Boat Loan Calculator
Estimate your monthly boat loan payment, total interest and the full cost of financing a new or used boat.
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About the Boat Loan Calculator
This boat loan calculator shows your monthly payment and total cost of financing a boat. Boat loans often run 10 to 20 years and typically require 10% to 20% down, with rates that depend on your credit, the boat's age and its price. Add sales tax, fees and extra payments to see the full picture.
How to use it
- Enter the boat price, down payment, APR and loan term.
- Add sales tax, fees and an optional extra monthly payment.
- Press Calculate boat loan to see the payment, interest and total cost.
Boat financing basics
| Item | Typical range |
|---|---|
| Down payment | 10% to 20% |
| Loan term | 10 to 20 years |
| Insurance | Required by most lenders |
| Rates | Often above auto loan rates |
Ways to reduce the cost
- Put more money down.
- Get pre-approved by a credit union or marine lender.
- Compare the APR, not only the monthly payment.
- Budget for storage, insurance and maintenance.
Frequently asked questions
How much is a monthly boat payment?
It depends on the price, rate and term. A $45,000 boat with 15% down at 8.5% for 15 years is about $410 a month with 6% sales tax and fees, before insurance and storage.
What is the typical boat loan term?
Many lenders offer 10 to 20 years for larger boats and shorter terms for smaller or older boats.
How much down payment do I need for a boat?
Usually 10% to 20%, and sometimes more for used boats or lower credit scores.
What other costs come with boat ownership?
Insurance, storage or slip fees, fuel, maintenance, registration and winterizing can add thousands of dollars a year.
Can I deduct boat loan interest?
Only if the boat qualifies as a second home with sleeping, cooking and toilet facilities. Ask a tax professional.
Last reviewed: November 2026. Estimates only, not financial, tax or legal advice.