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Boat Loan Calculator

Calculate monthly boat loan payments with down payment, trade-in, sales tax, and fees — including a full amortization schedule.

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Results are for informational purposes only. Always verify with a qualified professional.

⚠️ Please fill in all required fields with valid numbers.

Everyday Uses

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Dream boat budgeting

See the real monthly payment with taxes and fees before falling in love at the boat show.

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Total ownership cost

Financing is only part of it — get the loan picture clear so mooring and upkeep fit the budget too.

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Trade-in scenarios

See how trading in your current boat changes the financing on the next one.

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Term comparison

Boat loans run long — compare 10 versus 15 years and the interest difference.

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The costs the loan does not cover

Mooring, insurance, winter storage, antifouling and servicing commonly run near a tenth of the boat's value every year, entirely separate from the finance.

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Long terms on a depreciating asset

Marine loans stretch to fifteen or twenty years. Set the balance curve against realistic resale value before taking the longest term on offer.

Frequently Asked Questions

What are typical boat loan interest rates and terms?

Boat loan rates generally run a bit higher than auto loan rates because boats depreciate faster and lenders see them as recreational, not essential, assets. Rates commonly range from about 6% to 12% depending on credit score, loan amount, and whether the loan is secured or unsecured. Terms are longer than car loans — typically 10 to 20 years (120–240 months) for larger boats, since the higher price tags need a longer term to keep payments manageable.

How much down payment do I need for a boat loan?

Most lenders require 10%–20% down for a boat loan, with newer or larger boats (and marine mortgages on vessels over $50,000) often requiring 20% or more. A larger down payment reduces the loan amount, lowers your monthly payment, and helps you avoid being underwater on a rapidly depreciating asset.

Is a boat loan secured or unsecured?

Most boat loans are secured loans, meaning the boat itself serves as collateral — similar to a car loan. Secured loans typically offer lower interest rates than unsecured personal loans. For very large or expensive vessels, some lenders structure the loan more like a marine mortgage, with similar documentation requirements to a home mortgage.

How fast do boats depreciate, and how does that affect financing?

Boats typically depreciate 10%–15% in the first year and can lose 30%–40% of their value within the first five years — faster than most cars. Because of this, it is important to avoid stretching the loan term so long that you owe more than the boat is worth (negative equity). A larger down payment and a moderate term (8–12 years) help keep the loan balance in line with the boat's declining value.

What other costs should I budget for beyond the loan payment?

Beyond the monthly payment, budget for: insurance (typically 1%–5% of the boat's value per year), storage or marina slip fees, fuel, routine maintenance and winterization, and registration/title fees. Many first-time boat owners underestimate these ongoing costs, which can rival or exceed the loan payment itself.