Boat Loan Calculator
Marine loans run much longer than car loans, up to 20 years on bigger boats. See the monthly payment and how much the extra years cost you in interest.
Annual percentage rate
The cost of your credit as a yearly rate.
Finance charge
The dollar amount the credit will cost you.
Amount financed
The amount of credit provided to you.
Total of payments
What you'll have paid after all scheduled payments.
Payment schedule: 180 payments of $514.03. Financed fees are treated as a finance charge here, so the APR sits above the note rate. Some fees (title, registration) legally are not, so your lender’s APR may be a little lower.
Same boat, different terms
| Term | Monthly | Total interest |
|---|---|---|
| 60 months (5 yrs) | $1,070.96 | $12,058 |
| 120 months (10 yrs) | $647.21 | $25,465 |
| 180 months (15 yrs) | $514.03 | $40,326 |
| 240 months (20 yrs) | $453.00 | $56,521 |
Total cost of the boat over this loan, including down payment and trade-in equity: $104,526.
How the balance falls
Amortization schedule
| Year | Paid | Interest | Principal | Balance |
|---|---|---|---|---|
| Year 1 | $6,168.41 | $4,367.93 | $1,800.48 | $50,399.52 |
| Year 2 | $6,168.41 | $4,208.78 | $1,959.63 | $48,439.89 |
| Year 3 | $6,168.41 | $4,035.57 | $2,132.84 | $46,307.06 |
| Year 4 | $6,168.41 | $3,847.05 | $2,321.36 | $43,985.69 |
| Year 5 | $6,168.41 | $3,641.86 | $2,526.55 | $41,459.14 |
| Year 6 | $6,168.41 | $3,418.53 | $2,749.87 | $38,709.27 |
| Year 7 | $6,168.41 | $3,175.47 | $2,992.94 | $35,716.33 |
| Year 8 | $6,168.41 | $2,910.92 | $3,257.49 | $32,458.85 |
| Year 9 | $6,168.41 | $2,622.99 | $3,545.42 | $28,913.43 |
| Year 10 | $6,168.41 | $2,309.61 | $3,858.80 | $25,054.63 |
| Year 11 | $6,168.41 | $1,968.52 | $4,199.88 | $20,854.74 |
| Year 12 | $6,168.41 | $1,597.29 | $4,571.12 | $16,283.63 |
| Year 13 | $6,168.41 | $1,193.25 | $4,975.16 | $11,308.47 |
| Year 14 | $6,168.41 | $753.49 | $5,414.92 | $5,893.55 |
| Year 15 | $6,168.41 | $274.86 | $5,893.55 | $0.00 |
Explain my numbers in plain English
Sends only the numbers shown above (and your question) to an AI model via Vercel AI Gateway. Nothing is stored. It's a plain-language read, not financial advice.
Why boat loans feel cheap monthly and cost a lot overall
A 20-year term is normal on a larger boat, which is why the monthly figure can look friendly. The same term means the balance falls slowly; drag along the balance chart and notice how many years pass before half the loan is gone. If you plan to sell in five or seven years, check the balance at that point against what similar used boats sell for.
Lenders typically ask for 10–20% down and price rates by credit score, loan size and the age of the boat. Remember the costs a loan payment doesn't show: insurance, slip or storage, maintenance and fuel.
Questions people ask
How long are boat loans?
Smaller boat loans commonly run 5 to 10 years; larger boats financed through marine lenders can stretch to 15 or 20 years. Longer terms make the payment manageable but add a lot of interest, which the term table shows.
How much down payment do I need for a boat?
Marine lenders commonly look for 10% to 20% down. A bigger down payment can win a better rate and protects you against depreciation.
Is boat loan interest tax-deductible?
Possibly: the IRS lets a boat qualify as a second home for the mortgage-interest deduction if it has sleeping, cooking and toilet facilities and the loan is secured by the boat. Check with a tax professional for your situation.
What costs are not in a boat payment?
Insurance, storage or slip fees, winterizing, maintenance, fuel and trailer registration. Budget for them separately; many owners estimate roughly 10% of the boat’s value per year for upkeep.