Boat Loan Calculator

About the Boat Loan Calculator

Boat loans are similar to auto loans but with a few twists: longer terms available (up to 20 years on large boats), higher rates than mortgages, and significantly higher depreciation and maintenance costs. This page covers loan structure plus the 'second wallet' costs every boat buyer underestimates.

The Formula

Standard amortization: M = P × r × (1+r)^n ÷ ((1+r)^n − 1). Boat APRs typically run 6-10% for prime credit, 10-18% for fair credit. Terms 5-20 years depending on boat value.

Worked Example

$75,000 boat, $15,000 down, $60,000 financed at 7.5% for 10 years (120 months): M ≈ $712/month, total interest $25,440. Total cost of the boat over the loan: $100,440 — plus storage, insurance, maintenance, fuel.

The real cost of boat ownership

Rule of thumb: annual operating costs equal 10% of purchase price. A $75,000 boat costs roughly $7,500/year to insure, store, fuel, and maintain — on top of the loan. Boats spend most of their life in storage, accumulating depreciation and slip fees. Many owners use their boats 20-40 days/year — that's $200-400 per day of use.

Boat depreciation

New boats lose 25-30% of value in the first year, 50% by year 5. Used boats (3-5 years old) often offer 30-40% better value than new. Pontoon and small fishing boats hold value better than wakeboats or yachts.

Boat loan structures

Marine lenders (not auto banks) typically write boat loans. Required down payment is 10-20%. Loans over $100,000 may require marine survey (similar to home inspection, $500-1,500). Older boats may need shorter terms or higher down payments.

Common Mistakes

• Calculating affordability based only on the monthly payment, ignoring annual operating costs.
• Buying new instead of 3-5 year old — first-year depreciation is the most expensive year.
• Skipping marine survey to save money on a used boat. Hidden hull or engine issues can cost more than the survey.

Frequently Asked Questions

Is boat loan interest tax deductible?
Only if the boat qualifies as a 'second home' (has sleeping, cooking, and toilet facilities). Liveaboard boats may qualify.

How long can a boat loan term be?
5 to 20 years depending on boat value. Longer terms = lower payment but more total interest and longer time underwater on the loan.

This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Consult a licensed professional before making significant financial decisions.