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Financial calculator

Boat Loan Calculator

Estimate a marine loan payment with purchase price, down payment, trade-in, tax, fees, APR and term.

Boat ownership costs can include storage, insurance, maintenance, fuel and registration. This page estimates financing only.

Method

The calculator estimates taxable value, adds tax and fees, subtracts down payment and trade-in, then applies fixed-rate amortization over the selected term.

Example

For a $65,000 boat, $10,000 down payment, 6% tax and 8.25% APR over 10 years, the amount financed is about $58,900 before any extra fees and the monthly payment is about $722.

Common mistakes

Financing is only part of boat cost. Storage, maintenance, insurance, fuel and winterization can materially change affordability.

Limitations

This is not a lender quote. It excludes insurance, storage, marina fees, maintenance, fuel, registration, seasonal use, survey costs and lender-specific requirements.

References

Last reviewed: 2026-05-16

Before relying on this result

Use this calculator together with the formula, assumptions, limitations and examples on the page. If the topic involves health, tax, lending, investment, legal, safety or current-rate decisions, treat the number as an estimate and check the relevant primary source or professional guidance.

Calculator metadata last reviewed: 2026-05-14.