Boat Loan Calculator

Calculate monthly payments, total costs, and true cost of boat ownership including marine-specific expenses.

Reviewed August 29, 2026 · Calculation methodology · Inputs stay in your browser

Enter the purchase price of the boat.
Enter your down payment amount (if any).
Enter the value of your trade-in (if any).
Enter the annual interest rate for the loan.
Select the length of your loan term.
Enter the sales tax rate (if applicable).
Enter registration, documentation, and other marine fees.
Enter the cost of a trailer if needed.
Enter your annual insurance cost.
Enter annual costs for slips, mooring, or winter storage.
Enter estimated annual maintenance costs.
Enter average daily cost for fuel and other usage expenses.

Boat Financing Tips

  • The total cost of boat ownership goes far beyond the purchase price. Budget for ongoing expenses.
  • Boat loans typically have longer terms than car loans, often 10-20 years for larger boats.
  • Many lenders require a down payment of 10-20% for boat loans.
  • Insurance costs vary based on boat type, size, age, and where you'll use it.
  • Don't forget to include seasonal storage, maintenance, fuel, and docking fees in your budget.
  • Consider the "cost per use day" to determine if ownership or occasional rental better fits your needs.

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