopting the 0.5% during 2025, so confirm the rate for your county before you budget. Today that means a boat kept at Oshkosh on the Winnebago system pays just the straight 5%, while the same boat berthed at Fond du Lac, at the south end of the same lake, pays 5.5%. At the other extreme, Milwaukee County charges 0.9% and the city of Milwaukee adds another 2% (both effective January 1, 2024) — a slip at the city’s lakefront marinas means 7.9% all-in.

Boat price	Typical Wisconsin county (5.5%)	City of Milwaukee (7.9%)	Florida (6%, $18,000 cap)
$50,000	$2,750	$3,950	$3,000
$200,000	$11,000	$15,800	$12,000
$500,000	$27,500	$39,500	$18,000 (capped)

Wisconsin has no vessel cap — compare Florida’s $18,000 ceiling or the state-by-state picture in our boat sales tax guide. For big hulls, the gap is real money; it is also not something an LLC can arbitrage, because the rate follows the slip.

Four legitimate softeners exist, and none of them involves an LLC:

The family exemption — and it’s narrow. A boat previously registered in Wisconsin and bought or received from a parent, stepparent, father- or mother-in-law, spouse, child, stepchild, or son- or daughter-in-law is exempt (s. 77.54(7)(b)1., Wis. Stats.). The DNR’s own instructions spell out the trap: a purchase from a sibling or grandparent is not exempt — narrower than Michigan’s family list.
Trade-ins. The trade-in amount you enter on the DNR worksheet comes off the purchase price before the tax is computed.
Tax paid to another state is credited against the Wisconsin tax due — you pay the difference, not both.
Moving to Wisconsin with your boat. A boat bought by a nonresident at least 90 days before becoming a Wisconsin resident comes in exempt.

Boats are taxed more strictly than cars here

Wisconsin exempts a car or airplane sold to a nonresident who just drives or flies it out of the state. Boats don’t get that exemption. Per DOR Fact Sheet 2113, a nonresident who takes possession of a boat in Wisconsin owes the 5% state tax even if the boat is trailered straight across the border (the county/city layer falls away if it’s kept out of state). And the reverse scheme — title the boat to a Montana LLC and skip the tax — collides with the registration counter: a boat primarily kept on Wisconsin water needs a Wisconsin registration, and the DNR’s application computes the tax for the county where the boat is primarily kept before the decals ever ship. Skipping registration on a boat that lives here isn’t a plan; it’s an unpaid tax bill with your marina address on it.

Registration and titling: $22 to $100, and the 16-foot line

Wisconsin registers essentially the whole powered fleet: all motorized boats — down to a canoe with an electric trolling motor — and sailboats over 12 feet. Non-motorized canoes, kayaks, and small sailboats are exempt (voluntary registration is available for $11). Boats registered in another state get 60 consecutive days of Wisconsin use before they need a Wisconsin registration. Registrations are issued for three years and every one expires on March 31 of its third year. The fees are set by Wis. Stat. § 30.52:

Vessel	3-year registration	Title fee
Motorboat under 16 ft	$22	not titled
Motorboat 16 ft to under 26 ft	$32	$5
Motorboat 26 ft to under 40 ft	$60	$5
Motorboat 40 ft and over	$100	$5
Non-motorized sailboat over 12 ft	$17	$5 if 16 ft or longer
USCG-documented boat (16 ft+)	$32–$100 by length	not titled — federal documentation instead
Transfer of a current WI registration	$3.75	—

The titling rule runs on a single line: Wisconsin titles motorized boats and sailboats 16 feet or longer that are not documented with the U.S. Coast Guard. Under 16 feet, there’s no title at all — the registration is the ownership record. And federally documented vessels — common among the bigger Lake Michigan and Green Bay cruisers — are the mirror image: Wisconsin doesn’t title them, but a documented boat based here must still carry a Wisconsin registration at the regular length-based fee. Owners of documented trawlers and sailboats miss that one constantly.

An LLC can be the owner on all of it. The DNR’s application is built for it — business name, FEIN, and a signature line for whoever signs on the company’s behalf — so the LLC appears on the registration certificate, the title, and by extension the slip contract and the winter-storage invoice. For documented vessels, the LLC can hold the Coast Guard documentation if it meets the USCG’s citizenship requirements.

No annual property tax on the hull

Here Wisconsin is genuinely friendlier than the coasts — and it has been for a long time, which is worth getting right. Pleasure boats are exempt from property tax by statute: s. 70.111(3), Wis. Stats. exempts “all pleasure watercraft used for recreational purposes,” and that predates the 2024 repeal. What 2023 Wisconsin Act 12 added is the backstop — new sec. 70.111(28) exempts all remaining personal property, “including steam and other vessels,” beginning with the January 1, 2024 assessment, which closes the gap for hulls held or used commercially. Either way the outcome for an owner is the same. Where a California assessor bills roughly 1% of a boat’s value every year and South Carolina counties send annual bills of their own, a boat in a Sturgeon Bay or Bayfield slip generates no recurring property-tax bill at all — LLC-owned or not. Once the purchase tax is paid, the state’s recurring take is the three-year registration renewal.

Already own the boat? Re-titling it into an LLC is a transfer

Moving a boat you already own into a new LLC means transferring the title and registration into the company’s name — and the tax question turns on how the transfer is structured. The family exemption covers relatives, not companies, so it does nothing here; a transfer for consideration can be a taxable sale, while the DNR’s form leaves room for genuinely free transfers under its “other” exemption (a gift or even trade), subject to DOR review. If the boat carries a loan, your lender must consent before the title moves. Buying through the LLC from day one is cleaner than moving a boat in later; if you’re re-titling, price the tax question with a Wisconsin CPA first.

Form the LLC in Wisconsin — or Wyoming, Delaware, or Florida?

For a boat that lives on Wisconsin water, the honest answer depends on why you’re forming the entity:

The tax outcome is identical everywhere. The 5%-plus follows the boat’s purchase and its Wisconsin registration regardless of formation state. A Wyoming, Delaware, or Florida LLC on the title saves nothing on the DNR worksheet.
Wisconsin is simplest if you’re local. One state, one registration relationship, the entity and the boat in the same place. Wisconsin LLCs are filed with the Department of Financial Institutions for $130 online ($170 by paper — always file online), with a $25 annual report (online; $40 paper). One quirk worth flagging: the annual report is due at the end of the calendar quarter your LLC was formed in, not on a fixed statewide date — a February formation reports by March 31, an October formation by December 31.
Out-of-state formation buys other things. A Wyoming LLC is a strong privacy-oriented holding company — members stay off the public record — and Delaware makes sense inside a larger structure with partners or investors. Budget for a registered agent in a state you have no other connection to.

Where FilingDesk fits

FilingDesk forms the holding LLC that will own your boat — describe what you need in plain English, we run the name check, prepare and file the paperwork, and a human specialist reviews every filing before it goes to the state — then handle your EIN and operating agreement. Flat $99 plus the state fee: Wyoming $199, Delaware $209, Florida $224 all-in, no upsells. Wisconsin formation is on our roadmap; today, a Wyoming, Delaware, or Florida holding LLC is the practical route, with the Wisconsin titling, registration, and tax handled separately.

We’ll also tell you what a formation service usually won’t: if your boat is bought, registered, and kept in Wisconsin, no LLC — in any state — erases the 5% plus the county’s share, and boats don’t even get the nonresident exemption cars do. Form the entity for the right reasons — liability, co-ownership, privacy, a holding structure — and keep the boat-specific steps (the DNR application, the March 31 renewals, insurance) with you and your marine pros. When you’re ready, start your holding LLC.

FilingDesk is not a law firm and does not provide legal or tax advice. This guide is general information only; confirm current figures with the Wisconsin Department of Natural Resources, Department of Revenue, and Department of Financial Institutions, and consult a professional about your specific situation.

Frequently asked questions

How much is sales tax on a boat in Wisconsin?

Wisconsin charges the 5% state sales/use tax on the full purchase price — there is no cap — plus the local tax in effect where the boat will be primarily kept: a 0.5% county tax in most counties, 0.9% in Milwaukee County, and an additional 2% inside the city of Milwaukee (7.9% combined there). The local rate follows the boat's home water, not your home address: a buyer who lives in Milwaukee but keeps the boat in a Walworth County slip on Lake Geneva pays Walworth's rate, and on the Department of Revenue's current rate chart, Waukesha and Winnebago counties are the only two that impose no county tax at all. That list moves — two more counties adopted the 0.5% during 2025 — so check the chart for the county you'll keep the boat in before you budget.

Do I pay tax on a used boat bought from a private seller in Wisconsin?

Yes. Wisconsin does not exempt private-party boat sales. When the seller is an individual who didn't use the boat in a business, the seller doesn't collect anything — instead the DNR collects the state and applicable county/city tax from you when you register and title the boat. The trade-in amount entered on the DNR worksheet is subtracted from the purchase price before tax is figured, and tax properly paid to another state is credited against the Wisconsin tax due. The one family carve-out is narrow: a boat previously registered in Wisconsin and bought or received from a parent, stepparent, parent-in-law, spouse, child, stepchild, or child-in-law is exempt under s. 77.54(7)(b)1 — purchases from a sibling or grandparent are taxable.

Can a Montana or Wyoming LLC avoid Wisconsin sales tax on my boat?

No. The tax attaches to the boat's purchase and its registration and use in Wisconsin, not to the state where the owning LLC was formed. A boat primarily kept on Wisconsin water needs a Wisconsin registration, and the DNR's own application collects the 5% state tax plus the county/city tax for the county where the boat is primarily kept before the registration issues. Wisconsin even taxes boats more strictly than cars: a nonresident who takes possession of a boat in Wisconsin owes the 5% state tax even if they immediately remove it — the nonresident removal exemption that covers motor vehicles and aircraft does not extend to boats. Form the LLC for liability, co-ownership, and privacy, never to erase the tax.

How much does it cost to register a boat in Wisconsin?

Registration runs on a three-year cycle and is scaled by length: $22 for a motorboat under 16 feet, $32 for 16 to under 26 feet, $60 for 26 to under 40 feet, and $100 for 40 feet and over. Non-motorized sailboats over 12 feet pay $17, and titled boats add a one-time $5 title fee. Taking over a boat with a current Wisconsin registration is a $3.75 transfer. Every registration expires on March 31 of its third year, and applications and renewals run through the DNR's GoWild system online.

Which boats must be titled in Wisconsin?

Wisconsin titles motorized boats and sailboats 16 feet in length or longer that are not documented with the U.S. Coast Guard; the title fee is $5. Boats under 16 feet are registered but not titled. Federally documented vessels are the mirror image: Wisconsin does not issue state titles for them — the Coast Guard documentation serves that role — but a documented boat based in Wisconsin must still carry a Wisconsin registration at the regular length-based fee. An LLC can be the owner in either system, listed by its business name and FEIN.

Does Wisconsin charge annual property tax on boats?

No — and this is not new in 2024. Wisconsin has long exempted pleasure boats from property tax under s. 70.111(3), Wis. Stats., which covers all pleasure watercraft used for recreational purposes. 2023 Wisconsin Act 12 then created s. 70.111(28), exempting all remaining personal property — including steam and other vessels — beginning with the January 1, 2024 assessment, which closes the gap for boats held or used commercially. Unlike California or South Carolina, where county assessors bill boat owners every year, a boat in a Wisconsin slip generates no annual property-tax bill, whether it's owned personally or by an LLC. The recurring costs are the three-year registration and, for an LLC, the entity's annual-report fee.

Sources

This guide is general information, not legal advice. FilingDesk is not a law firm.

Forming an LLC for your boat in Wisconsin