What Important Questions You Should Ask When Buying a Boat
Spring is in the air, and that signals a time for the boats to be on the water. If you are buying a boat, there are details that should be inquired about. Even the most honest boat salesman won’t divulge all his secrets, so be ready to ask all the questions, from the mundane to the manic. Not sure where to start? We’ve put together a comprehensive list that will help ensure you learn everything there is to learn about the boat in your sights.
Phone Conversation
Prior to meeting to view the boat, there are a few lifestyle questions that should be asked prior. Find out answers to questions such as how many people can comfortably fit, if it is easy to tow and launch, and what the primary use is (fishing, cruising, watersports, etc.).
Another category of questions that can be asked via a phone call is ownership costs. You could ask similar questions to:
- What are the average yearly maintenance costs?
- What does insurance typically cost?
- What type of fuel does it use, and what’s the fuel efficiency?
- Where has it been serviced?
Additional information to find out before meeting for a viewing and sea trial includes title information, outstanding loans or liens, and whether the registration and documentation are up to date.
Asking in Person
Once you are satisfied that the seller is serious about selling and has all his ducks in a row, prepare a detailed list of questions to ask during the meet.
Condition and History
The first set of questions to ask can relate to a new patient intake form at a doctor’s office. This line of questioning can be mundane, yet important. To get a detailed picture of the life of the boat so far, ask questions such as:
- Why are you selling the boat?
- How old is the boat and how many owners has it had?
- Has it ever been in an accident, storm, or grounding?
- Is there any history of water intrusion or structural damage?
- Do you have maintenance and service records?
- Has it been stored in water or on land? Covered or uncovered?
Hull and Structure
Taking a few minutes to learn about the essence of the boat is imperative and can be done fairly quickly. Just a few questions:
- Are there any soft spots on the deck or transom?
- Has the hull ever been repaired or repainted?
- Are there any visible cracks, blisters, or corrosion?
Engine and Mechanical
This is where the ‘manic’ questions might be best applied. And while it might feel like you’re placing the seller ‘on trial’, getting all the details about the mechanical condition and engine life isn’t manic, it’s mandatory.
Ask about how many engine hours are on the boat and inquire if the engine has been rebuilt or repaired. Are there any mechanical issues that should be shared? Ask about the date of the last full service and request the service receipts from the seller. Also, find out if the boat is under a warranty that can be transferred upon the finalized sale.
Ownership Costs
Know what to expect with your potential purchase by asking the following questions:
What does the insurance typically cost?
What type of fuel does it use, and what’s the fuel efficiency?
Where has the boat been serviced? (again, ask for documentation)
What are the average yearly maintenance costs?
Extras and Onboard Equipment
And you will want to take note of the equipment and extras on the boat at the time of the meet. Is the GPS or radar included? What electronics stay with the boat?
What about safety items? Are the life jackets, flares, and fire extinguishers included in the sale?
Is the trailer included, or available for an extra amount? What condition is it in?
Doing your due diligence before meeting and during the sea trial is important. Don’t worry if you’re asking all the right questions; a serious seller will understand and shouldn’t be annoyed.
Monthly Budget Questions
To ensure you know what to expect once the title has been signed over, consider asking about the recurring costs of insurance, storage or slip fees, fuel costs, and maintenance. A rule of thumb for annual maintenance costs is 10% of the boat value. Also, factor in the cost of the annual registration.
Red Flags
There’s no harm in walking away from a potential purchase. Consider pulling the cord on the sale if the seller refuses to take you on a sea trial. If the ownership is unclear or there is no title, that’s a headache you don’t need. If there is visible major corrosion on the engine or soft spots in the deck/transom, it’s not what you want. And, of course, if there is a strong fuel smell in the bilge, run, don’t walk, away.
So, in conclusion, do your homework and ask those important questions. Go over the boat with a fine-tooth comb and know exactly what you are purchasing. A solid seller will likely be organized and have the documentation on hand at the meeting. These steps will help you make a sound decision and should take some guesswork out of the process.
Frequently Asked Questions:
What should I look for when buying a used boat?
Starting with the exterior, inspect the hull closely. Look for cracks and soft spots. Check the condition of the gelcoat and notice if it is fading or chalking. Ensure the transom is in good condition and not soft or sagging. Inspect for signs of past grounding.
For a boat with an outboard or inboard engine, start the boat and check the operation. Check for vibrations, odd noises, or smoke. Check the lower unit/powerhead condition. Consider an engine compression test for older boats. Check over the plumbing and Interior for leaks, mold, or moisture.
Test the cabin and navigation lights, the battery condition, and all gauges, switches, and bilge pumps. If electronics are included, test the GPS, VHF radio, and fishfinder.
View documentation and records of the boat’s title and registration, previous owners, maintenance logs, and any accident or insurance claims.
Take it on a sea trial and note how it handles at slow and fast speeds. Consider the steering responsiveness and pay attention to any vibration or unusual noises. Finally, check the engine’s performance under load.
For complete peace of mind, consider lining up a professional marine survey. Results from the survey will include hidden problems identified, a fair boat value assessment, and any safety issue detection.
How do I check the history of a used boat before buying?
Start by getting the Hull Identification Number (HIN). All boats made after 1972 have a HIN, and it is usually on the upper right corner of the transom. Occasionally, it can be found inside the engine compartment.
Make sure the HIN matches the title and registration, has no signs of tampering, and is clearly readable.
Verify the title and registration by contacting your state’s Department of Motor Vehicles (DMV) and confirm the current registered owner. Also, make sure there are no outstanding liens and no salvage or rebuilt title brands.
If the sale includes the trailer, check on that title as well.
Larger boats that are over five net tons may be federally documented through the United States Coast Guard. This pertains mostly to offshore cruisers, yachts, and commercial-use boats.
The USCG Vessel Documentation Center database reveals the ownership history, outstanding loans, and vessel name changes.
Another step is to run a boat history report or a boat alert. This will provide information on any accidents, storm or hurricane damage, salvage records, theft reports, and the registration history of the boat.
Also, be sure to check for liens by checking state title records. Ask for maintenance and service records to learn of the quality of upkeep provided by previous owners. Ask for engine service logs, winterization records, major repair receipts, and all the warranty papers.
A well-documented boat usually is a well-maintained boat.
How do I know if a used boat is in good condition before buying?
Start With the Overall Appearance
Does it look well cared for?
Is it clean but not freshly “detailed to hide problems”?
Do compartments smell dry (not moldy or fuel-heavy)?
Inspect the Hull Carefully
Look for:
Cracks around stress areas (corners, cleats, transom)
Blisters or bubbling under the gelcoat
Repairs that don’t match the surrounding finish
Soft spots on the deck (walk around and feel for spongy areas)
Tap suspicious areas lightly. A solid hull sounds sharp; a dull thud may mean water intrusion.
Check the Transom
The transom (back of the boat) is critical:
Push down on the outboard (if applicable) and watch for flexing
Look for cracks radiating from mounting bolts
Check for water stains inside
A weak transom is expensive to repair.
Evaluate the Engine
Whether inboard or outboard:
Start it cold (don’t let the seller warm it up first)
Listen for knocking or irregular idle
Look for excessive smoke: Blue = burning oil
White = possible water issues
Check engine hours (compare to age)
Inspect for corrosion, especially in saltwater boats
If you’re serious about buying, ask for a compression test.
Check Wiring and Electrical Systems
Are wires neatly secured or a tangled mess?
Any corroded terminals?
Do all gauges work?
Test bilge pumps, lights, horn, electronics
Saltwater corrosion is a common hidden problem.
Interior and Structure
Open every hatch
Check for standing water
Look for mildew, delamination, or rotted wood
Sit on seats — do they feel solid?
Soft flooring or musty smells are warning signs.
Check Plumbing (if equipped)
For boats with toilets or sinks:
Flush the toilet
Check for leaks
Inspect hoses for cracking
Look for signs of old sewage odor (can indicate tank issues)
Inspect Trailer (if included)
Look for things such as :
Rust on frame?
Tire condition?
Working lights?
Greased wheel bearings?
A bad trailer adds unexpected expense.
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