Florida Vessel Number: Registration, Display, and Renewal

A Florida vessel registration number is the “FL”-prefixed identifier the Florida Department of Highway Safety and Motor Vehicles (FLHSMV) assigns to your boat when you register it through a county tax collector. You must apply within 30 days of purchase, pay a fee based on the vessel’s length class, and then display the number in three-inch block characters on both sides of the forward hull, with the validation decal placed on the port side.

Which Boats Need a Florida Number

Every motorized vessel operated, used, or stored on Florida waters must be registered, no matter how small. Non-motorized boats need registration only if they are 16 feet or longer, and canoes, kayaks, racing shells, and rowing sculls are exempt regardless of length. The moment you clamp a motor onto a canoe, it needs a number.¹

A handful of vessels are exempt from registration entirely: boats used and stored only on private lakes or ponds with no public-water connection, U.S. Government vessels, and lifeboats carried aboard a larger ship.

How to Get Your Number

Registration is handled through your county tax collector’s office, and you apply at the same time you title the vessel. Bring the hull identification number (HIN) from the boat, a description of the vessel, and the name and address of every owner.² For a new boat from a dealer, you also need the manufacturer’s certificate of origin. For a used boat, bring the previous owner’s signed title, and for a private-party sale include a bill of sale. The HIN stamped on the hull must match the paperwork.

You have 30 days from the date of purchase to complete registration. During that window, keep proof of the purchase date on the boat whenever you operate it.³

Registration Fees by Length Class

Florida sorts vessels into seven classes by length, and the base annual fee climbs with each class:⁴

Class A-1 (under 12 feet): $5.50
Class A-2 (12 to under 16 feet): $16.25
Class 1 (16 to under 26 feet): $28.75
Class 2 (26 to under 40 feet): $78.25
Class 3 (40 to under 65 feet): $127.75
Class 4 (65 to under 110 feet): $152.75
Class 5 (110 feet or longer): $189.75

On top of the base fee, every registration includes a $2.25 service charge and a $1 Save the Manatee Trust Fund surcharge, and counties may add their own annual fee. For a Class 1 boat, the county portion is $8.85, which brings the combined state and county cost to roughly $40. If your vessel carries an Emergency Position Indicating Radio Beacon (EPIRB), or you own a Personal Locator Beacon (PLB), a reduced fee applies. Titling fees are separate: $5.25 for an electronic title, $7.75 for paper, $11.00 expedited, plus $4.00 more for a vessel previously registered out of state.³

What the Number Looks Like

Florida numbers use the federal format: the two-letter state prefix “FL,” then a run of numerals and letters unique to your boat. The number stays with the vessel for as long as it remains registered in Florida, so it does not change year to year the way a car tag might.

Where and How to Display It

Display rules are specific, and officers on the water enforce them:¹

Place the number on both sides of the forward half of the vessel, positioned so it is clearly legible. Airboats are the sole exception and may put the number on both sides of the rudder.
Use block characters at least three inches high, reading left to right.
Choose a solid color that contrasts with the hull: dark on light, or light on dark.

The FLHSMV also issues a validation decal showing when your registration expires. It goes on the port (left) side, within six inches before or after the registration number. Federally documented vessels may put the decal on a port-side window or windshield instead. Remove any decal from a previous year so only the current one is visible.

Keep the pocket-sized registration certificate onboard whenever the boat is in operation. Law enforcement can ask for it at any stop.

Keeping the Numbers Legible

The statute requires that numbers be “so maintained as to be clearly visible and legible.” Faded or peeling vinyl puts you out of compliance the same way missing numbers would.¹ Sun, salt, and humidity wear graphics down fast, especially on boats kept outdoors or in saltwater slips. Checking the lettering at the start of each season and replacing it before it becomes hard to read is cheaper than a citation.

When to Renew

For individually owned vessels, the registration period runs from the first day of the owner’s birth month through the last day of the month before the next birth month. If your birthday is in June, your registration runs June 1 through May 31. When a boat has multiple owners, the birth month of the person listed first controls.⁴

The renewal window is the 30-day period ending at midnight on your date of birth. Florida also offers a two-year option that covers 24 months instead of 12. Renewal notices come from the FLHSMV, and you can renew online, by mail, or in person.

If Your Boat Is Federally Documented

Vessels of at least five net tons may hold a Certificate of Documentation (COD) from the U.S. Coast Guard’s National Vessel Documentation Center. A documented boat does not get an “FL” number, but the owner still pays the Florida registration fee and receives a Florida registration certificate and decal.⁵ The hull displays the Coast Guard documentation number and vessel name in place of an “FL” number, and the Florida decal still goes on the port side.

Out-of-State Boats Visiting Florida

A vessel already registered in another state under a federally approved numbering system can be operated in Florida for up to 90 consecutive days without a Florida registration.³ After that, register in Florida. Owners who trailer their boats south for the winter should track the arrival date, because the 90-day clock starts the moment the boat enters Florida waters.

Replacing a Lost Certificate or Decal

If your registration certificate or decal is lost, stolen, or destroyed, any county tax collector’s office can issue a duplicate for $2.25.⁴ Only the registered owner or someone authorized in writing can request it. Complete Form HSMV 87015 (Application for Duplicate Registration, Replacement Decal, and Change of Classification) and submit it with the fee; the office typically issues the duplicate the same day.⁶ Since operating without a valid decal is a citable infraction, replacing one quickly is worth the small fee.

Penalties for Registration and Display Violations

Operating an unregistered or unnumbered vessel on Florida waters is a noncriminal infraction with a $100 civil penalty, cited on the water and answered in county court.⁷ Expired registrations carry their own penalties, with harsher amounts once the lapse exceeds six months.⁴ If you were actually current at the time of the stop and can show it, the court clerk may dismiss the case, though a dismissal fee can still apply. The expired-registration penalties do not apply to a vessel simply stored at a dock without being operated.

Display issues are cited separately. Illegible numbers, a missing decal, and failing to carry the registration certificate onboard are each their own infraction, so keeping the lettering fresh, the decal current, and the paperwork in a dry bag on the boat is the simplest way to avoid stacked tickets.

1
Florida Senate. Florida Code 328.48 – Vessel Registration, Application, Certificate, Number, Decal, Duplicate Certificate
2
The Florida Legislature. Florida Code 328.01 – Certificate of Title, Application
3
Florida Department of Highway Safety and Motor Vehicles. Vessel Titling and Registrations
4
Florida Senate. Florida Code 328.72 – Classification, Registration, Fees
5
The Florida Legislature. Florida Code 328.68 – Exemption From Ad Valorem Tax
6
Florida Department of Highway Safety and Motor Vehicles. Procedure VSRS-04 – Issuance of Duplicate Vessel Registration Certificates
7
Florida Senate. Florida Code 327.73 – Noncriminal Infractions