Boat Loan Calculator

How Boat Loans Work

A boat loan is a secured installment loan — much like a car loan — where the vessel serves as collateral. The lender can repossess the boat if you default. Boat loans are available through banks, credit unions, marine lenders, and sometimes dealerships.

The Amortization Formula

Monthly payments use the standard loan amortization formula:

M = P × [r(1+r)^n] / [(1+r)^n − 1]

Where:

• M = Monthly payment
• P = Loan amount (purchase price minus down payment)
• r = Monthly interest rate (annual rate ÷ 12)
• n = Number of monthly payments (years × 12)

Typical Boat Loan Rates (2024)

Boat loan interest rates are generally higher than car loans but lower than personal loans:

• New boats: 6% – 12% APR depending on credit
• Used boats: 7% – 15% APR (older boats may not qualify for traditional financing)
• Excellent credit (720+): Often 6% – 8%
• Good credit (680–720): Often 8% – 11%

Loan Terms Available

Boat loans offer longer terms than cars:

• 36–60 months: Small boats, PWCs (personal watercraft)
• 84–120 months: Mid-range boats ($30K–$100K)
• 180–240 months: Large yachts and offshore cruisers ($100K+)

Longer terms mean lower monthly payments but significantly more total interest paid.

New vs. Used Boats

New boats get better financing terms but depreciate quickly — up to 20% in the first year. A used boat may have a lower sticker price but higher loan rates and larger insurance costs due to age.

Total Cost of Boat Ownership

The loan payment is just one piece. Annual costs typically include:

• Slip or storage: $1,500 – $10,000+ per year
• Insurance: 1.5% – 2% of boat value annually
• Maintenance: 2% – 5% of value per year (engines, bottom paint, winterizing)
• Fuel: $50 – $300+ per outing depending on engine size

Plan for total annual ownership costs of 15% – 25% of the boat’s value beyond the loan.

Down Payment Recommendation

Lenders typically require 10% – 20% down. A larger down payment reduces monthly payments and total interest, and prevents you from being underwater on the loan as the boat depreciates.