The Paperwork You Need to Sell a Boat: A Complete Guide

A boat sale almost never falls apart over price. It falls apart over paper. A buyer hands over a deposit, the survey checks out, both sides shake hands — and then someone discovers the title is in a deceased co-owner's name, or the lien from a loan paid off four years ago was never officially released. Suddenly a clean deal stalls for weeks while everyone hunts for documents that should have been ready on day one.

The good news: the paperwork to sell a boat is entirely manageable if you assemble it before you list. Most of it you already have in a drawer. The rest you can request now, while there's no buyer waiting and no clock running. This guide walks through every document you're likely to need, why it matters, what it costs, and the mistakes that turn a two-day closing into a two-month headache.

The Core Documents Every Sale Needs

No matter the size or value of the boat, almost every private sale comes down to proving three things: that you own it, that you have the right to sell it, and that ownership has legally passed to the buyer. A handful of documents do that work.

Proof of Ownership: Title or Documentation

This is the foundation of the entire sale. How you prove ownership depends on the boat.

• State title. Most states title boats above a certain length (often 16 feet, but it varies). The title names the legal owner and lists any lienholder. If your boat is titled, the title is the single most important document in the sale — without it, the buyer can't register the boat in their name.
• Coast Guard documentation. Larger boats, typically over five net tons (roughly 26 feet and up, depending on design), are often federally documented with the U.S. Coast Guard instead of, or in addition to, state titling. A documented boat has a Certificate of Documentation showing the official number carved into the hull. Selling a documented boat involves a different transfer process — more on that below.
• Manufacturer's Statement of Origin (MSO). For a brand-new boat that's never been titled, the MSO is the original proof of ownership before the first title is issued. Most used-boat sellers won't have this, but if you bought new and never titled, you might.

If you can't find your title, request a duplicate from your state's titling agency (DMV, department of natural resources, or similar) now. A duplicate typically costs $5–$50 and can take one to several weeks to arrive — exactly the kind of delay you don't want once a buyer is waiting.

Current Registration

Registration is separate from title. The title says who owns the boat; the registration says it's legally permitted to operate in your state and shows the hull identification number (HIN), make, model, and year. Buyers want to see current registration because it confirms the boat's identity matches the paperwork and that you've kept it legal.

Bring your current registration card to the sale. Note that registration is generally not transferable — the buyer registers the boat fresh in their own name and state — but having it makes the transfer smoother and reassures the buyer.

Bill of Sale

The bill of sale is the document that actually records the transaction. It's the receipt that proves the boat changed hands, for how much, and when. Many states require it for the buyer to register the boat, and it protects you by establishing the exact date you stopped being the legal owner — important if the boat is involved in an accident or racks up a marina bill the day after the sale.

A solid boat bill of sale includes:

• Buyer and seller full legal names and addresses
• Date of sale and purchase price
• A full description of the boat: make, model, year, length, HIN, and registration or documentation number
• Engine details: make, model, serial numbers, and horsepower
• Trailer information and VIN, if included
• A list of any included equipment (electronics, dinghy, safety gear)
• "As-is" language, if you're selling without warranty (almost all private sales are)
• Signatures of both parties, and notarization if your state requires it

Some states publish an official bill of sale form; use it if available. Otherwise a clear written document works. Always sign two copies so each party keeps an original.

Clearing Liens and Loans

Nothing kills buyer confidence faster than an unexpected lien. If you have any loan on the boat — or ever did — handle this before you list.

If the Loan Is Paid Off

When you pay off a boat loan, the lender is supposed to release its lien, but the release doesn't always make it onto the title automatically. Pull your title and look at the lienholder section. If a lender is still listed, you need a lien release (sometimes called a satisfaction of lien) — a signed letter or form from the lender confirming the debt is settled.

Request this from your bank now. Lenders can take days or weeks to produce one, and some charge a small fee. Without it, the buyer's state may refuse to issue a clean title.

If You Still Owe Money

Selling a boat you still owe on is common and entirely doable, but it requires coordination. You'll need a payoff letter from your lender stating the exact amount to clear the loan and the deadline that figure is good through (interest accrues daily, so payoffs have expiration dates).

The cleanest approach:

1. Get the payoff figure from your lender.
2. Structure the sale so the buyer's payment first goes to the lender to satisfy the loan.
3. The lender releases the title and sends the lien release.
4. The remaining balance goes to you.

For higher-value boats, an escrow service or a yacht broker's trust account handles this neatly — the buyer's funds sit safely until the lien clears and clean title can be delivered. For private sales, you can also meet the buyer at your bank and complete everything at once.

Documents for Coast Guard Documented Boats

If your boat is federally documented, the process is different and worth getting right.

Transferring Documentation

A documented boat isn't transferred with a state title. Instead, ownership passes through a chain of paperwork filed with the Coast Guard's National Vessel Documentation Center (NVDC). The key pieces:

• Certificate of Documentation — the current certificate in your name.
• Bill of sale — for documented boats, the Coast Guard prefers its own form (CG-1340) or an equivalent that clearly transfers title.
• Satisfaction/release of any Preferred Ship's Mortgage — the documented-boat equivalent of a lien release. If you financed the boat, the lender likely recorded a mortgage with the Coast Guard, and it must be formally satisfied.

The buyer files for a new Certificate of Documentation in their name. Processing at the NVDC can take several weeks, so build that into your timeline. Many sellers and buyers of documented boats use a documentation service or broker to prepare the filings correctly — small errors get applications rejected and add weeks.

Abstract of Title

For documented boats, a buyer (or their lender) will often order an abstract of title from the Coast Guard — a complete ownership and lien history of the boat. As a seller, requesting one yourself before listing is smart: it surfaces any forgotten mortgage or claim while you still have time to clear it. Expect a modest fee and a short wait.

Supporting Paperwork That Builds Trust and Speeds the Sale

The documents above are the legal minimum. The next group isn't always required, but they make your boat easier to sell, support your asking price, and head off buyer doubts. For anyone weighing how to position a listing, it pairs well with thinking through how to price your boat to sell.

Maintenance and Service Records

A binder of service history is one of the most persuasive things you can show a buyer. Oil change logs, engine service, bottom jobs, new electronics, repower records — they prove the boat was cared for and justify a stronger price. Organize them chronologically and include receipts where you have them.

Survey Reports

If you've had a recent marine survey — or have an old one from when you bought the boat — keep it handy. The buyer will almost certainly commission their own survey, but a clean prior report signals you have nothing to hide. (For background on what surveyors look for, see what a marine survey covers.)

Warranty and Equipment Documents

Transferable warranties on engines, electronics, or the hull add real value. Gather warranty cards, registration confirmations, and manuals for installed equipment. If a warranty is transferable, find out what the manufacturer requires to move it to the new owner — sometimes it's a simple form and a small fee.

Insurance Records

You don't transfer your policy to the buyer, but your insurance history can support the boat's condition and claims record. A clean record reassures a buyer that the boat hasn't had major damage.

State-Specific and Situational Documents

Beyond the universal documents, several items come up depending on where you live and the specifics of your sale.

Sales Tax Forms

Many states collect sales or use tax when a boat changes hands, usually paid by the buyer at registration based on the price you list on the bill of sale. Some states require a specific tax form or declaration. As a seller, your main job is an honest, accurate bill of sale — understating the price to help a buyer dodge tax is illegal and can come back on you.

Trailer Title and Registration

If the boat comes with a trailer, the trailer is a separate titled item in most states. You'll need to transfer the trailer title and provide its registration. Don't overlook this — buyers often discover at the DMV that the trailer paperwork is missing, and it delays the whole transfer.

Power of Attorney or Estate Documents

Selling on behalf of someone else — a relative, an estate, a co-owner who can't be present — requires extra paperwork:

• A signed power of attorney if you're acting for the owner.
• Probate or estate documents (letters testamentary, death certificate) if the owner has died and you're selling from the estate.
• All co-owners' signatures if the title lists more than one name, especially when joined by "and" rather than "or."

These situations are exactly where deals stall, so confirm your authority to sell before you advertise.

Offer and Purchase Agreement

For higher-value boats, a written purchase and sale agreement sits ahead of the bill of sale. It spells out the price, deposit, contingencies (survey, sea trial, financing), closing date, and what happens if the deal falls through. Brokers use a standard form; private sellers of expensive boats should consider one too. It protects both sides during the inspection period and turns a handshake into an enforceable agreement.

A Step-by-Step Paperwork Checklist

Here's the order that keeps a sale moving:

1. Locate your title or Certificate of Documentation. Request a duplicate immediately if it's missing.
2. Pull your registration and confirm the HIN matches every document.
3. Check for liens. Get a lien release for any paid-off loan, or a payoff letter for a current one.
4. Gather supporting records — service history, surveys, warranties, manuals.
5. Handle the trailer title and registration if one's included.
6. Confirm your authority to sell if co-owners, an estate, or a POA is involved.
7. Prepare the bill of sale (and a purchase agreement for larger boats).
8. Plan the money and lien-clearing mechanics — escrow, broker trust account, or a meeting at the bank.
9. At closing, sign and exchange the title (properly endorsed to the buyer), bill of sale, lien release, and registration.
10. Keep copies of everything and notify your insurer and state agency that you've sold the boat.

Common Paperwork Mistakes That Cost Sellers

A few errors show up again and again:

• Waiting until a buyer appears to find the title. Duplicates take weeks. Order yours before you list.
• Forgetting an old lien. A satisfied loan that was never released on the title stops the buyer from registering. Check early.
• Mismatched HINs. If the hull number on the boat doesn't match the title, the sale halts until it's resolved. Verify it now.
• Skipping the trailer paperwork. It's a separate title in most states and easy to overlook.
• A vague bill of sale. Leaving off the HIN, engine serials, or "as-is" language invites disputes. Be specific.
• Not removing yourself from liability. Notify your state and insurer the moment the sale closes, so you're not on the hook for the buyer's actions.

Frequently Asked Questions

Do I need a title to sell my boat?

In most cases, yes — if your state titles boats, the buyer needs the title properly signed over to register it. Smaller boats below the state's titling threshold may sell on a bill of sale and registration alone. If your title is lost, order a duplicate from your titling agency before you list.

Is a bill of sale enough to sell a boat?

A bill of sale records the transaction but usually isn't sufficient on its own. The buyer needs proof of ownership — a title or Coast Guard documentation — to register the boat in their name. The bill of sale supports that transfer and protects both parties, but it complements the title rather than replacing it.

Do I need to notarize a boat bill of sale?

It depends on your state. Some require notarization for the buyer to register the boat; many don't. Check your state's requirements before closing, and when in doubt, notarize — it's inexpensive and removes any question about authenticity.

How do I sell a boat I still owe money on?

Get a payoff letter from your lender with the exact amount and its expiration date. Structure the sale so the buyer's funds clear the loan first, the lender releases the title and lien, and you keep the balance. An escrow service or broker trust account makes this safe for both sides.

What paperwork is different for a Coast Guard documented boat?

Documented boats transfer through the National Vessel Documentation Center rather than a state title. You'll provide the Certificate of Documentation, a bill of sale (often the CG-1340 form), and a satisfaction of any Preferred Ship's Mortgage. The buyer then files for a new certificate, which can take several weeks.

Who handles the sales tax when I sell my boat?

The buyer typically pays sales or use tax at registration, based on the price on the bill of sale. As the seller, your responsibility is an accurate, honest bill of sale. Never understate the price — it's illegal and can expose you to penalties.

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Get your documents in order before you advertise, and the rest of the sale tends to take care of itself. A clean title, a clear lien release, an accurate bill of sale, and a tidy stack of service records do more to close a deal at a strong price than any clever listing copy. When you're ready, list your boat alongside thousands of others on Yachtlista and connect with buyers who are ready to move — paperwork and all.