Missouri Boat Registration

by Boat Alert / Last Updated: May 7, 2026 / State Titling

To legally operate a motorized vessel on Missouri waters, the boat must be registered with the Missouri Department of Revenue. Registration is required for all motorized watercraft and sailboats over 12 feet in length. Non-motorized vessels under 12 feet — such as canoes, kayaks, and paddleboards — are generally exempt from registration requirements, though owners may register them voluntarily.

Registration must be renewed annually. Missouri boat registrations expire on June 30 of each year regardless of when they were issued, so even a registration obtained in May will expire the following June 30.

What Documents Are Needed to Register a Boat in Missouri?

When registering a boat in Missouri for the first time, you will typically need to provide:

• Proof of ownership — a Manufacturer’s Certificate of Origin (MCO) for new boats, or a properly assigned Missouri boat title for used boats
• Valid photo ID — a driver’s license or state-issued ID
• Proof of Missouri sales tax payment or an exemption certificate
• Hull Identification Number (HIN) — found on the transom of the boat
• Completed application form — Missouri Department of Revenue Form 4157 (Application for Missouri Watercraft or Outboard Motor Title and Registration)

If the boat was purchased from a private seller out of state, additional documentation such as a bill of sale or a foreign title may be required.

Missouri Boat Registration Fees

Registration fees in Missouri are based on the length of the vessel. As of the most recent schedule, fees are structured as follows:

Outboard motors also require separate titling in Missouri, which carries an additional fee. Boat trailers must be titled and registered through the standard vehicle registration process at your local license office.

Note: Fees are subject to change. Always verify the current fee schedule with the Missouri Department of Revenue before submitting your application.

Missouri Boat Titling

Missouri is a title state, meaning that ownership of a boat is established through a state-issued certificate of title rather than just a bill of sale. When you purchase a used boat in Missouri, you must transfer the title into your name within 30 days to avoid late penalties.

The title will reflect any recorded security interests (liens). If you are buying a used boat, always verify that the title is clean and free of liens before completing the purchase. A Missouri boat title search can reveal:

• Outstanding loans or lien holders
• Previous ownership history
• Whether the vessel has ever been reported stolen
• Any branded title issues (salvage, rebuilt, etc.)

You can order a comprehensive boat history report — including HIN lookup — through Boat-Alert.com to confirm the vessel’s background before committing to a purchase.

Missouri Boating Laws and Safety Requirements

Beyond registration, Missouri boaters must comply with the state’s boating safety rules enforced by the Missouri State Highway Patrol Water Division. Key requirements include:

• Life jackets (PFDs): One Coast Guard-approved wearable life jacket must be on board for every person. Children under 7 years of age must wear a life jacket at all times while the vessel is underway on Missouri waters.
• Fire extinguisher: Required on all motorized vessels with enclosed engine compartments.
• Navigation lights: Required for boats operated between sunset and sunrise.
• Sound-producing device: A horn or whistle is required on all vessels.
• Boating under the influence (BUI): Missouri law prohibits operating a vessel while intoxicated. The legal BAC limit is 0.08%, the same as for motor vehicles.

Missouri Boater Education Requirements

Missouri requires boater education for certain operators. Anyone born on or after January 1, 1984 must carry a boater education card to legally operate a motorized vessel of 10 horsepower or more on Missouri waters. The approved course can be completed online or in person through the Missouri State Highway Patrol or a NASBLA-approved provider.

How to Do a Missouri Boat Registration Lookup

There are several reasons you might need to perform a boat registration or title lookup in Missouri:

• Buying a used boat — to confirm ownership and check for liens
• Recovering a stolen vessel — to verify ownership claims
• Verifying a boat’s history — accident reports, salvage titles, and insurance records

Missouri boat title records are maintained by the Department of Revenue. For a comprehensive history report that combines state data with national databases (including theft records, accident reports, and lien searches), Boat-Alert.com provides HIN-based lookup reports for Missouri vessels.

How to Read a Missouri Boat Registration Number

Missouri registration numbers follow a standard format used across most U.S. states:

MO + 4 digits + 2 letters
Example: MO 1234 AB

The letters MO identify the state of registration. The number must be displayed on both sides of the forward half of the vessel in block characters at least 3 inches high, in a color that contrasts with the hull. The current registration validation sticker must be affixed near the registration number.

Transferring a Missouri Boat Title

When selling or gifting a boat in Missouri, the seller must complete the assignment section on the back of the title. The buyer then submits the assigned title to the Department of Revenue to obtain a new title in their name. Both parties should retain a copy of a signed bill of sale for their records.

If the title has been lost, the owner must apply for a duplicate Missouri boat title before the vessel can be transferred.

Missouri Boat Registration Renewal

Missouri boat registrations must be renewed by June 30 each year. Renewal notices are typically mailed to the address on file. You can renew:

• Online through the Missouri Department of Revenue portal
• By mail using the renewal notice
• In person at your local license office

Failure to renew on time may result in late fees and the inability to legally operate the vessel until registration is reinstated.

Frequently Asked Questions About Missouri Boat Registration

Do I need to register a kayak or canoe in Missouri? Non-motorized vessels are generally exempt from registration in Missouri unless they are sailboats over 12 feet. Kayaks, canoes, and paddleboards used on state waters do not need to be registered.

Can I operate a boat in Missouri with an out-of-state registration? Yes. Boats registered in other states may operate on Missouri waters for up to 60 consecutive days without obtaining a Missouri registration, provided the vessel’s home-state registration is current.

How do I find out if a Missouri boat has a lien? Liens on Missouri-titled boats are recorded with the Department of Revenue and will appear on the title. You can also run a HIN-based history report through Boat-Alert.com to check for recorded security interests before purchasing a used vessel.

What is a HIN and where do I find it on my boat? The Hull Identification Number (HIN) is a unique 12-character identifier assigned to a vessel by the manufacturer. It is located on the starboard (right) side of the transom at or near the top. For homemade or pre-1972 boats in Missouri, the state may issue a HIN prefixed with MOZ.

What happens if I buy a boat without a title in Missouri? Buying a boat without a title is risky in a title state like Missouri. You may need to apply for a bonded title or go through a title search process to establish ownership. Always request the title before completing any purchase.

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