Maryland Boat & Trailer Registration Guide

Maryland boat and trailer registration requirements and fees can feel confusing, but the rules are straightforward once you know the basics. Whether you’re a new boat owner or just moved to the state, you’ll need to follow Maryland Department of Natural Resources (DNR) guidelines to stay legal on the water.

As of 2026, all motorized boats and most trailers used on public roads must be registered, with fees based on vessel length and trailer weight. The process changes depending on your boat type, size, and whether it’s motorized.

Registration is valid for 1, 2 years depending on the vessel.

Do You Need to Register Your Boat or Trailer in Maryland?

If your boat has a motor, you must register it with the Maryland DNR. This applies to all motorized vessels, regardless of size. Non-motorized boats like kayaks, canoes, and rowboats under 7 feet don’t need registration.

Trailers are a separate issue. If your trailer is used on public roads, it must be registered with the Maryland Motor Vehicle Administration (MVA). The rules differ based on weight and whether the trailer is homemade or commercially built.

How Maryland Boat Registration Works

What Boats Require Registration

All motorized boats operating on Maryland waters must be registered. This includes personal watercraft like jet skis. The registration process involves submitting an application, providing proof of ownership, and paying a fee based on the boat’s length.

Sailboats with auxiliary engines also fall under this requirement. Even if you primarily use sails, the presence of a motor means you need to register.

What’s Exempt (and Why)

Non-motorized boats under 7 feet in length are exempt from registration. This covers most kayaks, canoes, and small rowboats. Additionally, boats documented with the U.S.

Coast Guard (USCG) don’t need state registration, but they must display their USCG documentation number.

Boats used exclusively on private property are also exempt. If you only use your boat on a private pond or lake, you don’t need to register it with the state.

Maryland Trailer Registration Rules

Trailers used to transport boats on public roads must be registered with the MVA. This applies to all trailers, regardless of whether they’re carrying a boat or not.

When a Trailer Needs Its Own Registration

If your trailer weighs over 3,000 pounds, it must be titled and registered. Trailers under 3,000 pounds only need registration if they’re used on public roads. Homemade trailers must pass an inspection before they can be registered.

When It Doesn’t

Trailers used exclusively on private property don’t need registration. Additionally, trailers that are permanently attached to a boat may not require separate registration. Always check with the MVA to confirm your specific situation.

Step-by-Step: How to Register Your Boat in Maryland

What You’ll Need Before You Start

Gather your boat’s Hull Identification Number (HIN), proof of ownership, and a valid form of ID. If the boat was previously registered in another state, you’ll also need the out-of-state registration.

For new boats, the dealer will often handle the initial registration paperwork. If you’re registering a used boat, make sure the previous owner has signed over the title or registration to you.

Where and How to Apply

You can register your boat online through the Maryland DNR website, by mail, or in person at a DNR service center. Online registration is the fastest option, with most applications processed within a few business days.

If you prefer to register by mail, download the application form from the DNR website, fill it out, and send it along with the required documents and fee to the address listed on the form.

What Happens After You Submit

Once your application is processed, you’ll receive your registration certificate and decals in the mail. The decals must be affixed to your boat according to Maryland’s placement rules: on both sides of the bow, above the waterline, and clearly visible.

Your registration is valid for one or two years, depending on the type of boat. You’ll receive a renewal notice before your registration expires.

Maryland Boat and Trailer Registration Fees (2024)

Boat registration fees in Maryland are based on vessel length. The DNR uses a tiered system, so the longer your boat, the higher the fee.

Trailer registration fees depend on weight. The MVA charges based on the trailer’s gross vehicle weight rating (GVWR). Light trailers under 3,000 pounds typically cost around $50 to register, while heavier trailers can exceed $100.

Transferring or Renewing Your Registration

Selling or Buying a Used Boat/Trailer

When you sell a boat, you must remove the registration decals and provide the buyer with a signed bill of sale. The new owner has 15 days to register the boat in their name.

If you buy a used boat without a title, you’ll need to submit a surety bond or court order to prove ownership before the DNR will process your registration.

Renewal Deadlines and How to Do It

Maryland boat registrations expire annually or biennially, depending on the vessel. You’ll receive a renewal notice by mail about 60 days before expiration.

Late renewals incur a $10 penalty. If your registration lapses for more than 30 days, you may need to re-register the boat as a new application.

Common Mistakes (and How to Avoid Them)

Forgetting to update your address with the DNR or MVA can lead to delays in receiving renewal notices. Always notify both agencies within 15 days of moving.

Another common error is placing decals incorrectly. Maryland requires registration numbers on both sides of the bow, with decals placed three inches to the right of the numbers.

Some owners assume non-motorized boats don’t need any paperwork. While small kayaks and canoes are exempt, larger non-motorized vessels may still require registration.

Maryland-Specific Rules You Might Not Know

Maryland requires a boating safety certificate for anyone born after July 1, 1972, operating a motorized vessel. This applies even if your boat is registered in another state but used on Maryland waters.

If your boat is documented with the US Coast Guard, you must still display Maryland registration numbers if you use the boat primarily in Maryland.

Trailers with brakes must pass a safety inspection before registration. This applies to trailers with a GVWR over 3,000 pounds or those towing boats over 18 feet in length.

Final Checklist: Are You Ready to Register?

Before you submit your application, double-check that you have all required documents. For boats, this includes the HIN, proof of ownership, and payment. For trailers, you’ll need the VIN, title (if applicable), and weight information.

Verify your boat’s length and your trailer’s GVWR. These measurements directly impact your fees.

Confirm your registration period. Most boats need annual renewal, but some larger vessels may have a two-year cycle.

Step-by-Step: How to Register Your Trailer in Maryland

Start by gathering your trailer’s VIN and proof of ownership. If the trailer is new, the dealer will provide these. For used trailers, the previous owner must sign over the title.

Visit an MVA office or use their online portal to submit your application. You’ll need to pay the registration fee based on your trailer’s weight.

Once approved, you’ll receive your trailer’s registration card and license plate. Display the plate on the rear of the trailer.

FAQs About Maryland Boat and Trailer Registration