Boat Loan Calculator

Marine loans typically price 1 to 3 percentage points above auto loans for the same credit profile. The driver is collateral risk: boats are seasonal-use assets that depreciate faster than cars, are easier to relocate or hide on default, and the secondary market for repossessed vessels is thinner than for cars. Prime borrowers usually see boat APRs in the 6 to 9 percent band in normal rate environments, where the same borrower might land a 4 to 7 percent auto loan. Newer boats, larger down payments, and federally documented vessels all push the rate toward the bottom of that band.

Marine loans typically run 5 to 20 years, far longer than the 3 to 7 year terms common for autos. Lenders extend the term because the loan amounts are larger and the asset value supports it, especially for documented vessels. The trade-off is the same as on any amortizing loan: a 20-year boat loan cuts the monthly payment dramatically, but you pay much more interest over the life of the loan and stay underwater on the boat much longer. The comparison panel in this calculator shows the same loan amount at 5, 10, 15, and 20 year terms so you can see exactly what the lower monthly costs you in total interest.

United States Coast Guard documentation is a federal alternative to state titling for vessels of five net tons or more (roughly any boat 25 feet and up). Marine lenders generally require documentation on loans above $300,000 because the federal abstract of title and Preferred Ship Mortgage give them a cleaner, nationwide lien position than a state title can. Smaller loans are normally state titled and registered through your state's DMV or boat registry. This calculator flags the documentation threshold automatically when the loan amount crosses $300,000 and lets you fold the USCG initial filing fee into the financed principal.

Boats typically lose 20 percent or more of their value in year one and another 10 to 15 percent in year two, with the curve flattening after about year five. The exact rate depends on the segment: production fiberglass cruisers and PWCs depreciate fastest, well-maintained sailboats and high-end center consoles hold value better. The practical consequence on a long-term loan is that you will likely owe more than the boat is worth for the first few years, especially with a small down payment. Putting 20 percent down at purchase is the standard guidance to avoid being deeply underwater after year one.

Every marine lender requires you to carry full hull insurance for the life of the loan, with the lender named as loss payee. Marine policies are very different from auto policies: they include agreed-value hull coverage, navigational limits (often a specific cruising area), salvage and wreck-removal coverage, and protection against named-storm losses. Without it, a single hard grounding, a fire at the dock, or a hurricane in your home marina can leave you owing the full loan balance on a boat that no longer exists. The monthly insurance field in this calculator lets you fold a realistic premium into the monthly total so you see the true cost of ownership, not just the P and I figure the lender quotes.