Boat Loan Calculator
Calculate loan payments, interest costs, and repayment schedules.
Boat Details
Purchase price before taxes and fees
Length affects financing options
Typical: 10-20% for boats
Value of your current boat trade-in
New boats typically qualify for lower rates (5-8%)
Max 15 years for this boat
Local sales tax rate
Fees & Costs
Lender origination fee
Dealer documentation fee
State registration and title fees
Marine survey fee (used boats)
Affordability Check
Your annual gross income
Loan Results
Monthly Payment
Principal & Interest
Loan Amount
87.5% LTV
Down Payment + Trade
20.0%
Principal vs Interest
Cost Breakdown
Insurance & Total Monthly Cost
Affordability Analysis
✓ This boat appears affordable based on your income!
Loan Summary
⚓ Boat Financing Tips
- • Newer boats typically qualify for better rates and longer terms
- • Consider seasonal rate promotions from marine lenders
- • Budget for ongoing costs: insurance, maintenance, storage, fuel
- • Marine surveys are recommended for used boats
- • Shop multiple lenders including banks, credit unions, and marine specialists
How it works
A boat loan amortizes the amount financed (boat price plus tax and fees, minus your down payment and trade-in) into a fixed monthly payment. Boats are depreciating assets and loans can run long, so total interest adds up — a bigger down payment and shorter term trim it.
Monthly payment (amortizing loan)
M = P · r(1 + r)ⁿ / [(1 + r)ⁿ − 1]
- P
- amount financed
- r
- monthly rate (APR ÷ 12)
- n
- number of payments (years × 12)
Worked example
- Finance P = $40,000
- APR = 7% → r ≈ 0.00583
- 7-year term → n = 84
- (1 + r)ⁿ = 1.00583⁸⁴ ≈ 1.632
- M = 40,000 × 0.00583 × 1.632 ÷ (1.632 − 1)
Payment ≈ $603/month, about $10,700 in total interest.
Good to know
- Marine lenders often want 10–20% down and may cap the term by boat age.
- Budget for the real cost of ownership: insurance, storage, fuel, and maintenance often dwarf the loan payment.
- Because boats depreciate, paying extra toward principal avoids being underwater on the loan.
Related Calculators
Frequently Asked Questions
How is a boat loan payment calculated?
Like any amortizing loan: M = P × r(1+r)ⁿ / [(1+r)ⁿ − 1], with P the amount financed, r the monthly rate, and n the number of payments. Financing $40,000 at 7% over 7 years comes to about $603 per month and roughly $10,700 in total interest.
What are typical boat loan terms?
Marine lenders commonly ask for 10-20% down, and terms run longer than car loans — often 10-20 years on larger amounts, with shorter caps on older or smaller boats. Longer terms shrink the payment but substantially raise total interest.
Do boats depreciate like cars?
Yes, and fastest in the first few years — which combined with long loan terms makes it easy to owe more than the boat is worth. A healthy down payment and extra principal payments keep the loan ahead of the depreciation curve.
What credit profile do boat lenders look for?
Boats are discretionary purchases, so lenders tend to be choosier than for autos: good-to-excellent credit, documented income, and a reasonable debt-to-income ratio earn the best rates. Weaker credit usually means larger down payments and noticeably higher APRs.
What ownership costs should I budget beyond the payment?
Insurance, mooring or storage, maintenance, winterization, fuel, and registration — a common rule of thumb puts annual upkeep at around 10% of the boat's value. These recurring costs often surprise first-time owners more than the loan itself.