Financing a Boat: Loan Terms, Survey and Insurance Requirements, Liens and the True Cost of Ownership

Before you look at boats, work out what you can spend each year to own one. Discover Boating's cost-of-ownership guide lists what comes on top of the loan: a trailer (and its tires, brakes and upkeep), insurance, storage, routine maintenance, winterizing and spring make-ready in cold areas, safety gear and accessories. It also reminds buyers not to tie up cost-of-living money in a discretionary purchase. Our storage guide covers storage costs in detail.

As a rough example from Discover Boating: servicing and winterizing a 150 hp four-stroke outboard might run around $250, plus about another $250 to clean and winterize the boat; outdoor shrink-wrapping is roughly $10 to $15 per foot. Salt water raises maintenance costs. Your local prices will differ, so get quotes.

BoatUS reminds buyers that sales tax may have to be paid upfront or financed, depending on the state. Add title, registration or documentation fees, the survey, and any dealer prep or delivery charges. Financing these means paying interest on them for years.

BoatUS (2014) noted that the closer your score is to 700 and up, the better the rate. Pull your credit report and fix errors before you apply. Gather what BoatUS's FAQ says lenders typically ask for: tax returns, bank and retirement account statements, a personal financial statement listing assets and debts, and details on the boat. Lenders also check that you can make the down payment without draining your savings, and that your debt-to-income ratio (monthly debt payments divided by monthly income) fits their guidelines.

• Fixed-rate, simple-interest installment loans are the most common, with the same payment for the life of the loan (BoatUS 2014).
• Longer term = lower payment, more total interest. BoatUS's loan page notes shorter terms usually mean higher payments but less interest overall, and that early payments in any loan are mostly interest.
• Watch the fine print on teaser rates. BoatUS (2014) noted low advertised rates often come with conditions, like a short term or newer boats only.
• Compare APR to APR. The Consumer Financial Protection Bureau explains that the interest rate is the cost of borrowing, while the APR adds the lender's fees (such as origination charges), and that the federal Truth in Lending Act requires lenders to disclose the APR before you finalize a loan. Comparing one lender's APR with another's interest rate makes the second look cheaper than it is.
• Ask about prepayment penalties and whether you can pay extra toward principal. The CFPB's advice for loans with a prepayment penalty applies here too: read exactly when it kicks in and how much it is, and ask for a quote on the same loan without one so you can compare total cost. If you might sell the boat in a few years, this matters.
• Home equity loans may cost less in interest, but if things go wrong it's your home at risk, not just the boat.
• Interest deduction: IRS Publication 936 says a home for the mortgage interest deduction can include a boat with sleeping, cooking and toilet facilities, as a main or second home. Whether that applies to you depends on your taxes and the loan; ask a tax professional.

Run the numbers on a loan calculator for several terms and down payments, and look at total interest paid, not only the monthly figure.

BoatUS (2014) noted it's harder to get good rates, or any loan, on older boats, and that the longest terms were usually for larger loans on newer boats. Lenders base the loan on value: BoatUS's FAQ says they use the contract price for new boats and book value for used boats, checking the price against valuation guides such as NADA, BUC and ABOS. If you're paying well over book value, expect a bigger down payment. Some lenders also exclude whole categories of boats; BoatUS's FAQ, for example, says its lending partners can't currently take applications for steel-hull boats. Ask early if your boat is unusual (steel, wood, a home-built or a project boat).

Thinking of splitting the loan with a friend? Owners in forums who have co-owned boats mostly report trouble over who uses the boat, who pays for repairs and who cleans it. If you do co-own, every borrower is usually responsible for the whole loan, and the title or documentation lists all owners, so put a written agreement in place first covering use, costs, insurance and what happens if one of you wants out.

BoatUS's lending partners don't issue house-style pre-approvals, but you can apply listing a boat similar in age, length and type to the one you want, at a realistic price, and you're not locked into that exact boat. Their FAQ says most applicants get a decision in 2 to 4 business days. Discover Boating notes prequalifying usually uses a soft credit check, while a full application involves a hard inquiry.

BoatUS (2025) strongly recommends checking insurance before you fall for a boat. Many insurers have tightened up and won't take boats over about 20 years old or over 40 feet, may not bind a policy when a named storm is headed your way, and may restrict where the boat can be in hurricane season. Lenders commonly require full (comprehensive) coverage on a financed boat, as Discover Boating notes. Insurers may want:

• A survey that values the boat at or above the amount you're insuring
• Repairs completed before you leave the dock or within a deadline ("insure in place")
• A written hurricane plan in storm-prone areas

Ask whether the policy pays agreed value or actual cash value on a total loss; BoatUS explains agreed value tells you exactly what you'd receive, while actual cash value pays current market value. That difference matters if you owe more than the boat is worth.

BoatUS's FAQ says lenders usually require a marine survey on most used boats, plus a signed sales contract, before closing. A survey protects you as much as the lender: it can uncover problems worth renegotiating over. Make your offer subject to survey, sea trial and financing. Our insurance survey and used boat inspection guides explain what surveyors look at.

• Documented boats: BoatUS's FAQ says that if a boat is eligible for Coast Guard documentation, lenders typically require it, and they prepare a First Preferred Ship Mortgage filed with the Coast Guard. BoatUS's documentation FAQ adds that the Coast Guard won't make changes such as a change of ownership without the lender's consent; under 46 CFR 67.145, even a name or hailing port change needs the mortgagee's consent.
• Smaller (titled) boats: no formal ship mortgage is prepared, but the lender records its lien against the state title or equivalent document.
• Either way, the lien is released when the loan is repaid.

Keep your documentation or registration current; your loan contract likely requires it.

BoatUS describes a typical closing: once the lender has everything from buyer and seller, both sign and notarize the paperwork, and funds go out in a day or two. If the seller still owes money on the boat, the lender pays the seller's lienholder directly; otherwise the seller is paid by check or wire. Buyer and seller don't have to be in the same place. Before you sign:

• Confirm the HIN on the boat, the title or COD and the contract all match
• Ask for an abstract of title on a documented boat (46 CFR 67.301) to see recorded mortgages and liens
• Make sure any accessories, trailer or warranty you're financing are listed; Discover Boating notes you can often roll these in, but you'll pay interest on them for the full term
• Look hard at optional add-ons offered in the finance office (GAP coverage, service contracts, payment protection). The CFPB's guidance is written for car loans, but the same logic applies: GAP is meant to cover the difference between what you owe and what insurance pays after a total loss, prices vary a lot, and your own insurer or lender may sell it for less. If you're told an add-on is required, ask where the contract says so or call the lender; if it really is required, its cost must be part of the finance charge and the APR. Optional add-ons can be declined, and the CFPB says you may be owed a refund on them if you sell, refinance or pay off early

Our purchase-and-closing and scams guides cover the rest of the paperwork.

You can sell a boat that still has a loan, but the buyer needs a clean title. The usual path:

1. Get a written payoff letter from your lender with the exact amount and a good-through date.
2. The buyer's lender (or an escrow service) pays your lender directly, as BoatUS describes for its own loans. Any remainder goes to you.
3. Your lender releases the lien: on a state title, through a lien release or new title from the state; on a documented boat, through a satisfaction or release of the mortgage filed with the NVDC (46 CFR 67.265 covers these instruments).
4. Keep copies of everything, and check that the lien really shows as released.

If you owe more than the boat sells for, you'll need to cover the difference at closing. BoatUS (2014) recalled the last recession, when boat values dropped about 35% and many owners owed more than their boats were worth. A bigger down payment and a shorter term protect you from being "underwater."

Once a year, compare your balance with the boat's market value, check whether refinancing makes sense if rates have dropped (BoatUS notes refinancing can lower the payment or the rate), and check that your insurance value still matches the boat. If money gets tight, call your lender before you miss a payment.